The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
M48T129Y M48T129V
5.0 or 3.3 V, 1 Mbit (128 Kbit x 8) TIMEKEEPER® SRAM
Not recommended for new design
Features
■ Integrated, ultra low power SRAM, real-time
clock, power-fail control circuit, battery, and
crystal
)■ BCD coded century, year, month, day, date, t(shours, minutes, and seconds c■ Battery low warning flag du■ Automatic power-fail chip deselect and WRITE roprotection P■ Two WRITE protect voltages: te(VPFD = power-fail deselect voltage) le– M48T129Y: VCC = 4.5 to 5.5 V;
4.2 V ≤ VPFD ≤ 4.5 V
so– M48T129V: VCC = 3.0 to 3.6 V; b2.7 V ≤ VPFD ≤ 3.