N74ALS377N [PHILIPS]
D Flip-Flop, 8-Func, Positive Edge Triggered, TTL, PDIP20,;
| 型号： | N74ALS377N |
| 厂家： | 
PHILIPS SEMICONDUCTORS |
| 描述： | D Flip-Flop, 8-Func, Positive Edge Triggered, TTL, PDIP20, 光电二极管 |
| 文件： | 总10页 (文件大小：122K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74ALS377
Octal D flip–flop with enable
Product specification
IC05 Data Handbook
1991 Feb 08
Philips
Semiconductors
Philips Semiconductors
Product specification
Octal D flip-flop with enable
74ALS377
FEATURES
PIN CONFIGURATION
• Ideal for addressable register applications
V
E
Q0
D0
D1
Q1
Q2
D2
D3
Q3
1
2
3
4
5
20
19
18
17
16
CC
• Enable for address and data synchronization applications
• Eight edge-triggered D-type flip-flops
• Buffered common clock
• See 74ALS273 for master reset version
• See 74ALS373 for transparent latch version
• See 74ALS374 for 3-State version
Q7
D7
D6
Q6
Q5
D5
D4
Q4
6
7
8
9
15
14
13
12
DESCRIPTION
The 74ALS377 has eight 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) is Low.
GND 10
11 CP
SF00350
The register is fully edge-triggered. The state of each D input, one
setup 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.
ORDERING INFORMATION
ORDER CODE
DRAWING
NUMBER
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V ±10%,
TYPICAL
T
amb
= 0°C to +70°C
SUPPLY CURRENT
(TOTAL)
TYPE
TYPICAL f
MAX
20-pin plastic DIP
20-pin plastic SOL
74ALS377N
74ALS377D
SOT146-1
SOT163-1
74ALS377
95MHz
15mA
20-pin plastic SSOP
Type II
74ALS377DB
SOT339-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74ALS (U.L.)
HIGH/LOW
LOAD VALUE
PINS
DESCRIPTION
HIGH/LOW
20µA/0.2mA
20µA/0.1mA
20µA/0.1mA
2.6mA/24mA
D0 – D7
CP
Data inputs
1.0/2.0
Clock pulse input (active rising edge)
Latch enable input
1.0/1.0
E
1.0/1.0
Q0 – Q7
Data outputs
130/240
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
3
4
7
8
13 14 17 18
1
G1
1C2
11
D0 D1 D2 D3 D4 D5 D6 D7
CP
3
4
2
5
2D
11
1
E
7
8
6
9
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
13
14
17
18
12
15
16
19
2
5
6
9
12 15 16 19
V
= Pin 20
CC
GND = Pin 10
SF00351
SF00352
2
1991 Feb 08
853–1399 01670
Philips Semiconductors
Product specification
Octal D flip-flop with enable
74ALS377
LOGIC DIAGRAM
D0
D1
D2
D3
D4
13
D5
14
D6
17
D7
18
3
4
7
8
1
E
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
CP
CP
CP
CP
CP
CP
CP
CP
11
CP
2
5
6
9
12
Q4
15
Q5
16
Q6
19
Q7
Q0
Q1
Q2
Q3
V
= Pin 20
CC
GND = Pin 10
SF00353
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODE
E
l
CP
↑
Dn
h
Qn
H
Load “1”
Load “0”
l
↑
l
L
h
H
↑
X
X
NC
NC
Hold (do nothing)
X
H = High-voltage level
h
L
l
=
=
=
High state must be present one setup time before the Low-to-High clock transition
Low-voltage level
Low state must be present one setup time before the Low-to-High clock transition
NC= No change
X
↑
=
=
Don’t care
Low-to-High clock transition
3
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip-flop with enable
74ALS377
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
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
UNIT
V
V
CC
Supply voltage
Input voltage
Input current
V
V
IN
IN
I
mA
V
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
–0.5 to V
48
V
OUT
CC
I
mA
°C
°C
OUT
T
amb
0 to +70
T
–65 to +150
stg
RECOMMENDED OPERATING CONDITIONS
LIMITS
NOM
5.0
SYMBOL
PARAMETER
UNIT
MIN
4.5
MAX
V
CC
Supply voltage
5.5
V
V
V
IH
High-level input voltage
Low-level input voltage
Input clamp current
2.0
V
0.8
–18
–2.6
24
V
IL
IK
I
mA
mA
mA
°C
I
High-level output current
Low-level output current
Operating free-air temperature range
OH
I
OL
T
amb
0
+70
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
High-level output voltage
Low-level output voltage
TEST CONDITIONS
UNIT
2
MIN
TYP
MAX
I
= –0.4mA
V
– 2
V
V
OH
CC
V
V
±10%, V = MAX,
IL
CC
V
OH
= MIN
IH
I
= MAX
= 12mA
= 24mA
2.4
3.2
0.25
0.35
–0.73
OH
I
0.40
0.50
–1.5
0.1
V
OL
OL
V
V
= MIN, V = MAX,
IL
CC
IH
V
OL
= MIN
I
V
V
IK
Input clamp voltage
V
CC
V
CC
V
CC
= MIN, I = I
IK
V
I
I
I
Input current at maximum input voltage
High-level input current
= MAX, V = 7.0V
mA
µA
mA
mA
mA
mA
mA
I
I
IH
= MAX, V = 2.7V
20
I
E, CP
–0.1
–0.2
–112
18
I
IL
Low-level input current
Dn
V
CC
V
CC
V
CC
= MAX, V = 0.4V
I
3
I
O
Output current
= MAX, V = 2.25V
–30
O
I
12
20
CCH
I
Supply current (total)
= MAX
CC
I
29
CCL
NOTES:
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 = 5V, T = 25°C.
