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SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
FEATURES Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply Interoperable with RS-232 down to +2.7V power source 1 A Low-Power Shutdown with Receivers Active (SP3222EH) Enhanced ESD Specifications: +15kV Human Body Model +15kV IEC1000-4-2 Air Discharge +8kV IEC1000-4-2 Contact Discharge 460Kbps Minimum Transmission Rate Ideal for Handheld, Battery Operated Applications
C1+ 1 V+ 2 C1C2+ C2VT2OUT R2IN 3 4 5 6 7 8
16 VCC 15 GND 14 T1OUT SP3232EH 13 R1IN 12 R1OUT 11 T1IN 10 9 T2IN R2OUT
Now Available in Lead Free Packaging
DESCRIPTION The SP3222EH and the 3232EH are 2 driver/2 receiver RS-232 transceiver solutions intended for portable or hand-held applications such as notebook or palmtop computers. Their data transmission rate of 460Kbps meeting the demands of high speed RS-232 applications. Both ICS have a high-efficiency, charge-pump power supply that requires only 0.1F capacitors for 3.3V operation. The charge pump allows the SP3222EH and the 3232EH series to deliver true RS-232 performance from a single power supply ranging from +3.3V to +5.0V. The ESD tolerance of the SP3222EH/3232EH devices exceeds +15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The SP3222EH device has a low-power shutdown mode where the devices' driver outputs and charge pumps are disabled. During shutdown, the supply current is less than 1A. SELECTION TABLE
MODEL SP3222EH SP3232EH Power Supplies +3.0V to +5.5V +3.0V to +5.5V RS-232 Drivers 2 2 RS-232 Receivers 2 2 External Components 4 4 Shutdown Yes No TTL 3-State Yes No No. of Pins 18, 20 16
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device. VCC................................................................-0.3V to +6.0V V+ (NOTE 1)................................................-0.3V to +7.0V V- (NOTE 1)................................................+0.3V to -7.0V V+ + |V-| (NOTE 1)...................................................+13V ICC(DC V CCor GND current)................................. +100mA Electrostatic Discharge HBM ......................................................................15kV IEC1000-4-2-AirDischarge....................................15kV IEC1000-4-2 Direct Contact....................................8kV Input Voltages TxIN, EN .....................................................-0.3V to +6.0V RxIN.............................................................................25V Output Voltages TxOUT.....................................................................13.2V RxOUT..............................................-0.3V to (VCC+ 0.3V) Short-Circuit Duration TxOUT...............................................................Continuous Storage Temperature.................................-65C to +150C Power Dissipation Per Package 20-pin SSOP (derate 9.25mW/oC above +70oC).......750mW 18-pin PDIP (derate 15.2mW/oC above +70oC)......1220mW 18-pin SOIC (derate 15.7mW/oC above +70oC)......1260mW 20-pin TSSOP (derate 11.1mW/oC above +70oC).....890mW 16-pin SSOP (derate 9.69mW/oC above +70oC).......775mW 16-pin PDIP (derate 14.3mW/oC above +70oC)......1150mW 16-pin Wide SOIC (derate 11.2mW/oC above +70oC)....900mW 16-pin TSSOP (derate 10.5mW/oC above +70oC).....850mW
NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, the following specifications apply for VCC= +3.0V to +5.0V with T AMB= T MINto T MAX PARAMETER DC CHARACTERISTICS Supply Current Shutdown Supply Current 0.3 1.0 1.0 10 mA A no load, TAMB = +25C, VCC = +3.3V, TxIN = VCCor GND SHDN=GND, TAMB= +25 C, VCC=+3.3V, TxIN=VCCor GND TxIN, EN, SHDN, Note 2 VCC=3.3V, Note 2 VCC=5.0V, Note 2 TxIN, EN, SHDN, TAMB = +25C receivers disabled IOUT=1.6mA IOUT=-1.0mA 3kload to ground at all driver outputs, TAMB=+25C VCC= V+ = V- = 0V, TOUT= 2V VOUT= 0V VOUT= 12V, VCC= 0V or 3.0V+5.5V, drivers disabled MIN TYP MAX UNITS CONDITIONS
LOGIC INPUTS AND RECEIVER OUTPUTS Input Logic Threshold LOW Input Logic Threshold HIGH Input Leakage Current Output Leakage Current Output Voltage LOW Output Voltage HIGH DRIVER OUTPUTS Output Voltage Swing Output Resistance Output Short-Circuit Current Output Leakage Current 5.0 300 35 60 25 5.4 V mA A VCC-0.6 VCC-0.1 2.0 2.4 0.01 0.05 1.0 10 0.4 0.8 V V A A V V
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
2
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, the following specifications apply for VCC= +3.0V to +5.0V with T AMB= T MINto T MAX.
