ISL12025IVZ Intersil, ISL12025IVZ Datasheet - Page 24

• Manufacturer Part Number: ISL12025IVZ
• Description: IC RTC/CALENDAR EEPROM 8-TSSOP
• Manufacturer: Intersil
• Type: Clock/Calendar/Supervisor/EEPROMr

Specifications of ISL12025IVZ

• Memory Size: 4K (512 x 8)
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

.
MODE
TABLE 9. I
C
D
SBIB BIT
V
V
I
DD
I
BAT
DD
BAT
2
RESET
C, LV RESET, AND BATTERY BACKUP OPERATION SUMMARY (Shaded Row is same as X1227 operation) (Continued)
1
1
RESET
V
(2.2V)
V
(2.2V)
TRIP
TRIP
V
BSW
V
BIT
RESET
0
1
RESET
24
V
BAT
(2.63V)
(2.63V)
V
V
Standard Mode,
SWITCHOVER
BAT
Legacy Mode,
TRIP
(3.0V)
V
VOLTAGE
DD
FIGURE 29. EXAMPLE RESET OPERATION IN MODE A OR C
(3.0V)
VBAT
(VDD POWER, V
= 2.2V typ
< V
BAT
FIGURE 30. RESET OPERATION IN MODE D
tPURST
tPURST
I
2
BAT
C ACTIVE IN
BACKUP?
BATTERY
NOT CONNECTED)
NO
NO
ISL12025
I
2
C BUS ACTIVE
I
2
EE PROM WRITE/READ
IN BATTERY BACKUP?
C BUS ACTIVE
NO
NO
Operation of I
V
communications. Battery switchover at
V
Operation of I
V
DD
TRIP
BAT
= V
, whichever is higher.
.
RESET
(BATTERY BACKUP MODE)
(BATTERY BACKUP MODE)
2
2
C bus down to
C bus down to V
, then below that no
NOTES
August 13, 2008
RESET
FN6371.3
or