M48T35AY Datasheet - ST Microelectronics

M48T35AY 256 Kbit 32Kb x8 TIMEKEEPER SRAM

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 .

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 .

M48T35AY Features

* ximately 2.5V, an i

M48T35AY_STMicroelectronics.pdf