PA R AM E T E R R E C EIV E R I N P U T S Input Voltage Range Input Threshold LOW Input Threshold HIGH Input Hysteresis Input Resistance TIMING CHARACTERISTICS Maximum Data Rate Driver Propagation Delay Receiver Propagation Delay Receiver Output Enable Time Receiver Output Disable Time Driver Skew Receiver Skew Transition-Region Slew Rate 460 1. 0 1.0 0.3 0.3 200 200 100 200 60 500 1000 Kbps s s s ns ns ns ns V/s | t PH L - t PL H | | t PH L - t PL H | VCC = 3.3V, RL = 3K, TAMB = 25oC, measurements taken from -3.0V to +3.0V o r + 3. 0 V t o - 3 . 0 V RL=3k, CL=1000pF, one driver switching tPHL, RL = 3K, CL = 1000pF tPLH, RL = 3K, CL = 1000pF tPHL, RxIN to RxOUT, CL=150pF tPLH, RxIN to RxOUT, CL=150pF 3 -15 0. 6 0.8 1.2 1.5 1.5 1.8 0.3 5 7 2.4 2.4 +15 V V V V k VCC=3.3V VCC=5.0V VCC=3.3V VCC=5.0V MIN. TYP. MAX. UNITS CONDITIONS
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
3
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for VCC= +3.3V, 460Kbps data rates, all drivers loaded with 3k, 0.1F charge pump capacitors, and TAMB= +25 C.
6
14 12 10
Slew Rate [V/s]
Transmitter Output Voltage [V]
4 2 0 0 -2 -4 500 1000 1500 2000 Vout+ Vout-
8 6 4 2 +Slew -Slew
-6 Load Capacitance [pF]
0 0 500 1000 1500 Load Capacitance [pF] 2000 2330
Figure 1. Transmitter Output Voltage VS. Load Capacitance for the SP3222EH and the SP3232EH
Figure 2. Slew Rate VS. Load Capacitance for the SP3222EH and the SP3232EH
40 35 Supply Current (mA) 30 25 20 15 10 5 0 0 500 1000 1500 2000 2500 3000
460Kbps 120Kbps 20Kbps
Load Capacitance (pF)
Figure 3. Supply Current VS. Load Capacitance when Transmitting Data for the SP3222EH and the SP3232EH
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
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PIN DESCRIPTION
PIN NUMBER NAME FUNCTION S P 3222 E H DIP/SO EN C1+ V+ C1C2+ C2VT1OUT T2OUT R1IN R2IN R1OUT R2OUT T1IN T2IN GND V CC SHDN NC Receiver Enable. Apply logic LOW for normal operation. Apply Logic HIGH to disable the receiver outputs (high-Z state). Positive terminal of the voltage doubler charge-pump capacitor. +5.5V generated by the charge pump. Negative terminal of the voltage doubler charge-pump capacitor. Positive terminal of the inverting charge-pump capacitor. Negative terminal of the inverting charge-pump capacitor. -5.5V generated by the charge pump. RS-232 driver output. RS-232 driver output. RS-232 receiver input. RS-232 receiver input. TTL/CMOS receiver output. TTL/CMOS receiver output. TTL/CMOS driver input. TTL/CMOS driver input. Ground. +3.0V to +5.5V supply voltage Shutdown Control Input. Drive HIGH for normal device operation. Drive LOW to shutdown the drivers (high-Z output) and the on-board power supply. No Connect. 1 2 3 4 5 6 7 15 8 14 9 13 10 12 11 16 17 18 SSOP/TS S O P 1 2 3 4 5 6 7 17 8 16 9 15 10 13 12 18 19 20 11, 14 S P 3232 E H
1 2 3 4 5 6 14 7 13 8 12 9 11 10 15 16 -
Table 1. Device Pin Description
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
5
EN
1
20 SHDN 19 VCC 18 GND 17 SP3222EH 16 T1OUT R1IN
