參數(shù)資料
型號： MC68HC908JK8CDW
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO20
封裝： SOIC-20
文件頁數(shù)： 53/56頁
文件大?。?/td> 648K
代理商： MC68HC908JK8CDW
MC68HC908JL8SM/D
MC68HC908JL8MC68HC908JK8
Pin Functions
Table 2 provides a description of the pin functions.
Table 2. Pin Functions
PIN NAME
PIN DESCRIPTION
IN/OUT
VOLTAGE
LEVEL
VDD
Power supply.
In
5V or 3V
VSS
Power supply ground.
Out
0V
RST
Reset input, active low;
with internal pull-up and schmitt trigger input.
In/Out
VDD
IRQ
External IRQ pin; with programmable internal pull-up and schmitt
trigger input.
In
VDD
Used for monitor mode entry.
In
VDD to VTST
OSC1
Crystal or RC oscillator input.
In
VDD
OSC2/RCCLK
OSC2: crystal oscillator output; inverted OSC1 signal.
Out
VDD
RCCLK: RC oscillator clock output.
Out
VDD
Pin as PTA6/KBI6 (see PTA0–PTA7).
In/Out
VDD
ADC12/T2CLK
ADC12: channel-12 input of ADC.
In
VSS to VDD
T2CLK: external input clock for TIM2.
In
VDD
PTA0–PTA7
8-bit general purpose I/O port.
In/Out
VDD
Each pin has programmable internal pull-up when configured as
input.
In
VDD
Pins as keyboard interrupts, KBI0–KBI7.
In
VDD
PTA0–PTA5 and PTA7 have LED direct sink capability.
Out
VSS
PTA6 as OSC2/RCCLK.
Out
VDD
PTB0–PTB7
8-bit general purpose I/O port.
In/Out
VDD
Pins as ADC input channels, ADC0–ADC7.
In
VSS to VDD
PTD0–PTD7
8-bit general purpose I/O port;
with programmable internal pull-ups on PTD6–PTD7.
In/Out
VDD
PTD0–PTD3 as ADC input channels, ADC11–ADC8.
Input
VSS to VDD
PTD2–PTD3 and PTD6–PTD7 have LED direct sink capability.
Out
VSS
PTD4 as T1CH0 of TIM1.
In/Out
VDD
PTD5 as T1CH1 of TIM1.
In/Out
VDD
PTD6–PTD7 have configurable 25mA open-drain output.
Out
VSS
PTD6 as TxD of SCI.
Out
VDD
PTD7 as RxD of SCI.
In
VDD
PTE0–PTE1
2-bit general purpose I/O port.
In/Out
VDD
PTE0 as T2CH0 of TIM2.
In/Out
VDD
PTE1 as T2CH1 of TIM2.
In/Out
VDD
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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