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參數資料
| 型號： | 935267488112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 7.50 MM, PLASTIC, SO-20 |
| 文件頁數： | 68/69頁 |
| 文件大?。?/td> | 352K |
| 代理商： | 935267488112 |
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Philips Semiconductors
Preliminary specification
87LPC768
Low power, low price, low pin count (20 pin) microcontroller with
4 kB OTP 8-bit A/D, Pulse Width Modulator
2000 May 02
6
MNEMONIC
NAME AND FUNCTION
TYPE
PIN NO.
P2.0–P2.1
6, 7
I/O
Port 2: Port 2 is a 2-bit I/O port with a user-configurable output type. Port 2 latches are configured in the
quasi-bidirectional mode and have either ones or zeros written to them during reset, as determined by
the PRHI bit in the UCFG1 configuration byte. The operation of port 2 pins as inputs and outputs
depends upon the port configuration selected. Each port pin is configured independently. Refer to the
section on I/O port configuration and the DC Electrical Characteristics for details.
Port 2 also provides various special functions as described below.
7
O
P2.0
X2
Output from the oscillator amplifier (when a crystal oscillator option is
selected via the EPROM configuration).
CLKOUT
CPU clock divided by 6 clock output when enabled via SFR bit and in
conjunction with internal RC oscillator or external clock input.
6
I
P2.1
X1
Input to the oscillator circuit and internal clock generator circuits (when
selected via the EPROM configuration).
VSS
5
I
Ground: 0V reference.
VDD
15
I
Power Supply: This is the power supply voltage for normal operation as well as Idle and
Power Down modes.
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