Product Summary

The M48T12-150PC TIMEKEEPER RAM is a 2Kb x8 non-volatile static RAM and real time clock which is pin and functional compatible with the DS1642. A special 24 pin 600mil DIP CAPHATE package houses the M48T12-150PC silicon with a quartz crystal and a long life lithium button cell to form a highly integrated battery backed-upmemoryand realtime clock solution.

Parametrics

Absolute maximum ratings: (1)TA, Ambient Operating Temperature: 0 to 70 ℃ ; (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 7 V; (6)IO, Output Current: 20 mA; (7)PD, Power Dissipation: 1 W.

Features

Features: (1)integrated ultralow power sram, real time clock and power-fail controlcircuit; (2)bytewidee ram-likeclock access; (3)bcd coded year, month, day, date, hours, minutes and seconds; (4)typicalclock accuracy of ± 1 minute a month, at 25℃; (5)software controlled clock calibrationfor high accuracy applications; (6)automaticpower-failchipdeselectand writeprotection; (7)writeprotect voltages(vpfd = power-fail deselect voltage): 4.2v ≤ vpfd ≤ 4.5v; (8)self-contained battery and crystal in the caphat dip package; (9)pin and function compatible with JEDEC standard 2Kb x8 SRAMs.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
M48T12-150PC1
M48T12-150PC1

STMicroelectronics

Real Time Clock 16K (2Kx8) 150ns

Data Sheet

0-1: $8.27
1-10: $7.51
10-100: $6.38
100-250: $5.75
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