FM24C128A Shanghai Fudan Microelectronics Co., Ltd., FM24C128A Datasheet

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FM24C128A

Manufacturer Part Number
FM24C128A
Description
2-wire Serial Eeprom
Manufacturer
Shanghai Fudan Microelectronics Co., Ltd.
Datasheet

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FM24C128A
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RAMTRON
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FM24C128A-TS-T-G
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FM
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FM24C128A/256A
2-Wire Serial EEPROM
Data Sheet
Feb. 2009
Data Sheet
FM24C128A/256A 2-Wire Serial EEPROM
Ver 1.4
1

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FM24C128A Summary of contents

Page 1

... FM24C128A/256A 2-Wire Serial EEPROM Data Sheet Feb. 2009 FM24C128A/256A 2-Wire Serial EEPROM Ver 1.4 Data Sheet 1 ...

Page 2

... Shanghai Fudan Microelectronics Co., Ltd name and logo, the “复旦” logo are trademarks or registered trademarks of Shanghai Fudan Microelectronics Co., Ltd or its subsidiaries in China. Shanghai Fudan Microelectronics Co., Ltd, Printed in the China, All Rights Reserved. FM24C128A/256A 2-Wire Serial EEPROM Ver 1.4 Data Sheet ...

Page 3

... Description The FM24C128A/256A provides 131,072/262,144 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 16,384/32,768 words of 8 bits each. The device’s cascadable feature allows devices to share a common 2-wire bus. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential ...

Page 4

... Figure 1.Block Diagram FM24C128A/256A 2-Wire Serial EEPROM Ver 1.4 Data Sheet 4 ...

Page 5

... GND if the capacitive coupling to the circuit board V >3pF, FMSH recommends connecting the address pins to GND. WRITE PROTECT (WP): The FM24C128A/256A has a Write Protect pin that provides hardware data protection. The WP pin allows normal write operations when connected to ground (GND). When the Write Protect pin is connected to V write operations to the memory are inhibited ...

Page 6

... V Output Low Level 2 OL2 V Output Low Level 1 OL1 Note min and V max are reference only and are not tested FM24C128A/256A 2-Wire Serial EEPROM = 25° 1.0 MHz Test Condition = -40°C to +85° Test Condition V = 5.0V, Read at 400KHz 5.0V, Write at 400KHz ...

Page 7

... Notes: 1. This parameter is characterized and is not 100% tested measurement conditions: RL (connects Input pulse voltages: 0.3 V Input rise and fall times: ≤ Input and output timing reference voltages: 0.5 V FM24C128A/256A 2-Wire Serial EEPROM = -40°C to +85° 1.7-volt 参数 Min 1.3 ...

Page 8

... The EEPROM sends a zero during the ninth clock cycle to acknowledge that it has received each word. STANDBY MODE: The FM24C128A/256A features a low-power standby mode which is enabled: (a) upon power-up and (b) after the receipt of the stop bit and the completion of any internal operations. ...

Page 9

... Figure 3.SCL: Serial Clock, SDA: Serial Data I/O Note: 1. The write cycle time t internal clear/write cycle. Figure 4.Data Validity Figure 5.Start and Stop Definition SDA SCL START FM24C128A/256A 2-Wire Serial EEPROM is the time from a valid stop condition of a write sequence to the end of the WR STOP Ver 1.4 Data Sheet 9 ...

Page 10

... NOISE PROTECTION: Special internal circuitry placed on the SDA and SCL pins prevent small noise spikes from activating the device. DATA SECURITY: The FM24C128A/256A has a hardware data protection scheme that allows the user to write protect the entire memory when the WP pin ...

Page 11

... Only if the internal write cycle has completed will the EEPROM respond with a zero allowing the read or write sequence to continue. FM24C128A/256A 2-Wire Serial EEPROM Read Operations Read operations are initiated the same way as write operations with the exception that the read/write select bit in the device address word is set to one ...

Page 12

... Figure 7.Device Address 1 0 Figure 8.Byte Write Note Don’t CARE bits 2. = Don’t CARE bits for the 128K Figure 9.Page Write Note Don’t CARE bits 2. = Don’t CARE bits for the 128K FM24C128A/256A 2-Wire Serial EEPROM ...

Page 13

... Figure 10.Current Address Read Figure 11. Random Read Note Don’t CARE bits Don’t CARE bits for the 128K Figure 12. Sequential Read FM24C128A/256A 2-Wire Serial EEPROM Ver 1.4 Data Sheet 13 ...

Page 14

... T = Tape and Reel R = Module Reel HSF ID Code Blank RoHS Compliant G = RoHS Compliant, Halogen-free, Antimony-free Note: 1. For the details of Module package please contact local sales office. FM24C128A/256A 2-Wire Serial EEPROM FM 24C DDD M2F or M2P = 8-pin Module Package M3F or M3P = 6-pin Module Package Ver 1.4 -H ...

Page 15

... Part Marking Scheme PDIP8 SOP8 FM24CDDDA TSSOP8 FM24C128A/256A 2-Wire Serial EEPROM Product Density HSF ID Code R = RoHS Compliant G = RoHS Compliant, Halogen-free, Antimony-free Lot Number just with 0~9 A~Z Assembly’s Code Work week during which the products was molded (eg..week 12) The last two digits of the year In which the products was seal / molded ...

Page 16

... Packaging Information FM24C128A/256A 2-Wire Serial EEPROM PDIP 8 Ver 1.4 Data Sheet 16 ...

Page 17

... FM24C128A/256A 2-Wire Serial EEPROM SOP 8 Ver 1.4 Data Sheet 17 ...

Page 18

... FM24C128A/256A 2-Wire Serial EEPROM TSSOP 8 Ver 1.4 Data Sheet 18 ...

Page 19

... Jan. 2008 19 1.2 May. 2008 19 1.3 Oct. 2008 20 1.4 Feb. 2009 20 FM24C128A/256A 2-Wire Serial EEPROM Paragraph or Illustration Preliminary Release. “AC characteristics” Change t “Feature” 1. Removed the description for wafer sale. “Absolute maximum 2. Added the absolute maximum ratings for module ratings” package. “Ordering information” ...

Page 20

... Fax:(86-10)8418 6211 Shenzhen Office Address: Room.1301, Century Bldg, Shengtingyuan Hotel, Huaqiang Rd (North), Shenzhen City, China. Postcode: 518028 Tel: (86-0755) 8335 3211 8335 6511 Fax: (86-0755) 8335 9011 Web Site: http://www.fmsh.com/ FM24C128A/256A 2-Wire Serial EEPROM Ver 1.4 Data Sheet 20 ...

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