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ISL12020M Arkusz danych(PDF) 7 Page - Intersil Corporation

Numer części ISL12020M
Szczegółowy opis  Low Power RTC with Battery Backed SRAM, Integrated 짹5ppm Temperature Compensation and Auto Daylight Saving
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Producent  INTERSIL [Intersil Corporation]
Strona internetowa  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL12020M Arkusz danych(HTML) 7 Page - Intersil Corporation

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7
FN6667.4
February 11, 2010
tHD:STA
START Condition Hold Time
From SDA falling edge
crossing 30% of VDD to
SCL falling edge
crossing 70% of VDD.
600
ns
tSU:DAT
Input Data Setup Time
From SDA exiting the
30% to 70% of VDD
window, to SCL rising
edge crossing 30% of
VDD.
100
ns
tHD:DAT
Input Data Hold Time
From SCL falling edge
crossing 30% of VDD to
SDA entering the 30%
to 70% of VDD window.
20
900
ns
tSU:STO
STOP Condition Setup Time
From SCL rising edge
crossing 70% of VDD, to
SDA rising edge
crossing 30% of VDD.
600
ns
tHD:STO
STOP Condition Hold Time
From SDA rising edge to
SCL falling edge. Both
crossing 70% of VDD.
600
ns
tDH
Output Data Hold Time
From SCL falling edge
crossing 30% of VDD,
until SDA enters the
30% to 70% of VDD
window.
0
ns
tR
SDA and SCL Rise Time
From 30% to 70% of
VDD.
20 + 0.1 x
Cb
300
ns
16
tF
SDA and SCL Fall Time
From 70% to 30% of
VDD.
20 + 0.1 x
Cb
300
ns
16
Cb
Capacitive Loading of SDA or
SCL
Total on-chip and
off-chip
10
400
pF
16
RPU
SDA and SCL Bus Pull-up
Resistor Off-chip
Maximum is determined
by tR and tF.
For Cb = 400pF, max is
about 2kΩ~2.5kΩ.
For Cb = 40pF, max is
about 15kΩ~20kΩ
1
16
NOTES:
8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits
established by characterization and are not production tested.
9. Specified at +25°C.
10. Minimum VDD and/or VBAT of 1V to sustain the SRAM. The value is based on characterization and it is not tested.
11. Temperature Conversion is inactive below VBAT = 2.7V. Device operation is not guaranteed at VBAT<1.8V.
12. IRQ/FOUT Inactive.
13. VDD > VBAT +VBATHYS
14. In order to ensure proper timekeeping, the VDD SR- specification must be followed.
15. Limits should be considered typical and are not production tested.
16. These are I2C specific parameters and are not tested, however, they are used to set conditions for testing devices
to validate specification.
I2C Interface Specifications Test Conditions: VDD = +2.7 to +5.5V, Temperature = -40°C to +85°C, unless otherwise
specified. Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 8)
TYP
(Note 9)
MAX
(Note 8) UNITS
NOTES
ISL12020M


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