M74HCT574
OCTAL D-TYPE FLIP FLOP
WITH 3 STATE OUTPUT NON INVERTING
■
■
■
■
■
■
HIGH SPEED:
fMAX = 50MHz (TYP.) at VCC = 4.5V
LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 574
DESCRIPTION
The M74HCT574 is an high speed CMOS OCTAL
D-TYPE FLIP FLOP WITH 3-STATE OUTPUTS
INVERTING fabricated with sub-micron silicon
gate C2MOS technology.
This 8 bit D-TYPE FLIP FLOP is controlled by a
clock input (CK) and an output enable input (OE).
On the positive transition of the clock, the Q
outputs will be set to the logic state that were
setup at the D inputs.
While the OE input is at low level, the eight outputs
will be in a normal logic state (high or low logic
level) and while OE is in high level the outputs will
be in a high impedance state.
)
(s
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r
DIP
PACKAGE
TUBE
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TSSOP
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ORDER CODES
DIP
SOP
TSSOP
)
s
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ct
SOP
M74HCT574B1R
M74HCT574M1R
T&R
M74HCT574RM13TR
M74HCT574TTR
The output control does not affect the internal
operation of flip-flops; that is, the old data can be
retained or the new data can be entered even
while the outputs are off.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
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PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
1/11
M74HCT574
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
1
OE
2, 3, 4, 5, 6,
7, 8, 9
12, 13, 14,
15, 16, 17,
18, 19
11
D0 to D7
3 State Output Enable
Input (Active LOW)
Data Inputs
Q7 to Q0
3 State Outputs
10
20
CK
NAME AND FUNCTION
GND
VCC
Clock Input (LOW to
HIGH, edge triggered)
Ground (0V)
Positive Supply Voltage
u
d
o
TRUTH TABLE
INPUTS
CK
D
H
X
t
e
l
o
X
L
X
L
L
X: Don’t Care
Z: High Impedance
)
(s
LOGIC DIAGRAM
t
c
u
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P
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s
b
O
This logic diagram has not be used to estimate propagation delays
2/11
r
P
e
OE
s
b
O
)
s
(
ct
OUTPUT
Q
Z
NO CHANGE
L
L
H
H
M74HCT574
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Parameter
Value
Supply Voltage
Unit
-0.5 to +7
V
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
V
DC Input Diode Current
± 20
mA
IOK
DC Output Diode Current
± 20
mA
IO
DC Output Current
± 35
mA
± 70
mA
500(*)
mW
VI
DC Input Voltage
VO
DC Output Voltage
IIK
ICC or IGND DC VCC or Ground Current
PD
Power Dissipation
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
V
)
s
(
t
-65 to +150
300
c
u
d
°C
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
e
t
e
l
Parameter
Supply Voltage
o
s
b
VI
Input Voltage
VO
Output Voltage
Top
Operating Temperature
tr, tf
Input Rise and Fall Time (VCC = 4.5 to 5.5V)
s
(
t
c
O
)
o
r
P
Value
Unit
4.5 to 5.5
V
0 to VCC
V
0 to VCC
V
-55 to 125
°C
0 to 500
ns
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P
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3/11
M74HCT574
DC SPECIFICATIONS
Test Condition
Symbol
VIH
Parameter
High Level Input
Voltage
VIL
Low Level Input
Voltage
VOH
VOL
II
IOZ
ICC
∆ ICC
TA = 25°C
VCC
(V)
Min.
4.5
to
5.5
4.5
to
5.5
High Level Output
Voltage
4.5
Low Level Output
Voltage
4.5
Input Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
Additional Worst
Case Supply
Current
s
b
O
4/11
Max.
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
2.0
0.8
4.4
4.5
4.4
4.4
IO=-6.0 mA
4.18
4.31
4.13
4.10
0.0
0.1
IO=6.0 mA
0.17
0.26
VI = VCC or GND
± 0.1
5.5
VI = VIH or VIL
VO = VCC or GND
5.5
VI = VCC or GND
5.5
Per Input pin
VI = 0.5V or
VI = 2.4V
Other Inputs at
VCC or GND
IO = 0
)
(s
0.1
V
(s)
ct
u
d
o
0.33
V
0.1
0.40
V
V
±1
±1
µA
± 0.5
±5
± 10
µA
4
40
80
µA
2.0
2.9
3.0
mA
r
P
e
t
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l
o
s
b
O
Max.
0.8
IO=-20 µA
IO=20 µA
Unit
2.0
0.8
5.5
d
o
r
t
e
l
o
Typ.
