MC5474F374 Datasheet, PDF (2/3 Pages) Motorola, Inc – OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS

MC54/74F374
FUNCTIONAL DESCRIPTION
The F374 consists of eight edge-triggered flip-flops with
individual D-type inputs and 3-state true outputs. The buffered
clock and buffered Output Enable are common to all flip-flops.
The eight flip-flops will store the state of their individual D
inputs that meet the setup and hold time requirements on the
LOW-to-HIGH Clock (CP) transition. With the Output Enable
(OE) LOW, the contents of the eight flip-flops are available at
the outputs. When the OE is HIGH, the outputs go to the high
impedance state. Operation of the OE input does not affect the
state of the flip-flops.
LOGIC DIAGRAM
D0
D1
D2
D3
D4
D5
D6
D7
CP
CP D
QQ
CP D
QQ
CP D
QQ
CP D
QQ
CP D
QQ
CP D
QQ
CP D
QQ
CP D
QQ
OE
O0
O1
O2
O3
O4
O5
O6
O7
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
VIL
VIK
VOH
VOL
IOZH
IOZL
IIH
IIL
IOS
ICCZ
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
Input Clamp Diode Voltage
–1.2
V
IIN = –18 mA
Output HIGH Voltage
54, 74 2.4
3.3
V
IOH = – 3.0 mA
74
2.7
3.3
V
IOH = – 3.0 mA
Output LOW Voltage
0.35 0.5
V
IOL = 24 mA
Output OFF Current — HIGH
50
µA VOUT = 2.7 V
Output OFF Current — LOW
–50
µA VOUT = 0.5 V
Input HIGH Current
20
µA VIN = 2.7 V
100
µA VIN = 7.0 V
Input LOW Current
–0.6 mA VIN = 0.5 V
Output Short Circuit Current (Note 2)
–60
–150 mA VOUT = 0 V
Power Supply Current (All Outputs OFF)
55
86
mA Dn, = GND
OE = 4.5 V
VCC = MIN
VCC = 4.5 V
VCC = 4.75 V
VCC = MIN
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
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.
FAST AND LS TTL DATA
4-171