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M48T37Y View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
M48T37Y Datasheet PDF : 30 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
M48T37Y
M48T37V
5.0 or 3.3 V, 256 Kbit (32 Kbit x 8) TIMEKEEPER® SRAM
Features
â–  Integrated ultra low power SRAM, real-time
clock, power-fail control circuit, and battery
â–  Frequency test output for real-time clock
software calibration
â–  Automatic power-fail chip deselect and WRITE
protection
â–  Watchdog timer
â–  WRITE protect voltage
(VPFD = Power-fail deselect voltage):
– M48T37Y: VCC = 4.5 to 5.5 V
4.2 V ≤ VPFD ≤ 4.5 V
– M48T37V: VCC = 3.0 to 3.6 V
2.7 V ≤ VPFD ≤ 3.0 V
â–  Packaging includes a 44-lead SOIC and
SNAPHAT® top (to be ordered separately)
â–  SOIC package provides direct connection for a
SNAPHAT® top which contains the battery and
crystal
â–  Microprocessor power-on reset (valid even
during battery backup mode)
â–  Programmable alarm output active in the
battery backup mode
â–  Battery low flag
â–  RoHS compliant
– Lead-free second level interconnect
SNAPHAT® (SH)
Battery/crystal
44
1
SOH44 (MH)
44-pin SOIC
August 2010
Doc ID 7019 Rev 9
1/30
www.st.com
1
 

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