MOTOROLA MC74F574 Octal d-type flip-flop with 3-state output Datasheet

MC74F574
OCTAL D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUTS
The MC74F574 is a high-speed, low-power octal D-type flip-flop featuring
separate D-type inputs for each flip-flop and 3-state outputs for bus oriented
applications. A buffered clock (CP) and Output Enable (OE) are common to
all flip-flops.
This device is functionally identical to the F374 except for the pinouts.
• Broadside Pinout Version of F374
• Edge-Triggered D-Type Inputs
• Buffered Positive Edge-Triggered Clock
• 3-State Outputs for Bus Oriented Applications
• ESD Protection > 4000 Volts
PIN ASSIGNMENT
VCC O0
20
19
OCTAL D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUTS
FAST SCHOTTKY TTL
J SUFFIX
CERAMIC
CASE 732-03
20
O1
O2
O3
O4
O5
O6
O7
CP
18
17
16
15
14
13
12
11
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
1
OE
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
DW SUFFIX
SOIC
CASE 751D-03
20
1
LOGIC SYMBOL
2
3
4
5
6
7
8
9
ORDERING INFORMATION
11
CP
1
OE
D0
D1
D2
D3
D4
D5
D6
D7
O0
O1
O2
O3
O4
O5
O6
O7
19
18
17
16
15
14
13
12
MC74FXXXJ
Ceramic
MC74FXXXN
Plastic
MC74FXXXDW SOIC
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
DC Supply Voltage
74
4.5
5.0
5.5
V
TA
Operating Ambient Temperature Range
74
0
25
70
°C
IOH
Output Current — High
74
—
—
3.0
mA
IOL
Output Current — Low
74
—
—
24
mA
FAST AND LS TTL DATA
4-226
MC74F574
FUNCTION TABLE
Inputs
Internal
Register
Outputs
Operating Mode
OE
CP
Dn
Q0–Q7
L
L
↑
↑
l
h
L
H
L
H
L
↑
X
NC
NC
H
H
↑
X
Dn
X
Dn
X
Z
Z
Load and read register
Hold
Disable outputs
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the Low-to-High clock transition
L = LOW voltage level
l = LOW voltage level one set-up time prior to the Low-to-High clock transition
NC = No change
X = Don’t care
Z = High impedance “off” state
↑ = Low-to-High clock transition
↑ = Not a Low-to-High clock transition
FUNCTIONAL DESCRIPTION
The MC74F574 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 times 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.
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
(Note 1)
VIH
Input HIGH Voltage
2.0
—
—
V
Guaranteed Input HIGH Voltage
VIL
Input LOW Voltage
—
—
0.8
V
Guaranteed Input LOW Voltage
VIK
Input Clamp Diode Voltage
—
—
– 1.2
V
VCC = MIN, IIN = – 18 mA
2.4
—
—
V
VOH
Output HIGH Voltage
2.7
—
—
V
VOL
Output LOW Voltage
—
—
0.5
V
—
—
20
IIH
Input HIGH Current
—
—
100
IIL
Input LOW Current
—
—
– 0.6
mA
VCC = MAX, VIN = 0.5 V
IOZH
Output Off Current — HIGH
—
—
50
µA
VCC = MAX, VOUT = 2.7 V
IOZL
Output Off Current — LOW
—
—
–50
µA
VCC = MAX, VOUT = 0.5 V
IOS
Output Short Circuit Current (Note 2)
– 60
—
–150
mA
VCC = MAX, VOUT = 0 V
ICCZ
Power Supply Current
(All Outputs OFF)
—
55
86
mA
VCC = MAX
µA
IOH = – 3.0 mA
IOL = 24 mA
VCC = MIN
VCC = 4.75 V
VCC = MIN
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
Dn – GND;
OE = 4.5 V
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
4-227
MC74F574
LOGIC DIAGRAM
D0
D1
D2
D3
D4
D5
D6
D7
CP
CP
D
CP
D
CP
D
CP
D
CP
D
CP
D
CP
D
CP
D
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
OE
O0
O1
O2
O3
O4
O5
O6
O7
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
54 / 74F
74F
TA = + 25°C
VCC = + 5.0 V
CL = 50 pF
TA = 0°C to + 70°C
VCC = +5.0 V ± 10%
CL = 50 pF
Min
Typ
Max
Min
Max
Unit
fMAX
Maximum Clock Frequency
100
—
—
70
—
MHz
tPLH
tPHL
Propagation Delay
CP to On
2.5
2.5
—
—
8.5
8.5
2.5
2.5
8.5
8.5
ns
tPZH
tPZL
Output Enable Time
3.0
3.0
—
—
9.0
9.0
2.5
2.5
10.0
10.0
ns
tPHZ
tPLZ
Output Disable Time
1.5
1.0
—
—
5.5
5.5
1.5
1.0
6.5
6.5
ns
AC OPERATING CHARACTERISTICS
Symbol
Parameter
54 / 74F
74F
TA = + 25°C
VCC = + 5.0 V
CL = 50 pF
TA = 0°C to + 70°C
VCC = +5.0 V ± 10%
CL = 50 pF
Min
Typ
Max
Min
Typ
Max
Unit
ts(H)
ts(L)
Setup Time, HIGH or LOW
Dn to CP
2.5
2.0
—
—
—
—
2.5
3.0
—
—
—
—
ns
th(H)
th(L)
Hold Time, HIGH to LOW
Dn to CP
2.0
2.0
—
—
—
—
2.0
2.0
—
—
—
—
ns
tw(H)
tw(L)
CP Pulse Width
HIGH or LOW
5.0
5.0
—
—
—
—
5.0
5.0
—
—
—
—
ns
FAST AND LS TTL DATA
4-228
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