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M48T35AY - 256 Kbit 32Kb x8 TIMEKEEPER SRAM

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General Description

The M48T35AY/35AV TIMEKEEPER ® RAM is a 32Kb x8 non-volatile static RAM and real time clock.

The monolithic chip is available in two special packages to provide a highly integrated battery backed-up memory and real time clock solution.

The M48T35AY/35AV is a non-volatile pin and function equivalent to any JEDEC standard 32Kb x8 SRAM.

Overview

M48T35AY M48T35AV 256 Kbit (32Kb x8) TIMEKEEPER® SRAM s INTEGRATED ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT and BATTERY BYTEWIDE™ RAM-LIKE CLOCK ACCESS BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES and SECONDS BATTERY LOW FLAG (BOK) FREQUENCY TEST OUTPUT for REAL TIME CLOCK AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): – M48T35AY: 4.2V ≤ V PFD ≤ 4.5V – M48T35AV: 2.7V ≤ VPFD ≤ 3.0V SNAPHAT (SH) Battery/Crystal s s s s 28 28 1 1 s s SOH28 (MH) PCDIP28 (PC) Battery/Crystal CAPHAT s SELF-CONTAINED BATTERY and CRYSTAL in the CAPHAT DIP PACKAGE SOIC PACKAGE PROVIDES DIRECT CONNECTION for a SNAPHAT HOUSING CONTAINING the BATTERY and CRYSTAL SNAPHAT® HOUSING (BATTERY and CRYSTAL) is REPLACEABLE PIN and FUNCTION COMPATIBLE with JEDEC STANDARD 32Kb x8 SRAMs Figure 1.

Key Features

  • ximately 2.5V, an i.

More Datasheets from STMicroelectronics

Part Number Description
M48T35AV 256 Kbit (32 Kbit x 8) TIMEKEEPER SRAM
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