NSC MM74HCT574WM

February 1990
MM54HCT573/MM74HCT573
TRI-STATEÉ Octal D-Type Latch
MM54HCT574/MM74HCT574
TRI-STATE Octal D-Type Flip-Flop
General Description
The MM54HCT573/MM74HCT573 octal D-type latches and
MM54HCT574/MM74HCT574 Octal D-type flip flops advanced silicon-gate CMOS technology, which provides the
inherent benefits of low power consumption and wide power
supply range, but are LS-TTL input and output characteristic
& pin-out compatible. The TRI-STATE outputs are capable
of driving 15 LS-TTL loads. All inputs are protected from
damage due to static discharge by internal diodes to VCC
and ground.
When the MM54HCT573/MM74HCT573 LATCH ENABLE
input is high, the Q outputs will follow the D inputs. When
the LATCH ENABLE goes low, data at the D inputs will be
retained at the outputs until LATCH ENABLE returns high
again. When a high logic level is applied to the OUTPUT
CONTROL input, all outputs go to a high impedance state,
regardless of what signals are present at the other inputs
and the state of the storage elements.
The MM54HCT574/MM74HCT574 are positive edge triggered flip-flops. Data at the D inputs, meeting the setup and
hold time requirements, are transferred to the Q outputs on
positive going transitions of the CLOCK (CK) input. When a
high logic level is applied to the OUTPUT CONTROL (OC)
input, all outputs go to a high impedance state, regardless
of what signals are present at the other inputs and the state
of the storage elements.
MM54HCT/MM74HCT devices are intended to interface between TTL and NMOS components and standard CMOS
devices. These parts are also plug in replacements for LSTTL devices and can be used to reduce power consumption
in existing designs.
Features
Y
Y
Y
Y
Y
Y
TTL input characteristic compatible
Typical propagation delay: 18 ns
Low input current: 1 mA maximum
Low quiescent current: 80 mA maximum
Compatible with bus-oriented systems
Output drive capability: 15 LS-TTL loads
Connection Diagram
Dual-In-Line Package
TL/F/10627 – 1
Top View
Order Number MM54HCT573* or MM74HCT573*
TL/F/10627 – 2
Top View
Order Number MM54HCT574* or MM74HCT574*
*Please look into Section 8, Appendix D for availability of various package types.
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.
C1995 National Semiconductor Corporation
TL/F/10627
RRD-B30M105/Printed in U. S. A.
MM54HCT573/MM74HCT573 TRI-STATE Octal D-Type Latch
MM54HCT574/MM74HCT574 TRI-STATE Octal D-Type Flip-Flop
PRELIMINARY
Absolute Maximum Ratings (Notes 1 & 2)
Operating Conditions
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage (VCC)
DC Input or Output Voltage
(VIN, VOUT)
b 0.5 to a 7.0V
Supply Voltage (VCC)
b 1.5 to VCC a 1.5V
DC Input Voltage (VIN)
b 0.5 to VCC a 0.5V
DC Output Voltage (VOUT)
g 20 mA
Clamp Diode Current (IIK, IOK)
g 35 mA
DC Output Current, per pin (IOUT)
g 70 mA
DC VCC or GND Current, per pin (ICC)
b 65§ C to a 150§ C
Storage Temperature Range (TSTG)
Power Dissipation (PD)
(Note 3)
600 mW
S.O. Package only
500 mW
Lead Temp. (TL) (Soldering 10 seconds)
260§ C
Operating Temp. Range (TA)
MM74HCT
MM54HCT
Min
4.5
Max
5.5
0
VCC
Units
V
V
b 40
