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FM24C32 データシート(PDF) 1 Page - Fairchild Semiconductor |
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FM24C32 データシート(HTML) 1 Page - Fairchild Semiconductor |
1 / 13 page 1 www.fairchildsemi.com FM24C32U Rev. A.1 September 2002 © 2001 Fairchild Semiconductor Corporation FM24C32U – 32K-Bit Standard 2-Wire Bus Interface Serial EEPROM General Description FM24C32U is a 32Kbit CMOS non-volatile serial EEPROM orga- nized as 4K x 8 bit memory. This device confirms to Extended IIC 2-wire protocol that allows accessing of memory in excess of 16Kbit on an IIC bus. This serial communication protocol uses a Clock signal (SCL) and a Data signal (SDA) to synchronously clock data between a master (e.g. a microcontroller) and a slave (EEPROM). FM24C32U is designed to minimize pin count and simplify PC board layout requirements. FM24C32U offers hardware write protection where by the upper half (upper 16Kbit) of the memory array can be write protected by connecting WP pin to V CC. This section of memory then becomes unalterable until the WP pin is switched to V SS. “LZ” and “L” versions of FM24C32U offer very low standby current making them suitable for low power applications. This device is offered in both SO and DIP packages. Fairchild EEPROMs are designed and tested for applications requiring high endurance, high reliability and low power consump- tion. Block Diagram Features I Extended operating voltage: 2.7V to 5.5V I Up to 400 KHz clock frequency at 2.7V to 5.5V I Low power consumption — 0.2mA active current typical —10 µA standby current typical —1 µA standby current typical (L version) — 0.1 µA standby current typical (LZ version) I Schmitt trigger inputs I 32 byte page write mode I Self timed write cycle (6ms typical) I Hardware Write Protection for upper half of the array I Low V CC programming lockout for VCC = 5V±10% (“H” option) — Internal ERASE/WRITE logic is disabled if VCC is below 3.8V I Endurance: 1 Million data changes I Data Retention: Greater than 40 years I Packages: 8-Pin DIP and 8-Pin SO I Temperature range — Commercial: 0 °C to +70°C — Industrial (V): -40 °C to +85°C — Automotive (E): -40 °C to +125°C H.V. GENERATION TIMING &CONTROL E2PROM ARRAY YDEC DATA REGISTER XDEC CONTROL LOGIC WORD ADDRESS COUNTER SLAVE ADDRESS REGISTER & COMPARATOR START STOP LOGIC WRITE LOCKOUT CK DIN R/W SDA SCL WP VCC VSS DOUT A2 A1 A0 |
同様の部品番号 - FM24C32 |
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同様の説明 - FM24C32 |
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