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參數(shù)資料
| 型號(hào)： | RTS3700B |
| 英文描述： | 8-bit MCU Based Generic Integrated System |
| 中文描述： | 8位微控制器的通用集成系統(tǒng) |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大?。?/td> | 376K |
| 代理商： | RTS3700B |
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RTS3700B
V1.1
2000/11/1
Pad Function Description
Pin
I/O
Description
VDD
Power
Positive power supply for digital circuit
GND
Power
Negative power supply for digital circuit
AVDD
Power
Positive power supply for analog circuit
AGND
Power
Negative power supply for analog circuit
PVDD
Power
Positive power supply for PWM
PGND
Power
Negative power supply for PWM.
OSCI
I
RC oscillation input pin.
OSCO
O
PLL/RC oscillation output pin.
XTLI
I
Input pin for 32.768KHz crystal oscillator.
XTLO
O
Output pin for 32.768KHz crystal oscillator.
PI7 - 0
I
General purpose input pins with software programmable pull-high resistors
(100K
). Furthermore, built-in Schmitt trigger circuit for each PI pad.
PA7 - 0
I/O
General purpose input/output pins with software programmable pull-high
resistors (100K
). Either input or output function is set by program.
PB7 - 0
I/O
General purpose input/output/analog input pins with software programmable
pull-high resistors (100K
). Either input, output or analog input function is
set by program.
PO7 - 0
I
General purpose output pins
AUDIO2-1
O
The output function of PWM (audio) function
TEST2-1
I
Reserved for testing purpose. Pull-low resistors are built-in these pads.
00: Normal mode.
01: Test mode 1 ( dump ROM code )
10: Test mode 2 ( function test by internal test program )
11: Test mode 3 ( external crystal oscillator )
RESETB
I
Reset input pin. A logical 0 on it forces the system to a known start-up state. A
Schmitt trigger circuit and pull-high resistor are built-in. An external capacitor
(0.47
μ
F) should be connected between this pad and GND.
NMIB
I
Non-Maskable Interrupt input. A Schmitt trigger circuit and pull-high resistor
are built-in.
LCD_CK
O
Serial clock out for LCD driver
LCD_ON
O
External LCD driver chip enalbe signal.
LCD_V0
Power
Bias voltage output for LCD driver
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