74LVQ138 STMICROELECTRONICS [STMicroelectronics], 74LVQ138 Datasheet

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74LVQ138

Manufacturer Part Number
74LVQ138
Description
3 TO 8 LINE DECODER INVERTING
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet

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Part Number:
74LVQ138
Manufacturer:
ST
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Part Number:
74LVQ138M
Manufacturer:
ST
0
DESCRIPTION
The LVQ138 is a low voltage CMOS 3 TO 8 LINE
DECODER
sub-micron silicon gate and double-layer metal
wiring C
It is ideal for low power and low noise 3.3V
applications.
PIN CONNECTION AND IEC LOGIC SYMBOLS
February 1999
HIGH SPEED: t
COMPATIBLE WITH TTL OUTPUT
LOW POWER DISSIPATION:
I
LOW NOISE:
V
75 TRANSMISSION LINE DRIVING
CAPABILITY
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 138
IMPROVED LATCH-UP IMMUNITY
CC
PLH
OH
OLP
CC
= 4 A (MAX.) at T
| = I
(OPR) = 2V to 3.6V (1.2V Data Retention)
= 0.2 V (TYP.) at V
2
t
MOS technology.
PHL
OL
= 12 mA (MIN)
(INVERTING)
PD
= 5.5 ns (TYP.) at V
A
= 25
CC
= 3.3V
o
C
fabricated
3 TO 8 LINE DECODER (INVERTING)
CC
= 3.3V
with
If the device is enabled, 3 binary select inputs (A,
B and C) determine which one of the outputs will
go low. If enable input G1 is held low or either
G2A or G2B is held high, the decoding function is
inhibited and all the 8 outputs go high.
Three enable inputs are provided to ease
cascade connection and application of address
decoders for memory systems.
It has better speed performance at 3.3V than 5V
LSTTL family combinad 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.
(Micro Package)
74LVQ138M
M1
ORDER CODES :
74LVQ138
(TSSOP Package)
74LVQ138T
T
1/9

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74LVQ138 Summary of contents

Page 1

... It has better speed performance at 3.3V than 5V LSTTL family combinad with the true CMOS low power consumption. with All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. 74LVQ138 T (TSSOP Package) 74LVQ138T 1/9 ...

Page 2

... INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUT S ENABL E SELECT G2B G2A ...

Page 3

... CC V Input Voltage I V Output Voltage O T Operating Temperature: op dt/dv Input Rise and Fall Time (V 1) Truth Table guaranteed: 1. from 0. 3V) (note 2) CC 74LVQ138 Value Unit - 200 mA o -65 to +150 ...

Page 4

... DC SPECIFICATIONS Symb ol Parameter V High Level Input Voltage 3 Low Level Input Voltage IL V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage Current I I Quiescent Supply CC Current I Dynamic Output Current OLD (note OHD 1) Maximum test duration 2ms, one output loaded attime 2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50 ...

Page 5

... (V) Min. T yp. 2.7 (*) 3.3 2.7 (*) 3.3 2.7 (*) 3.3 2.7 (*) 3 PLHn OSHL PHLm pHLn Test Co nditions (V) Min. T yp. 3.3 3 MHz IN (opr 74LVQ138 = Valu - Max. Min. Max. 7.0 17.0 20.0 ns 5.5 12.0 14.0 7.0 17.0 20.0 ns 5.5 12.0 14.0 7.0 17.0 20.0 ns 5.5 12.0 14.0 0.5 1.5 1.5 ns 0.5 1.5 1.5 Valu - Max ...

Page 6

... WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING OUTPUTS (f=1MHz; duty cycle 50%) WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING OUTPUTS (f=1MHz; duty cycle 50%) 6/9 ...

Page 7

... MIN. TYP 0 0.35 b1 0. 9.8 E 5.8 e 1.27 e3 8.89 F 3.8 G 4 inch MAX. MIN. TYP. 1.75 0.2 0.004 1.65 0.46 0.013 0.25 0.007 0.019 45 (typ.) 10 0.385 6.2 0.228 0.050 0.350 4.0 0.149 5.3 0.181 1.27 0.019 0.62 8 (max.) 74LVQ138 MAX. 0.068 0.007 0.064 0.018 0.010 0.393 0.244 0.157 0.208 0.050 0.024 P013H 7/9 ...

Page 8

... TSSOP16 MECHANICAL DATA DIM. MIN. TYP 0.05 0.10 A2 0.85 b 0.19 c 0.09 D 4.9 E 6.25 E1 4.3 e 0.65 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 0.30 0.0075 0.20 0.0035 5 5.1 0.193 6.4 6.5 0.246 4.4 4.48 0.169 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 . 74LVQ138 9/9 ...

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