Description
www.DataSheet4U.com HANBit HMNR28D(V) 5.0 or 3.3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM Part No.HMNR28D(V) GENERAL .
The HMNR28D(V) TIMEKEEPER SRAM is a 2Kb x 8 non-volatile static RAM and real time clock organized as 2,048 words by 8 bits.
Features
* INTEGRATED LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY and CRYSTAL
* BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, and SECONDS
* AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION VOLTAGES : (VPFD = Power-fail Deselect Voltage)
* HMNR28D : VCC
Applications
* 10 YEARS OF DATA RETENTION and CLOCK OPERATION IN THE ABSENCE OF POWER PIN and FUNCTION COMPATIBLE WITH INDUSTRY STANDARD 2K x 8 SRAMS
* SELF-CONTAINED BATTERY and CRYSTAL IN DIP PACKAGE
OPTIONS
w Timing 70 ns 85 ns
MARKING
-70 -85
PIN ASSIGNMENT
A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 Vss
