ADP5586CB-EVALZ Analog Devices, ADP5586CB-EVALZ Datasheet - Page 8

• Manufacturer Part Number: ADP5586CB-EVALZ
• Description: Interface Development Tools
• Manufacturer: Analog Devices
• Type: I/O Expansionr
• Series: ADP5586r

Specifications of ADP5586CB-EVALZ

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: ADP5586
• Interface Type: I2C
• Operating Supply Voltage: 1.65 V to 3.6 V
• Description/function: Evaluation board for keypad decoder and I/O expander
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Current: 30 uA
• For Use With: ADP5586

ADP5586
DEVICE ENABLE
When sufficient voltage is applied to VDD and the RST pin is
driven with a logic high level, the
mode with all settings at default. The user can configure the
device via the I
ADP5586
The RST pin features a debounce filter.
If the ADP5586ACBZ-01-R7 device model is used, the RST pin
acts as an additional row pin (R5). To reset the part without a
reset pin, either bring VDD below the UVLO threshold, or set
the SW_RESET bit to 1 (Register 0x3D, Bit 2).
DEVICE OVERVIEW
The
Each pin can be programmed to enable the device to carry out
its various functions, as follows:





All 10 input/output pins have an I/O structure as shown in
Figure 5.
ADP5586
Keypad matrix decoding (five-column by five-row matrix
maximum)
General-purpose I/O expansion (up to 10 inputs/outputs)
Reset generator
Logic function building blocks (up to three inputs and one
output)
Two pulse generators
enters a reset state and all settings return to default.
DRIVE
I/O
contains 10 multiconfigurable input/output pins.
2
C interface. When the RST pin is low, the
VDD
Figure 5. I/O Structure
100kΩ
DEBOUNCE
300kΩ
300kΩ
ADP5586
starts up in standby
I/O
Rev. 0 | Page 8 of 44
Each I/O can be pulled up with a 100 kΩ or 300 kΩ resistor or
pulled down with a 300 kΩ resistor. For logic output drive, each
I/O has a 5 mA PMOS source and a 10 mA NMOS sink for a push-
pull type output. For open-drain output situations, the 5 mA
PMOS source is not enabled. For logic input applications, each
I/O can be sampled directly or, alternatively, sampled through
a debounce filter.
The I/O structure shown in Figure 5 allows for all GPI and GPO
functions, as well as PWM and clock divide functions. For key
matrix scan and decode, the scanning circuit uses the 100 kΩ or
300 kΩ resistor for pulling up the keypad row pins and the 10 mA
NMOS sinks for grounding the keypad column pins (see the
Key Scan Control section for details about key decoding).
Configuration of the device is carried out by programming an
array of internal registers via the I
status and pending interrupts can be flagged to an external
processor by using the INT pin.
The
the options that are available for each model of the ADP5586.
Contact your local Analog Devices, Inc., field applications
engineers for availability and/or alternate configurations.
Table 6. Matrix Options by Device Model
Model
ADP5586ACBZ-00-R7
ADP5586ACBZ-01-R7
ADP5586ACBZ-03-R7
1
Contact Analog Devices for availability of configurations not shown here.
ADP5586
is offered with three feature sets. Table 6 lists
Description
GPIO pull-down on startup
5-row × 5-column matrix
Row 5 added to GPIOs
6-row × 5-column matrix
Alternate I
5-row × 5-column matrix
2
C interface. Feedback of device
2
C address (0x30)
1
Data Sheet