DATA SHEET
SNx4HC20 Dual 4-Input NAND Gates
1 Features
- Buffered inputs
- Wide operating voltage range: 2 V to 6 V
- Wide operating temperature range:
–40°C to +85°C - Supports fanout up to 10 LSTTL loads
- Significant power reduction compared to LSTTL logic ICs
2 Applications
- Alarm / tamper detect circuit
- S-R latch
3 Description
This device contains two independent 4-input NAND gates. Each gate performs the Boolean function Y = A ● B ● C ● D in positive logic.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| SN74HC20D | SOIC (14) | 8.70 mm × 3.90 mm |
| SN74HC20N | PDIP (14) | 19.30 mm × 6.40 mm |
| SN74HC20NS | SO (14) | 10.20 mm × 5.30 mm |
| SN74HC20PW | TSSOP (14) | 5.00 mm × 4.40 mm |
| SN54HC20J | CDIP (14) | 21.30 mm × 7.60 mm |
| SN54HC20W | CFP (14) | 9.20 mm × 6.29 mm |
| SN54HC20FK | LCCC (20) | 8.90 mm × 8.90 mm |
(1) For all available packages, see the orderable addendum at the
end of the data sheet.
Functional pinout4 Revision History
Changes from Revision F (August 2003) to Revision G (April 2021)
