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Número de pieza
componentes Descripción
ISL12023 Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
ISL12023
Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation ±5ppm with Auto Daylight Saving
Intersil
ISL12023 Datasheet PDF : 28 Pages
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ISL12023
SDA vs SCL Timing
t
F
t
HIGH
t
LOW
t
R
SCL
t
SU:STA
SDA
(INPUT TIMING)
SDA
(OUTPUT TIMING)
t
SU:DAT
t
HD:STA
t
HD:DAT
t
AA
t
DH
EQUIVALENT AC OUTPUT LOAD CIRCUIT FOR V
DD
= 5V
5.0V
SDA,
IRQ AND FOUT
1533
Ω
FOR V
OL
= 0.4V
AND I
OL
= 3mA
100pF
FIGURE 1. STANDARD OUTPUT LOAD FOR TESTING THE
DEVICE WITH V
DD
= 5.0V
Symbol Table
WAVEFORM INPUTS
OUTPUTS
Must be steady
Will be steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes Allowed
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not Known
N/A
Center Line is
High Impedance
t
SU:STO
t
BUF
6
FN6682.2
June 24, 2009
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