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参数资料
型号： P89LPC9221FN,112
厂商： NXP Semiconductors
文件页数： 45/46页
文件大小： 0K
描述： IC 80C51 MCU FLASH 8K 20-DIP
标准包装： 18
系列： LPC900
核心处理器： 8051
芯体尺寸： 8-位
速度： 18MHz
连通性： I²C，UART/USART
外围设备： 欠压检测/复位，LED，POR，PWM，WDT
输入/输出数： 18
程序存储器容量： 8KB（8K x 8）
程序存储器类型： 闪存
RAM 容量： 256 x 8
电压 - 电源 (Vcc/Vdd)： 2.4 V ~ 3.6 V
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 20-DIP（0.300"，7.62mm）
包装： 管件
配用： 622-1014-ND - BOARD FOR LPC9XX TSSOP
622-1010-ND - BOARD FOR LPC922 TSSOP
622-1008-ND - BOARD FOR LPC9103 10-HVSON
622-1006-ND - SOCKET ADAPTER BOARD
568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X
其它名称： 568-3224-5
935277592112
P89LPC9221FN
Philips Semiconductors
P89LPC920/921/922/9221
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 08 — 15 December 2004
8 of 46
9397 750 14469
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
[1]
Input/Output for P1.0-P1.4, P1.6, P1.7. Input for P1.5.
6.
Logic symbol
P3.0 to P3.1
I/O
Port 3: Port 3 is an 2-bit I/O port with a user-congurable output type. During reset
Port 3 latches are congured in the input only mode with the internal pull-up disabled.
The operation of Port 3 pins as inputs and outputs depends upon the port conguration
selected. Each port pin is congured independently. Refer to Section 8.12.1 “Port
congurations” and Table 8 “DC electrical characteristics” for details.
All pins have Schmitt triggered inputs.
Port 3 also provides various special functions as described below:
7
I/O
P3.0 — Port 3 bit 0.
O
XTAL2 — Output from the oscillator amplier (when a crystal oscillator option is
selected via the FLASH conguration.
O
CLKOUT — CPU clock divided by 2 when enabled via SFR bit (ENCLK - TRIM.6). It
can be used if the CPU clock is the internal RC oscillator, watchdog oscillator or
external clock input, except when XTAL1/XTAL2 are used to generate clock source for
the real time clock/system timer.
6
I/O
P3.1 — Port 3 bit 1.
I
XTAL1 — Input to the oscillator circuit and internal clock generator circuits (when
selected via the FLASH conguration). It can be a port pin if internal RC oscillator or
watchdog oscillator is used as the CPU clock source, and if XTAL1/XTAL2 are not used
to generate the clock for the real time clock/system timer.
VSS
5I
Ground: 0 V reference.
VDD
15
I
Power Supply: This is the power supply voltage for normal operation as well as Idle
and Power down modes.
Table 3:
Pin description…continued
Symbol
Pin
Type
Description
Fig 4.
Logic symbol.
VDD
VSS
P89LPC920/921/922/9221
POR
T
0
POR
T
3
POR
T
1
TxD
RxD
T0
INT0
INT1
RST
SCL
SDA
002aaa409
CMP2
CIN2B
CIN2A
CIN1B
CIN1A
CMPREF
CMP1
T1
XTAL2
XTAL1
KBI0
KBI1
KBI2
KBI3
KBI4
KBI5
KBI6
KBI7
CLKOUT
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