FM25040B-GATR datasheet, PDF - EEWORLD Datasheet

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FM25040B-GATR: DescriptionMemory Circuit, 512X8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8; Categorystorage storage; File Size427KB，13 Pages; ManufacturerRamtron International Corporation (Cypress Semiconductor Corporation); Websitehttp://www.cypress.com/; Environmental Compliance

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FM25040B-GATR Overview

Memory Circuit, 512X8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8

FM25040B-GATR Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Ramtron International Corporation (Cypress Semiconductor Corporation)
Parts packaging code	SOIC
package instruction	SOP, SOP8,.25
Contacts	8
Reach Compliance Code	unknown
JESD-30 code	R-PDSO-G8
length	4.9 mm
memory density	4096 bit
Memory IC Type	MEMORY CIRCUIT
memory width	8
Number of functions	1
Number of terminals	8
word count	512 words
character code	512
Operating mode	SYNCHRONOUS
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
organize	512X8
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
power supply	5 V
Certification status	Not Qualified
Filter level	AEC-Q100
Maximum seat height	1.75 mm
Maximum standby current	0.00003 A
Maximum slew rate	0.003 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	AUTOMOTIVE
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
width	3.9 mm
Base Number Matches	1

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AEC Q100 Grade 1 Compliant

FM25040B

– Automotive Temp.

4Kb Serial 5V F-RAM Memory

Features

4K bit Ferroelectric Nonvolatile RAM



Organized as 512 x 8 bits



High Endurance 10 Trillion (10

) Read/Writes



NoDelay™ Writes



Advanced High-Reliability Ferroelectric Process

Fast Serial Peripheral Interface - SPI



Up to 14 MHz maximum Bus Frequency



Direct hardware replacement for EEPROM



SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)

Sophisticated Write Protection Scheme



Hardware Protection



Software Protection

Low Power Consumption



A

Standby Current (+85C)

Industry Standard Configuration



Automotive Temperature -40C to +125C

Qualified to AEC Q100 Specification



“Green”/RoHS 8-pin SOIC

Description

The FM25040B is a 4-kilobit nonvolatile memory

employing an advanced ferroelectric process. A

ferroelectric random access memory or FRAM is

nonvolatile but operates in other respects as a RAM.

It provides reliable data retention for years while

eliminating the complexities, overhead, and system

level reliability problems caused by EEPROM and

other nonvolatile memories.

The FM25040B performs write operations at bus

speed. No write delays are incurred. Data is written to

the memory array immediately after each byte has

been transferred to the device. The next bus cycle

may commence without the need for data polling.

The FM25040B is capable of supporting 10

read/write cycles, or 10 million times more write

cycles than EEPROM.

These capabilities make the FM25040B ideal for

nonvolatile memory applications requiring frequent

or rapid writes. Examples range from data collection,

where the number of write cycles may be critical, to

demanding industrial controls where the long write

time of EEPROM can cause data loss.

The FM25040B provides substantial benefits to users

of serial EEPROM, in a hardware drop-in

replacement. The FM25040B uses the high-speed SPI

bus which enhances the high-speed write capability

of FRAM technology. Device specifications are

guaranteed over the automotive temperature range of

-40°C to +125°C.

Pin Configuration

VSS

VDD

HOLD

SCK

Pin Names

/CS

/WP

/HOLD

SCK

VDD

VSS

Function

Chip Select

Write Protect

Hold

Serial Clock

Serial Data Input

Serial Data Output

Supply Voltage 5V

Ground

Ordering Information

FM25040B-GA

“Green”/RoHS 8-pin SOIC,

Automotive Grade 1

FM25040B-GATR “Green” /RoHS 8-pin SOIC,

Automotive Grade 1,

Tape & Reel

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.

Rev. 3.1

Mar. 2012

Ramtron International Corporation

1850 Ramtron Drive, Colorado Springs, CO 80921

(800) 545-FRAM, (719) 481-7000

http://www.ramtron.com

Page 1 of 13

FM25040B - Automotive Temp.

HOLD

SCK

Instruction Decode

Clock Generator

Control Logic

Write Protect

64 x 64

FRAM Array

Instruction Register

Address Register

Counter

Data I/O Register

Nonvolatile Status

Figure 1. Block Diagram

Pin Descriptions

Pin Name

/CS

I/O

Input

Description

Chip Select. This active-low input activates the device. When high, the device enters low-

power standby mode, ignores other inputs, and all outputs are tri-stated. When low, the

device internally activates the SCK signal. A falling edge on /CS must occur prior to every

op-code.

Serial Clock: All I/O activity is synchronized to the serial clock. Inputs are latched on the

rising edge and outputs occur on the falling edge. Since the device is static, the clock

frequency may be any value between 0 and 14 MHz and may be interrupted at any time.

Hold: The /HOLD pin is used when the host CPU must interrupt a memory operation for

another task. When /HOLD is low, the current operation is suspended. The device ignores

any transition on SCK or /CS. All transitions on /HOLD must occur while SCK is low.

Write Protect: This active-low pin prevents all write operations, including those to the

Status Register. If high, write access is determined by the other write protection features, as

controlled through the Status Register. A complete explanation of write protection is

provided on page 6.

Serial Input: All input data is driven to this pin. The pin is sampled on the rising edge of

SCK and is ignored at other times. It should always be driven to a valid logic level to meet

specifications.

* SI may be connected to SO for a single pin data interface.

Serial Output: SO is the data output pin. It is driven actively during a read and remains tri-

state at all other times including when /HOLD is low. Data transitions are driven on the

falling edge of the serial clock.

* SO can be connected to SI for a single pin data interface since the part communicates in

half-duplex fashion.

Supply Voltage: 5V

Ground

SCK

Input

/HOLD

Input

/WP

Input

Output

VDD

VSS

Supply

Rev. 3.1

Mar. 2012

Page 2 of

FM25040B-GATR Related Products

	FM25040B-GATR	FM25040B-GA
Description	Memory Circuit, 512X8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8	Memory Circuit, 512X8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8
Is it Rohs certified?	conform to	conform to
Maker	Ramtron International Corporation (Cypress Semiconductor Corporation)	Ramtron International Corporation (Cypress Semiconductor Corporation)
Parts packaging code	SOIC	SOIC
package instruction	SOP, SOP8,.25	SOP, SOP8,.25
Contacts	8	8
Reach Compliance Code	unknown	unknown
JESD-30 code	R-PDSO-G8	R-PDSO-G8
length	4.9 mm	4.9 mm
memory density	4096 bit	4096 bit
Memory IC Type	MEMORY CIRCUIT	MEMORY CIRCUIT
memory width	8	8
Number of functions	1	1
Number of terminals	8	8
word count	512 words	512 words
character code	512	512
Operating mode	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C
organize	512X8	512X8
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP
Encapsulate equivalent code	SOP8,.25	SOP8,.25
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE
power supply	5 V	5 V
Certification status	Not Qualified	Not Qualified
Filter level	AEC-Q100	AEC-Q100
Maximum seat height	1.75 mm	1.75 mm
Maximum standby current	0.00003 A	0.00003 A
Maximum slew rate	0.003 mA	0.003 mA
Maximum supply voltage (Vsup)	5.5 V	5.5 V
Minimum supply voltage (Vsup)	4.5 V	4.5 V
Nominal supply voltage (Vsup)	5 V	5 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	AUTOMOTIVE	AUTOMOTIVE
Terminal form	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL
width	3.9 mm	3.9 mm
Base Number Matches	1	1

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