Philips
Semiconductors
74F377A
Octal D-type flip-flop with enable
Product specification
IC15 Data Handbook
1996 Mar 12
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
2
1996 Mar 12
8530026 16555
FEATURES
High impedance inputs for reduced loading (20
A in Low and
High states)
Ideal for addressable register applications
Enable for address and data synchronization applications
Eight edgetriggered Dtype flipflops
Buffered common clock
See 'F273A for Master Reset version
See 'F373 for transparent latch version
See 'F374 for 3State version
DESCRIPTION
The 74F377A has 8 edge-triggered D-type flip-flops with individual D
inputs and Q outputs. The common buffered clock (CP) input loads
all flip-flops simultaneously when the Enable (E) input is Low.
The register is fully edge triggered. The state of each D input, one
set-up time before the Low-to-High clock transition, is transferred to
the corresponding flip-flop's Q output.
The E input must be stable one setup time prior to the Low-to-High
clock transition for predictable operation.
TYPE
TYPICAL f
MAX
TYPICAL SUPPLY CURRENT (TOTAL)
74F377A
165MHz
29mA
ORDERING INFORMATION
PACKAGES
COMMERCIAL RANGE
V
CC
= 5V
10%; T
amb
= 0
C to +70
C
PKG. DWG. #
20pin plastic DIP
N74F377AN
SOT146-1
20pin plastic SOL
N74F377AD
SOT163-1
INPUT AND OUTPUT LOADING AND FANOUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
D0 D7
Data inputs
1.0/0.033
20
A/20
A
CP
Clock pulse input (active rising edge)
1.0/0.033
20
A/20
A
E
Enable input (activeLow)
1.0/0.033
20
A/20
A
Q0 Q7
Data outputs
50/33
1.0mA/20mA
PIN CONFIGURATION
20
19
18
17
16
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
V
CC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CP
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
E
SF00350
LOGIC SYMBOL
SF00351
3
4
7
8
13
14
18
17
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
2
5
6
9
12
15
16
19
1
11
E
CP
V
CC
= Pin 20
GND = Pin 10
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
3
LOGIC SYMBOL (IEEE/IEC)
SF00352
1
3
2
4
5
7
6
8
9
G1
11
1C2
13
12
14
15
17
16
18
19
2D
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODE
E
CP
Dn
Qn
l
h
H
Load "1"
l
l
L
Load "0"
h
H
X
X
X
no change
no change
Hold (do nothing)
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
X = Don't care
= Low-to-High clock transition
LOGIC DIAGRAM
D
Q
CP
D
CP
D
CP
D
Q
CP
Q
Q
3
4
7
8
11
Q0
Q1
Q2
Q3
CP
D0
D1
D2
D3
D
Q
CP
D
CP
D
CP
D
Q
CP
Q
Q
13
14
17
18
D4
D5
D6
D7
1
2
5
6
9
12
15
16
19
Q4
Q5
Q6
Q7
E
SF00353
V
CC
= Pin 20
GND = Pin 10
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
4
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
Supply voltage
0.5 to +7.0
V
V
IN
Input voltage
0.5 to +7.0
V
I
IN
Input current
30 to +5
mA
V
OUT
Voltage applied to output in High output state
0.5 to V
CC
V
I
OUT
Current applied to output in Low output state
40
mA
T
amb
Operating free air temperature range
0 to +70
C
T
stg
Storage temperature range
65 to +150
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IH
Highlevel input voltage
2.0
V
V
IL
Lowlevel input voltage
0.8
V
I
Ik
Input clamp current
18
mA
I
OH
Highlevel output current
1
mA
I
OL
Lowlevel output current
20
mA
T
amb
Operating free air temperature range
0
+70
C
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST
LIMITS
UNIT
CONDITIONS
1
MIN
TYP
2
MAX
E & CP inputs
V
CC
= MIN, V
IL
= 0.0V
3
,
10%V
CC
2.5
V
V
OH
High-level output voltage
V
IH
= 4.5V
3
, I
OH
= MAX
5%V
CC
2.7
3.4
V
Other inputs
V
CC
= MIN, V
IL
= MAX,
10%V
CC
2.5
V
V
IH
= MIN, I
OH
= MAX
5%V
CC
2.7
V
V
OL
Low-level output voltage
V
CC
= MIN, V
IL
= MAX,
10%V
CC
0.35
0.50
V
V
IH
= MIN, I
OL
= MAX
5%V
CC
0.35
0.50
V
V
IK
Input clamp voltage
V
CC
= MIN, I
I
= I
IK
0.73
-1.2
V
I
I
Input current at maximum input voltage
V
CC
= 0.0V, V
I
= 7.0V
100
A
I
IH
Highlevel input current
V
CC
= MAX, V
I
= 2.7V
20
A
I
IL
Lowlevel input current
V
CC
= MAX, V
I
= 0.5V
20
A
I
OS
Short circuit output current
4
V
CC
= MAX
60
150
mA
I
Supply current (total)
I
V
= MAX
27
40
mA
I
CC
Supply current (total)
I
CCH
V
CC
= MAX
27
40
mA
I
CCL
V
CC
= MAX
29
43
mA
Notes to DC electrical characteristics
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
CC
= 5V, T
amb
= 25
C.
