8P256SRA0303I15 datasheet, PDF

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8P256SRA0303I15: DescriptionSRAM Card, 128KX16, 150ns, CMOS, CARD2-68; Categorystorage storage; File Size112KB，10 Pages; ManufacturerMicrosemi; Websitehttps://www.microsemi.com

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8P256SRA0303I15 Overview

SRAM Card, 128KX16, 150ns, CMOS, CARD2-68

8P256SRA0303I15 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	1934064751
package instruction	CARD2-68
Reach Compliance Code	unknown
Maximum access time	150 ns
Spare memory width	8
JESD-30 code	X-XXMA-X68
memory density	2097152 bit
Memory IC Type	SRAM CARD
memory width	16
Number of functions	1
Number of terminals	68
word count	131072 words
character code	128000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	128KX16
Package body material	UNSPECIFIED
Package shape	UNSPECIFIED
Package form	MICROELECTRONIC ASSEMBLY
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	UNSPECIFIED
Terminal location	UNSPECIFIED
Maximum time at peak reflow temperature	NOT SPECIFIED

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PCMCIA SRAM Memory Card

SRA Series

SRAM Memory Card

General Description

The WEDC SRAM Series (SRA) memory cards offer a

high performance nonvolatile storage solution for code

and data storage, disk caching, and write intensive

mobile and embedded applications.

Packaged in PCMCIA type I or type II housing (type II

for cards with extended battery backup time), the

WEDC SRAM SRA series is based on 1 or 4Mbit

SRAM memories, providing densities from 256

Kilobytes to 8 Megabytes.

The SRA series of SRAM memory cards requires a 5V

power supply and operates at speeds to 150ns. The

cards are based on advanced CMOS technology

providing very low power and reliable data retention

characteristics. WEDC’s SRAM cards contain a

rechargeable lithium battery and recharge circuitry,

eliminating the need for replaceable batteries found in

many SRAM cards.

WEDC’s standard cards are shipped with WEDC’s

SRAM Logo. Cards are also available with blank

housings (no Logo). The blank housings are available

in both a recessed (for label) and flat housing. Please

contact WEDC sales representative for further

information on Custom artwork.

256KB through 8MB

Features

•

High Performance SRAM memory Card

• Single 5 Volt Supply

- (3.3V/5V operation is available as an option)

• Fast Access times: 150ns

• x8/x16 PCMCIA standard interface

• Low Power CMOS technology provides very low

power and reliable data retention characteristics

- standby current < 100µA typical

• Rechargeable Lithium battery with recharge circuitry

- eliminates the need for replaceable batteries

- standby current during recharge typically < 2mA

- battery backup time

•7 months - type I card

•18 months - type II card

typical based on 4MB (lower densities will

have greater storage times)

• Unlimited write cycles, no endurance issues

• Optional Features:

• 2KB EEPROM attribute memory containing

CIS

• Optional Hardware Write Protect switch

• PC Card Standard Type I or Type II Form Factor

Block Diagram

4MB SRAM Card Shown

[A1..A19]

address

buffer

SRAM

512K x 8

[A20..A22]

/CSHi

+ + + + +

CE1#

CE2#

WE#

OE#

REG#

decoder

and

control

logic

/CSLi

/CS-A

/RD

/WR

CTRL

SRAM

512K x 8

SRAM

512K x 8

SRAM

512K x 8

SRAM

512K x 8

SRAM

512K x 8

SRAM

512K x 8

SRAM

512K x 8

/CSHi

[A1..A11]

Write Prot

Switch

VS1

VS2

GND

Vcc

/CS-A

/RD

/WR

ATTRIBUTE

MEMORY

CTRL

I/O BUFFER

[DO..D7]

[D8..D15]

BVD1

BVD2

Vcc

[D8..D15]

Power Management

and

Battery Control

Notes:

to internal

power

supply

1. pull down resistor (min 100k)

2. pull up resistor (min 10k)

Lithium Bat.

February 2002 Rev. 6

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