C1+ 2 V+ C1C2+ C2VT2OUT R2IN 3 4 5 6 7 8 9
EN
1
18 SHDN 17 VCC 16 GND 15 SP3222EH 14 T1OUT R1IN
C1+ 2 V+ C1C2+ C2VT2OUT R2IN 3 4 5 6 7 8 9
15 R1OUT 14 NC
13 R1OUT 12 T1IN 11 T2IN 10 R2OUT
13 T1IN 12 T2IN 11 NC
R2OUT 10
DIP/SO
SSOP/TSSOP
Figure 4. Pinout Configurations for the SP3222EH
C1+ 1 V+ 2 C1C2+ C2VT2OUT R2IN 3 4 5 6 7 8
16 VCC 15 GND 14 T1OUT SP3232EH 13 R1IN 12 R1OUT 11 T1IN 10 9 T2IN R2OUT
Figure 5. Pinout Configuration for the SP3232EH
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
6
VCC + 19 VCC 2 C1+ 0.1F 4 C15 C2+ C2 + 0.1F 6 C213 T1IN 12 T2IN V+ 3 *C3 + 0.1F
C1 + 0.1F 4 C15 C2+ +
VCC 17 VCC 2 C1+ V+ 3 *C3 + 0.1F
C5
0.1F
C5
0.1F
C1
+
SP3222EH SSOP TSSOP
V-
7 C4 + 0.1F
C2 + 0.1F
SP3222EH DIP/SO
V-
7 C4 + 0.1F
6 C212 T1IN 11 T2IN T1OUT T2OUT 15 8
T1OUT T2OUT
17 8 RS-232 OUTPUTS
LOGIC INPUTS
LOGIC INPUTS
RS-232 OUTPUTS
15 R1OUT LOGIC OUTPUTS 5k 10 R2OUT 5k 1 EN GND 18
R1IN
16 RS-232 INPUTS
LOGIC OUTPUTS
13 R1OUT 5k 10 R2OUT 5k 1 EN GND
R1IN
14 RS-232 INPUTS
R2IN
9
R2IN
9
SHDN
20
SHDN
18
*can be returned to either VCCor GND
16
*can be returned to either VCCor GND
Figure 6. SP3222EH Typical Operating Circuits
VCC + 16 VCC 1 C1+ 0.1F 3 C14 C2+ C2 + 0.1F 5 C211 T1IN 10 T2IN T1OUT T2OUT 14 7 RS-232 OUTPUTS V+ 2 *C3 + 0.1F
C5
0.1F
C1
+
SP3232EH
V-
6 C4 + 0.1F
LOGIC INPUTS
12 R1OUT LOGIC OUTPUTS 5k 9 R2OUT 5k
R1IN
13 RS-232 INPUTS
R2IN
8
GND 15 *can be returned to either VCCor GND
Figure 7. SP3232EH Typical Operating Circuit
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
7
DESCRIPTION The SP3222EH and SP3232EH are 2-driver/ 2-receiver devices ideal for portable or hand-held applications. The SP3222EH features a 1A shutdown mode that reduces power consumption and extends battery life in portable systems. Its receivers remain active in shutdown mode, allowing external devices such as modems to be monitored using only 1A supply current. The SP3222EH/3232EH transceivers meet the EIA/TIA-232 and V.28/V.24 communication protocols. They feature Sipex's proprietary on-board charge pump circuitry that generates 2 x VCC for RS-232 voltage levels from a single +3.0V to +5.5V power supply. The SP3222EH/ 3232EH drivers operate at a minimum data rate of 460Kbps. THEORY OF OPERATION The SP3222EH/3232EH are made up of three basic circuit blocks: 1. Drivers, 2. Receivers, and 3. the Sipex proprietary charge pump. Drivers The drivers are inverting level transmitters that convert TTL or CMOS logic levels to +5.0V EIA/TIA-232 levels inverted relative to the input logic levels. Typically, the RS-232 output voltage swing is +5.5V with no load and at least +5V minimum fully loaded. The driver outputs are protected against infinite short-circuits to ground without degradation in reliability. Driver outputs will meet EIA/TIA-562 levels of +3.7V with supply voltages as low as 2.7V. The drivers have a minimum data rate of 460Kbps fully loaded with 3K in parallel with 1000pF, ensuring compatibility with PC-to-PC communication software. The slew rate of the driver output is internally