74ACT161SCX Fairchild Semiconductor, 74ACT161SCX Datasheet

IC COUNTER BINARY SYNC 16SOIC

74ACT161SCX

Manufacturer Part Number
74ACT161SCX
Description
IC COUNTER BINARY SYNC 16SOIC
Manufacturer
Fairchild Semiconductor
Series
74ACTr
Datasheet

Specifications of 74ACT161SCX

Logic Type
Binary Counter
Direction
Up
Number Of Elements
1
Number Of Bits Per Element
4
Reset
Asynchronous
Timing
Synchronous
Count Rate
125MHz
Trigger Type
Positive Edge
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Dc
0024
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
© 2003 Fairchild Semiconductor Corporation
74AC161SC
74AC161SJ
74AC161MTC
74AC161PC
74ACT161SC
74ACT161SJ
74ACT161MTC
74ACT161PC
74AC161 • 74ACT161
Synchronous Presettable Binary Counter
General Description
The AC/ACT161 are high-speed synchronous modulo-16
binary counters. They are synchronously presettable for
application in programmable dividers and have two types
of Count Enable inputs plus a Terminal Count output for
versatility in forming synchronous multistage counters. The
AC/ACT161 has an asynchronous Master Reset input that
overrides all other inputs and forces the outputs LOW.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
FACT
Order Number
is a trademark of Fairchild Semiconductor Corporation.
Package Number
MTC16
MTC16
IEEE/IEC
M16A
M16D
M16A
M16D
N16E
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
DS009931
Features
Connection Diagram
Pin Descriptions
CEP
CET
CP
MR
P
PE
Q
TC
I
Synchronous counting and loading
High-speed synchronous expansion
Typical count rate of 125 MHz
Outputs source/sink 24 mA
ACT161 has TTL-compatible inputs
0
0
CC
Pin Names
–P
–Q
reduced by 50%
3
3
Package Description
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input
Asynchronous Master Reset Input
Parallel Data Inputs
Parallel Enable Inputs
Flip-Flop Outputs
Terminal Count Output
November 1988
Revised September 2003
Description
www.fairchildsemi.com

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74ACT161SCX Summary of contents

Page 1

... Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols IEEE/IEC FACT is a trademark of Fairchild Semiconductor Corporation. © 2003 Fairchild Semiconductor Corporation Features I reduced by 50% ...

Page 2

Functional Description The AC/ACT161 count in modulo-16 binary sequence. From state 15 (HHHH) they increment to state 0 (LLLL). The clock inputs of all flip-flops are driven in parallel through a clock buffer. Thus all changes of the Q outputs ...

Page 3

Block Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 3 www.fairchildsemi.com ...

Page 4

Absolute Maximum Ratings Supply Voltage ( Input Diode Current ( 0. 0. Input Voltage ( Output Diode Current ( ...

Page 5

DC Electrical Characteristics for ACT V Symbol Parameter V Minimum HIGH Level IH Input Voltage V Maximum LOW Level IL Input Voltage V Minimum HIGH Level OH Output Voltage V Maximum LOW Level OL Output Voltage I Maximum Input IN ...

Page 6

AC Operating Requirements for AC Symbol Parameter t Setup Time, HIGH or LOW Hold Time, HIGH or LOW Setup Time, HIGH or LOW ...

Page 7

AC Operating Requirements for ACT Symbol Parameter t Setup Time, HIGH or LOW Hold Time, HIGH or LOW Setup Time, HIGH or LOW ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow www.fairchildsemi.com Package Number M16A 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16D 9 www.fairchildsemi.com ...

Page 10

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide www.fairchildsemi.com Package Number MTC16 10 ...

Page 11

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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