Datasheet > ADP5586

ADP5586

更新时间： 2024-11-06 12:51:55

品牌	Logo	应用领域
亚德诺 - ADI		解码器
页数	文件大小	规格书
44页	612K
描述
Keypad Decoder and I/O Port Expander

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ADP5586 数据手册

Keypad Decoder and I/O Port Expander

Data Sheet

ADP5586

FEATURES

FUNCTIONAL BLOCK DIAGRAM

VDD

GND

16-element FIFO for event recording

10 configurable I/Os allowing for such functions as

Keypad decoding for a matrix of up to 5 × 5

Key press/release interrupts

ADP5586

UVLO

POR

OSCILLATOR

RST/R5

SDA

SCL

GPIO functions

I C INTERFACE

GPI with selectable interrupt level

100 kΩ or 300 kΩ pull-up resistors

300 kΩ pull-down resistors

GPO with push-pull or open drain

Programmable logic block

INT

KEY SCAN

AND

DECODE

GPI SCAN

AND

DECODE

REGISTERS

Pulse generators

Periods and on times

I/O

CONFIG

LOGIC

Above 30 sec in 125 ms increments

Up to 255 ms in 1 ms increments

Reset generator

I²C interface with Fast-mode Plus (Fm+) support of up to 1 MHz

Open-drain interrupt output

PULSE

GEN 1

PULSE

GEN 2

RESET

GEN

16-ball WLCSP, 1.59 mm × 1.59 mm

Figure 1.

APPLICATIONS

Keypad entries and input/output expansion capabilities

Smartphones, remote controls, and cameras

Healthcare, industrial, and instrumentation

GENERAL DESCRIPTION

The ADP5586 is a 10-input/output port expander with a built-in

keypad matrix decoder, programmable logic, reset generator, and

pulse generators. Input/output expander ICs are used in portable

devices (phones, remote controls, and cameras) and nonportable

applications (healthcare, industrial, and instrumentation). I/O

expanders can be used to increase the number of I/Os available

to a processor or to reduce the number of I/Os required through

interface connectors for front panel designs.

as events via the FIFO, eliminating the need to monitor different

registers for event changes. The ADP5586 is equipped with a

FIFO to store up to 16 events. Events can be read back by the

processor via an I²C-compatible interface.

The ADP5586 eliminates the need for the main processor to

monitor the keypad, thus reducing power consumption and/or

increasing processor bandwidth for performing other functions.

The programmable logic functions allow common logic require-

ments to be integrated as part of the GPIO expander, thus saving

board area and cost.

The ADP5586 handles all key scanning and decoding and can

flag the main processor, via an interrupt line, that new key events

have occurred. GPI changes and logic changes can also be tracked

Rev. 0

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Technical Support

www.analog.com

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与ADP5586相关器件

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ADP5587ACPZ-1-R7	ADI	获取价格	Mobile I/O Expander and QWERTY Keypad Controller
ADP5587ACPZ-R7	ADI	获取价格	Mobile I/O Expander and QWERTY Keypad Controller
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