ISL12025 Intersil Corporation, ISL12025 Datasheet - Page 5

• Manufacturer Part Number: ISL12025
• Description: Real-Time Clock/Calendar
• Manufacturer: Intersil Corporation

Serial Interface (I
NOTES:
10. t
SYMBOL
3. RESET Inactive (no reset).
4. V
5. V
6. Bit BSW = 0 (Standard Mode), V
7. Specified at +25°C.
8. In order to ensure proper timekeeping, the V
9. Parameter is not 100% tested.
t
t
t
t
t
t
SU:STO
HD:STO
SU:STA
HD:STA
SU:DAT
HD:DAT
t
t
Cpin
HIGH
LOW
t
t
sequence of a serial interface Write operation) to the end of the self-timed internal non-volatile write cycle.
Cb
WC
DH
WC
t
t
R
F
IL
RESET
= V
is the minimum cycle time to be allowed for any non-volatile Write by the user (it is the time from valid STOP condition at the end of Write
DD
Clock LOW Time
Clock HIGH Time
START Condition Setup Time
START Condition Hold Time
Input Data Setup Time
Input Data Hold Time
STOP Condition Setup Time
STOP Condition Hold Time for
Read, or Volatile Only Write
Output Data Hold Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Capacitive loading of SDA or SCL Total on-chip and off-chip
SDA, and SCL Pin Capacitance
Non-Volatile Write Cycle Time
= 2.63V (VDD must be greater than V
x 0.1, V
2
IH
PARAMETER
C) Specifications
= V
DD
x 0.9, f
5
BAT
SCL
≥1.8V.
= 400kHz.
(Continued)
DD SR-
Measured at the 30% of V
crossing.
Measured at the 70% of V
crossing.
SCL rising edge to SDA falling
edge. Both crossing 70% of V
From SDA falling edge crossing
30% of V
crossing 70% of V
From SDA exiting the 30% to 70%
of V
crossing 30% of V
From SCL falling edge crossing
70% of V
30% to 70% of V
From SCL rising edge crossing
70% of V
crossing 30% of V
From SDA rising edge to SCL
falling edge. Both crossing 70% of
V
From SCL falling edge crossing
30% of V
30% to 70% of V
From 30% to 70% of V
From 70% to 30% of V
DD
RESET
DD
.
specification must be followed.
window, to SCL rising edge
), V
DD
DD
DD
DD
CONDITIONS
, to SDA rising edge
, until SDA enters the
BAT
to SCL falling edge
to SDA entering the
ISL12025
= 0V.
DD
DD
DD
DD
DD
window.
window.
.
.
.
DD
DD
DD
DD
DD
.
0.1 x Cb
0.1 x Cb
1300
20 +
20 +
MIN
600
600
600
100
600
600
10
0
0
TYP
12
MAX
250
250
400
10
20
UNITS
ms
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
October 18, 2006
NOTES
FN6371.1
10