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ISL4485E
Data Sheet April 21, 2005 FN6049.3
15kV ESD Protected, 20Mbps, 5V, Low
Power, RS-485/RS-422 Transceiver
The Intersil ISL4485E is a high speed, BiCMOS 5V powered, single transceiver that meets both the RS-485 and RS-422 standards for balanced communication. Each driver output/receiver input is protected against 15kV ESD strikes, without latch-up. Unlike competitive devices, this Intersil device is specified for 10% tolerance supplies (4.5V to 5.5V). The excellent differential output voltage coupled with high drive-current output stages allow 20Mbps operation over twisted pair networks up to 450 feet in length. The 25k receiver input resistance presents a "single unit load" to the RS-485 bus, allowing up to 32 transceivers on the network. Receiver (Rx) inputs feature a "fail-safe if open" design, which ensures a logic high Rx output if Rx inputs are floating. Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive. The half duplex configuration multiplexes the Rx inputs and Tx outputs to allow transceivers with Rx and Tx disable functions in 8 lead packages.
Features
* Pb-Free Available (RoHS Compliant) * High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 20Mbps * RS-485 I/O Pin ESD Protection . . . . . . . . . . 15kV HBM - Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM * Operates from a Single +5V Supply (10% Tolerance) * 1 Unit Load Allows up to 32 Devices on the Bus * Low Quiescent Current . . . . . . . . . . . . . . . . . . . . . 700A * -7V to +12V Common Mode Input Voltage Range * Three State Rx and Tx Outputs * 30ns Propagation Delays, 2ns Skew * Current Limiting and Thermal Shutdown for driver Overload Protection
Applications
* SCSI "Fast 20" Drivers and Receivers * Data Loggers * Security Networks * Building Environmental Control Systems * Industrial/Process Control Networks * Level Translators
Ordering Information
PART NO. (BRAND) ISL4485EIB (4485EIB) ISL4485EIBZ (4485EIBZ) (See Note) ISL4485EIB-T (4485EIB) ISL4485EIBZ-T (4485EIBZ) (See Note) TEMP. RANGE (oC) -40 to 85 -40 to 85 PACKAGE 8 Ld SOIC 8 Ld SOIC (Pb-free) 8 Ld SOIC Tape & Reel 8 Ld SOIC Tape & Reel (Pb-free) PKG. DWG. # M8.15 M8.15
Pinout
ISL4485E (SOIC) TOP VIEW
RO 1 RE 2 DE 3 8 7 6 D 5 VCC B/Z A/Y GND
R
-40 to 85 -40 to 85
M8.15 M8.15
DI 4
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2004, 2005. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
ISL4485E Truth Tables
TRANSMITTING INPUTS RE X X X DE 1 1 0 DI 1 0 X OUTPUTS B/Z 0 1 High-Z A/Y 1 0 High-Z RE 0 0 0 1 INPUTS DE 0 0 0 X A-B +0.2V -0.2V Inputs Open X RECEIVING OUTPUT RO 1 0 1 High-Z
Pin Descriptions
PIN RO RE DE DI GND A/Y FUNCTION Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating). Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high. Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low. Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low. Ground connection. 15kV HBM ESD Protected, noninverting receiver input and noninverting driver output. Pin is an input (A) if DE = 0; pin is an output (Y) if DE = 1. 15kV HBM ESD Protected, inverting receiver input and inverting driver output. Pin is an input (B) if DE = 0; pin is an output (Z) if DE = 1. System power supply input (4.5V to 5.5V).