3. To reduce the effect of external noise during test. Special test conditions are not necessary for the '377A.
4. Not more than one output should be shorted at a time. For testing I
OS
, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I
OS
tests should be performed last.
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
5
AC CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
WAVEFORM
T
amb
= +25
o
C
V
CC
= +5.0V
C
L
= 50pF
R
L
= 500
T
amb
=0
o
C to +70
o
C
V
CC
= +5.0V
10%
C
L
= 50pF
R
L
= 500
UNIT
MIN
TYP
MAX
MIN
MAX
f
MAX
Maximum clock frequency
1
150
165
120
MHz
t
PLH
t
PHL
Propagation delay
CP to Qn
1
3.0
4.5
5.0
6.5
8.0
9.0
2.5
4.0
9.0
10.5
ns
AC SETUP REQUIREMENTS
LIMITS
SYMBOL
PARAMETER
WAVEFORM
T
amb
= +25
o
C
V
CC
= +5.0V
C
L
= 50pF
R
L
= 500
T
amb
= 0
o
C to +70
o
C
V
CC
= +5.0V
10%
C
L
= 50pF
R
L
= 500
UNIT
MIN
TYP
MAX
MIN
MAX
t
s
(H)
t
s
(L)
Setup time, High or Low
Dn to CP
2
2.5
2.5
2.5
2.5
ns
t
h
(H)
t
h
(L)
Hold time, High or Low
Dn to CP
2
1.0
0.0
1.0
0.0
ns
t
s
(H)
t
s
(L)
Setup time, High or Low
E to CP
2
3.0
4.0
3.0
4.5
ns
t
h
(H)
t
h
(L)
Hold time, High or Low
E to CP
2
0.0
0.0
0.0
0.0
ns
t
w
(H)
t
w
(L)
Clock Pulse width
High or Low
1
4.0
4.0
5.0
4.0
ns
AC WAVEFORMS
CP
V
M
V
M
V
M
t
w
(H)
1/f
max
V
M
V
M
t
PLH
t
w
(L)
t
PHL
Qn
SF00294
Waveform 1. Propagation Delay, Clock Input to Output, Clock
Pulse Width and Maximum Clock Frequency
NOTE: For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output
performance.
CP
V
M
V
M
V
M
V
M
V
M
t
s
(L)
E
t
h
= 0
t
h
= 0
t
s
(H)
D
n
V
M
t
s
t
h
V
M
V
M
SF01237
Waveform 2. Data and Enable
Setup and Hold Times
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
6
TEST CIRCUIT AND WAVEFORM
tw
90%
VM
10%
90%
VM
10%
90%
VM
10%
90%
VM
10%
NEGATIVE
PULSE
POSITIVE
PULSE
tw
AMP (V)
0V
0V
tTHL (tf
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
t
THL
1MHz
500ns
2.5ns
2.5ns
Input Pulse Definition
VCC
family
74F
D.U.T.
PULSE
GENERATOR
RL
CL
RT
VIN
VOUT
Test Circuit for Open Collector Outputs
DEFINITIONS:
R
L
= Load resistor;
see AC electrical characteristics for value.
C
L
= Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
tTHL (tf
)
tTLH (tr
)
tTLH (tr
)
AMP (V)
amplitude
3.0V
1.5V
V
M
RL
7.0V
SF00128
TEST
SWITCH
t
PLZ
closed
t
PZL
closed
All other
open
SWITCH POSITION
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
7
DIP20:
plastic dual in-line package; 20 leads (300 mil)
SOT146-1
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
8
SO20:
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
1996 Mar 12
9
NOTES
Philips Semiconductors
Product specification
74F377A
Octal D-type flip-flop with enable
yyyy mmm dd
10
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 940883409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print code
Date of release: 10-98
Document order number:
9397-750-05121
Philips
Semiconductors
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
[1]
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
Data sheet status
[1]
Please consult the most recently issued datasheet before initiating or completing a design.
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