SM5838AS 查看數據表（PDF） - Nippon Precision Circuits

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SM5838AS

5120 × 8-bit Synchronous FIFO

Nippon Precision Circuits  

NIPPON PRECISION CIRCUITS INC.

SM5838AS

5120 × 8-bit Synchronous FIFO

OVERVIEW

The SM5838AS is a 5120 × 8-bit synchronous FIFO

(first in, first out) high-speed line buffer. Internally, it

employs static CMOS circuits which mean that it

effectively has limitless data hold times. It can oper-

ate at speeds up to 33.3 MHz (normal-voltage speci-

fication).

The SM5838AS can be used to easily realize a 1-line

delay in high-speed facsimile machines and digital

copiers.

FEATURES

s 5120 × 8-bit structure

s Variable-length delay (21 to 5120 bits)

s 33.3 MHz high-speed operation (normal-voltage

specification)

s All input/outputs TTL compatible

s Independent read enable and output enable pins,

allowing read address pointer increment in output

data hold and output high-impedance states

s Supply voltage

• 4.5 to 5.5 V (normal-voltage specification)

• 3.0 to 4.5 V (low-voltage specification)

s 24-pin SOP package

s Molybdenum-gate CMOS process

s A3-paper 1-line (16 dots/mm) compatible

PACKAGE DIMENSIONS

24-pin SOP (Unit: mm)

PINOUT

DOUT0 1

DOUT1 2

DOUT2 3

DOUT3 4

OE 5

RR 6

VSS 7

RE 8

DOUT4 9

DOUT5 10

DOUT6 11

DOUT7 12

(TOP VIEW)

24 DIN0

23 DIN1

22 DIN2

21 DIN3

20 WE

19 RW

18 VDD

17 CLK

16 DIN4

15 DIN5

14 DIN6

13 DIN7

15.8TYP

0.915

1.27 0.1

0.4

+

-

0.10

0.05

0.17+-

0.08

0.07

0 10

1.0 0.2

NIPPON PRECISION CIRCUITS—1

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