74act161scx-nl Fairchild Semiconductor, 74act161scx-nl Datasheet

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74act161scx-nl

Manufacturer Part Number
74act161scx-nl
Description
74ac161 * 74act161 Synchronous Presettable Binary Counter
Manufacturer
Fairchild Semiconductor
Datasheet
© 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-nl 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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