B/Z
VCC
Typical Operating Circuit
ISL4485E
+5V + 8 VCC 1 RO 2 RE 3 DE 4 DI R B/Z A/Y 7 6 RT RT 7 6 B/Z A/Y 0.1F 0.1F + 8 VCC D DI 4 DE 3 RE 2 R GND 5 GND 5 RO 1 +5V
D
2
ISL4485E
Absolute Maximum Ratings
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Input Voltages DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V) Input / Output Voltages A / Y, B / Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +12.5V RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V) Short Circuit Duration Y, Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Thermal Information
Thermal Resistance (Typical, Note 1)
JA (oC/W)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . 170 Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC (Lead Tips Only)
Operating Conditions
Temperature Range ISL4485EIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE: 1. JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = 25oC, Note 2 SYMBOL TEST CONDITIONS TEMP (oC) MIN TYP MAX UNITS
PARAMETER DC CHARACTERISTICS Driver Differential VOUT (no load) Driver Differential VOUT (with load)
VOD1 VOD2 VOD R = 50 (RS-422), (Figure 1) R = 27 (RS-485), (Figure 1)
Full Full Full Full
2 1.5 -
3 2.3 0.01
VCC 5 0.2
V V V V
Change in Magnitude of Driver Differential VOUT for Complementary Output States Driver Common-Mode VOUT Change in Magnitude of Driver Common-Mode VOUT for Complementary Output States Logic Input High Voltage Logic Input Low Voltage Logic Input Current Input Current (A, B), (Note 5)
R = 27 or 50, (Figure 1)
VOC VOC
R = 27 or 50, (Figure 1) R = 27 or 50, (Figure 1)
Full Full
-
0.01
3 0.2
V V
VIH VIL IIN1 IIN2
DE, DI, RE DE, DI, RE DE, DI, RE DE = 0V, VCC = 0V or 4.5 to 5.5V -7V VCM 12V VCM = 0V IO = -4mA, VID = 200mV IO = -4mA, VID = 200mV 0.4V VO 2.4V -7V VCM 12V DI, RE = 0V or VCC DE = VCC DE = 0V VIN = 12V VIN = -7V
Full Full Full Full Full Full 25 Full Full Full Full Full Full Full Full
2 -25 -0.2 3.5 12 35 7
70 4 0.1 25 700 500 -
0.8 25 1 -0.8 0.2 0.4 1 900 565 250 85
V V A mA mA V mV V V A k A A mA mA
Receiver Differential Threshold Voltage Receiver Input Hysteresis Receiver Output High Voltage Receiver Output Low Voltage Three-State (high impedance) Receiver Output Current Receiver Input Resistance No-Load Supply Current, (Note 3)
VTH VTH VOH VOL IOZR RIN ICC
Driver Short-Circuit Current, VO = High or Low Receiver Short-Circuit Current
IOSD1 IOSR
DE = VCC, -7V VY or VZ 12V, (Note 4) 0V VO VCC
3
ISL4485E
Electrical Specifications
Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = 25oC, Note 2 (Continued) SYMBOL TEST CONDITIONS TEMP (oC) MIN TYP MAX UNITS
PARAMETER SWITCHING CHARACTERISTICS Driver Input to Output Delay Driver Output Skew Driver Differential Rise or Fall Time Driver Enable to Output High Driver Enable to Output Low Driver Disable from Output High Driver Disable from Output Low Driver Maximum Data Rate Receiver Input to Output Delay Receiver Skew | tPLH - tPHL | Receiver Enable to Output High Receiver Enable to Output Low Receiver Disable from Output High Receiver Disable from Output Low Receiver Maximum Data Rate ESD PERFORMANCE RS-485 Pins (A/Y, B/Z) All Other Pins NOTE:
tPLH, tPHL RDIFF = 54, CL = 100pF, (Figure 2) tSKEW tR, tF tZH tZL tHZ tLZ fMAXD RDIFF = 54, CL = 100pF, (Figure 2) RDIFF = 54, CL = 100pF, (Figure 2) CL = 100pF, SW = GND, (Figure 3) CL = 100pF, SW = VCC, (Figure 3) CL = 15pF, SW = GND, (Figure 3) CL = 15pF, SW = VCC, (Figure 3) VOD 1.5V , (Figure 4, Note 6)
Full Full Full Full Full Full Full Full Full Full Full Full Full Full Full
15 3 20 20 20
30 1.3 11 17 14 19 13 40 3 9 9 9 9 -
50 5 25 30 30 30 30 70 10 25 25 25 25 -
ns ns ns ns ns ns ns Mbps ns ns ns ns ns ns Mbps
tPLH, tPHL Figure 5 tSKD tZH tZL tHZ tLZ fMAXR Figure 5 CL = 15pF, SW = GND, (Figure 6) CL = 15pF, SW = VCC, (Figure 6) CL = 15pF, SW = GND, (Figure 6) CL = 15pF, SW = VCC, (Figure 6) CL = 15pF, VID 1.5V (Note 6)
Human Body Model
25 25
-
15 >7
-
kV kV
2. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. 3. Supply current specification is valid for loaded drivers when DE = 0V. 4. Applies to peak current. See "Typical Performance Curves" for more information. 5. Devices meeting these limits are denoted as "single unit load (1 UL)" transceivers. The RS-485 standard allows up to 32 Unit Loads on the bus. 6. Guaranteed by characterization, but not tested.
