m48t128y STMicroelectronics, m48t128y Datasheet - Page 5

• Manufacturer Part Number: m48t128y
• Description: 5.0 Or 3.3v, 1 Mbit 128 Kb X 8 Timekeeper Sram
• Manufacturer: STMicroelectronics

Figure 4. Block Diagram
32,768 Hz
CRYSTAL
LITHIUM
CELL
OSCILLATOR AND
VOLTAGE SENSE
CLOCK CHAIN
SWITCHING
CIRCUITRY
AND
V CC
POWER
V PFD
SRAM ARRAY
TIMEKEEPER
131,064 x 8
REGISTERS
8 x 8
V SS
M48T128Y, M48T128V*
A0-A16
DQ0-DQ7
E
W
G
AI01804
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