HM63921JP-25 ETC, HM63921JP-25 Datasheet

HM63921JP-25

Manufacturer Part Number

HM63921JP-25

Description

2048-word x 9-bit CMOS Parallel In-Out FIFO Memory

Manufacturer

ETC

Datasheet

1.HM63921JP-25.pdf (2 pages)

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HM63921 Series

2048-word

The HM63921 is a first-in, first-out memory that

utilizes a high performance static RAM array with

internal algorithm that controls, monitors and

declares status of the memory by empty flag, full

flag and half-full flag, to prevent data overflow or

underflow.

Expansion logic warrants unlimited expansion

capability in width and depth. Both read and write

are independent from each other and their

corresponding pointers are designed to select the

proper locations out of the entire array serially

without address information to load or unload data.

Data is toggled in and out of the device through the

use of the write enable (

pins. The device has a read/write cycle time of

30/35/45 ns. Organization of HM63921 provides a

9-bit data bus. The ninth bit could be used for

control or parity for error checking at the option of

the user. The HM63921 is fabricated using the

Hitachi CMOS 1.3 micron technology. The device

is available in DIP and SOJ.

Features

• First-in, first-out dual port memory

• 2 k 9 organization

• Low-power CMOS 1.3 micron technology

• Asynchronous and simultaneous read and write

• Fully expandable in depth and/or width

• Single 5 V power supply

• Empty and full warning flags

• Half-full flag

• Access time: 22/25/35 ns

• Package: 300-mil 28-pin plastic DIP package

300-mil 28-pin plastic SOJ package

9-bit CMOS Parallel In-Out FIFO Memory

) and read enable (

)

Pin Arrangement

Ordering Information

Type name

–––––––––––––––––––––––––––––––––––––––––

HM63921P-20R

––––––––––––––––––––––––––––

HM63921P-25

––––––––––––––––––––––––––––

HM63921P-35

–––––––––––––––––––––––––––––––––––––––––

HM63921JP-20R 22 ns

––––––––––––––––––––––––––––

HM63921JP-25

––––––––––––––––––––––––––––

HM63921JP-35

–––––––––––––––––––––––––––––––––––––––––

Access time

22 ns

25 ns

35 ns

25 ns

35 ns

(Top view)

FL/RT

XO/HF

Package

300-mil 28-pin

plastic DIP

(DP-28NA)

300-mil 28-pin

plastic SOJ

(CP-28DN)

Related parts for HM63921JP-25

HM63921JP-25 Summary of contents

Page 1

... HM63921JP-20R 22 ns –––––––––––––––––––––––––––– HM63921JP- –––––––––––––––––––––––––––– ...

Page 2

! " & & " . 201 " & ...

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