Product Summary

The M48T58-70PC1 is an 8K 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.

Parametrics

M48T58-70PC1 absolute maximum ratings: (1)TA, Ambient Operating Temperature: 0 to 70℃; (2)TSTG, Storage Temperature (VCC Off, Oscillator Off): -40 to 85℃; (3)TSLD(2), 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 7 V; (6)IO, Output Current: 20 mA; (7)PD, Power Dissipation: 1 W.

Features

M48T58-70PC1 features: (1)integrated ultra low power sram, real time clock, power-fail control circuit and battery; (2)bytewide ram-like clock access; (3)bcd coded year, month, day, date, hours, minutes and seconds; (4)frequency test output for real time clock; (5)automatic power-fail chip deselect and write protection; (6)write protect voltages (vpfd = power-fail deselect voltage): m48t58: 4.5v ≤vpfd ≤ 4.75v; m48t58y: 4.2v ≤ vpfd ≤ 4.5v; (7)self-contained battery and crystal in the caphat dip package; (8)packaging includes a 28-lead soic and snaphat top (to be ordered separately); (9)soic package provides direct connection for a snaphat top which; (10)contains the battery and crystal; (11)pin and function compatible with jedec standard 8k x 8 srams.

Diagrams

M48T58-70PC1 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
M48T58-70PC1
M48T58-70PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 70ns

Data Sheet

0-1: $10.67
1-10: $10.28
10-100: $9.52
100-250: $9.01
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
M48T02
M48T02

Other


Data Sheet

Negotiable 
M48T02-150PC1
M48T02-150PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 150ns

Data Sheet

0-1: $6.59
1-10: $6.04
10-100: $5.81
100-250: $5.58
M48T02-200PC1
M48T02-200PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 200ns

Data Sheet

Negotiable 
M48T02-70PC1
M48T02-70PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 70ns

Data Sheet

0-1: $6.59
1-10: $6.04
10-100: $5.81
100-250: $5.58
M48T08
M48T08

Other


Data Sheet

Negotiable 
M48T08-100PC1
M48T08-100PC1

STMicroelectronics

Real Time Clock 64K (8Kx8) 100ns

Data Sheet

0-1: $9.89
1-10: $8.61
10-100: $7.78
100-250: $7.10