74LS161DC

Texas Instruments

0℃~+70℃ 14ns 32MHz 4 4.75V~5.25V 74LS 93mW Asynchronous Binary Counter Programmable divide ratio、Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous - Counters, Dividers

Extended

ti/74LS161DC

Category: Counters, Dividers
Pins: 16

Overview

The 74LS161DC is a counters, Divider made by Texas Instruments with 16 pins. 0℃~+70℃ 14ns 32MHz 4 4.75V~5.25V 74LS 93mW Asynchronous Binary Counter Programmable divide ratio、Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous - Counters, Dividers.

PCBKit's library has its KiCad symbol (74xx_IEEE:74LS161, from KiCad's library) and its footprint (EasyEDA_Cloud:SOP-16_L10.0-W3.9-P1.27-LS6.0-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3828767). 117 open-source boards in 90 repositories on GitHub use it.

Symbol

74xx_IEEE:74LS161From KiCad's library

Footprint

EasyEDA_Cloud:SOP-16_L10.0-W3.9-P1.27-LS6.0-BLFrom EasyEDA

Parameters

Count Rate: 32MHz
Features: Programmable divide ratio；Reset function；Cascade counter；Synchronous counting
Logic Type: Binary Counter
Operating Temperature: 0℃~+70℃
Power Dissipation: 93mW
Propagation Delay: 14ns
Reset: Asynchronous
Resolution: 4
Series: 74LS
Timing: Synchronous
Trigger Type: Rising Edge
Voltage - Supply: 4.75V~5.25V

Order codes

74LS161DCLCSC C3828767

Pinout

The pins of the 74LS161DC
Pin	Name	Type
1	MR	Input
2	CK	Input
3	P0	Input
4	P1	Input
5	P2	Input
6	P3	Input
7	ENP	Input
8	GND	Power in
9	Pe	Input
10	ENT	Input
11	Q3	Output
12	Q2	Output
13	Q1	Output
14	Q0	Output
15	Tc	Output
16	VCC	Power in

Open-source boards using it

All 117

2 layers237.5 × 102.9 mm
Instruction
jes/scamp-cpu
A homebrew 16-bit CPU with a homebrew Unix-like-ish operating system.
112 parts301Unlicense
2 layers365.1 × 203.2 mm
DIAG
Nakazoto/CenturionComputer
This is just a simple backup of all the files related to the Centurion that I have stored on my HD. The Wiki itself has far more in-depth information about the Centurion and it's individual cards.
150 parts172
2 layers370.8 × 298.5 mm
8 Bit Computer
The-Invent0r/8-bit-Computer-PCB
These are the KiCAD files for my 8-Bit Computer.
323 parts142
2 layers134.6 × 208.3 mm
Ts2
jefftranter/68000
Code related to the Motorola 68000 microprocessor.
110 parts133
2 layers155.2 × 78.6 mm
80ColumnCard
btb/80ColumnCard
An Apple II 80-Column Card. Based on the Videx Videoterm
47 parts43Apache-2.0
4 layers170 × 181 mm
3ric
ebadger/3ric
3ric homebrew computer repository
150 parts32
2 layers
Sap be
kyllikki/eda-designs
EDA designs
148 parts32MIT
2 layers157.5 × 73.9 mm
8086 ISA ver2
homebrew8088/8086-PC-Compatible
8086 PC Compatible
50 parts27GPL-3.0

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A picture

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A picture that opens the part, for a README

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Questions

Is there a KiCad symbol and footprint for the 74LS161DC?

Yes. The symbol is 74xx_IEEE:74LS161 and the footprint EasyEDA_Cloud:SOP-16_L10.0-W3.9-P1.27-LS6.0-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

Where can I order the 74LS161DC?

JLCPCB lists it as part C3828767, with 0 in stock; the sellers' links on this page open their listings.

Which open-source boards use the 74LS161DC?

117 boards in 90 repositories on GitHub; the most starred are listed on this page, with their KiCad files.