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PDF STMPE2403 Data sheet ( Hoja de datos )
| Número de pieza | STMPE2403 | |
| Descripción | 24-bit Enhanced port expander | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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STMPE2403
24-bit Enhanced port expander with Keypad and PWM controller
Xpander logic
Features
■ 24 GPIOs
www.DataSheet4U■.comOperating voltage 1.8V
■ Hardware key pad controller (8*12 matrix max)
■ 8 Special Function Key support
■ 3 PWM (8 bit) output for LED brightness control
and blinking
■ Interrupt output (open drain) pin
■ Configurable hotkey feature on each GPIO
■ Ultra-low Standby-mode current
■ Package TFBGA - 36 pins 3.6x3.6mm, pitch
0.5mm
Description
The STMPE2403 is a GPIO (General Purpose
Input / Output) port expander able to interface a
Main Digital ASIC via the two-line bidirectional
bus (I2C); separate GPIO Expander IC is often
used in Mobile-Multimedia platforms to solve the
problems of the limited amounts of GPIOs usually
available on the Digital Engine.
The STMPE2403 offers great flexibility as each
I/Os is configurable as input, output or specific
functions; it's able to scan a keyboard, also
provides PWM outputs for brightness control in
backlight, rotator decoder interface and GPIO.
This device has been designed very low
quiescent current, and is including a wake up
feature for each I/O, to optimize the power
consumption of the IC.
Potential application of the STMPE2403 includes
portable media player, game console, mobile
phone, smart phone
Table 1. Device summary
Part Number
STMPE2403TBR
Package
TFBGA36
June 2007
Rev 1
TFBGA
Packaging
Tape and reel
1/63
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63
1 page  
STMPE2403
1 Block diagram
Figure 1. Block diagram
Block diagram
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INT
SCLK
SDAT
Keypad
Controller
GPIO
0-7
Main FSM
+ PWM
+ Rotator Control
+ GPIO Control
A0
I2C A1
Interface
Keypad
Inputs
Function
Select
Keypad
Outputs
Function
Select
&
MUX 1, 2
Control
GPIO
15
PWM
O/P
POR
RC OSC
Clock
Controller
Keypad Input 0-7 /
GPIO 0-7
Keypad Output 0-11
/ GPIO 8-14, 16-20
/ Digital MUX 1, 2
/ Rotator
GPIO 15
ADDR0
Trigger I/O
PWM1,2,3
/ ADDR1
/ GPIO 21-23
Reset_N
VCC1
VCC2
GND
XTAL1IN XTAL2OUT
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5 Page 
STMPE2403
4 Electrical specification
Electrical specification
4.1
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DC electrical characteristics
Table 7. DC electrical characteristics
Symbol
Parameter
VCC1,2 Supply voltage
IHIBERNATE1 HIBERNATE mode
current
IHIBERNATE2 HIBERNATE mode
current
ISLEEP1 SLEEP mode current
ISLEEP2 SLEEP mode current
Operating current
Icc (FSM working – No
peripheral activity)
INT
Open drain output
current
Test conditions
Min.
1.65
XTALIN not floating
XTALIN floating
XTALIN not floating
XTALIN floating
Value
Typ.
1.8
15
35
55
75
1.2
4
Max.
1.95
20
Unit
V
uA
40 uA
100 uA
120 uA
1.6 mA
mA
4.2 I/O DC electrical characteristics
The 1.8V I/O complies to the EIA/JEDEC standard JESD8-7.
Table 8. I/O DC electrical characteristic
Symbol
Parameter
Vil Low level input voltage
Vih
Vhyst
High level input voltage
Schmitt trigger hysteresis
Min.
0.65*Vcc
= 1.17
Value
Typ.
0.10
Unit
Max.
0.35*Vcc
= 0.63
V
V
V
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet STMPE2403.PDF ] | |
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