DS1254 Maxim, DS1254 Datasheet - Page 12

• Manufacturer Part Number: DS1254
• Description: The DS1254 is a fully nonvolatile static RAM (NV SRAM) (organized as 2M words by 8 bits) with built-in real-time clock
• Manufacturer: Maxim

Figure 9. Power-Up/Power-Down Waveform Timing (Note 14)
Figure 10. Battery Warning Detection (Note 3)
BATTERY TEST
V
V
PF(max)
PF(min)
ACTIVE
CE
WE
BW
V
V
V
BW
V
BAT
CC
BAT
CC
,
t
PD
t
F
t
BPU
t
BTPW
t
FB
t
BTC
2.6V
12 of 17
SLEWS WITH V
SLEWS WITH V
t
DR
t
BW
CC
CC
t
R
t
BPU
t
REC
DS1254