Data Sheet ADP5588
Rev. C | Page 3 of 28
SPECIFICATIONS
T
A
= T
J
= −40°C to +85°C, unless otherwise noted.
DC ELECTRICAL CHARACTERISTICS
Table 1. General DC Electrical Characteristics
Parameter Symbol Conditions Min Typ Max Unit
SUPPLY VOLTAGE
VCC Input Voltage Range V
CC
1.7 3.0 V
Photosensor Voltage V
PHOTOSENSOR
V
CC
+ 0.2
Supply Current
1
I
CC
V
CC
= 1.8 V to 3.0 V, T
A
= −4C to +8C 1 10 A
With One Key Press I
CC
V
CC
= 1.8 V, T
A
= −40°C to +85°C 55 90 A
With One Key Press I
CC
V
CC
= 3.0 V, T
A
= −40°C to +85°C 100 200 A
With GPI Low (Pull-Up Enabled)
2
I
CC
V
CC
= 1.8 V to 3.0 V, T
A
= −4C to +8C 20 50 A
With GPI Low (Pull-Up Disabled) I
CC
V
CC
= 1.8 V to 3.0 V, T
A
= −4C to +8C 2 10 A
With One GPO Active
3
I
CC
V
CC
= 1.8 V, T
A
= −40°C to +85°C 50 A
AMBIENT LIGHT SENSOR (CMP_IN1, CMP_IN2)
Maximum Sensor Range I
SENSOR
V
CC
= 1.8 V to 3.0 V, T
A
= 25°C 0.85 1.0 1.15 mA
Sensor Supply Current (One Comparator Enabled,
0 Minimum Input Current)
4
I
CC
V
CC
= 1.8 V to 3.0 V 100 150 A
Sensor Current (One Comparator Enabled,
Maximum Input Current)
4
I
CC
V
CC
= 1.8 V to 3.0 V 160 200 A
Sensor Current (Both Comparators Enabled,
Minimum Input Current)
4
I
CC
V
CC
= 1.8 V to 3.0 V 130 180 A
Sensor Current (Both Comparators Enabled,
Maximum Input Current)
4
I
CC
V
CC
= 1.8 V to 3.0 V 240 400 A
OSCILLATOR CURRENT
Oscillator Current (Enabled) I
CC
V
CC
= 1.8 V to 3.0 V 40 A
1
Operating current measured with I/Os defaulting as GPIs with all pull-ups enabled and all inputs open.
2
With one GPI low.
3
Load = 100 k.Ω
4
Photosensor maximum voltage = V
CC
+ 0.2.
Table 2. I/O DC Electrical Characteristics
Parameter Symbol Conditions Min Typ Max Unit
INPUT LOGIC LEVELS (SCL, SDA, RST, C0 to C9, R0 to R7)
1
Logic Low Input Voltage V
IL
1.7 V V
IO
≤ 3.0 V 0.2 x V
CC
V
Logic High Input Voltage V
IH
1.7 V V
IO
≤ 3.0 V 0.65 x V
CC
V
Schmitt Trigger Hysteresis V
HYST
0.10 V
Input Leakage Current V
I-LEAKAGE
1.7 V V
IO
≤ 3.0 V −1 1 µA
OUTPUT LOGIC LEVELS (C0 to C9, R0 to R7)
Logic Low Output Voltage V
OL
I
SINK
= 1 mA 0.40 V
Output High Voltage V
OH
I
SOURCE
= 1 mA V
CC
− 0.3 V V
OUTPUT LOGIC LEVELS (INT, SDA)
Output Low Voltage V
OL
I
SINK
= 3 mA
1.7 V ≤ V
CC
≤ 3.0 V
0.40 V
Output High Voltage V
OH
1.7 V V
CC
≤ 3.0 V 0.95 × V
CC
V
Logic High Leakage Current V
O-LEAKAGE
1.7 V V
CC
≤ 3.0 V 0.1 1 µA
PULL-UP RESISTANCE FOR GPIOs (C0 to C9, R0 to R7)
2
R
PULL-UP
100 kΩ
1
Power-up default current. All I/Os default as GPIs and are open; C8 and C9 default as GPIs; I
2
C is idle.
