SN74LS684DW

Texas Instruments

0℃~+70℃ 100uA 2 25ns 400mV 400mV 65mA Built-in hysteresis TTL SOIC-20-300mil Digital Comparators ROHS

Extended

Datasheetti/SN74LS684DW

Category: Comparators
Package: SOIC-20-300mil
Pins: 20

Overview

The SN74LS684DW is a comparator made by Texas Instruments in a SOIC-20-300mil package with 20 pins. 0℃~+70℃ 100uA 2 25ns 400mV 400mV 65mA Built-in hysteresis TTL SOIC-20-300mil Digital Comparators ROHS.

PCBKit's library has its KiCad symbol (74xx_IEEE:74LS684, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1523731).

Symbol

74xx_IEEE:74LS684From KiCad's library

Footprint

Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

Parameters

Current - Output High(IOH): 400uA
Current - Output Low(IOL): 24mA
Features: Built-in hysteresis
Ib - Input Bias Current: 100uA
Input Hysteresis Voltage (Vhys): 400mV
Number of Channels: 2
Operating Temperature: 0℃~+70℃
Output: Active Low
Output Function: A=B,A>B
Output Mode: TTL
Propagation Delay: 30ns@5V,45pF
Propagation Delay Time: 25ns
Quiescent Current: 65mA
Voltage - Supply: 4.85V~5.25V
Vos - Input Offset Voltage: 400mV

Order codes

SN74LS684DWLCSC C1523731
SN74LS684DWRLCSC C2653332

Pinout

The pins of the SN74LS684DW
Pin	Name	Type
1	P>Q	Output
2	P0	Input
3	Q0	Input
4	P1	Input
5	Q1	Input
6	P2	Input
7	Q2	Input
8	P3	Input
9	Q3	Input
10	GND	Power in
11	P4	Input
12	Q4	Input
13	P5	Input
14	Q5	Input
15	P6	Input
16	Q6	Input
17	P7	Input
18	Q7	Input
19	P=Q	Output
20	VCC	Power in

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A picture

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A picture that opens the part, for a README

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Questions

Is there a KiCad symbol and footprint for the SN74LS684DW?

Yes. The symbol is 74xx_IEEE:74LS684 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74LS684DW?

SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.

Where is the SN74LS684DW datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the SN74LS684DW?

JLCPCB lists it as part C1523731, with 0 in stock; the sellers' links on this page open their listings.