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DS1245Y-120
DS1245Y/AB 1024k Nonvolatile SRAM www.maxim-ic.com FEATURES PIN ASSIGNMENT 10 years minimum data retention in the absence of external power Data is automatically protected during power loss Replaces 128k x 8 volatile static RAM, EEPROM or Flash memory Unlimited write cycles Low-power CMOS Read and write access times as fast as 70 ns Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time Full 10% VCC operating range (DS1245Y) Optional 5% VCC operating range (DS1245AB) Optional industrial temperature range of -40C to +85C, designated IND JEDEC standard 32-pin DIP package PowerCap Module (PCM) package - Directly surface-mountable module - Replaceable snap-on PowerCap provides lithium backup battery - Standardized pinout for all nonvolatile SRAM products - Detachment feature on PowerCap allows easy removal using a regular screwdriver NC A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 32 31 30 29 28 27 26 25 24 23 22 21 VCC A15 NC WE A13 A8 A9 A11 OE A10 CE A0 1 2 3 4 5 6 7 8 9 10 11 12 DQ0 13 20 DQ6 DQ1 DQ2 14 19 15 DQ5 DQ4 GND 16 18 17 DQ7 DQ3 32-PIN ENCAPSULATED PACKAGE 740 MIL EXTENDED NC A15 A16 NC VCC WE OE CE DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 GND VBAT 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 NC NC A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 34-PIN POWERCAP MODULE (PCM) (USES DS9034PC POWERCAP) PIN DESCRIPTION A0 - A16 DQ0 - DQ7 CE WE OE VCC GND NC 1 of 13 - Address Inputs - Data In/Data Out - Chip Enable - Write Enable - Output Enable - Power (+5V) - Ground - No Connect 121907
STM
STMicroelectronics NV
スイス
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