Test Circuits and Waveforms
R VCC DE DI D Y R VOC Z VOD
FIGURE 1. DRIVER VOD AND VOC
4
ISL4485E Test Circuits and Waveforms (Continued)
3V DI 1.5V 1.5V 0V tPLH CL = 100pF Z D Y SIGNAL GENERATOR RDIFF CL = 100pF OUT (Z) 50% 50% VOL tPHL tPLH VOH 50% tPHL VOH VCC DE DI OUT (Y) 50% VOL
DIFF OUT (Y - Z) tR
90% 10%
90% 10% tF
+VOD -VOD
SKEW = |CROSSING PT. OF Y & Z - CROSSING PT. OF Y & Z|
FIGURE 2A. TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
DE DI D SIGNAL GENERATOR Y CL OUT (Y, Z) SW Z 500 DE VCC GND tZH OUTPUT HIGH 1.5V 1.5V
3V 0V tHZ VOH - 0.5V 2.3V 0V VOH
PARAMETER OUTPUT tHZ tLZ tZH tZL Y/Z Y/Z Y/Z Y/Z
RE X X X X
DI 1/0 0/1 1/0 0/1
SW GND VCC GND VCC
CL (pF) 15 15 100 100
OUT (Y, Z)
tZL
tLZ VCC 2.3V OUTPUT LOW VOL + 0.5V V OL
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. DRIVER ENABLE AND DISABLE TIMES
5
ISL4485E Test Circuits and Waveforms (Continued)
3V DI VCC DE
+
0V Z D Y 60 CD = 200pF VOD
-
DI
DIFF OUT (Y - Z) -VOD
+VOD
0V
SIGNAL GENERATOR
FIGURE 4A. TEST CIRCUIT FIGURE 4. DRIVER DATA RATE
FIGURE 4B. MEASUREMENT POINTS
RE +1.5V B A R 15pF RO tPLH SIGNAL GENERATOR 50% tPHL A 1.5V 1.5V
3V 0V
VCC RO 50% 0V
FIGURE 5A. TEST CIRCUIT
FIGURE 5B. MEASUREMENT POINTS
FIGURE 5. RECEIVER PROPAGATION DELAY
RE B R SIGNAL GENERATOR A 15pF RO 1k SW 3V VCC GND tZH OUTPUT HIGH VOH - 0.5V RO 1.5V 0V tZL RO tLZ VCC 1.5V OUTPUT LOW VOL + 0.5V V OL tHZ VOH RE 1.5V 1.5V 0V
PARAMETER tHZ tLZ tZH tZL
DE 0 0 0 0
A +1.5V -1.5V +1.5V -1.5V
SW GND VCC GND VCC
FIGURE 6A. TEST CIRCUIT
FIGURE 6B. MEASUREMENT POINTS
FIGURE 6. RECEIVER ENABLE AND DISABLE TIMES
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ISL4485E Application Information
RS-485 and RS-422 are differential (balanced) data transmission standards for use in long haul or noisy environments. RS-422 is a subset of RS-485, so RS-485 transceivers are also RS-422 compliant. RS-422 is a pointto-multipoint (multidrop) standard, which allows only one driver and up to 10 (assuming one unit load devices) receivers on each bus. RS-485 is a true multipoint standard, which allows up to 32 one unit load devices (any combination of drivers and receivers) on each bus. To allow for multipoint operation, the RS-485 spec requires that drivers must handle bus contention without sustaining any damage. Another important advantage of RS-485 is the extended common mode range (CMR), which specifies that the driver outputs and receiver inputs withstand signals that range from +12V to -7V. RS-422 and RS-485 are intended for runs as long as 4000', so the wide CMR is necessary to handle ground potential differences, as well as voltages induced in the cable by external fields. signals, which are effectively rejected by the differential receivers in these ICs. RS-485/422 are intended for network lengths up to 4000', but the maximum transmission length decreases as the data rate increases. According to guidelines in the RS-422 specification, a 20Mbps network should be limited to less than 50' of 24 AWG twisted pair. Nevertheless, the ISL4485E's large differential voltage swing, fast transition times, and high drive-current output stages allow operation at 20Mbps in RS-485/422 networks as long as 450'. Figure 7 details ISL4485E operation at 20Mbps driving 300' of CAT 5 cable terminated in 120 at the driver and the receiver (i.e., double terminated). The acceptance criteria for this test was the ability of the driver to deliver a 1.5V differential signal to the receiver at the end of the cable (i.e., |A-B| 1.5V). If a more liberal acceptance criteria is used, the distance can be further extended. For example, Figure 8 illustrates the performance in the same configuration, but with a cable length of 450', and an acceptance criteria of no more than 6dB attenuation across the cable (i.e., |A-B| = |Y-Z|/2). Driver differential output voltage decreases with increasing differential load capacitance, so maintaining a 1.5V differential output requires a data rate reduction, as shown in Figure 9. To minimize reflections, proper termination is imperative when using this 20Mbps device. In point-to-point, or point-tomultipoint (single driver on bus) networks, the main cable should be terminated in its characteristic impedance (typically 120) at the end farthest from the driver. In multireceiver applications, stubs connecting receivers to the main cable should be kept as short as possible (preferably less than 12 inches). Multipoint (multi-driver) systems require that the main cable be terminated in its characteristic impedance at both ends. Again, stubs connecting a transceiver to the main cable should be kept as short as possible.
