This document describes the features and characteristics of the M48T08 and M48T18 series, including integrated ultra-low power SRAM, real-time clock, power-fail control circuit, and battery. It also includes BCD coded year, month, day, date, hours, minutes, and seconds.
The document describes the M48T08/18/08Y TIMEKEEPER® RAM, an 8K x 8 non-volatile static RAM and real-time clock. It is available in two special packages: a 28-pin PCDIP CAPHAT™ package housing the silicon with a quartz crystal and lithium battery, and a 28-pin SOIC package that connects to a separate SNAPHAT® housing for power backup.
| Clock Accuracy | +/- 1 minute per month at 25°C |
|---|---|
| Supply Voltage (M48T08) | 4.75 to 5.5V |
| Supply Voltage (M48T18/08Y) | 4.5 to 5.5V |
| Package Type | 28-pin PCDIP or SOIC |
The typical clock accuracy is +/- 1 minute per month at 25°C.
Yes, lead-free components are compliant with the RoHS Directive.