74AC138M STMICROELECTRONICS [STMicroelectronics], 74AC138M Datasheet

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74AC138M

Manufacturer Part Number
74AC138M
Description
3 TO 8 LINE DECODER INVERTING
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet

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DESCRIPTION
The 74AC138 is an advanced high-speed CMOS
3 TO 8 LINE DECODER (INVERTING) fabricated
with sub-micron silicon gate and double-layer
metal wiring C
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
PIN CONNECTION AND IEC LOGIC SYMBOLS
April 2001
HIGH SPEED: t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
50 TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 138
IMPROVED LATCH-UP IMMUNITY
CC
PLH
OH
NIH
CC
= 4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
NIL
= 24mA (MIN)
2
= 28 % V
MOS tecnology.
PD
= 4.5ns (TYP.) at V
A
CC
=25°C
(MIN.)
3 TO 8 LINE DECODER (INVERTING)
CC
= 5V
ORDER CODES
or G2B is held high, the decoding function is
inhibited and all the 8 outputs go to high.
Tree enable inputs are provided to ease cascade
connection and application of address decoders
for memory systems.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
DIP
74AC138M
74AC138B
TUBE
SOP
74AC138
74AC138MTR
74AC138TTR
TSSOP
T & R
1/10

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74AC138M Summary of contents

Page 1

... Tree enable inputs are provided to ease cascade connection and application of address decoders for memory systems. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. 74AC138 SOP TSSOP TUBE T & R 74AC138B 74AC138M 74AC138MTR 74AC138TTR 1/10 ...

Page 2

INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS ENABLE SELECT G2B G2A ...

Page 3

ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 4

DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current I Quiescent Supply CC Current ...

Page 5

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Propagation Delay 3.3 PLH PHL Time 5 Propagation Delay 3.3 PLH PHL Time 5 Propagation Delay 3.3 PLH PHL ...

Page 6

WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING OUTPUTS (f=1MHz; 50% duty cycle) WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING OUTPUTS (f=1MHz; 50% duty cycle) 6/10 ...

Page 7

Plastic DIP-16 (0.25) MECHANICAL DATA mm DIM. MIN. TYP. a1 0.51 B 0.77 b 0 8.5 e 2.54 e3 17. 3.3 Z inch MAX. MIN. TYP. 0.020 1.65 0.030 0.020 0.010 20 0.335 ...

Page 8

DIM. MIN 0 0. 9 3.8 G 4 8/10 SO-16 MECHANICAL DATA mm TYP. MAX. 1.75 0.2 1.65 0.46 0.25 0.5 ...

Page 9

TSSOP16 MECHANICAL DATA DIM. MIN 0.05 A2 0.85 b 0.19 c 0.09 D 4.9 E 6.25 E1 4.3 e 0.65 BSC 0. PIN 1 IDENTIFICATION 1 mm TYP. MAX. MIN. ...

Page 10

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its ...

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