參數(shù)資料
型號(hào)： ADP5585ACPZ-01-R7
廠(chǎng)商： Analog Devices Inc
文件頁(yè)數(shù)： 1/40頁(yè)
文件大?。?/td> 0K
描述： IC PORT EXPANDER 10I/O 16LFCSP
標(biāo)準(zhǔn)包裝： 1,500
系列： *
Keypad Decoder and I/O Expansion
Data Sheet
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2011–2013 Analog Devices, Inc. All rights reserved.
FEATURES
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 ADP5585ACxZ-01-R7 models
Key press/release interrupts
GPIO functions
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
16-ball WLCSP, 1.59 mm × 1.59 mm
16-lead LFCSP, 3 mm × 3 mm
APPLICATIONS
Keypad entries and input/output expansion capabilities
Smart phones, remote controls, and cameras
Healthcare, industrial, and instrumentation
FUNCTIONAL BLOCK DIAGRAM
SDA
GPI SCAN
AND
DECODE
UVLO
POR
I2C INTERFACE
OSCILLATOR
REGISTERS
KEY SCAN
AND
DECODE
LOGIC
I/O
CONFIG
INT
RST/R5
PWM
SCL
VDD
ADP5585
GND
RESET1
GEN
RESET2
GEN
09841-
001
R0
R3
R1
R2
R4
C0
C1
C2
C3
C4
Figure 1.
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.
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
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 programmable logic functions allow common logic require-
ments to be integrated as part of the GPIO expander, thus saving
board area and cost.
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ADP5586ACBZ-01-R7 功能描述:接口-I/O擴(kuò)展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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