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ADP5588ACPZ-R7 数据表(PDF) 4 Page - Analog Devices

部件名 ADP5588ACPZ-R7
功能描述  Keypad I/O Expander
PDF  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP5588ACPZ-R7 数据表(HTML) 4 Page - Analog Devices

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ADP5588
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Table 3. Comparator Input Capacitor
Parameter
Symbol
Min
Typ
Max
Unit
Comparator Input Capacitor Value
CCOMP
0.1
μF
Table 4. Capacitance Loading1
Parameter
Symbol
Min
Typ
Max
Unit
I/O Input Capacitance
CIN
1
10
pF
I/O Output Loading Capacitance
COUT
50
pF
Capacitive Load for Each Bus Line
CB2
400
pF
1 Guaranteed by design.
2 CB = total capacitance of one bus line in picofarads.
Table 5. AC Characteristics1
Parameter
Symbol
Min
Typ
Max
Unit
Delay from Reset Deassertion to I2C Access
RSTD
60
μs
Keypad Unlock Timer
TKUT
7
sec
Keypad Interrupt Mask Timer
TKIMT
31
sec
Debounce
TD
50
μs
Filter Time
TTTR
0.070
12
sec
1 Guaranteed by design.
Table 6. I2C AC Electrical Characteristics1
Parameter
Symbol
Min
Typ
Max
Unit
SCL Clock Frequency
fSCL
400
kHz
SCL High Time
tHIGH
0.6
μs
SCL Low Time
tLOW
1.3
μs
Data Setup Time
tSU, DAT
100
ns
Data Hold Time
tHD, DAT
0
0.9
μs
Setup Time for Repeated Start
tSU, STA
0.6
μs
Hold Time for Start/Repeated Start
tHD, STA
0.6
μs
Bus Free Time for Stop and Start
tBUF
1.3
μs
Setup Time for Stop Condition
tSU, STO
0.6
μs
Rise Time for SCL and SDA2
tR
20 + 0.1 CB
300
ns
Fall Time for SCL and SDA2
tF
20 + 0.1 CB
300
ns
Pulse Width of Suppressed Spike
tSP
0
50
μs
SDA
SCL
S
1 Guaranteed by design.
2 tR and tF are measured between 0.3 × VCC and 0.7 × VCC.
S = START CONDITION
Sr = REPEATED START CONDITION
P = STOP CONDITION
Sr
P
S
tLOW
tR
tHD, DAT
tHIGH
tSU, DAT
tF
tF
tSU, STA
tHD, STA
tSP
tSU, STO
tBUF
tR
Figure 2. I2C Interface Timing Diagram



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