Texas Instruments CD54HC21
This device contains two independent 4-input AND gates. Each gate performs the Boolean function Y = A ● B ● C ● D in positive logic.- Min Voltage : 2V
- Max Voltage : 6V
- Max Operating Temp : 125°C
- Min Operating Temp : -55°C
Source:
Octopart
FEATURES
3DESCRIPTION
● Buffered inputs● Wide operating voltage range: 2 V to 6 V
● Wide operating temperature range: -55°C to +125°C
● Supports fanout up to 10 LSTTL loads
● Significant power reduction compared to LSTTL logic ICs 2
APPLICATIONS
● Combining power good signals● Enable digital signals Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) CD74HC21M SOIC (14) 8.70 mm × 3.90 mm CD74HC21E PDIP (14) 19.30 mm × 6.40 mm CD54HC21F CDIP (14) 21.30 mm × 7.60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. 1 1A 2 1B 3 NC 4 1C 5 1D 6 1Y 7 GND 14 VCC 13 2D 12 2C 11 NC 10 2B 9 2A 8 2Y Functional pinout An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. CD74HC21, CD54HC21 SCHS131D – AUGUST 1997 – REVISED MAY 2021 Table of Contents 1
FEATURES
............................................................................1 2APPLICATIONS
.....................................................................