參數(shù)資料
型號: MC74AC74D
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP
中文描述: AC SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO14
封裝: PLASTIC, SOIC-14
文件頁數(shù): 1/6頁
文件大?。?/td> 188K
代理商: MC74AC74D
5-1
FACT DATA
The MC74AC74/74ACT74 is a dual D-type flip-flop with Asynchronous Clear
and Set inputs and complementary (Q,Q) outputs. Information at the input is
transferred to the outputs on the positive edge of the clock pulse. Clock triggering
occurs at a voltage level of the clock pulse and is not directly related to the transition
time of the positive-going pulse. After the Clock Pulse input threshold voltage has
been passed, the Data input is locked out and information present will not be
transferred to the outputs until the next rising edge of the Clock Pulse input.
Asynchronous Inputs:
LOW input to SD (Set) sets Q to HIGH level
LOW input to CD (Clear) sets Q to LOW level
Clear and Set are independent of clock
Simultaneous LOW on CD and SD makes both Q and Q HIGH
Outputs Source/Sink 24 mA
ACT74 Has TTL Compatible Inputs
CP
1
CD
2
CP
2
D
2
13
14
12
11
10
9
8
2
1
3
4
5
6
7
VCC
CD1
D1
CP1
SD1
Q1
Q1
CD2
D2
CP2
SD2
Q2
Q2
CD
1
SD
1
Q
1
Q
1
D
1
SD
2
Q
2
Q
2
GND
PIN NAMES
D1, D2
CP1, CP2
CD1, CD2
SD1, SD2
Q1, Q1, Q2, Q2
Data Inputs
Clock Pulse Inputs
Direct Clear Inputs
Direct Set Inputs
Outputs
TRUTH TABLE
(Each Half)
Inputs
Outputs
SD
L
H
L
H
H
H
CD
H
L
L
H
H
H
CP
D
Q
Q
X
X
X
X
X
X
H
L
X
H
L
H
H
L
Q0
L
H
H
L
H
Q0
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Clock Transition
Q0(Q0) = Previous Q(Q) before
LOW-to-HIGH Transition of Clock
DUAL D-TYPE POSITIVE
EDGE-TRIGGERED
FLIP-FLOP
N SUFFIX
CASE 646-06
PLASTIC
D SUFFIX
CASE 751A-03
PLASTIC
LOGIC SYMBOL
SD1
Q1
CP1
Q1
CD1
SD2
Q2
D2
CP2
Q2
CD2
D1
相關(guān)PDF資料
PDF描述
MC74AC74N DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP
MC74ACT74N DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP
MC74ACT810D QUAD 2-INPUT EXCLUSIVE-NOR GATE
MC74AC810D QUAD 2-INPUT EXCLUSIVE-NOR GATE
MC74AC810N QUAD 2-INPUT EXCLUSIVE-NOR GATE
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