M48T02_03 Datasheet, PDF (1/19 Pages) STMicroelectronics – 5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER® SRAM

M48T02
M48T12
5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER^® SRAM
FEATURES SUMMARY
s INTEGRATED, ULTRA LOW POWER SRAM,
REAL TIME CLOCK, and POWER-FAIL
CONTROL CIRCUIT
s BYTEWIDE™ RAM-LIKE CLOCK ACCESS
s BCD CODED YEAR, MONTH, DAY, DATE,
HOURS, MINUTES, and SECONDS
s TYPICAL CLOCK ACCURACY OF ±1 MINUTE
A MONTH, AT 25°C
s SOFTWARE CONTROLLED CLOCK
CALIBRATION FOR HIGH ACCURACY
APPLICATIONS
s AUTOMATIC POWER-FAIL CHIP DESELECT
and WRITE PROTECTION
s WRITE PROTECT VOLTAGES
(V_PFD = Power-fail Deselect Voltage):
– M48T02: V_CC = 4.75 to 5.5V
4.5V ≤ V_PFD ≤ 4.75V
– M48T12: V_CC = 4.5 to 5.5V
4.2V ≤ V_PFD ≤ 4.5V
s SELF-CONTAINED BATTERY and CRYSTAL
IN THE CAPHAT™ DIP PACKAGE
s PIN and FUNCTION COMPATIBLE WITH
JEDEC STANDARD 2K x 8 SRAMs
Figure 1. 24-pin PCDIP, CAPHAT™ Package
24
1
PCDIP24 (PC)
Battery/Crystal
CAPHAT
March 2003
Rev. 3.0
1/19