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M48T39Y - 256Kb (32K x 8) TIMEKEEPER SRAM

General Description

The M48T39Y TIMEKEEPER® RAM is a non-volatile 262,144 bit static RAM and real time clock organized as 32,768 words by 8 bits.

Key Features

  • include Programmable Alarms, Watchdog Timer and Interval.

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Other Datasheets by STMicroelectronics

Part Number Description
M48T37V 256 Kbit (32 Kbit x 8) TIMEKEEPER SRAM
M48T37Y 256 Kbit (32 Kbit x 8) TIMEKEEPER SRAM
M48T08Y 64 Kbit 8Kb x 8 TIMEKEEPER SRAM
M48T129V 1Mbit (128 Kbit x 8) TIMEKEEPER SRAM
M48T129Y 1Mbit (128 Kbit x 8) TIMEKEEPER SRAM
M48T58Y 64 Kbit (8 Kb x 8) TIMEKEEPER SRAM
M48T59V 64 Kbit (8 Kb x 8) TIMEKEEPER SRAM
M48Z19 CMOS 8K x 8 ZEROPOWER SRAM
M48Z2M1V 16 Mbit (2 Mb x 8) ZEROPOWER SRAM
M48Z30Y CMOS 32K x 8 ZEROPOWER SRAM

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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M48T39Y 256 Kb (32K x8) TIMEKEEPER® SRAM PRELIMINARY DATA s INTEGRATED ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY and CRYSTAL s BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES and SECONDS s AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION s WRITE PROTECT VOLTAGE (VPFD = Power-fail Deselect Voltage): – M48T39Y: 4.20V ≤ VPFD ≤ 4.