Specification	SN74LS93D

Count Rate	42 MHz
Direction	Up
Logic Type	Binary Counter
Mounting Type	Surface Mount
Number of Bits per Element	4
Number of Elements	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	14-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Reset	Asynchronous
Trigger Type	Negative Edge
Voltage - Supply [Max]	5.25 V
Voltage - Supply [Min]	4.75 V

SN74LS93 Series

4-Bit Binary Counters

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Direction	Trigger Type	Count Rate	Package / Case [x]	Package / Case [y]	Package / Case	Logic Type	Number of Bits per Element	Number of Elements	Operating Temperature [Max]	Reset	Mounting Type	Supplier Device Package
Texas Instruments SN74LS93D	4.75 V	5.25 V	Up	Negative Edge	42 MHz	0.154 in	3.9 mm	14-SOIC	Binary Counter	4	1	70 °C	Asynchronous	Surface Mount
Texas Instruments SN74LS93NSR	4.75 V	5.25 V	Up	Negative Edge	42 MHz	0.209 "	5.3 mm	14-SOIC	Binary Counter	4	1	70 °C	Asynchronous	Surface Mount	14-SO
Texas Instruments SN74LS93DRE4	4.75 V	5.25 V	Up	Negative Edge	42 MHz	0.154 in	3.9 mm	14-SOIC	Binary Counter	4	1	70 °C	Asynchronous	Surface Mount
Texas Instruments SN74LS93DR	4.75 V	5.25 V	Up	Negative Edge	42 MHz	0.154 in	3.9 mm	14-SOIC	Binary Counter	4	1	70 °C	Asynchronous	Surface Mount
Texas Instruments SN74LS93N	4.75 V	5.25 V	Up	Negative Edge	42 MHz	0.3 "	7.62 mm	14-DIP	Binary Counter	4	1	70 °C	Asynchronous	Through Hole

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	$ 2.68
		10	$ 2.40
		50	$ 2.27
		100	$ 1.97
		250	$ 1.87
		500	$ 1.68
		1000	$ 1.41
		2500	$ 1.34
		5000	$ 1.29
Texas Instruments	TUBE	1	$ 2.32
		100	$ 2.04
		250	$ 1.43
		1000	$ 1.15

Description

General part information

SN74LS93 Series

Each of these monolithic counters contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and a three-stage binary counter for which the count cycle length is divide-by-five for the '90A and 'LS90, divide-by-six for the '92A and 'LS92, and the divide-by eight for the '93A and 'LS93.

All of these counters have a gated zero reset and the '90A and 'LS90 also have gated set-to-nine inputs for use in BCD nine's complement applications.

To use their maximum count length (decade, divide-by-twelve, or four-bit binary) of these counters, the CKB input is connected to the QAoutput. The input count pulses are applied to CKA input and the outputs are as described in the appropriate function table. A symmetrical divide-by-ten count can be obtained from the '90A or 'LS90 counters by connecting the QDoutput to the CKA input and applying the input count to the CKB input which gives a divide-by-ten square wave at output QA.

Documents

Technical documentation and resources

Decade, Divide-by-Twelve And Binary Counters datasheet (Rev. A)

Data sheet