CC
amb
3. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
4
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip-flop with enable
74ALS377
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
SYMBOL
PARAMETER
TEST CONDITION
UNIT
C = 50pF, R = 500Ω
L
L
MIN
65
MAX
f
Maximum clock frequency
Waveform 1
Waveform 1
MHz
ns
MAX
t
t
Propagation delay
CP to Qn
2.0
3.0
8.0
11.0
PLH
PHL
AC SETUP REQUIREMENTS
LIMITS
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
SYMBOL
PARAMETER
TEST CONDITION
UNIT
C = 50pF, R = 500Ω
L
L
MIN
MAX
t
t
(H)
Setup time, High or Low
Dn to CP
5.0
5.0
su
Waveform 2
Waveform 2
Waveform 2
Waveform 2
Waveform 1
ns
ns
ns
ns
ns
(L)
su
t (H)
Hold time, High or Low
Dn to CP
0.0
0.0
h
h
t (L)
t
su
(H)
Setup time, High or Low
E to CP
1.0
1.0
t
(L)
su
t (H)
Hold time, High or Low
E to CP
3.0
3.0
h
h
t (L)
t (H)
t (L)
CP pulse width,
High or Low
6.0
8.0
w
w
AC WAVEFORMS
For all waveforms, V = 1.3V.
M
The shaded areas indicate when the input is permitted to change for predictable output performance.
1/f
max
V
Dn
E
V
M
M
CP
Qn
V
V
V
M
M
M
t
(H)
w
t
su
t
h
t
t
w
(L)
t
PLH
PHL
V
V
V
V
V
M
M
M
M
M
V
V
M
M
t
h
= 0
t (L)
su
t (H)
su
t
= 0
M
h
SF00294
Waveform 1. Propagation Delay for Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
CP
V
SC00076
Waveform 2. Data and Enable Setup and Hold Times
5
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip-flop with enable
74ALS377
TEST CIRCUIT AND WAVEFORMS
t
w
AMP (V)
90%
V
CC
90%
NEGATIVE
PULSE
V
V
M
M
10%
10%
V
V
OUT
IN
0.3V
PULSE
GENERATOR
D.U.T.
t
t )
f
t
t )
THL ( f
TLH ( r
R
C
R
L
T
L
t
t )
t
t )
TLH ( r
THL ( f
AMP (V)
90%
M
90%
POSITIVE
PULSE
V
V
M
Test Circuit for Totem-pole Outputs
10%
10%
0.3V
t
w
Input Pulse Definition
DEFINITIONS:
R
L
C
L
R
T
=
=
=
Load resistor;
INPUT PULSE REQUIREMENTS
V
see AC electrical characteristics for value.
Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
Termination resistance should be equal to Z
pulse generators.
Family
Rep.Rate
t
w
t
t
THL
Amplitude
M
TLH
2.0ns
2.0ns
of
74ALS
3.5V
1.3V
1MHz
500ns
OUT
SC00005
6
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip–flop with enable
74ALS377
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
7
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip–flop with enable
74ALS377
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
8
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip–flop with enable
74ALS377
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
9
1991 Feb 08
Philips Semiconductors
Product specification
Octal D flip–flop with enable
74ALS377
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
Preproduction Product
Full Production
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Preliminary Specification
Product Specification
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.
Philips Semiconductors and Philips Electronics North America Corporation reserve 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. Applications that are described herein for any of these products are for illustrative purposes
only. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1997
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips
Semiconductors
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