View IDT74LVCH32373A_338570.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS, 5 VOLT TOLERANT I/O, BUS-HOLD
* Typical tSK(o) (Output Skew) < 250ps * ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 3.3V 0.3V, Normal Range * VCC = 2.7V to 3.6V, Extended Range * CMOS power levels (0.4 W typ. static) * All inputs, outputs, and I/O are 5V tolerant * Supports hot insertion * Available in 96-ball LFBGA package
FEATURES:
DESCRIPTION:
DRIVE FEATURES:
* Balanced Output Drivers: 24mA * Reduced system switching noise
APPLICATIONS:
The LVCH32373A 32-bit transparent D-type latch is built using advanced dual metal CMOS technology. This high-speed, low-power latch is ideal for temporary storage of data. The device can be used for implementing memory address latches, I/O ports, and bus drivers. The Output Enable and Latch Enable controls are organized to operate each device as four 8bit latches, two 16-bit latches, or one 32-bit latch. Flow-through organization of signal pins simplifies layout. All inputs are designed with hysteresis for improved noise margin. All pins of the LVCH32373A can be driven from either 3.3V or 5V devices. This feature allows the use of this device as a translator in a mixed 3.3V/ 5V supply system. The LVCH32373A has been designed with a 24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance. The LVCH32373A has "bus-hold" which retains the inputs' last state whenever the input goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors.
* 5V and 3.3V mixed voltage systems * Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
1OE
A3
3OE
J3
1LE
A4
3LE
J4
D1
A5
D
A2
3D1
J5
D C
J2
C
1Q1
3Q1
TO SEVEN OTHER CHANNELS
T3
TO SEVEN OTHER CHANNELS
2OE
H3
4OE
2LE
H4
4LE
T4
2D1
E5
D
E2
4D1
N5
D C
N2
C
2Q1
4Q1
TO SEVEN OTHER CHANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
TO SEVEN OTHER CHANNELS
INDUSTRIAL TEMPERATURE RANGE
1
(c)2000 Integrated Device Technology, Inc.
JANUARY 2000
DSC-4765/1
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
6 1D2 1D4 1D6 1D8 2D2 2D4 2D6 2D7 3D2 3D4 3D6 3D8 4D2 4D4 4D6 4D7
5
1D1
1D3
1D5
1D7
2D1
2D3
2D5
2D8
3D1
3D3
3D5
3D7
4D1
4D3
4D5
4D8
4
1LE
GND GND
VCC VCC
GND GND
GND GND
VCC VCC
GND GND
2LE
3LE
GND GND
VCC VCC
GND GND
GND GND
VCC VCC
GND
4LE
3 1OE
2OE
3OE
GND
4OE
2
1Q1
1Q3
1Q5
1Q7
2Q1
2Q3
2Q5
2Q8
3Q1
3Q3
3Q5
3Q7
4Q1
4Q3
4Q5
4Q8
1
1Q2 A
1Q4 B
1Q6 C
1Q8 D
2Q2 E
2Q4 F
2Q6 G
2Q7 H
3Q2 J
3Q4 K
3Q6 L
3Q8 M
4Q2 N
4Q4 P
4Q6 R
4Q7 T
LFBGA TOPVIEW
96 BALL LFBGA PACKAGE ATTRIBUTES
1.5 mm Max. 1.4 mm Nom. 1.3 mm Min.
0.8mm
6
5 4 3 2 1 A B C D E F G H J K L M N P R T
TOP VIEW
A 1 2 3
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
5.5mm
4 5 6
13.5mm
2
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max VTERM TSTG IOUT IIK IOK ICC ISS Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI < 0 or VO < 0 Continuous Current through each VCC or GND -0.5 to +6.5 -65 to +150 -50 to +50 -50 100
Unit V C mA mA mA
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT CI/O Parameter(1) Input Capacitance Output Capacitance I/O Port Capacitance Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 4.5 6.5 6.5 Max. 6 8 8 Unit pF pF pF
NOTE: 1. As applicable to the device type.
NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
PIN DESCRIPTION
Pin Names xDx xLE xOE xQx Data Inputs
(1)
FUNCTION TABLE (EACH 8-BIT SECTION)(1)
Description xOE L L H L Inputs xLE H H X L xDx H L X X Outputs xQx H L Z Q(2)
Latch Enable Inputs (Active HIGH) Output Enable Inputs (Active LOW) 3-State Outputs
NOTE: 1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
NOTES: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High Impedance 2. Output level of Q before the indicated steady-state conditions were established.
BUS-HOLD CHARACTERISTICS
Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO
NOTES: 1. Pins with Bus-Hold are identified in the pin description. 2. Typical values are at VCC = 3.3V, +25C ambient.
Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current VCC = 3V VCC = 2.3V VCC = 3.6V
Test Conditions VI = 2V VI = 0.8V VI = 1.7V VI = 0.7V VI = 0 to 3.6V
Min. - 75 75 -- -- --
Typ.(2) -- -- -- -- --
Max. -- -- -- -- 500
Unit A A A
3
