MC74AC175
MC74ACT175
Quad D Flip Flop With
Master Reset
The MC74AC/ACT175 is a high-speed quad D flip-flop. The device is useful for
general flip-flop requirements where clock and clear inputs are common. The
information on the D inputs is transferred to storage during the LOW-to-HIGH clock
transition. The device has a Master Reset to simultaneously clear all flip-flops, when
MR is low.
The MC74AC/ACT175 consists of four edge-triggered D flip-flops with individual
D inputs and Q and Q outputs. The Clock (CP) and Master Reset (MR) are common
to all flip-flops. Each D input鈥檚 state is transferred to the corresponding flip-flop鈥檚
output following the LOW-to-HIGH Clock (CP) transition. A LOW input to the Master
Reset (MR) will force all Q outputs LOW and Q outputs HIGH independent of Clock
or Data inputs. The MC74AC/ACT175 is useful for applications where the Clock and
Master Reset are common to all storage elements.
鈥?/div>
Outputs Source/Sink 24 mA
鈥?鈥睞CT175
Has TTL Compatible Inputs
QUAD D FLIP-FLOP
WITH MASTER RESET
N SUFFIX
CASE 648-08
PLASTIC
Pinout: 16-Lead Packages
(Top View)
VCC
16
Q3
15
Q3
14
D3
13
D2
12
Q2
11
Q2
10
CP
9
D SUFFIX
CASE 751B-05
PLASTIC
Data Inputs
Clock Pulse Input
Master Reset Input
Outputs
Outputs
PIN NAMES
D0 鈥?D3
CP
MR
Q0 鈥?Q3
Q0 鈥?Q3
1
MR
2
Q0
3
Q0
4
D0
5
D1
6
Q1
7
Q1
8
GND
LOGIC SYMBOL
TRUTH TABLE
Inputs
MR
CP
D
Outputs
Qn
Qn
D0
CP
D1
D2
D3
L
H
H
H
X
L
X
H
L
X
L
H
L
Qn
H
L
H
Qn
MR
Q0
Q0
Q1
Q1
Q2
Q2
Q3
Q3
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Transition of Clock
FACT DATA
5-1
next