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PDF ePH1200 Data sheet ( Hoja de datos )
| Número de pieza | ePH1200 | |
| Descripción | Handwriting Recognition Microcontroller | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ePH1200 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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ePH1200
Handwriting
Recognition
Microcontroller
Product
Specification
DOC. VERSION 2.0
ELAN MICROELECTRONICS CORP.
June 2005
1 page  
ePH1200
Handwriting Recognition Microcontroller
1 Introduction
The ePH1200 chip is an 8 bit RISC microcontroller embedded with recognition core.
When connected to an external resistance type touch panel, the chip becomes suitable
for handwriting recognition application products, such as SMS, Stylus Remote
Controller, mobile phones, handwriting input device, etc. The ePH1200 has low power
dissipation, low cost, and yet is capable of providing high performance rate of
recognition. These quality features are vital for shorter lead-time in developing new
handwriting recognition related products or pressure-sensitive screen input devices.
2 Features
Product No. Package
Input
ePH1200
CSP/
LQFP44
1. Simplified Chinese
2. ASCII
3. Gesture
Output Interface
Remarks
Unicode
/GB2312
UART
Can recognize Simplified
Chinese of 6,763 (GB2312)
characters
3 Block Diagram
Input Area
Candidates
Touch Panel-R Type
Touch Pad
Driver
ePH series
Handwriting
Recognition
Module
UART
Interface
TX
RX
9600 baud rate
LCD
Panel
Mobile
Phone
Product Specification (V2.0) 06.08.2005
(This specification is subject to change without further notice)
•1
5 Page 
ePH1200
Handwriting Recognition Microcontroller
8 Electrical Characteristic
8.1 Absolute Maximum Ratings
Items
Supply Voltage
Input Voltage (General Input Port)
Operating Temperature Range
Storage Temperature Range
Symbol
VDD
VIN
TOPR
TSTR
Condition
Limits
–0.3 to +3.6
–0.5 to VDD +0.5
–20 to +80
–55 to +125
Unit
V
V
oC
oC
8.2 Recommended Operating Conditions
Items
Supply Voltage
Input Voltage
A/D Full-Scale Input Span
Operating Temperature
Symbol
VDD
VDDA
VIH
VIL
ADRG
TOPR
Condition
Positive input–
negative input
Limits
2.8 to 3.6
2.8 to 3.6
VDD x 0.9 to VDD
0 to VDD x 0.1
0 to VREX
–20 to +80
Unit
V
V
V
V
oC
8.3 DC Electrical Characteristics
(Condition: Ta=25° C, VDD= 3.0 +/– 0.3V)
Parameter
CLOCK
Symbol
Fmain
Fsub
Condition
Main-clock frequency
Sub-clock frequency X'tal OSC
Min Type Max
– 9.83
–
– 32.768 –
Unit
MHz
KHz
Supply Current
Idd2
Idd3
Input Voltage
Input Threshold
Voltage (Schmitt)
Output Current
Input Leakage
Current
Touch Panel
Pull Down
Resistance
Data Retention
Voltage
Power on Reset
Voltage
VIH1
VIL1
VT+
VT–
IOH1
IOL1
IIL
RPD3
Vret
Vpor
IDLE mode
FAST mode
Input pin
VDD=3V, X'tal OSC.
–5
8
VDD=3V, Fmain=9.83MHz,
without touch panel load
–
2000
VDD×0.7 –
0–
3000
VDD
VDD×0.3
µA
V
RESETB pin
0.5×VDD – 0.75×VDD
V
0.2×VDD – 0.4×VDD
Output pin
VDD=3V, VOH=2.4V
VDD=3V, VOL=0.2V
–1.1 –2.2
+1.1 +2.2
–3.3
+3.3
mA
ALL Input port (without pull up/down resistor)
Vin=VDD or GND
–
– +/–1 µA
DET=1,Xn pin
Vin=VDD, VDD=3V
25 50 100 KΩ
1.6 –
1.4 1.5
–
1.6
V
V
Product Specification (V2.0) 06.08.2005
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ePH1200.PDF ] | |
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