Receiver Features
The ISL4485E utilizes a differential input receiver for maximum noise immunity and common mode rejection. Input sensitivity is 200mV, as required by the RS-422 and RS-485 specifications. Receiver input impedance surpasses the RS-422 spec of 4k, and meets the RS-485 "Unit Load" requirement of 12k minimum. Receiver inputs function with common mode voltages as great as 7V outside the power supplies (i.e., +12V and -7V), making them ideal for long networks where induced voltages are a realistic concern. The receiver includes a "fail-safe if open" function that guarantees a high level receiver output if the receiver inputs are unconnected (floating). The output is three-statable via the active low RE input, and the receiver easily meets the 20Mbps data rate.
Built-In Driver Overload Protection
As stated previously, the RS-485 spec requires that drivers survive worst case bus contentions undamaged. The ISL4485E device meets this requirement via driver output short circuit current limits, and on-chip thermal shutdown circuitry. The driver output stages incorporate short circuit current limiting circuitry which ensures that the output current never exceeds the RS-485 spec, even at the common mode voltage range extremes. Additionally, these devices utilize a foldback circuit which reduces the short circuit current, and thus the power dissipation, whenever the contending voltage exceeds either supply. In the event of a major short circuit condition, this device also includes a thermal shutdown feature that disables the drivers whenever the die temperature becomes excessive. This eliminates the power dissipation, allowing the die to cool. The drivers automatically reenable after the die
Driver Features
The RS-485/422 driver is a differential output device that delivers at least 1.5V across a 54 load (RS-485), and at least 2V across a 100 load (RS-422). The ISL4485E driver features low propagation delay skew to maximize bit width, and to minimize EMI, and the outputs are three-statable via the active high DE input. Outputs of ISL4485E drivers are not slew rate limited, so faster output transition times allow data rates up to 20Mbps.
Data Rate, Cables, and Terminations
Twisted pair is the cable of choice for RS-485/422 networks. Twisted pair cables tend to pick up noise and other electromagnetically induced voltages as common mode
7
ISL4485E
temperature drops about 15 degrees. If the contention persists, the thermal shutdown / reenable cycle repeats until the fault is cleared. Receivers stay operational during thermal shutdown. mechanism to activate, and without degrading the RS-485 common mode range of -7V to +12V. This built-in ESD protection eliminates the need for board level protection structures (e.g., transient suppression diodes), and the associated, undesirable capacitive load they present.
ESD Protection
All pins on these interface devices include class 3 Human Body Model (HBM) ESD protection structures, but the RS-485 pins (driver outputs and receiver inputs) incorporate advanced structures allowing them to survive ESD events in excess of 15kV HBM. The RS-485 pins are particularly vulnerable to ESD damage because they typically connect to an exposed port on the exterior of the finished product. Simply touching the port pins, or connecting a cable, can cause an ESD event that might destroy unprotected ICs. These new ESD structures protect the device whether or not it is powered up, protect without allowing any latchup
Human Body Model Testing
As the name implies, this test method emulates the ESD event delivered to an IC during human handling. The tester delivers the charge stored on a 100pF capacitor through a 1.5k current limiting resistor into the pin under test. The HBM method determines an ICs ability to withstand the ESD events typically present during handling and manufacturing. The RS-485 pin survivability on this high ESD device has been characterized to be in excess of 15kV, for discharges to GND.
