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 74HC20; 74HCT20 is a dual 4-input NAND 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
Complies with JEDEC standard JESD7A
Low-power dissipation
Input levels:
For 74HC20: CMOS level
For 74HCT20: TTL level
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 Cto+80C and from 40 Cto+125C.
3. Ordering information
74HC20; 74HCT20
Dual 4-input NAND gate
Rev. 4 — 18 November 2015 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC20D 40 C to +125 C SO14 plastic small outline package; 14 leads; body width
3.9 mm
SOT108-1
74HCT20D
74HC20DB 40 C to +125 C SSOP14 plastic shrink small outline package; 14 leads; body
width 5.3 mm
SOT337-1
74HCT20DB
74HC20PW 40 C to +125 C TSSOP14 plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
SOT402-1
74HCT20PW
74HC_HCT20 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 4 — 18 November 2015 2 of 15
NXP Semiconductors
74HC20; 74HCT20
Dual 4-input NAND gate
4. Functional diagram
5. Pinning information
5.1 Pinning
Fig 1. Functional diagram Fig 2. Logic symbol
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74HCT20DB,112

Mfr. #:
Manufacturer:
Nexperia
Description:
Logic Gates DUAL 4-INPUT NAND
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union