參數(shù)資料
型號(hào)： MC74ACT256D
廠商： MOTOROLA INC
元件分類： 通用總線功能
英文描述： DUAL 4-BIT ADDRESSABLE LATCH
中文描述： ACT SERIES, LOW LEVEL TRIGGERED D LATCH, TRUE OUTPUT, PDSO16
封裝： 751B-05
文件頁(yè)數(shù)： 2/7頁(yè)
文件大?。?/td> 232K
代理商： MC74ACT256D
MC74AC256 MC74ACT256
5-2
FACT DATA
MODE SELECT-FUNCTION TABLE
Mode
Inputs
Outputs
Operating
MR
E
D
A0
X
A1
X
Q0
L
Q1
L
Q2
L
Q3
L
Master Reset
L
H
X
L
L
L
L
L
L
L
L
d
d
d
d
L
H
L
H
L
L
H
H
Q = d
L
L
L
L
L
L
L
L
L
Demultiplex (Active HIGH
Decoder when D = H)
Q = d
L
L
Q = d
L
Q = d
Store (Do Nothing)
H
H
X
X
X
q0
q1
q1
q2
q2
q2
q3
q3
q3
q3
H
H
H
H
L
L
L
L
d
d
d
d
L
H
L
H
L
L
H
H
Q = d
q0
q0
q0
Addressable
Latch
Q = d
q1
q1
Q = d
q2
Q = d
H = HIGH Voltage Level Steady State
L = LOW Voltage Level Steady State
X = Immaterial
d = HIGH or LOW Data one setup time prior to the LOW-to-HIGH Enable transition
q = Lower case letters indicate the state of the referenced output established during the last cycle in
which it was addressed or cleared.
Da
A0
A1
MR
Db
Q1a
Q2a
Q3a
Q0b
Q1b
Q2b
Q3b
E
Q0a
LOGIC DIAGRAM
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
Vin
Vout
Iin
Iout
ICC
Tstg
DC Supply Voltage (Referenced to GND)
–0.5 to +7.0
V
DC Input Voltage (Referenced to GND)
–0.5 to VCC +0.5
–0.5 to VCC +0.5
±
20
V
DC Output Voltage (Referenced to GND)
V
DC Input Current, per Pin
mA
DC Output Sink/Source Current, per Pin
±
50
mA
DC VCC or GND Current per Output Pin
Storage Temperature
±
50
mA
–65 to +150
°
C
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended
Operating Conditions.
相關(guān)PDF資料
PDF描述
MC74ACT256N DUAL 4-BIT ADDRESSABLE LATCH
MC74AC257D QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
MC74AC257 QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
MC74ACT257 QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
MC74AC257N QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC74ACT256N 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:DUAL 4-BIT ADDRESSABLE LATCH
MC74ACT257 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
MC74ACT257D 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 5V Dual 4-Input 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
MC74ACT257DG 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 5V Dual 4-Input w/3-State Out 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
MC74ACT257DR2 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 5V Dual 4-Input 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
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