參數(shù)資料
型號: M74HCT138
廠商: 意法半導(dǎo)體
英文描述: 3 TO 8 LINE DECODER INVERTING
中文描述: 3至8線譯碼器反相
文件頁數(shù): 1/10頁
文件大?。?/td> 242K
代理商: M74HCT138
M54HCT138
M74HCT138
February 1993
3 TO 8 LINE DECODER (INVERTING)
B1R
(Plastic Package)
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
INPUT AND OUTPUT EQUIVALENT CIRCUIT
ORDER CODES :
M54HCT138F1R
M74HCT138B1R
M74HCT138M1R
M74HCT138C1R
DESCRIPTION
The M54/74HC138 is a highspeed CMOS 3 TO 8
LINE DECODER fabricated in silicon gate C
2
MOS
technology. It has the same high speed perform-
anceofLSTTL combinedwithtrue CMOSlowpower
consumption. If the device is enabled, 3 binaryse-
lect inputs (A, Band C) determine whichone of the
outputs will go low.If enable input G1 is held lowor
eitherG2A or G2B is held high, the decoding func-
tion is inhibited and all the8 outputs go high. Three
enableinputsare provided toease cascadeconnec-
tion and application of address decoders for mem-
ory systems.All inputs are equipped with protection
circuits against static discharge and tran- sient ex-
cess voltage.This integrated circuit has input and
output characteristics that are fully compatible with
54/74 LSTTL logic families. M54/74HCT devices
are designed to directly interface HSC
2
MOS sys-
tems with TTL and NMOS components. They are
also plugin replacements for LSTTL devices giving
a reduction of power consumption.
.
HIGH SPEED
t
PD
= 16 ns(TYP.) at V
CC
= 5 V
.
LOWPOWER DISSIPATION
I
CC
= 4
μ
AAT T
A
= 25
°
C
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
SYMMETRICAL OUTPUT IMPEDANCE
|I
OH
| = I
OL
.
COMPATIBLE WITHTTL OUTPUTS
V
IH
= 2V (MIN.) V
IL
= 0.8V (MAX)
.
PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS138
1/10
相關(guān)PDF資料
PDF描述
M74HCT138B1R 3 TO 8 LINE DECODER INVERTING
M74HCT138M1R 3 TO 8 LINE DECODER INVERTING
M74HCT138RM13TR 3 TO 8 LINE DECODER (INVERTING)
M74HCT138TTR 3 TO 8 LINE DECODER (INVERTING)
M74HCT138C1R 1.0UF/100VDC METAL POLY CAP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M74HCT138B1 制造商:STMicroelectronics 功能描述:
M74HCT138B1R 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-to-8 Line Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
M74HCT138B1R 制造商:STMicroelectronics 功能描述:74HCT CMOS 74HCT138 DIP16 5.5V
M74HCT138M1R 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-to-8 Line Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
M74HCT138RM13TR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-to-8 Line Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray