Specification	SN54197J

Count Rate	70 MHz
Direction	Up
Logic Type	Binary Counter
Mounting Type	Through Hole
Number of Bits per Element	4
Number of Elements	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	14-CDIP
Reset	Asynchronous
Supplier Device Package	14-CDIP
Trigger Type	Negative Edge
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN54197 Series

50/30/100-Mhz Presettable Decade OR Binary Counters/Latches

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Elements	Count Rate	Reset	Trigger Type	Package / Case	Number of Bits per Element	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Logic Type	Direction	Mounting Type
Texas Instruments SN54197J	4.5 V	5.5 V	1	70 MHz	Asynchronous	Negative Edge	14-CDIP	4	14-CDIP	125 °C	-55 °C	Binary Counter	Up	Through Hole

Pricing

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

Distributor	Package	Quantity	$

Texas Instruments	TUBE	1	$ 13.75
		100	$ 12.01
		250	$ 9.26
		1000	$ 8.28

Description

General part information

SN54197 Series

These high-speed monolithic counters consist of four d-c coupled, master-slave flip-flops, which are internally interconnected to provide either a divide-by-two and a divide-by-five counter (’196, ’LS196, ’S196) or a divide-by-two and a divide-by-eight counter (’197, ’LS197, ’S197). These four counters are fully programmable; that is, the outputs may be preset to any state by placing a low on the count/load input and entering the desired data at the data inputs. The outputs will change to agree with the data inputs independent of the state of the clocks.

During the count operation, transfer of information to the outputs occurs on the negative-going edge of the clock pulse. These counters feature a direct clear which when taken low sets all outputs low regardless of the states of the clocks.

These counters may also be used as 4-bit latches by using the count/load input as the strobe and entering data at the data inputs. The outputs will directly follow the data inputs when the count/load is low, but will remain unchanged when the count/load is high and the clock inputs are inactive.

Documents

Technical documentation and resources

50/30/100-MHz Presettable Decade Or Binary Counters/Latches datasheet (Rev. A)

Data sheet