ADP5587_1 AD [Analog Devices], ADP5587_1 Datasheet - Page 4

• Manufacturer Part Number: ADP5587_1
• Description: Mobile I/O Expander and QWERTY Keypad Controller
• Manufacturer: AD [Analog Devices]

ADP5587
AC CHARACTERISTICS
Table 4. General AC Characteristics
Parameter
Delay from Reset Deassertion to I
Keypad Unlock Timer
Keypad Interrupt Mask Timer
Debounce
1
Table 5. 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.
Guaranteed by design.
t
R
and t
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
t
LOW
2
CC
C Access
and 0.7 × V
1
t
R
t
1
HD, DAT
CC
.
t
SU, DAT
Figure 2. I
t
HIGH
Rev. B | Page 4 of 24
2
C Interface Timing Diagram
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
Symbol
R
T
T
T
SCL
HIGH
LOW
SU
HD
SU
HD
BUF
SU
R
F
SP
KUT
KIMT
D
STD
t
t
F
,
,
,
SU, STA
,
,
DAT
STA
STO
DAT
STA
t
F
Sr
Min
60
Min
0.6
1.3
100
0
0.6
0.6
1.3
0.6
20 + 0.1 C
20 + 0.1 C
0
t
HD, STA
B
B
Typ
7
31
275
Typ
t
SP
t
SU, STO
t
R
P
t
Max
Max
400
0.9
300
300
50
BUF
S
Unit
μs
sec
sec
μs
Unit
kHz
μs
μs
ns
μs
μs
μs
μs
μs
ns
ns
μs