2.0
t
c
u
P
e
Value
M74HCT574
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Symbol
Parameter
tTLH tTHL Output Transition
Time
tPLH tPHL Propagation Delay
Time
tPZL tPZH High Impedance
Output Enable
Time
tPLZ tPHZ High Impedance
Output Disable
Time
fMAX
Maximum Clock
Frequency
Minimum Pulse
tW(H)
Width (CK)
tW(H)
th
CL
(pF)
4.5
4.5
TA = 25°C
12
15
18
50
20
30
38
45
150
24
36
45
54
19
30
38
45
23
36
45
19
30
38
RL = 1 KΩ
150
50
4.5
50
4.5
50
4.5
50
4.5
50
RL = 1 KΩ
31
50
25
)
(s
od
Pr
CIN
Input Capacitance
COUT
Output
Capacitance
Power Dissipation
Capacitance (note
1)
e
t
e
ol
CPD
s
b
O
Max.
Max.
ns
ns
)
s
(
ct
54
u
d
o
r
P
e
Unit
45
21
ns
ns
ns
8
15
19
22
ns
7
15
19
22
ns
0
0
0
ns
t
e
l
o
t
c
u
VCC
(V)
Min.
7
s
b
O
Test Condition
Parameter
Min.
50
CAPACITIVE CHARACTERISTICS
Symbol
-55 to 125°C
Max.
4.5
Min.
-40 to 85°C
Typ.
50
4.5
Minimum Set-up
Time
Minimum Hold
Time
ts
VCC
(V)
Value
Value
TA = 25°C
Min.
Typ.
Max.
5
10
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
10
pF
63
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per
Flip-Flop)
5/11
M74HCT574
TEST CIRCUIT
)
s
(
ct
u
d
o
TEST
tPLH, tPHL
tPZL, tPLZ
e
t
e
ol
tPZH, tPHZ
CL = 50pF/150pF or equivalent (includes jig and probe capacitance)
R1 = 1KΩ or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
s
b
O
Pr
SWITCH
Open
VCC
GND
WAVEFORM 1: CK TO Qn PROPAGATION DELAYS, CK MAXIMUM FREQUENCY, Dn TO CK
SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle)
)
(s
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6/11
M74HCT574
WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIMES (f=1MHz; 50% duty cycle)
)
s
(
ct
u
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P
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t
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l
o
)
(s
s
b
O
WAVEFORM 3 : MINIMUM PULSE WIDTH (f=1MHz; 50% duty cycle)
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7/11
M74HCT574
Plastic DIP-20 (0.25) MECHANICAL DATA
mm.
inch
DIM.
MIN.
a1
0.254
B
1.39
TYP
MAX.
MIN.
TYP.
MAX.
0.010
1.65
0.055
0.065
b
0.45
0.018
b1
0.25
0.010
D
)
s
(
ct
25.4
E
8.5
e
2.54
e3
22.86
u
d
o
0.335
7.1
I
3.93
s
(
t
c
1.34
e
t
e
ol
bs
O
)
3.3
Z
Pr
0.100
F
L
1.000
0.900
0.280
0.155
0.130
0.053
u
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o
r
P
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s
b
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P001J
8/11
M74HCT574
SO-20 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
a1
2.65
MAX.
0.1
0.104
0.2
a2
0.004
0.008
2.45
0.096
b
0.35
0.49
0.014
b1
0.23
0.32
0.009
C
0.5
0.019
)
s
(
ct
0.012
0.020
c1
u
d
o
45° (typ.)
D
12.60
13.00
0.496
E
10.00
10.65
0.393
e
1.27
e3
11.43
F
7.40
7.60
L
0.50
1.27
M
)
(s
S
e
t
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ol
s
b
O
0.75
Pr
0.512
0.419
0.050
0.450
0.291
0.300
0.020
0.050
0.029
8° (max.)
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PO13L
9/11
M74HCT574
TSSOP20 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
A
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
c
0.09
0.20
0.004
D
6.4
6.5
6.6
0.252
E
6.2
6.4
6.6
0.244
E1
4.3
4.4
4.48
1
e
bs
0.65 BSC
K
0°
L
0.45
let
o
s
b
0.60
s
(
t
c
0.75
du
ro
P
e
A2
A1
b
0.260
0.252
0.260
0.173
0.176
0.0256 BSC
0°
8°
0.018
0.024
O
K
e
0.030
L
E
c
D
E1
PIN 1 IDENTIFICATION
1
0087225C
10/11
0.0089
0.256
u
d
o
r
P
e
A
O
)
8°
0.012
t
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l
o
0.169
)
s
(
ct
M74HCT574
)
s
(
ct
u
d
o
r
P
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t
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l
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)
(s
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b
O
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11/11