參數(shù)資料
型號： M74HC238TTR
廠商： 意法半導(dǎo)體
元件分類： 通用總線功能
英文描述： 3 TO 8 LINE DECODER
中文描述： 3至8線譯碼器
封裝： DIP16
文件頁數(shù)： 1/10頁
文件大小： 277K
代理商： M74HC238TTR
1/10
July 2001
I
HIGH SPEED:
t
PD
= 15ns (TYP.) at V
CC
= 6V
LOW POWER DISSIPATION:
I
CC
= 4
μ
A(MAX.) at T
A
=25°C
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 4mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
WIDE OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 238
I
I
I
I
I
I
DESCRIPTION
The M74HC238 is an high speed CMOS 3 TO 8
LINE DECODER fabricated with silicon gate
C
2
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 "Low" or either
G2A or G2B is held "High" decoding function is
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.
M74HC238
3 TO 8 LINE DECODER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
SOP
TSSOP
M74HC238B1R
M74HC238M1R
M74HC238RM13TR
M74HC238TTR
TSSOP
DIP
SOP
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