74lcx16374a STMicroelectronics, 74lcx16374a Datasheet

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74lcx16374a

Manufacturer Part Number
74lcx16374a
Description
Voltage 16-bit D-type Flip Flop 3-state With Tolerant Inputs Outputs
Manufacturer
STMicroelectronics
Datasheet
DESCRIPTION
The LCX16374A is a low voltage CMOS 16-BIT
D-TYPE FLIP FLOP with 3 STATE OUTPUT
NON INVERTING fabricated with sub-micron
silicon gate and double-layer metal wiring C
technology. It is ideal for low power and high
speed applications; it can be interfaced to 5V
signal environment for both inputs and outputs.
These 16 bit D-Type flip-flops are controlled by
two clock inputs (nCK) and two output enable
inputs (nOE).
On the positive transition of the (nCK), the nQ
outputs will be set to the logic state that were
setup at the nD inputs.
While the (nOE) input is low, the 8 outputs (nQ)
will be in a normal state (high or low logic level)
and while high level the outputs will be in a high
impedance state.
Any output control does not affect the internal
operation of flip flops; that is, the old data can be
retained or the new data can be entered even
while the outputs are off.
It has better speed performance at 3.3V than 5V
LSTTL family combined with the true CMOS low
power consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
February 1999
5V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED:
f
POWER-DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
PCI BUS LEVELS GUARANTEED AT 24mA
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16374
LATCH-UP PERFORMANCE EXCEEDS 500mA
ESD PERFORMANCE:
MAX
PLH
HBM >2000V; MM > 200V
OH
CC
| = I
LOW VOLTAGE 16-BIT D-TYPE FLIP FLOP (3-STATE)
(OPR) = 2.0V to 3.6V (1.5V Data Retention)
= 170 MHz (MIN.) at V
t
PHL
OL
= 24 mA (MIN)
WITH 5V TOLERANT INPUTS AND OUTPUTS
CC
= 3V
2
MOS
PIN CONNECTION
(TSSOP48 Package)
ORDER CODES :
74LCX16374AT
74LCX16374A
T
1/9

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74lcx16374a Summary of contents

Page 1

... LSTTL family combined with the true CMOS low power consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. February 1999 74LCX16374A T (TSSOP48 Package) ORDER CODES : 74LCX16374AT PIN CONNECTION 2 MOS 1/9 ...

Page 2

... INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCT ION 1 1OE 3 State Output Enable Input (Active LOW 1Q0 to 1Q7 3 State Outputs 8, 9, 11, 12 13, 14, 16, 17, 2Q0 to 2Q7 3 State Outputs 19, 20, 22 2OE 3 State Output Enable ...

Page 3

... Input Transition Rise or Fall Rate (V 1) Truth Table guaranteed: 1.5V to3. from0.8V to 2.0V IN Value -0 7.0 -0 7.0 -0 7.0 -0 100 -65 to +150 300 Value 2 3.0 to 3.6V 2.7 to 3.0V -40 to+85 = 3.0V) (note 74LCX16374A Unit 0 Unit ns/V 3/9 ...

Page 4

... DC SPECIFICATIONS Symb ol Parameter V High Level Input Voltage IH V Low Level Input Voltage IL V High Level Output Voltage OH V Low Level Output Voltage OL I Input Leakage Current State Output Leakage Current OZ I Power Off Leakage Current off I Quiescent Supply Current ...

Page 5

... PLHn OSHL PHLm pHLn Test Co nditi ons V CC ( 10MHz (opr /16 (per circuit 74LCX16374A = t = 2.5 ns Value - Min. Max. 1.5 8 1.5 7.0 1.5 8 1.5 7.2 1.5 8 1.5 7.2 2 2.5 1 1.5 4 ...

Page 6

... TEST CIRCUIT T EST PLH PHL PZL PLZ PZH PHZ equivalent (includes jigand probe capacitance 500 orequivalent pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cicle) 6 ...

Page 7

... WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIMES (f=1MHz; 50% duty cicle) WAVEFORM 3: PULSE WIDTH 74LCX16374A 7/9 ...

Page 8

... TSSOP48 MECHANICAL DATA DIM. MIN. TYP 0.05 0.10 A2 0.85 b 0.17 c 0.09 D 12.4 12.5 E 7.95 E1 6.0 e 0.5 BSC 0.50 0. PIN 1 IDENTIFICATION 1 8/9 mm MAX. MIN. 1.1 0.15 0.002 0.9 0.95 0.335 0.27 0.0067 0.20 0.0035 12.6 0.408 8.1 8.25 0.313 6.1 6.2 0.236 0.70 0.020 inch TYP. MAX. 0.433 0.004 0.006 0.354 ...

Page 9

... The ST logo is a trademark of STMicroelectronics 1999 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com . 74LCX16374A 9/9 ...

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