74HCT7403D,518 NXP Semiconductors, 74HCT7403D,518 Datasheet - Page 22
![IC FIFO REGISTER 64X4 3ST 16SOIC](/photos/6/64/66482/16-soic_sot162-1_sml.jpg)
74HCT7403D,518
Manufacturer Part Number
74HCT7403D,518
Description
IC FIFO REGISTER 64X4 3ST 16SOIC
Manufacturer
NXP Semiconductors
Series
74HCTr
Datasheet
1.74HCT7403N112.pdf
(28 pages)
Specifications of 74HCT7403D,518
Function
Asynchronous, Synchronous
Memory Size
256 (64 x 4)
Data Rate
15MHz
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Access Time
-
Other names
74HCT7403D-T
74HCT7403D-T
933999390518
74HCT7403D-T
933999390518
Philips Semiconductors
Note to Fig.18
The “7403” is easily expanded to increase word length. Composite DIR and DOR flags are formed with the addition of
an AND gate. The basic operation and timing are identical to a single FIFO, with the exception of an added gate delay
on the flags.
September 1993
handbook, full pagewidth
4-Bit x 64-word FIFO register; 3-state
COMPOSITE
DATA INPUT
DATA INPUT
Fig.18 Expanded FIFO for increased word length; 64 words x 10 bits.
FLAG
DIR
MR
SI
4
4
SI
SI
DIR
DIR
MR
MR
D n
D n
7403
7403
22
MGA678
DOR
DOR
Q n
SO
OE
SO
OE
Q n
4
4
SO
OE
DATA OUTPUT
DATA OUTPUT
COMPOSITE
FLAG
DOR
74HC/HCT7403
Product specification