M95128

M95256 M95128 256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock PRELIMINARY DATA s s s s SPI Bus Compatible Serial Interface Supports Positive Clock SPI Modes 5 MHz Clock Rate (maximum) Single Supply Voltage: – 4.5V to 5.5V for M95xxx – 2.7V to 3.6V for M95xxx-V – 2.5V to 5.5V for M95xxx-W – 1.8V to 3.6V for M95xxx-R 8 1 PSDIP8 (BN) 0.25 mm frame 14 1 TSSOP14 (DL) 169 mil width s s Status Register Hardware and Software Protection of the Status Register BYTE and PAGE WRITE (up to 64 Bytes) Self-Timed Programming Cycle Resizeable Read-Only EEPROM Area Enhanced ESD Protection 100,000 Erase/Write Cycles (minimum) 40 Year Data Retention (minimum) s s s s s s 8 1 SO8 (MN) 150 mil width 8 1 SO8 (MW) 200 mil width DESCRIPTION These SPI-compatible electrically erasable programmable memory (EEPROM) devices are organized as 32K x 8 bits (M95256) and 16K x 8 bits (M95128), and operate down to 2.7 V (for the Figure 1. Logic Diagram VCC Table 1. Signal Names C D Q Serial Clock Serial Data Input Serial Data Output D C S W M95xxx Q S W HOLD VCC VSS Chip Select HOLD Write Protect Hold Supply Voltage Ground VSS AI01789C March 2000 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/21 M95256, M95128 Figure 2A. DIP Connections Figure 2C. TSSOP Connections M95128 M95xxx S Q W VSS 1 2 3 4 8 7 6 5 AI01790C VCC HOLD C D S Q NC NC NC W VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 AI02346 ...