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HMNR28DV

Hanbit Electronics
Part Number HMNR28DV
Manufacturer Hanbit Electronics
Description TIMEKEEPER NVSRAM
Published Jan 2, 2007
Detailed 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...
Datasheet PDF File HMNR28DV PDF File

HMNR28DV
HMNR28DV

Overview
www.
DataSheet4U.
com HANBit HMNR28D(V) 5.
0 or 3.
3V, 16K bit (2 Kbit x 8) TIMEKEEPER NVSRAM Part No.
HMNR28D(V) GENERAL DESCRIPTION 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.
The special DIP package provides a fully integrated battery back-up memory and real time clock solution.
The HMNR28D(V) directly replaces industry standard 2Kbit x 8 SRAMs.
It also provides the non-volatility of Flash without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed.
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 = 4.
5 to 5.
5V 4.
2V ≤ VPFD ≤ 4.
5V – HMNR28DV: VCC = 3.
0 to 3.
6V 2.
7V ≤ VPFD ≤ 3.
0V ■ CONVENTIONAL SRAM OPERATION : UNLIMITED ...


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