ADP5588 Analog Devices, ADP5588 Datasheet - Page 4

• Manufacturer Part Number: ADP5588
• Description: Mobile I/O Expander and QWERTY Keypad Controller
• Manufacturer: Analog Devices

Specifications of ADP5588

• Vin Range: 1.8 to 3.0V
• Number Of I/os: 16
• Application: Mobil I-0 Exp-Keybd Cont,Mobil I-O Expander
• Qwerty Keypad: Yes
• Other Functions: I2C I/O
• Function Flag: Mobil I-O
• Package: 24-Lead LFCSP

ADP5588
Table 3. Comparator Input Capacitor
Parameter
Comparator Input Capacitor Value
Table 4. Capacitance Loading
Parameter
I/O Input Capacitance
I/O Output Loading Capacitance
Capacitive Load for Each Bus Line
1
2
Table 5. AC Characteristics
Parameter
Delay from Reset Deassertion to I
Keypad Unlock Timer
Keypad Interrupt Mask Timer
Debounce
Filter Time
1
Table 6. I
Parameter
SCL Clock Frequency
SCL High Time
SCL Low Time
Data Setup Time
Data Hold Time
Setup Time for Repeated Start
Hold Time for Start/Repeated Start
Bus Free Time for Stop and Start
Setup Time for Stop Condition
Rise Time for SCL and SDA
Fall Time for SCL and SDA
Pulse Width of Suppressed Spike
1
2
Guaranteed by design.
C
Guaranteed by design.
Guaranteed by design.
t
R
B
and t
= total capacitance of one bus line in picofarads.
F
are measured between 0.3 × V
2
C AC Electrical Characteristics
SDA
SCL
S = START CONDITION
Sr = REPEATED START CONDITION
P = STOP CONDITION
S
2
2
1
t
LOW
1
2
CC
C Access
and 0.7 × V
t
R
t
HD, DAT
1
CC
.
t
SU, DAT
Figure 2. I
t
HIGH
Rev. C | Page 4 of 28
2
C Interface Timing Diagram
Symbol
C
C
C
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
Symbol
C
Symbol
R
T
T
T
T
SCL
HIGH
LOW
SU
HD
SU
HD
BUF
SU
R
F
SP
t
IN
OUT
B
KUT
KIMT
D
TTR
COMP
STD
t
F
2
SU, STA
,
,
,
,
,
DAT
STA
STO
DAT
STA
t
F
Sr
t
HD, STA
Min
0.6
1.3
100
0
0.6
0.6
1.3
0.6
20 + 0.1 C
20 + 0.1 C
0
Min
Min
Min
60
0.070
B
B
t
Typ
SP
Typ
0.1
Typ
1
Typ
7
31
50
t
SU, STO
t
R
P
t
BUF
Max
10
50
400
Max
400
0.9
300
300
50
Max
Max
12
S
Data Sheet
Unit
μF
Unit
pF
pF
pF
Unit
μs
sec
sec
μs
sec
Unit
kHz
μs
μs
ns
μs
μs
μs
μs
μs
ns
ns
μs