NXP Semiconductors
4. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC7403N 40 C to +125 C DIP16
74HCT7403N
74HC7403D 40 C to +125 C SO16
74HCT7403D
5. Functional diagram
74HC7403; 74HCT7403
4-bit x 64-word FIFO register; 3-state
Description
plastic dual in-line package; 16 leads (300 mil)
plastic small outline package; 16 leads;
body width 3.9 mm
Version
SOT38-4
SOT109-1
2(
'
4
'
4
'
4
'
4
6,
'25
62
',5
05
PJD
Fig 1. Logic symbol
),)2 [
(1
>,5@
=
>25@
&75
&
&7
&7 *
&7! *
=
'
PJD
Fig 2. IEC logic symbol
6,
',5
'$7$ ,1387
05
2(
Fig 3. Functional diagram
'25$
62$
6,$
',5$ ),)2 $ 4Q$
'Q$
05
2(
6,%
'25%
',5%
62%
4Q%
'Q% ),)2 %
'25
62
'$7$ 287387
05
2(
PJD
74HC_HCT7403
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 24 September 2012
© NXP B.V. 2012. All rights reserved.
2 of 34