Integrated Circuits (ICs) > Logic ICs > Counters > SN74F161ADR

SN74F161ADR

Texas Instruments

Part Number:	SN74F161ADR
Manufacturer:	Texas Instruments
Part Type:	Integrated Circuits (ICs) > Logic ICs > Counters > SN74F161ADR
Qty Available:
Description:	Synchronous 4-Bit Binary Counter 16-SOIC 0 to 70

Get Quote

04/24/2026 – There are 515 pieces pieces of Part Number SN74F161ADR Available.

PCX has Texas Instruments Integrated Circuits (ICs) > Logic ICs > Counters > SN74F161ADR Electronic Components for Sale.

Pacific Component Xchange specializes in solving challenges such as supply chain procurement, hard to find, long lead time, obsolete, cost savings, kanban and scheduled orders.

Synchronous 4-Bit Binary Counter 16-SOIC 0 to 70

Specifications

TYPE	DESCRIPTION
Case/Package	SOIC
Mount	Surface Mount
Number of Pins	16
Weight	141.690917 mg
Clock Edge Trigger Type	Positive Edge
Direction	Unidirectional
Frequency	120 MHz
Logic Function	Counter
Max Operating Temperature	70 °C
Max Supply Voltage	5.5 V
Min Operating Temperature	0 °C
Min Supply Voltage	4.5 V
Number of Bits	4
Number of Bits per Element	4
Number of Elements	1
Operating Supply Voltage	5 V
Packaging	Tape & Reel
Propagation Delay	15 ns
Reset	Asynchronous
Schedule B	8542390000
Sync/Async	Synchronous
Turn-On Delay Time	15 ns
Height	1.75 mm
Length	9.9 mm
Thickness	1.58 mm
Width	3.91 mm

Images

Documentation for Texas Instruments SN74F161ADR

Datasheet	View & Download SN74F161ADR Datasheet
Technical Drawing	View & Download SN74F161ADR Technical Drawing
Datasheet	View & Download SN74F161ADR Datasheet
Datasheet	View & Download SN74F161ADR Datasheet
Datasheet	View & Download SN74F161ADR Datasheet
Datasheet	View & Download SN74F161ADR Datasheet
Datasheet	View & Download SN74F161ADR Datasheet
Datasheet	View & Download SN74F161ADR Datasheet

Alternate Descriptions

Descriptions of Texas Instruments SN74F161ADR provided by its distributors.
Synchronous 4-Bit Binary Counter 16-SOIC 0 to 70
Counter Single 4-Bit Sync Binary UP 16-Pin SOIC T/R
IC, 4BIT BINARY COUNTER, SYNC, SOIC-16, FULL REEL
Binary Counter, F/FAST Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PDSO16
IC BINARY COUNTER 4-BIT 16SOIC
IC SYNC 4BIT BINRY COUNTR 16SOIC
French Electronic Distributor since 1988
This synchronous, presettable, 4-bit binary counter has internal carry look-ahead circuitry for use 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 are normally associated with asynchronous (ripple-clock) counters. However, counting spikes can occur on the ripple-carry (RCO) output. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of CLK. This counter is fully programmable. That is, it can be preset to any number between 0 and 15. Because presetting is synchronous, a low logic level at the load (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 ENP and ENT. The clear function is asynchronous, and a low logic level at the clear (CLR) input sets all four of the flip-flop outputs to low, regardless of the levels of CLK, LOAD, ENP, and ENT. The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications, without additional gating. This function is implemented by the ENP and ENT inputs and an RCO output. Both ENP and ENT must be high to count, and ENT is fed forward to enable RCO. RCO, thus enabled, produces ahigh-logic-level pulse while the count is 15 (HHHH). The high-logic-level overflow ripple-carry pulse can be used to enable successive cascaded stages. Transitions at ENP or ENT are allowed, regardless of the level of CLK. The SN74F161A features a fully independent clock circuit. Changes at ENP, ENT, or LOAD that modify the operating mode have no effect on the contents of the counter until clocking occurs. The function of the counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the setup and hold times.

SN74F161ADR

Texas Instruments

Specifications

Images

Documentation for Texas Instruments SN74F161ADR

Alternate Descriptions

Title

FAQ’s

What is the equivalent part number for Texas Instruments SN74F161ADR?

What is the package type of Texas Instruments SN74F161ADR?

What is the voltage range for Texas Instruments SN74F161ADR?

What is the logic function of Texas Instruments SN74F161ADR?

Electronic Component Search