b 55
a 85
a 125
§C
§C
500
ns
Input Rise or Fall Times
(tr, tf)
DC Electrical Characteristics VCC e 5V g 10% (unless otherwise specified)
Symbol
Parameter
TA e 25§ C
Conditions
74HCT
TA eb40 to 85§ C
Typ
54HCT
TA eb55 to 125§ C
Units
Guaranteed Limits
VIH
Minimum High Level
Input Voltage
2.0
2.0
2.0
V
VIL
Maximum Low Level
Input Voltage
0.8
0.8
0.8
V
VOH
Minimum High Level
Output Voltage
VIN e VIH or VIL
lIOUTl e 20 mA
lIOUTl e 6.0 mA, VCC e 4.5V
lIOUTl e 7.2 mA, VCC e 5.5V
VCC
4.2
5.7
VCCb0.1
3.98
4.98
VCCb0.1
3.84
4.84
VCCb0.1
3.7
4.7
V
V
V
Maximum Low Level
Voltage
VIN e VIH or VIL
lIOUTl e 20 mA
lIOUTl e 6.0 mA, VCC e 4.5V
lIOUTl e 7.2 mA, VCC e 5.5V
0
0.2
0.2
0.1
0.26
0.26
0.1
0.33
0.33
0.1
0.4
0.4
V
V
V
IIN
Maximum Input
Current
VIN e VCC or GND,
VIH or VIL
g 0.1
g 1.0
g 1.0
mA
IOZ
Maximum TRI-STATE
Output Leakage
Current
VOUT e VCC or GND
Enable e VIH or VIL
g 0.5
g 5.0
g 10
mA
ICC
Maximum Quiescent
Supply Current
VIN e VCC or GND
IOUT e 0 mA
8.0
80
160
mA
VIN e 2.4V or 0.5V (Note 4)
1.5
1.8
2.0
mA
VOL
Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur.
Note 2: Unless otherwise specified all voltages are referenced to ground.
Note 3: Power Dissipation temperature derating Ð plastic ‘‘N’’ package: b 12 mW/§ C from 65§ C to 85§ C; ceramic ‘‘J’’ package: b 12 mW/§ C from 100§ C to 125§ C.
Note 4: Measured per pin. All others tied to VCC or ground.
2
AC Electrical Characteristics MM54HCT573/MM74HCT573
VCC e 5.0V, tr e tf e 6 ns TA e 25§ C (unless otherwise specified)
Symbol
Parameter
Conditions
Typ
Guaranteed
Limit
Units
17
27
ns
tPHL, tPLH
Maximum Propagation Delay
Data to Output
CL e 45 pF
tPHL, tPLH
Maximum Propagation Delay
Latch Enable to Output
CL e 45 pF
16
27
ns
tPZH, tPZL
Maximum Enable Propagation Delay
Control to Output
CL e 45 pF
RL e 1 kX
21
30
ns
tPHZ, tPLZ
Maximum Disable Propagation Delay
Control to Output
CL e 5 pF
RL e 1 kX
14
23
ns
tW
Minimum Clock Pulse Width
15
ns
tS
Minimum Setup Time Data to Clock
5
ns
tH
Minimum Hold Time Clock to Data
12
ns
AC Electrical Characteristics MM54HCT573/MM74HCT573
VCC e 5.0V g 10%, tr e tf e 6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
TA e 25§ C
74HCT
TA eb40 to 85§ C
Typ
54HCT
TA eb55 to 125§ C
Units
Guaranteed Limits
tPHL, tPLH
Maximum Propagation
Delay Data to Output
CL e 50 pF
18
30
38
45
ns
tPHL, tPLH
Maximum Propagation Delay
Latch Enable to Output
CL e 50 pF
17
30
44
53
ns
tPZH, tPZL
Maximum Enable Propagation
Delay Control to Output
CL e 50 pF
RL e 1 kX
22
30
38
45
ns
tPHZ, tPLZ
Maximum Disable Propagation
Delay Control to Output
CL e 50 pF
RL e 1 kX
15
30
38
45
ns
tTHL, tTLH
Maximum Output Rise and Fall Time
CL e 50 pF
6
12
15
18
ns
tW
Minimum Clock Pulse Width
15
20
24
ns
tS
Minimum Setup Time Data to Clock
b3
5
6
8
ns
tH
Minimum Hold Time Clock to Data
4
CIN
Maximum Input Capacitance
COUT
Maximum Output Capacitance
CPD
Power Dissipation Capacitance (Note 5)
OC e VCC
OC e GND
12
15
18
ns
10
10
10
pF
20
20
20
pF
5
52
pF
pF
Note 5: CPD determines the no load dynamic power consumption, PD e CPD VCC2 f a ICC VCC, and the no load dynamic current consumption, IS e CPD
VCC f a ICC.