limited to a maximum of 30V/s in order to meet the EIA standards (EIA RS-232D 2.1.7, Paragraph 5). The transition of the loaded output from HIGH to LOW also meets the monotonicity requirements of the standard. Figure 8 shows a loopback circuit used to test the RS-232 drivers. Figure 9 shows the test results of the loopback circuit with all drivers active at 120Kbps and RS-232 loads in parallel with 1000pF capacitors. Figure 10 shows the test results where one driver is active at 460Kbps and all drivers are loaded with an RS-232 receiver in parallel with a 1000pF capacitor. The SP3222EH driver's output stages are tri-stated in shutdown mode. When the power is off, the SP3222EH device permits the outputs to be driven up to +12V. Because the driver's inputs do not have pull-up resistors, unused inputs should be connected to VCCor GND. In the shutdown mode, the supply current is less than 1A, where SHDN = LOW. When the SP3222EH device is shut down, the device's driver outputs are disabled (tri-stated) and the charge pumps are turned off with V+ pulled down to VCC and V- pulled to GND. The time required to exit shutdown is typically 100s. SHDN is connected to VCC if the shutdown mode is not used. SHDN has no effect on RxOUT or RxOUTB. As they become active, the two driver outputs go to opposite RS-232 levels: one driver input is HIGH and the other LOW. Note that the drivers are enabled only when the magnitude of V- exceeds approximately 3V.
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
8
VCC +
C5
0.1F C1+ 0.1F C1-
VCC V+ C3 C2+ + 0.1F
C1
+
C2
+
0.1F C2-
SP3222EH SP3232EH
VC4 + 0.1F
LOGIC INPUTS LOGIC OUTPUTS
TxIN
TxOUT
RxOUT 5k EN GND
RxIN
*SHDN
VCC
1000pF * SP3222 only
Figure 8. SP3222EH/3232EH Driver Loopback Test Circuit
T1 IN
T1 IN
T1 OUT
T1 OUT
R1 OUT
R1 OUT
Figure 9. Driver Loopback Test Results at 120Kbps
Figure 10. Driver Loopback Test Results at 460Kbps
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
9
Receivers The receivers convert EIA/TIA-232 levels to TTL or CMOS logic output levels. The SP3222EH receivers have an inverting tri-state output.Receiver outputs (RxOUT) are tri-stated when the enable control EN = HIGH. In the shutdown mode, the receivers can be active or inactive. EN has no effect on TxOUT. The truth table logic of the SP3222EH driver and receiver outputs can be found in Table 2. Since receiver input is usually from a transmission line where long cable lengths and system interference can degrade the signal and inject noise, the inputs have a typical hysteresis margin of 300mV. Should an input be left unconnected, a 5k pulldown resistor to ground forces the output of the receiver HIGH. Charge Pump The Sipex patented charge pump (5,306,954) uses a four-phase voltage shifting technique to attain symmetrical 5.5V power supplies and requires four external capacitors. The internal power supply consists of a regulated dual charge pump that provides an output voltage of 5.5V regardless of the input voltage (VCC) over the +3.0V to +5.5V range.
