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12032IVZ データシートの表示(PDF) - Intersil
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12032IVZ
Low Power RTC with Battery Backed SRAM and 50/60 Cycle AC Input and Xtal Back-up
Intersil
12032IVZ Datasheet PDF : 26 Pages
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ISL12032
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
Symbol Table
WAVEFORM INPUTS
Must be steady
OUTPUTS
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
EQUIVALENT AC OUTPUT LOAD CIRCUIT FOR V
DD
= 5V
5.0V
SDA
AND
IRQ/F
OUT
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
t
SU:STO
t
BUF
7
FN6618.2
April 16, 2009
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