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = -40C to +85C
Symbol VIH VIL IIH IIL IOZH IOZL IOFF VIK VH ICCL ICCH ICCZ ICC High Impedance Output Current (3-State Output pins) Input/Output Power Off Leakage Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = 0V, VIN or VO 5.5V VCC = 2.3V, IIN = -18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC -- -- -- -- -- -- -- -0.7 100 -- -- -- 50 -1.2 -- 10 10 500 A V mV A VCC = 3.6V VO = 0 to 5.5V -- -- 10 A Parameter Input HIGH Voltage Level Input LOW Voltage Level Input Leakage Current VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VI = 0 to 5.5V Test Conditions Min. 1.7 2 -- -- -- Typ.(1) -- -- -- -- -- Max. -- -- 0.7 0.8 5 A V Unit V
Quiescent Power Supply Current Variation
3.6 VIN 5.5V(2) One input at VCC - 0.6V, other inputs at VCC or GND
A
NOTES: 1. Typical values are at VCC = 3.3V, +25C ambient. 2. This applies in the disabled state only.
OUTPUT DRIVE CHARACTERISTICS
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.3V VCC = 2.7V VCC = 3V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V IOH = - 24mA IOL = 0.1mA IOL = 6mA IOL = 12mA IOL = 12mA IOL = 24mA Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA IOH = - 6mA IOH = - 12mA Min. VCC - 0.2 2 1.7 2.2 2.4 2.2 -- -- -- -- -- Max. -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 V Unit V
NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C.
4
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OPERATING CHARACTERISTICS, VCC = 3.3V 0.3V, TA = 25C
Symbol CPD CPD Parameter Power Dissipation Capacitance per Latch Outputs enabled Power Dissipation Capacitance per Latch Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical 78 12 Unit pF
SWITCHING CHARACTERISTICS(1)
VCC = 2.7V Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW tSK(o) Parameter Propagation Delay xDx to xQx Propagation Delay xLE to xQx Output Enable Time xOE to xQx Output Disable Time xOE to xQx Set-up Time HIGH or LOW, xDx to xLE Hold Time HIGH or LOW, xDx after xLE xLE Pulse Width HIGH Output Skew(2) 1.7 1.2 3.3 -- -- -- -- -- 1.7 1.2 3.3 -- -- -- -- 500 ns ns ns ps 1.5 6.3 2.5 5.9 ns 1.5 5.7 1.3 4.7 ns 2 5.3 2.1 4.6 ns Min. 1.5 Max. 4.9 VCC = 3.3V 0.3V Min. 1.6 Max. 4.2 Unit ns
NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = - 40C to + 85C. 2. Skew between any two outputs of the same package and switching in the same direction.
5
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
VIH VT 0V VOH VT VOL VIH VT 0V
LVC Link
TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS
Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V VCC(1)= 2.7V 6 2.7 1.5 300 300 50
VCC 500 Pulse (1, 2) Generator VIN D.U.T. RT 500 CL
LVC Link
SAME PHASE INPUT TRANSITION
VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30
Unit V V V mV mV pF
VLOAD Open GND
tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION
tPHL
6 2.7 1.5 300 300 50
tPHL
Propagation Delay
ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VIH VT 0V VLOAD/2 VLZ VOL VOH VHZ 0V
LVC Link
VOUT
Test Circuit for All Outputs
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2ns; tR 2ns.
NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch VLOAD GND Open
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL
tSU
tH
tREM
tSU
tH
VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V
LVC Link
INPUT
tPLH1
tPHL1
VIH VT 0V VOH VT VOL VOH VT VOL
Set-up, Hold, and Release Times
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE VT
LVC Link
VT
OUTPUT 1
tSK (x)
tSK (x)
OUTPUT 2 tPLH2 tPHL2
Pulse Width
LVC Link
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1
Output Skew - tSK(X)
NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
6
IDT74LVCH32373A 3.3V CMOS 32-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT LVC X XX Bus-Hold Temp. Range XX Family XX XXXX Device Type Package
BF
Low-Profile Fine Pitch Ball Grid Array
373A 32-Bit Transparent D-Type Latch with 5V Tolerant I/O 32 H 74 32-bit Bus Density, 24mA Bus-hold -40C to +85C
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
7

▲Up To Search▲

Price & Availability of IDT74LVCH32373A

	To Download IDT74LVCH32373A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .