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54AC163 Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer 54AC163
Beschreibung Synchronous Presettable Binary Counter
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 12 Seiten
54AC163 Datasheet, Funktion
www.DataSheet4U.com
November 1998
54AC163 54ACT163
Synchronous Presettable Binary Counter
General Description
The ’AC/’ACT163 are high-speed synchronous modulo-16
binary counters. They are synchronously presettable for ap-
plication in programmable dividers and have two types of
Count Enable inputs plus a Terminal Count output for versa-
tility in forming synchronous multistage counters. The ’AC/
’ACT163 has a Synchronous Reset input that overrides
counting and parallel loading and allows the outputs to be si-
multaneously reset on the rising edge of the clock.
n Synchronous counting and loading
n High-speed synchronous expansion
n Typical count rate of 125 MHz
n Outputs source/sink 24 mA
n ’ACT163 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC163: 5962-89582
— ’ACT163: 5962-91723
Features
n ICC reduced by 50%
Logic Symbols
DS100275-1
Pin
Names
CEP
CET
CP
SR
P0– P3
PE
Q0– Q3
TC
Description
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input
Synchronous Reset Input
Parallel Data Inputs
Parallel Enable Input
Flip-Flop Outputs
Terminal Count Output
IEEE/IEC
DS100275-2
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100275
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54AC163 Datasheet, Funktion
DC Characteristics for ’AC Family Devices (Continued)
Symbol
Parameter
ICC Maximum Quiescent
Supply Current
54AC
VCC
TA =
(V) −55˚C to +125˚C
Guaranteed
Limits
5.5 160
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
ICC for 54AC @ 25˚C is identical to 74AC @ 25˚C.
Units
µA
Conditions
VIN = VCC
or GND
DC Characteristics for ’ACT Family Devices
Symbol
VIH
VIL
VOH
VOL
IIN
ICCT
IOLD
IOHD
ICC
Parameter
VCC
(V)
Minimum High Level
Input Voltage (Note 7)
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
4.5
5.5
4.5
5.5
4.5
5.5
Maximum Low Level
Output Voltage
4.5
5.5
4.5
5.5
Maximum Input
Leakage Current
Maximum
ICC/Input
Minimum Dynamic
Output Current (Note 6)
Maximum Quiescent
Supply Current
4.5
5.5
5.5
5.5
5.5
5.5
5.5
54ACT
TA =
−55˚C to +125˚C
Guaranteed
Limits
3.0
3.0
0.8
0.8
4.4
5.4
3.70
4.70
0.1
0.1
0.50
0.50
±1.0
1.6
50
−50
80.0
Units
V
V
V
V
V
V
µA
mA
mA
mA
µA
Conditions
VOUT = 0.1V
or VCC − 0.1V
VOUT = 0.1V
or VCC − 0.1V
IOUT = −50 µA
(Note 5)
VIN = VIL or 3.0V
IOH = −24 mA
IOH = −24 mA
IOUT = 50 µA
(Note 5)
VIN = VIL or VIH
IOL = 24 mA
IOL = 24 mA
VI = VCC, GND
VI = VCC − 2.1V
VOLD = 1.65V Max
VOHD = 3.85V Min
VIN = VCC
or GND
Note 5: All outputs loaded; thresholds on input associated with output under test.
Note 6: Maximum test duration 2.0 ms, one output loaded at a time.
Note 7: For dynamic operation, a VIH level between 2.0 and 3.0V may be recognized by this device as a high logic level input. For static operation, a VIH 2.0V will
be recognized by this device as a high logic level input. Users are cautioned to verify that this will not affect their system.
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54AC163 pdf, datenblatt
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Ceramic Flatpak (F)
NS Package Number W16A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE-
VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-
CONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or sys- 2. A critical component in any component of a life support
tems which, (a) are intended for surgical implant into
device or system whose failure to perform can be rea-
the body, or (b) support or sustain life, and whose fail-
sonably expected to cause the failure of the life support
ure to perform when properly used in accordance
device or system, or to affect its safety or effectiveness.
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
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Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
www.national.com
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Fax: +49 (0) 1 80-530 85 86
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National Semiconductor
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

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