Datasheet > ADP5585

ADP5585

更新时间： 2024-09-16 08:19:39

品牌	Logo	应用领域
亚德诺 - ADI		解码器
页数	文件大小	规格书
2页	64K
描述
Keypad Decoder and I/O Expansion GPIO functions GPIO functions

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ADP5585 数据手册

Keypad Decoder and I/O Expansion

ADP5585

FEATURES

FUNCTIONAL BLOCK DIAGRAM

VDD

GND

16 element FIFO for event recording

10 configurable I/Os allowing functions such as

Key pad decoding for a matrix of up to 5 × 5

11 GPIOs (5 × 6) with an ADP5585ACBZ-01-R7 option

Key press/release interrupts

ADP5585

UVLO

POR

OSCILLATOR

RST/R5

SDA

SCL

I C INTERFACE

GPIO functions

INT

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

PWM generator

Internal PWM generation

External PWM with internal PWM AND function

Reset generators

I²C interface with fast mode plus (Fm+) support of up to 1 MHz

Open-drain interrupt output

KEY SCAN

AND

DECODE

GPI SCAN

AND

DECODE

REGISTERS

I/O

CONFIG

LOGIC

PWM

RESET1

GEN

RESET2

GEN

16-ball WLCSP, 1.59 mm × 1.59 mm

Figure 1.

APPLICATIONS

Keypad entries and input/output expansion capabilities

Smart phones, remote controls, and cameras

Healthcare, industrial, and instrumentation

GENERAL DESCRIPTION

The ADP5585 is a 10 input/output port expander with a built-in

keypad matrix decoder, programmable logic, reset generator, and

PWM generator. 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 ADP5585 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 ADP5585 frees up the main processor from having to

monitor the keypad, thereby reducing power consumption

and/or increasing processor bandwidth for performing other

functions.

The ADP5585 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

The programmable logic functions allow common logic require-

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

saving board area and cost.

For more information about the ADP5585, including the complete data sheet, contact your local Analog Devices, Inc., sales office at

www.analog.com/sales.

Rev. Sp0

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

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

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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.

中文翻译

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与ADP5585相关器件

型号	品牌	获取价格	描述	数据表
ADP5585ACBZ-00-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585ACBZ-01-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585ACBZ-02-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585ACBZ-04-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585ACPZ-00-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585ACPZ-01-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585ACPZ-03-R7	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5585CP-EVALZ	ADI	获取价格	Keypad Decoder and I/O Expansion
ADP5586	ADI	获取价格	Keypad Decoder and I/O Port Expander
ADP5586ACBZ-00-R7	ADI	获取价格	Keypad Decoder and I/O Port Expander

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