參數(shù)資料
型號(hào)： STMPE1601TBR
廠商： 意法半導(dǎo)體
英文描述： 16-bit enhanced port expander with keypad and PWM controller Xpander Logic
中文描述： 16位鍵盤(pán)和PWM控制器Xpander邏輯加強(qiáng)港口擴(kuò)展
文件頁(yè)數(shù)： 1/58頁(yè)
文件大?。?/td> 433K
代理商： STMPE1601TBR
Preliminary Data
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
January 2008
Rev 1
1/58
58
STMPE1601
16-bit enhanced port expander with keypad and PWM controller
Xpander Logic
Features
■
16 GPIOs
(8 operate at core supply V
CC
, 8 operate at IO
supply V
io
)
■
Operating voltage 1.8
3.3 V
■
Hardware keypad controller (8*8 matrix with 4
optional dedicated keys max)
■
Keypad controller capable of detecting key-
press in hibernation mode
■
4 basic PWM controller for LED brightness
control
■
Interrupt output (open drain) pin
■
Optional 32 kHz clock input
■
8-channel programmable level translator
■
Advanced power management system
■
Ultra-low standby-mode current
■
Package TFBGA25 (3 x 3 mm)
Description
The STMPE1601 is a GPIO (general purpose
input/output) port expander able to interface a
main digital ASIC via the two-line bidirectional bus
(I
2
C). A separate GPIO expander IC is often used
in mobile multimedia platforms to solve the
problems of the limited number of GPIOs typically
available on the digital engine.
The STMPE1601 offers great flexibility, as each
I/O can be configured as input, output or specific
functions. The device is able to scan a keyboard,
also provides PWM outputs for brightness control
in backlight, and GPIO. This device has been
designed to include very low quiescent current,
and a wake-up feature for each I/O, to optimize
the power consumption of the IC.
Potential applications of the STMPE1601 include
portable media players, game consoles, mobile
and smart phones.
TFBGA25
Table 1.
Device summary
Order code
Package
Packaging
STMPE1601TBR
TFBGA25
Tape and reel
www.st.com
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