In most circumstances, decoupling the power supply can be achieved adequately using a 0.1F bypass capacitor at C5 (refer to Figures 6 and7 ). In applications that are sensitive to power-supply noise,VCC and ground can be decoupled with a capacitor of the same value as charge-pump capacitor C1. It is always important to physically locate bypass capacitors close to the IC. The charge pump operates in a discontinuous mode using an internal oscillator. If the output voltage is less than 5.5V, the charge pump is enabled. If the output voltage exceeds 5.5V, the charge pump is disabled. An oscillator controls the four phases of the voltage shifting. A description of each phase follows. Phase 1: VSSCharge Storage (Figure 12) During this phase of the clock cycle, the positive side of capacitors C1 and C2 are charged to VCC. Cl+ is then switched to GND and the charge in C1- is transferred to C2-. Since C2+ is connected to VCC, the voltage potential across capacitor C2 is now 2 times VCC. Phase 2: VSSTransfer (Figure 13) Phase two of the clock connects the negative terminal of C2 to the VSS storage capacitor and the positive terminal of C2 to GND. This transfers a negative generated voltage to C3. This generated voltage is regulated to a minimum voltage of -5.5V. Simultaneous with the transfer of the voltage to C3, the positive side of capacitor C1 is switched to VCC and the negative side is connected to GND. Phase 3: VDDCharge Storage (Figure 15) The third phase of the clock is identical to the first phase -- the charge transferred in C1 produces -VCC in the negative terminal of C1, which is applied to the negative side of capacitor C2. Since C2+ is at VCC, the voltage potential across C2is 2 times V CC.
SHDN 0 0 1 1
EN 0 1 0 1
Tx O UT Tri-state Tri-state Active Active
RxOUT Active Tri-state Active Tri-state
Table 2. Truth Table Logic for Shutdown and Enable Control
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
10
Phase 4: VDDTransfer (Figure 16) The fourth phase of the clock connects the negative terminal of C2 to GND, and transfers this positive generated voltage across C2to C 4, the VDD storage capacitor. This voltage is regulated to +5.5V. At this voltage, the internal oscillator is disabled. Simultaneous with the transfer of the voltage to C4, the positive side of capacitor C1 is switched to VCC and the negative side is connected to GND, allowing the charge pump cycle to repeat. The charge pump cycle will continue as long as the operational conditions for the internal oscillator are present. Since both V+ and V- are separately generated from VCC; in a no-load condition V+ and V- will be symmetrical. Older charge pump approaches that generate V- from V+ will show a decrease in the magnitude of V- compared to V+ due to the inherent inefficiencies in the design. The charge pump clock rate typically operates at 250kHz. The external capacitors can be as low as 0.1F with a 16V breakdown voltage rating. ESD Tolerance The SP3222EH/3232EH series incorporates ruggedized ESD cells on all driver output and receiver input pins. The improved ESD tolerance is at least 15kV without damage or latch-up. Three methods of ESD testing are performed: a) MIL-STD-883, Method 3015.7 b) IEC1000-4-2 Air-Discharge c) IEC1000-4-2 Direct Contact The Human Body Model has been the generally accepted ESD testing method for semiconductors. This method is also specified in MIL-STD883, Method 3015.7 for ESD testing. The premise of this ESD test is to simulate the human body's potential to store electro-static energy and
discharge it to an integrated circuit. The simulation is performed by using a test model as shown in Figure 17. This method will test the IC's capability to withstand an ESD transient during normal handling such as in manufacturing areas where the ICs tend to be handled frequently. The IEC-1000-4-2, formerly IEC801-2, is used for testing ESD on equipment and systems. For system manufacturers, they must guarantee a certain amount of ESD protection since the system itself is exposed to the outside environment and human presence. The premise with IEC1000-4-2 is that the system is required to withstand an amount of static electricity when ESD is applied to points and surfaces of the equipment that are accessible to personnel during normal usage. In many cases, the RS232 transceiver IC receives most of the ESD current when the ESD source is applied to the connector pins. The test circuit for IEC1000-4-2 is shown on Figure 18. There are two methods within IEC1000-4-2, the Air Discharge method and the Contact Discharge method. With the Air Discharge Method, an ESD voltage is applied to the equipment under test (EUT) through air. This simulates an electrically charged person ready to connect a cable onto the rear of the system. The high energy potential on the person discharges through an arcing path to the rear panel of the system before he or she touches the system. This energy, whether discharged directly or through air, is predominantly a function of the discharge current rather than the discharge voltage. Variables with an air discharge such as approach speed of the object carrying the ESD potential to the system and humidity will tend to change the discharge current. For example, the rise time of the discharge current varies with the approach speed.
