Motorola MC74F174D, MC74F174N, MC54F174J Datasheet
4-86
FAST AND LS TTL DATA
HEX D FLIP-FLOP WITH
MASTER RESET
The MC54/74F174 is a high-speed hex D flip-flop. The device is used primarily as a 6-bit edge-triggered storage register. The device has a Master Reset to simultaneously clear all flip-flops.
The F174 consists of six edge-triggered D flip-flops with individual D inputs
and Q outputs. The Clock (CP) and Master Reset (MR
) are common to all
flip-flops. The state of each D input, one setup time before low-to-high clock
transition, is transferred to the corresponding flig-flop’s Q output. A LOW input
to the Master Reset (MR
) will force all outputs LOW independent of Clock or
Data inputs. The F174 is useful for applications where only the true output is
required and the Clock and Master Reset are common to all storage elements.
• Six Edge-triggered D-type Inputs
• Buffered Positive Edge-triggered Common Clock
• Buffered, Asynchronous Common Reset
CONNECTION DIAGRAM DIP (TOP VIEW)
1516 14 13 12 11 10
21 3 4 5 6 7
V
CC
9
8
Q5D5D4Q4D3Q3CP
MR
Q0D0D1Q1D2Q2GND
FUNCTION TABLE
Inputs Outputs
@ tn, MR = H @ tn + 1
D
n
Q
n
H H
L L
tn = Bit time before clock pulse
tn + 1 = Bit time after clock pulse
H = HIGH Voltage Level
L = LOW Voltage Level
MC54/74F174
HEX D FLIP-FLOP
WITH MASTER RESET
FAST SCHOTTKY TTL
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
MC54FXXXJ Ceramic
MC74FXXXN Plastic
MC74FXXXD SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
VCC = PIN 16
GND = PIN 8
14
13
12
11 10
9
76
54
3
2
1
15
D
5
D
3
D
2
D
1
D
0
D
4
Q
5
Q
3
Q
2
Q
1
Q
0
Q
4
CP MR
4-87
FAST AND LS TTL DATA
MC54/74F174
LOGIC DIAGRAM
D
5
D
3
D
2
D
1
D
0
D
4
Q
5
Q
3
Q
2
Q
1
Q
0
Q
4
CPMR
D Q
CP
CD
D Q
CP
CD
D Q
CP
CD
D Q
CP
CD
D Q
CP
CD
D Q
CP
CD
GUARANTEED OPERATING RANGES
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage 54, 74 4.5 5.0 5.5 V
T
A
Operating Ambient Temperature Range
54 –55 25 125 °C
A
74 0 25 70
I
OH
Output Current — High 54, 74 –1.0 mA
I
OL
Output Current — Low 54, 74 20 mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol Parameter Min Typ Max Unit Test Conditions
V
IH
Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage
V
IL
Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage
V
IK
Input Clamp Diode Voltage –1.2 V VCC = MIN, IIN = – 18 mA
V
OH
Output HIGH Voltage 54, 74 2.5 V IOL = – 1.0 mA VCC = 4.50 V
74 2.7 V IOL = – 1.0 mA VCC = 4.75 V
V
OL
Output LOW Voltage 0.5 V IOL = 20 mA VCC = MIN
I
IH
Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V
0.1 mA VCC = MAX, VIN = 7.0 V
I
IL
Input LOW Current –0.6 mA VCC = MAX, VIN = 0.5 V
I
OS
Output Short Circuit Current (Note 2) – 60 –150 mA VCC = MAX, V
OUT
= 0 V
I
CC
Power Supply Current 30 45 mA VCC = MAX, Dn = MR = 4.5 V, CP =
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
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