Specification	SN74LV161AD

Count Rate	95 MHz
Direction	Up
Logic Type	Binary Counter
Mounting Type	Surface Mount
Number of Bits per Element	4
Number of Elements	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	16-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Reset	Asynchronous
Supplier Device Package	16-SOIC
Timing	Synchronous
Trigger Type	Positive Edge
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V

SN74LV161A Series

4-Bit Synchronous Binary Counters

Part	Reset	Number of Bits per Element	Mounting Type	Package / Case	Package / Case [x]	Package / Case [y]	Voltage - Supply [Min]	Voltage - Supply [Max]	Count Rate	Supplier Device Package	Trigger Type	Logic Type	Direction	Number of Elements	Timing	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [custom]	Package / Case [custom]
Texas Instruments SN74LV161AD	Asynchronous	4	Surface Mount	16-SOIC	0.154 in	3.9 mm	2 V	5.5 V	95 MHz	16-SOIC	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C
Texas Instruments SN74LV161ADR	Asynchronous	4	Surface Mount	16-SOIC	0.154 in	3.9 mm	2 V	5.5 V	95 MHz	16-SOIC	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C
Texas Instruments SN74LV161ADGVR	Asynchronous	4	Surface Mount	16-TFSOP	0.173 in	4.4 mm	2 V	5.5 V	95 MHz	16-TVSOP	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C
Texas Instruments SN74LV161ADBR	Asynchronous	4	Surface Mount	16-SSOP			2 V	5.5 V	95 MHz	16-SSOP	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C	0.209 in	5.3 mm
Texas Instruments SN74LV161APWRG4	Asynchronous	4	Surface Mount	16-TSSOP	0.173 in	4.4 mm	2 V	5.5 V	95 MHz	16-TSSOP	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C
Texas Instruments SN74LV161APWRE4	Asynchronous	4	Surface Mount	16-TSSOP	0.173 in	4.4 mm	2 V	5.5 V	95 MHz	16-TSSOP	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C
Texas Instruments SN74LV161APWT	Asynchronous	4	Surface Mount	16-TSSOP	0.173 in	4.4 mm	2 V	5.5 V	95 MHz	16-TSSOP	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C
Texas Instruments SN74LV161APW	Asynchronous	4	Surface Mount	16-TSSOP	0.173 in	4.4 mm	2 V	5.5 V	95 MHz	16-TSSOP	Positive Edge	Binary Counter	Up	1	Synchronous	85 °C	-40 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.08
		10	$ 0.96
		40	$ 0.91
		120	$ 0.75
		280	$ 0.70
		520	$ 0.62
		1000	$ 0.49
Texas Instruments	TUBE	1	$ 0.80
		100	$ 0.61
		250	$ 0.45
		1000	$ 0.32

Description

General part information

SN74LV161A Series

The ’LV161A devices are 4-bit synchronous binary counters designed for 2-V to 5.5-V VCCoperation.

These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output counting spikes that normally are associated with synchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform.

These counters are fully programmable; that is, they can be preset to any number between 0 and 9 or 15. As presetting is synchronous, setting up a low level at the load input disables the counter and causes the outputs to agree with the setup data after the next clock pulse, regardless of the levels of the enable inputs.

Documents

Technical documentation and resources

SN54LV161A, SN74LV161A datasheet (Rev. F)

Data sheet