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
11
VCC= +5V
+5V C1
+ -
C4
+ - +
C2
+ - -
VDDStorage Capacitor VSSStorage Capacitor
-5V
-5V
C3
Figure 12. Charge Pump -- Phase 1
VCC= +5V
C4
+ - +
C1
+ -
C2
+ - -
VDDStorage Capacitor VSSStorage Capacitor
-10V
C3
Figure 13. Charge Pump -- Phase 2
[ +6V a) C2+ T ]
GND 1 GND 2 b) C2-
T
-6V
T Ch1 2.00V Ch2 2.00V M 1.00 s Ch1 5.48V
Figure 14. Charge Pump Waveforms
VCC= +5V
+5V C1
+ -
C4
+ - +
C2
+ - -
VDDStorage Capacitor VSSStorage Capacitor
-5V
-5V
C3
Figure 15. Charge Pump -- Phase 3
VCC= +5V
+10V C1
+ -
C4
+ - +
C2
+ - -
VDDStorage Capacitor VSSStorage Capacitor
C3
Figure 16. Charge Pump -- Phase 4
Date: 1/18/06 SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers (c) Copyright 2006 Sipex Corporation
12
RC RC SW1 SW1
DC Power Source
RS RS SW2 SW2 CS CS
Device Under Test
Figure 17. ESD Test Circuit for Human Body Model
The Contact Discharge Method applies the ESD current directly to the EUT. This method was devised to reduce the unpredictability of the ESD arc. The discharge current rise time is constant since the energy is directly transferred without the air-gap arc. In situations such as hand held systems, the ESD charge can be directly discharged to the equipment from a person already holding the equipment. The current is transferred on to the keypad or the serial port of the equipment directly and then travels through the PCB and finally to the IC.
The circuit models in Figures 17 and 18 represent the typical ESD testing circuits used for all three methods. The CS is initially charged with the DC power supply when the first switch (SW1) is on. Now that the capacitor is charged, the second switch (SW2) is on while SW1 switches off. The voltage stored in the capacitor is then applied through RS, the current limiting resistor, onto the device under test (DUT). In ESD tests, the SW2 switch is pulsed so that the device under test receives a duration of voltage.
Contact-Discharge Module
RC C SW1
DC Power Source
RS S
RV SW2
CS S
Device Under Test
RS and RV add up to 330ffor IEC1000-4-2. 330 or
Figure 18. ESD Test Circuit for IEC1000-4-2
Date: 1/18/06 SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers (c) Copyright 2006 Sipex Corporation
13
For the Human Body Model, the current limiting resistor (RS) and the source capacitor (CS) are 1.5k an 100pF, respectively. For IEC-1000-4-2, the current limiting resistor (RS) and the source capacitor (CS) are 330 an 150pF, respectively. The higher CSvalue and lower R Svalue in the IEC1000-4-2 model are more stringent than the Human Body Model. The larger storage capacitor injects a higher voltage to the test point when SW2 is switched on. The lower current limiting resistor increases the current charge onto the test point.
