M48T58, M48T58Y Description
Doc ID 2412 Rev 8 7/33
Figure 4. Block diagram
AI01377C
LITHIUM
CELL
OSCILLATOR AND
CLOCK CHAIN
V
PFD
FT
V
CC
V
SS
32,768 Hz
CRYSTAL
VOLTAGE SENSE
AND
SWITCHING
CIRCUITRY
8 x 8 BiPORT
SRAM ARRAY
8184 x 8
SRAM ARRAY
A0-A12
DQ0-DQ7
E1
E2
W
G
POWER
