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NM24W17UTLM8 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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NM24W17UTLM8 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 13 page 1 www.fairchildsemi.com NM24C16U/17U Rev. B.1 August 1999 © 1999 Fairchild Semiconductor Corporation NM24C16U/NM24C17U 16K-Bit Serial EEPROM 2-Wire Bus Interface General Description The NM24C16U/17U devices are 16K (16,384) bit serial interface CMOS EEPROMs (Electrically Erasable Programmable Read- Only Memory). These devices fully conform to the Standard I2C™ 2-wire protocol which uses Clock (SCL) and Data I/O (SDA) pins to synchronously clock data between the "master" (for example a microprocessor) and the "slave" (the EEPROM device). In addi- tion, the serial interface allows a minimal pin count packaging designed to simplify PC board layout requirements and offers the designer a variety of low voltage and low power options. NM24C17U incorporates a hardware "Write Protect" feature, by which, the upper half of the memory can be disabled against programming by connecting the WP pin to V CC. This section of memory then effectively becomes a ROM (Read-Only Memory) and can no longer be programmed as long as WP pin is connected to V CC. Fairchild EEPROMs are designed and tested for applications requir- ing high endurance, high reliability and low power consumption for a continuously reliable non-volatile solution for all markets. Block Diagram Functions I I2C™ compatible interface I 4,096 bits organized as 512 x 8 I Extended 2.7V – 5.5V operating voltage I 100 KHz or 400 KHz operation I Self timed programming cycle (6ms typical) I "Programming complete" indicated by ACK polling I NM24C17U: Memory "Upper Block" Write Protect pin Features I The I2C™ interface allows the smallest I/O pincount of any EEPROM interface I 16 byte page write mode to minimize total write time per byte I Typical 200µA active current (I CCA) I Typical 1µA standby current (I SB) for "L" devices and 0.1µA standby current for "LZ" devices I Endurance: Up to 1,000,000 data changes I Data retention greater than 40 years H.V. GENERATION TIMING &CONTROL E2PROM ARRAY YDEC DATA REGISTER XDEC CONTROL LOGIC WORD ADDRESS COUNTER SLAVE ADDRESS REGISTER & COMPARATOR START STOP LOGIC CK DIN R/W SDA SCL VSS WP VCC DOUT DS800010-1 I2C™ is a registered trademark of Philips Electronics N.V. |
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