30A
15A
0A t=0ns t Figure 19. ESD Test Waveform for IEC1000-4-2 t=30ns
Device Pin Tested
Driver Outputs Receiver Inputs
Human Body Model
15kV 15kV
I
Air Discharge
15kV 15kV
IEC1000-4-2 Direct Contact
8kV 8kV
Level
4 4
Table 3. Transceiver ESD Tolerance Levels
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
14
PACKAGE: PLASTIC SHRINK SMALL OUTLINE (SSOP)
E H
D A O e B A1 L
DIMENSIONS (Inches) Minimum/Maximum (mm) A A1 B D E e H L O
16-PIN 0.068/0.078 (1.73/1.99) 0.002/0.008 (0.05/0.21) 0.010/0.015 (0.25/0.38) 0.239/0.249 (6.07/6.33) 0.205/0.212 (5.20/5.38) 0.0256 BSC (0.65 BSC) 0.301/0.311 (7.65/7.90) 0.022/0.037 (0.55/0.95) 0/8 (0/8)
20-PIN 0.068/0.078 (1.73/1.99) 0.002/0.008 (0.05/0.21) 0.010/0.015 (0.25/0.38) 0.278/0.289 (7.07/7.33) 0.205/0.212 (5.20/5.38) 0.0256 BSC (0.65 BSC) 0.301/0.311 (7.65/7.90) 0.022/0.037 (0.55/0.95) 0/8 (0/8)
24-PIN 0.068/0.078 (1.73/1.99) 0.002/0.008 (0.05/0.21) 0.010/0.015 (0.25/0.38) 0.317/0.328 (8.07/8.33) 0.205/0.212 (5.20/5.38) 0.0256 BSC (0.65 BSC) 0.301/0.311 (7.65/7.90) 0.022/0.037 (0.55/0.95) 0/8 (0/8)
28-PIN 0.068/0.078 (1.73/1.99) 0.002/0.008 (0.05/0.21) 0.010/0.015 (0.25/0.38) 0.397/0.407 (10.07/10.33) 0.205/0.212 (5.20/5.38) 0.0256 BSC (0.65 BSC) 0.301/0.311 (7.65/7.90) 0.022/0.037 (0.55/0.95) 0/8 (0/8)
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
15
PACKAGE: PLASTIC DUAL-IN-LINE (NARROW)
E1 E
D1 = 0.005" min. (0.127 min.) D
A1 = 0.015" min. (0.381min.) A = 0.210" max. (5.334 max). A2 C O eA= 0.300 BSC (7.620 BSC) L
e = 0.100 BSC (2.540 BSC)
B1 B
ALTERNATE END PINS (BOTH ENDS)
DIMENSIONS (Inches) Minimum/Maximum (mm) A2 B B1 C D E E1 L O
16-PIN 0.115/0.195 (2.921/4.953) 0.014/0.022 (0.356/0.559) 0.045/0.070 (1.143/1.778) 0.008/0.014 (0.203/0.356)
18-PIN 0.115/0.195 (2.921/4.953) 0.014/0.022 (0.356/0.559) 0.045/0.070 (1.143/1.778) 0.008/0.014 (0.203/0.356)
0.780/0.800 0.880/0.920 (19.812/20.320) (22.352/23.368) 0.300/0.325 (7.620/8.255) 0.240/0.280 (6.096/7.112) 0.115/0.150 (2.921/3.810) 0/ 15 (0/15) 0.300/0.325 (7.620/8.255) 0.240/0.280 (6.096/7.112) 0.115/0.150 (2.921/3.810) 0/ 15 (0/15)
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
16
PACKAGE: PLASTIC SMALL OUTLINE (SOIC)
E
H
D A O e B A1 L
DIMENSIONS (Inches) Minimum/Maximum (mm) A A1 B D E e H L O
16-PIN 0.090/0.104 (2.29/2.649) 0.004/0.012 (0.102/0.300) 0.013/0.020 (0.330/0.508) 0.398/0.413 (10.10/10.49) 0.291/0.299 (7.402/7.600) 0.050 BSC (1.270 BSC) 0.394/0.419 (10.00/10.64) 0.016/0.050 (0.406/1.270) 0/8 (0/8)
