M74HC377
OCTAL D TYPE FLIP FLOP
■
■
■
■
■
■
■
HIGH SPEED :
fMAX = 66 MHz (TYP.) at VCC = 6V
LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA=25°C
HIGH NOISE IMMUNITY:
VNIH = V NIL = 28 % VCC (MIN.)
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 377
DESCRIPTION
The M74HC377 is an high speed CMOS OCTAL
D TYPE FLIP FLOP fabricated with silicon gate
C2MOS technology.
Information at the D inputs meeting the setup time
requirements is transferred to the Q outputs on the
positive going edge of the clock pulse if the enable
input G is low. Clock triggering occurs at a
particular voltage level and is not directly related
)
(s
t
c
u
DIP
PACKAGE
TUBE
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TSSOP
u
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P
e
ORDER CODES
DIP
SOP
TSSOP
)
s
(
ct
SOP
M74HC377B1R
M74HC377M1R
T&R
M74HC377RM13TR
M74HC377TTR
to the transition time of the positive going pulse.
When the clock input is at either the high or low
level, the D input signal has no effect at the output.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
d
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PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/11
M74HC377
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
1
G
Data Enable Input (Active
LOW)
2, 5, 6, 9, 12,
15, 16, 19
3, 4, 7, 8, 13,
14, 17, 18
1Q to 8Q
Flip Flop Outputs
1D to 8D
Data Inputs
11
CLOCK
10
20
GND
Vcc
Clock Input (LOW to
HIGH, Edge Triggered)
Ground (0V)
Positive Supply Voltage
)
s
(
ct
TRUTH TABLE
u
d
o
INPUTS
OUTPUTS
G
CLOCK
DATA
H
X
X
e
t
e
l
L
L
L
o
s
b
X
X : Don’t Care
O
)
LOGIC DIAGRAM
s
(
t
c
u
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P
e
t
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s
b
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This logic diagram has not be used to estimate propagation delays
2/11
Pr
Q
NO CHANGE
L
H
H
X
NO CHANGE
M74HC377
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
± 25
mA
± 50
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
VI
Input Voltage
VO
Output Voltage
Top
Operating Temperature
Input Rise and Fall Time
o
s
b
tr, tf
s
(
t
c
O
)
u
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r
P
Value
Unit
2 to 6
V
0 to VCC
V
0 to VCC
V
-55 to 125
°C
VCC = 2.0V
0 to 1000
ns
VCC = 4.5V
0 to 500
ns
VCC = 6.0V
0 to 400
ns
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3/11
M74HC377
DC SPECIFICATIONS
Test Condition
Symbol
VIH
Parameter
High Level Input
Voltage
Low Level Input
Voltage
VIL
VOH
VOL
II
High Level Output
Voltage
Low Level Output
Voltage
ICC
Input Leakage
Current
Quiescent Supply
Current
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4/11
TA = 25°C
VCC
(V)
Min.
2.0
4.5
6.0
2.0
4.5
6.0
Typ.
Max.
1.5
3.15
4.2
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
1.5
3.15
4.2
0.5
1.35
1.8
0.5
1.35
1.8
1.9
2.0
1.9
1.9
IO=-20 µA
4.4
4.5
4.4
4.4
du
IO=-20 µA
5.9
6.0
5.9
IO=-4.0 mA
4.18
4.31
4.13
5.68
5.9
6.0
IO=-5.2 mA
2.0
IO=20 µA
0.0
0.1
4.5
IO=20 µA
0.0
0.1
o
r
P
6.0
IO=20 µA
0.0
0.1
4.5
IO=4.0 mA
0.17
6.0
IO=5.2 mA
0.18
6.0
6.0
5.8
V
5.63
V
)
s
(
ct
IO=-20 µA
4.5
Max.
0.5
1.35
1.8
4.5
6.0
Unit
1.5
3.15
4.2
2.0
V
4.10
5.60
0.1
0.1
0.1
0.1
0.1
0.1
0.26
0.33
0.40
0.26
0.33
0.40
VI = VCC or GND
± 0.1
±1
±1
µA
VI = VCC or GND
4
40
80
µA
)
(s
t
c
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Value
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M74HC377
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Symbol
Parameter
tPLH tPHL Propagation Delay
Time
(CLOCK - Q)
Maximum Clock
Frequency
fMAX
tW(H)
tW(L)
Minimum Pulse
Width
(CLOCK)
ts
Minimum Set-up
Time
(D - CK)
Minimum Set-up
Time
(G - CK)
ts
th
TA = 25°C
VCC
(V)
tTLH tTHL Output Transition
Time
Minimum Hold
Time
Value
Min.
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
7.2
36
42
Typ.
Max.
30
8
7
57
17
13
14
56
66
24
6
5
24
6
5
30
8
6
75
15
13
140
28
24
Min.
Min.
Max.
95
19
16
175
35
30
75
15
13
75
15
13
75
15
13
0
0
0
let
110
22
19
210
42
36
ns
ns
)
s
(
ct
u
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o
95
19
16
95
19
16
95
19
16
0
0
0
Unit
Max.
4.8
24
28
r
P
e
s
(
t
c
u
d
o
-55 to 125°C
5.8
29
34
o
s
b
O
)
-40 to 85°C
MHz
115
23
20
115
23
20
115
23
20
0
0
0
ns
ns
ns
ns
CAPACITIVE CHARACTERISTICS
Symbol
CPD
O
Parameter
e
t
e
l
o
s
b
CIN
Pr
Test Condition
VCC
(V)
Value
TA = 25°C
Min.
Typ.
Max.
10
Input Capacitance
5.0
5
Power Dissipation
Capacitance (note
1)
5.0
34
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
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
5/11
M74HC377
TEST CIRCUIT
)
s
(
ct
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P
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CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
t
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WAVEFORM 1: PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (CK), SETUP AND HOLD
TIME (D TO CK) (f=1MHz; 50% duty cycle)
)
(s
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6/11
s
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M74HC377
WAVEFORM 2 :CK MAXIMUM FREQUENCY (f=1MHz; 50% duty cycle)
)
s
(
ct
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P
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)
(s
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WAVEFORM 3 : SETUP AND HOLD TIME (G TO CK) (f=1MHz; 50% duty cycle)
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7/11
M74HC377
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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P001J
8/11
M74HC377
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
M74HC377
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
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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
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P
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A
O
)
8°
0.012
t
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0.169
)
s
(
ct
M74HC377
)
s
(
ct
u
d
o
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P
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)
(s
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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11/11