FM24V05-GTR datasheet(9/16 Pages) RAMTRON

Nome de Peças	FM24V05-GTR

Descrição Electrónicos	512Kb Serial 3V F-RAM Memory

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Fabricante Electrônico	RAMTRON [Ramtron International Corporation]

Página de início	http://www.ramtron.com

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FM24V05 - 512Kb I2C FRAM

Rev. 2.0

May 2010

Page 9 of 16

Device ID

The FM24V05 and FM24VN05 devices incorporate a

means of identifying the device by providing three

bytes of data, which are manufacturer, product ID,

and die revision. The Device ID is read-only. It can

be accessed as follows:

1. The master sends a START command.

2. The master sends Reserved Slave ID 0xF8

3. The master sends the I2C-bus slave address

of the slave device it needs to identify. The

last bit is a ‘Don’t care’ value (R/W bit).

Only one device must acknowledge this byte

(the one that has the I2C-bus slave address).

4. The master sends a Re-START command.

5. The master sends Reserved Slave ID 0xF9

6. The Device ID Read can be done, starting

with the 12 manufacturer bits, followed by

the 9 part identification bits, and then the 3

die revision bits.

7. The master ends the Device ID read

sequence by NACKing the last byte, thus

resetting the slave device state machine and

allowing the master to send the STOP

command.

Note: The reading of the Device ID can be stopped

anytime by sending a NACK command.

S

A

Data Byte

1

P

By Master

By FM24V05

Start

Address

Stop

No

Acknowledge

Data

S

A

Rsvd Slave ID (F8)

Slave Address

A

Start

Address

Acknowledge

Rsvd Slave ID (F9)

A

Data Byte

Acknowledge

Figure 13. Read Device ID

Manufacturer ID

Product ID

Die Rev.

11

10

9

8

7

6

5

4

3

2

1

0

8

7

6

5

4

3

2

1

0

2

1

0

Ramtron

Density

Variation

0

1

0

1

N

0

Figure 14. Manufacturer and Product ID

Density: 01h=128Kb, 02h=256Kb, 03h=512Kb, 04=1Mb

Variation: Product ID bit 4 = S/N, Product ID bit 0 = reserved

The 3-byte hex code for an FM24V05 will be:

0x00 0x43 0x00

The 3-byte hex code for an FM24VN05 will be:

0x00 0x43 0x80

Nº de peça semelhante - FM24V05-GTR

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Ramtron International C...	FM24V05-GTR	200Kb / 15P	512Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM24V05-GTR	403Kb / 16P	512Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM24V05-GTR	387Kb / 17P	512Kb Serial 3V F-RAM Memory

More results

Descrição semelhante - FM24V05-GTR

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Ramtron International C...	FM25V05	334Kb / 16P	512Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM25V05	532Kb / 16P	512Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM25V05	486Kb / 17P	512Kb Serial 3V F-RAM Memory
Ramtron International C...	FM24V05	200Kb / 15P	512Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM24V05	403Kb / 16P	512Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM24V05	387Kb / 17P	512Kb Serial 3V F-RAM Memory
Ramtron International C...	FM25V02	343Kb / 17P	256Kb Serial 3V F-RAM Memory
Ramtron International C...	FM25V10	333Kb / 16P	1Mb Serial 3V F-RAM Memory
Cypress Semiconductor	FM24CL64B	354Kb / 13P	64Kb Serial 3V F-RAM Memory
Cypress Semiconductor	FM24V01	378Kb / 14P	128Kb Serial 3V F-RAM Memory

More results

FM24V05-GTR Folha de dados(PDF) 9 Page - Ramtron International Corporation

FM24V05-GTR Folha de dados(HTML) 9 Page - Ramtron International Corporation

Nº de peça semelhante - FM24V05-GTR

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