18-PIN 0.090/0.104 (2.29/2.649)) 0.004/0.012 (0.102/0.300) 0.013/0.020 (0.330/0.508) 0.447/0.463 (11.35/11.74) 0.291/0.299 (7.402/7.600) 0.050 BSC (1.270 BSC) 0.394/0.419 (10.00/10.64) 0.016/0.050 (0.406/1.270) 0/8 (0/8)
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
17
PACKAGE:
PLASTIC THIN SMALL OUTLINE (TSSOP)
E2 E
D A O e B A1 L
DIMENSIONS in inches (mm) Minimum/Maximum A A1 B D E e E2 L O
16-PIN - /0.043 (- /1.10) 0.002/0.006 (0.05/0.15) 0.007/0.012 (0.19/0.30) 0.193/0.201 (4.90/5.10) 0.169/0.177 (4.30/4.50) 0.026 BSC (0.65 BSC) 0.126 BSC (3.20 BSC) 0.020/0.030 (0.50/0.75) 0/8
20-PIN - /0.043 (- /1.10) 0.002/0.006 (0.05/0.15) 0.007/0.012 (0.19/0.30) 0.252/0.260 (6.40/6.60) 0.169/0.177 (4.30/4.50) 0.026 BSC (0.65 BSC) 0.126 BSC (3.20 BSC) 0.020/0.030 (0.50/0.75) 0/8
Date: 1/18/06
SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers
(c) Copyright 2006 Sipex Corporation
18
ORDERING INFORMATION
Part Number SP3222EHCA SP3222EHCA/TR SP3222EHEA SP3222EHEA/TR SP3222EHCP SP3222EHEP SP3222EHCT SP3222EHCT/TR SP3222EHET SP3222EHET/TR SP3222EHCY SP3222EHCY/TR SP3222EHEY SP3222EHEY/TR SP3232EHCA SP3232EHCA/TR SP3232EHEA SP3232EHEA/TR SP3232EHCP SP3232EHEP SP3232EHCT SP3232EHCT/TR SP3232EHET SP3232EHET/TR SP3232EHCY SP3232EHCY/TR SP3232EHEY SP3232EHEY/TR
Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Active Active Active Active Active Active Active Active Active Active Active Active Active Active
Temperature Range 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C
Package Type 20-Pin SSOP 20-Pin SSOP 20-Pin SSOP 20-Pin SSOP 18-Pin PDIP 18-Pin PDIP 18-Pin WSOIC 18-Pin WSOIC 18-Pin WSOIC 18-Pin WSOIC 20-Pin TSSOP 20-Pin TSSOP 20-Pin TSSOP 20-Pin TSSOP 16-Pin SSOP 16-Pin SSOP 16-Pin SSOP 16-Pin SSOP 16-Pin PDIP 16-Pin PDIP 16-Pin WSOIC 16-Pin WSOIC 16-Pin WSOIC 16-Pin WSOIC 16-Pin TSSOP 16-Pin TSSOP 16-Pin TSSOP 16-Pin TSSOP
Available in lead free packaging. To order add "-L" suffix to part number. Example: SP3232EHEY/TR = standard; SP3232EHEY-L/TR = lead free. /TR = Tape and Reel. Pack quantity is 1,500 for WSOIC, SSOP and 20-pin TSSOP; pack quantity for 16-pin TSSOP is 2,500.
Sipex Corporation
Corporation
Solved by Sipex
TM
Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others. Date: 1/18/06 SP3222EH/3232EH 3.3V, 460 Kbps RS-232 Transceivers (c) Copyright 2006 Sipex Corporation
19

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