FM1608B-PG 查看數據表（PDF） - Cypress Semiconductor

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FM1608B-PG

F-RAM

Cypress Semiconductor 

FM1608B (PDIP)

64Kb Bytewide 5V F-RAM Memory

Features

64Kbit Ferroelectric Nonvolatile RAM

Organized as 8,192 x 8 bits

High Endurance 1 Trillion (1012) Read/Writes

38 year Data Retention @ +75 C

NoDelay™ Writes

Advanced High-Reliability Ferroelectric Process

Superior to BBSRAM Modules

No Battery Concerns

Monolithic Reliability

Superior for Moisture, Shock, and Vibration

Resistant to Negative Voltage Undershoots

Description

The FM1608B is a 64-kilobit nonvolatile memory

employing an advanced ferroelectric process. A

ferroelectric random access memory or F-RAM is

nonvolatile but operates in other respects as a RAM.

It provides data retention for 38 years while

eliminating the reliability concerns, functional

disadvantages and system design complexities of

battery-backed SRAM (BBSRAM). Fast write timing

and high write endurance make F-RAM superior to

other types of nonvolatile memory.

In-system operation of the FM1608B is very similar

to other RAM devices. Minimum read- and write-

cycle times are equal. The F-RAM memory, however,

is nonvolatile due to its unique ferroelectric memory

process. Unlike BBSRAM, the FM1608B is a truly

monolithic nonvolatile memory. It provides the same

functional benefits of a fast write without the

disadvantages associated with modules and batteries

or hybrid memory solutions.

These capabilities make the FM1608B ideal for

nonvolatile memory applications requiring frequent

or rapid writes in a bytewide environment. The

availability of a through-hole package allows ease of

insertion and removal in systems that utilize a DIP

socket. Device specifications are guaranteed over the

extended temperature range of 0°C to +85°C.

SRAM & EEPROM Compatible

JEDEC 8Kx8 SRAM & EEPROM pinout

70 ns Access Time

130 ns Cycle Time

Low Power Operation

15 mA Active Current

25 A (typ.) Standby Current

Industry Standard Configuration

Extended Temperature 0 C to +85 C

28-pin “Green”/RoHS PDIP Package

Pin Configuration

NC

1

A12

2

A7

3

A6

4

A5

5

A4

6

A3

7

A2

8

A1

9

A0

10

DQ0

11

DQ1

12

DQ2

13

VSS

14

28

VDD

27

WE

26

NC

25

A8

24

A9

23

A11

22

OE

21

A10

20

CE

19

DQ7

18

DQ6

17

DQ5

16

DQ4

15

DQ3

Ordering Information

FM1608B-PG 28-pin “Green”/RoHS PDIP

This product conforms to specifications per the terms of the Ramtron standard warranty. The product has completed Ramtron’s

internal qualification testing and has reached production status.

Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600

Document Number: 001-86599 Rev. **

Revised March 19, 2013

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