74HC191N - NXP

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

74HC191N
Manufacturer

NXP
ChipWorker Part#

CW151382571
Category

Counter, Counter IC
Package

DIP
Description

IC, 74HC CMOS, 74HC191, DIP16, 5V
Documentation

Datasheet

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74HC191N Specifications

Attribute	Attribute Value

Part Number	74HC191N
Manufacturer	NXP
ChipWorker Part#	CW151382571
Category	Counter, Counter IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	16 Pin
Case/Package	DIP
Supply Voltage (DC)	5.00 V, 6.00 V (max)
Number of Positions	16 Position
Clock Speed	39 MHz
Number of Bits	4 Bit
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage (Max)	6 V
Supply Voltage (Min)	2 V
	expand all
Size-Length	19.5 mm
Size-Width	6.48 mm
Size-Height	3.2 mm
Product Lifecycle Status	Unknown
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17

Product Description

The 74HC191N is a presettable synchronous 4-bit binary Up/Down Counter, pin compatible with low power Schottky TTL (LSTTL). It is asynchronously presettable 4-bit binary up/down counters. They contain four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation. Asynchronous parallel load capability permits the counter to be preset to any desired number. Information present on the parallel data inputs (D0 to D3) is loaded into the counter and appears on the outputs when the parallel load (PL\\) input is low. Counting is inhibited by a HIGH level on the count enable (CE\\) input. When CE\ is low internal state changes are initiated synchronously by the low-to-high transition of the clock input. The up/down (U\/D) input signal determines the direction of counting. The CE input may go low when the clock is in either state, however, the low-to-high CE\ transition must occur only when the clock is high.
Synchronous reversible counting
Count enable control for synchronous expansion
Single up/down control input
Standard Output capability
ICC Category

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