Important notice
Dear Customer,
On 7 February 2017 the former NXP Standard Product business became a new company with the
tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS
semiconductors with its focus on the automotive, industrial, computing, consumer and wearable
application markets
In data sheets and application notes which still contain NXP or Philips Semiconductors references, use
the references to Nexperia, as shown below.
Instead of http://www.nxp.com, http://www.philips.com/ or http://www.semiconductors.philips.com/,
use http://www.nexperia.com
Instead of sales.addresses@www.nxp.com or sales.addresses@www.semiconductors.philips.com, use
salesaddresses@nexperia.com (email)
Replace the copyright notice at the bottom of each page or elsewhere in the document, depending on
the version, as shown below:
- © NXP N.V. (year). All rights reserved or © Koninklijke Philips Electronics N.V. (year). All rights
reserved
Should be replaced with:
- © Nexperia B.V. (year). All rights reserved.
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail
or telephone (details via salesaddresses@nexperia.com). Thank you for your cooperation and
understanding,
Kind regards,
Team Nexperia
1. General description
The 74HC21 is a dual 4-input AND gate. Inputs include clamp diodes. This enables the
use of current limiting resistors to interface inputs to voltages in excess of V
CC
.
2. Features and benefits
Low-power dissipation
Complies with JEDEC standard no. 7A
ESD protection:
HBM JESD22-A114E exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 Cto+85C and from 40 Cto+125C.
3. Ordering information
74HC21
Dual 4-input AND gate
Rev. 7 — 30 November 2015 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC21D 40 C to +125 C SO14 plastic small outline package; 14 leads;
body width 3.9 mm
SOT108-1
74HC21DB 40 C to +125 C SSOP14 plastic shrink small outline package; 14 leads;
body width 5.3 mm
SOT337-1
74HC21PW 40 C to +125 C TSSOP14 plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
SOT402-1
74HC21 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 7 — 30 November 2015 2 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
4. Functional diagram
5. Pinning information
5.1 Pinning
Fig 1. Functional diagram Fig 2. Logic symbol
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Fig 3. IEC Logic symbol Fig 4. Logic diagram
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Fig 5. Pin configuration SOT108-1 Fig 6. Pin configuration SOT337-1 and SOT402-1
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74HC21PW,118

Mfr. #:
Manufacturer:
Nexperia
Description:
Logic Gates AND 2CIRCUIT 6V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union