Details, datasheet, quote on part number: M48T559YMH1
PartM48T559YMH1
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Description
CompanyN.A.
DatasheetDownload M48T559YMH1 datasheet
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Features, Applications
64 Kbit x 8) TIMEKEEPER® SRAM with ADDRESS/DATA MULTIPLEXED

SOFTWARE and HARDWARE RESET for WATCHDOG TIMER REGISTER COMPATIBLE with M48T59 TIMEKEEPER SRAM ADDRESS/DATA MULTIPLEXED I/O PINS WATCHDOG TIMER - MONITORS OUT of CONTROL PROCESSOR or HUNG BUS ALARM with WAKE-UP in BATTERY MODE INTEGRATED ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT and BATTERY FREQUENCY TEST OUTPUT for REAL TIME CLOCK AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WRITE PROTECT VOLTAGE (VPFD = Power-fail Deselect Voltage): M48T559Y: 4.2V VPFD 4.5V PACKAGING INCLUDES a 28-LEAD SOIC and SNAPHAT® TOP (to be Ordered Separately) SOIC PACKAGE PROVIDES DIRECT CONNECTION for a SNAPHAT TOP CONTAINS the BATTERY and CRYSTAL MICROPROCESSOR POWER-ON RESET (Valid even during battery back-up mode) PROGRAMMABLE ALARM OUTPUT ACTIVE in the BATTERY BACK-UP MODE

DESCRIPTION The M48T559Y TIMEKEEPER® RAM x 8 non-volatile static RAM and real time clock. The monolithic chip is available in the SNAPHAT package to provide a highly integrated battery backedup memory and real time clock solution. The 28 pin 330mil SOIC provides sockets with gold plated contacts at both ends for direct connection to a separate SNAPHAT housing containing the battery and crystal. The unique design allows the SNAPHAT battery package to be mounted on top of the SOIC package after the completion of the surface mount process.

Complete data available on DATA-on-DISC CD-ROM or at www.st.com

Ordering Information Scheme For a list of available options or for further information on any aspect of this device, please contact the STMicroelectronics Sales Office nearest to you. Example: 1 TR

Supply Voltage and Write Protect Voltage 559Y VCC to 5.5V VPFD to 4.5V Package (1) SOH28 Temperature Range 70 °C

Shipping Method for SOIC Warning: NC = Not Connected; = Do not Use, must be connected to VCC or VSS. blank TR Tubes Tape & Reel

R E WDI RSTIN1-RSTIN2 RST IRQ/FT VCC VSS Address/Data Address Strobes Write Enable Read Enable Chip Enable Watchdog Input Reset Input Power Fail Reset Output (Open Drain) Interrupt / Frequency Test Output (Open Drain) Supply Voltage Ground

Note: 1. The SOIC package (SOH28) requires the battery/crystal package (SNAPHAT) which is ordered separately under the part number "M4T28-BR12SH1" in plastic tube "M4T28-BR12SH1TR" in Tape & Reel form. Caution: Do not place the SNAPHAT battery/crystal package "M4T28-BR12SH1" in conductive foam since this will drain the lithium button-cell battery.


 

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