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M48T129V

STMicroelectronics
Part Number M48T129V
Manufacturer STMicroelectronics
Description 1Mbit (128 Kbit x 8) TIMEKEEPER SRAM
Published Oct 19, 2016
Detailed Description M48T129Y M48T129V 5.0 or 3.3 V, 1 Mbit (128 Kbit x 8) TIMEKEEPER® SRAM Not recommended for new design Features ■ Inte...
Datasheet PDF File M48T129V PDF File

M48T129V
M48T129V

Overview
M48T129Y M48T129V 5.
0 or 3.
3 V, 1 Mbit (128 Kbit x 8) TIMEKEEPER® SRAM Not recommended for new design Features ■ Integrated, ultra low power SRAM, real-time clock, power-fail control circuit, battery, and crystal )■ BCD coded century, year, month, day, date, t(shours, minutes, and seconds c■ Battery low warning flag du■ Automatic power-fail chip deselect and WRITE roprotection P■ Two WRITE protect voltages: te(VPFD = power-fail deselect voltage) le– M48T129Y: VCC = 4.
5 to 5.
5 V; 4.
2 V ≤ VPFD ≤ 4.
5 V so– M48T129V: VCC = 3.
0 to 3.
6 V; b2.
7 V ≤ VPFD ≤ 3.
0 V O■ Conventional SRAM operation; unlimited -WRITE cycles t(s)■ Software controlled clock calibration for high accuracy applications uc■ 10 years of data retention and clock operation din the absence of power ro■ Self-contained battery and crystal in DIP Ppackage te■ Microprocessor power-on reset le(valid even during battery backup mode) so■ Programmable alarm output active in battery Obbackup mode...


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