UPD43256B-L datasheet, PDF - EEWORLD Datasheet

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UPD43256B-L: Description32K X 8 STANDARD SRAM, 70 ns, PDIP28; Categorystorage; File Size126KB，24 Pages; ManufacturerNEC ( Renesas ); Websitehttps://www2.renesas.cn/zh-cn/

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UPD43256B-L Overview

32K X 8 STANDARD SRAM, 70 ns, PDIP28

UPD43256B-L Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	28
Maximum operating temperature	70 Cel
Minimum operating temperature	0.0 Cel
Maximum supply/operating voltage	5.5 V
Minimum supply/operating voltage	4.5 V
Rated supply voltage	5 V
maximum access time	70 ns
Processing package description	0.600 INCH, Plastic, DIP-28
state	DISCONTINUED
Craftsmanship	CMOS
packaging shape	Rectangle
Package Size	IN-line
Terminal form	THROUGH-hole
Terminal spacing	2.54 mm
terminal coating	tin lead
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	COMMERCIAL
memory width	8
organize	32K × 8
storage density	262144 deg
operating mode	ASYNCHRONOUS
Number of digits	32768 words
Number of digits	32K
Memory IC type	Standard memory
serial parallel	parallel

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DATA SHEET

MOS INTEGRATED CIRCUIT

PD43256B

256K-BIT CMOS STATIC RAM

32K-WORD BY 8-BIT

Description

The

PD43256B is a high speed, low power, and 262, 144 bits (32,768 words by 8 bits) CMOS static RAM.

Battery backup is available (L, LL, A, and B versions). And A and B versions are wide voltage operations.

The

PD43256B is packed in 28-pin plastic DIP, 28-pin plastic SOP and 28-pin plastic TSOP (I).

Features

• 32,768 words by 8 bits organization

• Fast access time: 70, 85, 100, 120, 150 ns (MAX.)

• Wide voltage range (A version: V

= 3.0 to 5.5 V, B version: V

= 2.7 to 5.5 V)

• 2 V data retention

• OE input for easy application

Operating

supply voltage

4.5 to 5.5

Operating

temperature

°C

0 to 70

Standby

supply current

A (MAX.)

3.0 to 5.5

2.7 to 5.5

Data retention

supply current

Note 1

A (MAX.)

Part number

Access time

ns (MAX.)

70, 85

85, 100

Note 2

, 120

Note 2

100, 120, 150

PD43256B-L

PD43256B-LL

PD43256B-A

PD43256B-B

Note 2

Notes 1.

≤

40 ˚C, V

= 3 V

Access time : 85 ns (MAX.) (V

= 4.5 to 5.5 V)

Version X and P

This data sheet can be applied to the version X and P. Each version is identified with its lot number. Letter X in

the fifth character position in a lot number signifies version X, letter P, version P.

JAPAN

D43256B

Lot number

The information in this document is subject to change without notice.

Document No. M10770EJ9V0DS00 (9th edition)

Date Published May 1997 N

Printed in Japan

The mark

shows major revised points.

1990, 1993, 1994

UPD43256B-L Related Products

	UPD43256B-L	UPD43256BGU-B15	UPD43256B-LL	UPD43256B-A	UPD43256B-B	D43256BGU
Description	32K X 8 STANDARD SRAM, 70 ns, PDIP28	32K X 8 STANDARD SRAM, 70 ns, PDIP28	32K X 8 STANDARD SRAM, 70 ns, PDIP28	32K X 8 STANDARD SRAM, 70 ns, PDIP28	32K X 8 STANDARD SRAM, 70 ns, PDIP28	32K X 8 STANDARD SRAM, 70 ns, PDIP28
Number of functions	1	1	1	1	1	1
Number of terminals	28	28	28	28	28	28
Maximum operating temperature	70 Cel	70 Cel	70 Cel	70 Cel	70 Cel	70 Cel
Minimum operating temperature	0.0 Cel	0.0 Cel	0.0 Cel	0.0 Cel	0.0 Cel	0.0 Cel
Maximum supply/operating voltage	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply/operating voltage	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V
Rated supply voltage	5 V	5 V	5 V	5 V	5 V	5 V
maximum access time	70 ns	70 ns	70 ns	70 ns	70 ns	70 ns
Processing package description	0.600 INCH, Plastic, DIP-28	0.600 INCH, Plastic, DIP-28	0.600 INCH, Plastic, DIP-28	0.600 INCH, Plastic, DIP-28	0.600 INCH, Plastic, DIP-28	0.600 INCH, Plastic, DIP-28
state	DISCONTINUED	DISCONTINUED	DISCONTINUED	DISCONTINUED	DISCONTINUED	DISCONTINUED
Craftsmanship	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
packaging shape	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle
Package Size	IN-line	IN-line	IN-line	IN-line	IN-line	IN-line
Terminal form	THROUGH-hole	THROUGH-hole	THROUGH-hole	THROUGH-hole	THROUGH-hole	THROUGH-hole
Terminal spacing	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm
terminal coating	tin lead	tin lead	tin lead	tin lead	tin lead	tin lead
Terminal location	pair	pair	pair	pair	pair	pair
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
memory width	8	8	8	8	8	8
organize	32K × 8	32K × 8	32K × 8	32K × 8	32K × 8	32K × 8
storage density	262144 deg	262144 deg	262144 deg	262144 deg	262144 deg	262144 deg
operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Memory IC type	Standard memory	Standard memory	Standard memory	Standard memory	Standard memory	Standard memory
serial parallel	parallel	parallel	parallel	parallel	parallel	parallel
Number of digits	32K	32K	32K	32K	32K	32K

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