Typical Performance Curves
RECEIVER OUTPUT (V) DI
VCC = 5V, TA = 25oC; Unless Otherwise Specified
DRIVER INPUT (V) RECEIVER OUTPUT (V) DI DRIVER INPUT (V)
5 0
5 0
5 0 RO
5 0 RO
RECEIVER INPUT (V)
3 1.5 0 A-B -1.5 -3 TIME (20ns/DIV)
RECEIVER INPUT (V)
DRIVER+CABLE DELAY
(~450ns)
DRIVER+CABLE DELAY 3 1.5 0 A-B -1.5 -3
(~650ns)
TIME (20ns/DIV)
FIGURE 7. DRIVER AND RECEIVER WAVEFORMS DRIVING 300 FEET OF CABLE (DOUBLE TERMINATED)
FIGURE 8. DRIVER AND RECEIVER WAVEFORMS DRIVING 450 FEET OF CABLE (DOUBLE TERMINATED)
30 RDIFF = 54 25 DATA RATE (Mbps)
750 700 DE = VCC, RE = X 650
20 ICC (A) 600 550 500 DE = GND, RE = X 5 450 400 -40
15
10
0 500 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 DIFFERENTIAL CAPACITANCE (pF)
-25
0
25
50
75
85
TEMPERATURE (oC)
FIGURE 9. DATA RATE vs DIFFERENTIAL CAPACITANCE
FIGURE 10. SUPPLY CURRENT vs TEMPERATURE
8
ISL4485E Typical Performance Curves
90 DIFFERENTIAL OUTPUT VOLTAGE (V) 80 DRIVER OUTPUT CURRENT (mA) 70 60 50 40 30 20 10 0 0 1 2 3 4 5
VCC = 5V, TA = 25oC; Unless Otherwise Specified (Continued)
3.6 3.4 3.2 3 2.8 2.6 2.4 2.2 2 -40 RDIFF = 54 RDIFF = 100
-25
0
25
50
75
85
DIFFERENTIAL OUTPUT VOLTAGE (V)
TEMPERATURE (oC)
FIGURE 11. DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT VOLTAGE
FIGURE 12. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs TEMPERATURE
40
3
PROPAGATION DELAY (ns)
35 tPHLY SKEW (ns) 30 tPHLZ tPLHZ tPLHY 25
2.5 tPHLY - tPLHZ
2
tPLHY - tPHLZ
1.5 CROSSING PT. OF Y & Z - CROSSING PT. OF Y & Z
25 -40
-25
0
25
50
75
85
1 -40
-25
0
25
50
75
85
TEMPERATURE (oC)
TEMPERATURE (oC)
FIGURE 13. DRIVER PROPAGATION DELAY vs TEMPERATURE
FIGURE 14. DRIVER SKEW vs TEMPERATURE
9
ISL4485E Typical Performance Curves
RECEIVER OUTPUT (V)
VCC = 5V, TA = 25oC; Unless Otherwise Specified (Continued)
DRIVER INPUT (V) RECEIVER OUTPUT (V) RDIFF = 54, CL = 100pF 5 DI 0 5 0 DRIVER INPUT (V)
RDIFF = 54, CL = 100pF DI 5 0 5 0 RO
RO
DRIVER OUTPUT (V)
4 3 2 1 0 TIME (10ns/DIV) B/Z
DRIVER OUTPUT (V)
4 3 2 1 0 TIME (10ns/DIV) A/Y B/Z
A/Y
FIGURE 15. DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH
FIGURE 16. DRIVER AND RECEIVER WAVEFORMS, HIGH TO LOW
160 140 120 100 OUTPUT CURRENT (mA) 80 60 40 20 0 -20 -40 -60 Y OR Z = HIGH Y OR Z = LOW
-80 -100 -120 -7 -6 -4 -2 0 2 4 6 OUTPUT VOLTAGE (V) 8 10 12
FIGURE 17. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT VOLTAGE
Die Characteristics
SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 518 PROCESS: Si Gate CMOS
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ISL4485E Small Outline Plastic Packages (SOIC)
N INDEX AREA E -B1 2 3 SEATING PLANE -AD -CA h x 45o H 0.25(0.010) M BM
M8.15 (JEDEC MS-012-AA ISSUE C)
8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE INCHES SYMBOL A
L
MILLIMETERS MIN 1.35 0.10 0.33 0.19 4.80 3.80 MAX 1.75 0.25 0.51 0.25 5.00 4.00 NOTES 9 3 4 5 6 7 8o Rev. 0 12/93
MIN 0.0532 0.0040 0.013 0.0075 0.1890 0.1497
MAX 0.0688 0.0098 0.020 0.0098 0.1968 0.1574
A1 B C D E

A1 0.10(0.004) C
e H h L N
0.050 BSC 0.2284 0.0099 0.016 8 0o 8o 0.2440 0.0196 0.050
1.27 BSC 5.80 0.25 0.40 8 0o 6.20 0.50 1.27
e
B 0.25(0.010) M C AM BS
NOTES: 1. Symbols are defined in the "MO Series Symbol List" in Section 2.2 of Publication Number 95. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. Dimension "E" does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010 inch) per side. 5. The chamfer on the body is optional. If it is not present, a visual index feature must be located within the crosshatched area. 6. "L" is the length of terminal for soldering to a substrate. 7. "N" is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. The lead width "B", as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch). 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 11

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