Product Summary

The m48t59y70pc1 is an 8Kb x8 non-volatile static RAM and real time clock. The monolithic chip is available in two special packages to provide a highly integrated battery backed-up memory and real time clock solution. The m48t59y70pc1 is a non-volatile pin and function equivalent to any JEDEC standard 8Kb x8 SRAM. The m48t59y70pc1 also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility of PROMs without any requirement for special write timing or limitations on the number of writes that can be performed.

Parametrics

m48t59y70pc1 absolute maximum ratings: (1)TA, Ambient Operating Temperature, Grade 1: 0 to 70℃; Grade 6 –40 to 85℃; (2)TSTG, Storage Temperature (VCC Off, Oscillator Off): –40 to 85℃; (3)TSLD, Lead Solder Temperature for 10 seconds: 260℃; (4)VIO, Input or Output Voltages: –0.3 to 7 V; (5)VCC, Supply Voltage:–0.3 to 7V; (6)IO, Output Current: 20 mA; (7)PD, Power Dissipation: 1 W.

Features

m48t59y70pc1 features: (1)integrated ultra low power sram, real time clock, power-fail control circuit and battery; (2)frequency test output for real time clock software calibration; (3)automatic power-fail chip deselect and write protection; (4)write protect voltages (VPFD = Power-fail Deselect Voltage): 4.2V ≤ VPFD ≤ 4.5V; (5)self-contained battery and crystal in the caphat DIP package; (6)packaging includes a 28-lead SOIC and snaphat top (to be ordered separately); (7)SOIC package provides direct connection for a snaphat top which contains the battery and crystal; (8)microprocessor power-on reset (Valid even during battery back-up mode); (9)programmable alarm output active in the battery back-up mode; (10)battery low flag.

Diagrams

m48t59y70pc1 block diagram