2
GPIO internal pull-ups are designed to 100 kΩ.
ADP5588 Data Sheet
Rev. C | Page 4 of 28
Table 3. Comparator Input Capacitor
Parameter Symbol Min Typ Max Unit
Comparator Input Capacitor Value C
COMP
0.1 μF
Table 4. Capacitance Loading
1
Parameter Symbol Min Typ Max Unit
I/O In
p
ut Ca
acitance C
IN
1 10
p
F
I/O Out
p
ut Loadin
g
Ca
p
acitance C
OUT
50
p
F
Ca
p
acitive Load for Each Bus Line C
B
2
400
p
F
1
Guaranteed by design.
2
C
B
= total capacitance of one bus line in picofarads.
Table 5. AC Characteristics
1
Parameter Symbol Min Typ Max Unit
Delay from Reset Deassertion to I
2
C Access R
STD
60 μs
Keypad Unlock Timer T
KUT
7 sec
Keypad Interrupt Mask Timer T
KIMT
31 sec
Debounce T
D
50 μs
Filter Time T
TTR
0.070 12 sec
1
Guaranteed by design.
Table 6. I
2
C AC Electrical Characteristics
1
Parameter Symbol Min Typ Max Unit
SCL Clock Frequency f
SCL
400 kHz
SCL High Time t
HIGH
0.6 μs
SCL Low Time t
LOW
1.3 μs
Data Setup Time t
SU
,
DAT
100 ns
Data Hold Time t
HD
,
DAT
0 0.9 μs
Setup Time for Repeated Start t
SU
,
STA
0.6 μs
Hold Time for Start/Repeated Start t
HD
,
STA
0.6 μs
Bus Free Time for Stop and Start t
BUF
1.3 μs
Setup Time for Stop Condition t
SU
,
STO
0.6 μs
Rise Time for SCL and SDA
2
t
R
20 + 0.1 C
B
300 ns
Fall Time for SCL and SDA
2
t
F
20 + 0.1 C
B
300 ns
Pulse Width of Suppressed Spike t
SP
0 50 μs
1
Guaranteed by design.
2
t
R
and t
F
are measured between 0.3 × V
CC
and 0.7 × V
CC
.
SDA
SCL
S
S = START CONDITION
Sr = REPEATED START CONDITION
P = STOP CONDITION
Sr P S
t
LOW
t
R
t
HD, DAT
t
HIGH
t
SU, DAT
t
F
t
F
t
SU, STA
t
HD, STA
t
SP
t
SU, STO
t
BUF
t
R
07673-002
Figure 2. I
2
C Interface Timing Diagram
Data Sheet ADP5588
Rev. C | Page 5 of 28
ABSOLUTE MAXIMUM RATINGS
Table 7.
Parameter Rating
V
CC
3 V to +4.0 V
R0 to R7, C0 to C9 3 V to V
CC
+ 0.3 V
SCL 3 V to V
CC
+ 0.3 V
SDA 3 V to V
CC
+ 0.3 V
RST
3 V to V
CC
+ 0.3 V
INT
3 V to V
CC
+ 0.3 V
GND 0.3 V to +0.3 V
Operating Ambient Temperature Range 40°C to +85°C
Operating Junction Temperature Range 40°C to +125°C
Storage Temperature Range 65°C to +150°C
ESD Machine Model ±200 V
ESD Human Body Model ±2000 V
ESD Charged Device Model ±1000 V
Soldering Condition JEDEC J-STD-020
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θ
JA
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 8. Thermal Resistance
Package Type θ
JA
θ
JC
Unit
24-Lead LFCSP_VQ 57.8 9.4 °C/W
Maximum Power 600 mW
ESD CAUTION

ADP5588ACPZ-R7

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Interface - I/O Expanders QWERTY Keypad Cntlr
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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