Truth Table
’HCT573
’HCT574
Output
Control
LE
Data
Output
Output
Control
L
L
L
H
H
H
L
X
H
L
X
X
H
L
Q0
Z
L
L
L
H
H e high level, L e low level
Clock
Data
Output
u
u
H
L
X
X
H
L
Q0
Z
L
X
H e High Level, L e Low Level
Q0 e level of output before steady-state input conditions
were established.
X e Don’t Care
u e Transition from low-to-high
Z e high impedance
Z e High impedance state
Q0 e The level of the output before steady state input conditions
were established.
3
AC Electrical Characteristics MM54HCT574/MM74HCT574
VCC e 5.0V, tr e tf e 6 ns TA e 25§ C (unless otherwise specified)
Symbol
Parameter
Conditions
Typ
Guaranteed
Limit
Units
fMAX
Maximum Clock Frequency
60
33
MHz
tPHL, tPLH
Maximum Propagation Delay
to Output
CL e 45 pF
17
27
ns
tPZH, tPZL
Maximum Enable Propagation Delay
Control to Output
CL e 45 pF
RL e 1 kX
19
28
ns
tPHZ, tPLZ
Maximum Disable Propagation Delay
Control to Output
CL e 5 pF
RL e 1 kX
14
25
ns
tW
Minimum Clock Pulse Width
15
ns
tS
Minimum Setup Time Data to Clock
12
ns
tH
Minimum Hold Time Clock to Data
5
ns
AC Electrical Characteristics MM54HCT574/MM74HCT574
VCC e 5.0V g 10%, tr e tf e 6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
TA e 25§ C
Typ
fMAX
Maximum Clock Frequency
74HCT
54HCT
TA eb40 to 85§ C TA eb55 to 125§ C Units
Guaranteed Limits
33
28
23
MHz
18
30
38
45
ns
tPHL, tPLH Maximum Propagation Delay
Clock to Output
CL e 50 pF
tPZH, tPZL Maximum Enable Propagation
Delay Control to Output
CL e 50 pF
RL e 1 kX
22
30
38
45
ns
tPHZ, tPLZ Maximum Disable Propagation
Delay Control to Output
CL e 50 pF
RL e 1 kX
15
30
38
45
ns
tTHL, tTLH Maximum Output Rise and Fall Time
CL e 50 pF
6
12
15
18
ns
ns
tW
Minimum Clock Pulse Width
15
20
24
tS
Minimum Setup Time Data to Clock
6
12
15
18
ns
tH
Minimum Hold Time Clock to Data
b1
5
6
8
ns
CIN
Maximum Input Capacitance
10
10
10
pF
COUT
Maximum Output Capacitance
20
20
20
CPD
Power Dissipation Capacitance (Note 5) OC e VCC
OC e GND
5
58
pF
pF
pF
Note 5: CPD determines the no load power consumption, PD e CPD VCC2 f a ICC VCC, and the no load dynamic current consumption, IS e CPD VCC f a ICC.
4
Physical Dimensions inches (millimeters)
Order Number MM74HCT573/HCT574 (WM)
NS Package Number M20B
5
MM54HCT573/MM74HCT573 TRI-STATE Octal D-Type Latch
MM54HCT574/MM74HCT574 TRI-STATE Octal D-Type Flip-Flop
Physical Dimensions inches (millimeters) (Continued)
Lit. Ý 111670
Order Number MM74HCT573N/HCT574 (N)
NS Package Number N20A
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