m74hc238 STMicroelectronics, m74hc238 Datasheet

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m74hc238

Manufacturer Part Number
m74hc238
Description
3 To 8 Line Decoder
Manufacturer
STMicroelectronics
Datasheet

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M74HC238
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m74hc238B
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m74hc238B1
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m74hc238B1F
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m74hc238B1R
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m74hc238M1R
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m74hc238RM13TR
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m74hc238RM13TR
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DESCRIPTION
The M74HC238 is an high speed CMOS 3 TO 8
LINE DECODER fabricated with silicon gate
C
If the device is enabled, 3 binary select inputs (A,
B and C) determine which one of outputs will go
high. When enable input G1 is held "Low" or either
G2A or G2B is held "High" decoding function is
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
2
MOS technology.
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 238
PD
CC
PLH
OH
NIH
CC
= 15ns (TYP.) at V
= 4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
NIL
= 4mA (MIN)
= 28 % V
A
CC
CC
=25°C
(MIN.)
= 6V
ORDER CODES
inhibited and all the 8 outputs go low. Three
enable inputs are provided to ease cascade
connection and application of this address
decoder in memory systems.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
DIP
3 TO 8 LINE DECODER
M74HC238M1R
M74HC238B1R
TUBE
SOP
M74HC238
M74HC238RM13TR
M74HC238TTR
T & R
TSSOP
1/10

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m74hc238 Summary of contents

Page 1

... WIDE OPERATING VOLTAGE RANGE: V (OPR PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 238 DESCRIPTION The M74HC238 is an high speed CMOS LINE DECODER fabricated with silicon gate 2 C MOS technology. If the device is enabled, 3 binary select inputs (A, B and C) determine which one of outputs will go high. When enable input G1 is held " ...

Page 2

... M74HC238 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS ENABLE SELECT G2B G2A Don’ ...

Page 3

... Supply Voltage CC V Input Voltage I V Output Voltage O T Operating Temperature op Input Rise and Fall Time Parameter Parameter 6.0V CC M74HC238 Value Unit - 500(*) mW -65 to +150 °C 300 °C ...

Page 4

... M74HC238 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 AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH ...

Page 5

... pulse generator (typically OUT Test Conditions (V) Min. 5.0 5.0 Value = 25°C -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min CC(opr M74HC238 Unit Max 5/10 ...

Page 6

... M74HC238 WAVEFORM 1: PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle) 6/10 ...

Page 7

... Plastic DIP-16 (0.25) MECHANICAL DATA mm. DIM. MIN. a1 0. 17. TYP MAX. MIN. 0.020 1.65 0.030 0.5 0.25 20 8.5 2.54 7.1 5.1 3.3 1.27 M74HC238 inch TYP. MAX. 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 P001C 7/10 ...

Page 8

... M74HC238 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 45° (typ.) 10 6.2 1.27 8.89 4.0 5.3 1.27 0.62 8° (max.) inch MIN. TYP. MAX. 0.068 0.003 0.007 0.064 0.013 0.018 0.007 0.010 0.019 0.385 0.393 0.228 0.244 0.050 0.350 0.149 0.157 ...

Page 9

... PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.2 0.15 1 1.05 0.30 0.20 5 5.1 6.4 6.6 4.4 4.48 0.65 BSC 8° 0.60 0. M74HC238 inch MIN. TYP. MAX. 0.047 0.002 0.004 0.006 0.031 0.039 0.041 0.007 0.012 0.004 0.0089 0.193 0.197 0.201 0.244 0.252 0.260 0.169 0.173 0.176 0.0256 BSC 0° 0.018 0.024 ...

Page 10

... M74HC238 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 use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...

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