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參數(shù)資料
| 型號： | P89LPC9301FDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB-8 kB 3 V byte-erasable flash |
| 中文描述： | 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT-361, TSSOP-28 |
| 文件頁數(shù)： | 11/66頁 |
| 文件大小： | 1326K |
| 代理商： | P89LPC9301FDH |
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P89LPC9301_931A1
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 29 November 2010
19 of 66
NXP Semiconductors
P89LPC9301/931A1
8-bit microcontroller with accelerated two-clock 80C51 core
7.5 Clock output
The P89LPC9301/931A1 supports a user-selectable clock output function on the
P3.0/XTAL2/CLKOUT pin when crystal oscillator is not being used. This condition occurs
if another clock source has been selected (on-chip RC oscillator, watchdog oscillator,
external clock input on XTAL1) and if the RTC and WDT are not using the crystal oscillator
as their clock source. This allows external devices to synchronize to the
P89LPC9301/931A1. This output is enabled by the ENCLK bit in the TRIM register.
The frequency of this clock output is 12 that of the CCLK. If the clock output is not needed
in Idle mode, it may be turned off prior to entering Idle, saving additional power.
7.6 On-chip RC oscillator option
The P89LPC9301/931A1 has a 6-bit TRIM register that can be used to tune the frequency
of the RC oscillator. During reset, the TRIM value is initialized to a factory preprogrammed
value to adjust the oscillator frequency to 7.373 MHz
1 % at room temperature.
End-user applications can write to the TRIM register to adjust the on-chip RC oscillator to
other frequencies. When the clock doubler option is enabled (UCFG2.7 = 1), the output
frequency is 14.746 MHz. If CCLK is 8 MHz or slower, the CLKLP SFR bit (AUXR1.7) can
be set to logic 1 to reduce power consumption. On reset, CLKLP is logic 0 allowing
highest performance access. This bit can then be set in software if CCLK is running at
8 MHz or slower. When clock doubler option is enabled, BOE1 bit (UCFG1.5) and BOE0
bit (UCFG1.3) are required to hold the device in reset at power-up until VDD has reached
its specified level.
7.7 Watchdog oscillator option
The watchdog has a separate oscillator which has a frequency of 400 kHz, calibrated to
5 % at room temperature. This oscillator can be used to save power when a high clock
frequency is not needed.
7.8 External clock input option
In this configuration, the processor clock is derived from an external source driving the
P3.1/XTAL1 pin. The rate may be from 0 Hz up to 18 MHz. The P3.0/XTAL2/CLKOUT pin
may be used as a standard port pin or a clock output. When using an oscillator frequency
above 12 MHz, BOE1 bit (UCFG1.5) and BOE0 bit (UCFG1.3) are required to hold the
device in reset at power-up until VDD has reached its specified level.
7.9 Clock sources switch on the fly
P89LPC9301/931A1 can implement clock source switch in any sources of watchdog
oscillator, 7 MHz/14 MHz internal RC oscillator, external clock source (external crystal or
external clock input) during code is running. CLKOK bit in CLKCON register is used to
indicate the clock switch status. CLKOK is cleared when starting clock source switch and
set when completed. Notice that when CLKOK is ‘0’, writing to CLKCON register is not
allowed.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC9301FDH,512 | 功能描述:8位微控制器 -MCU IC 80C51 MCU FLASH 4K RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| P89LPC930FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM |
| P89LPC930FDH,129 | 功能描述:8位微控制器 -MCU 80C51 4K FL 256B RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| P89LPC930FDH.129 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 4K FLASH SMD 89LC930 制造商:NXP Semiconductors 功能描述:IC, 8BIT MCU 4K FLASH, SMD, 89LC930 制造商:NXP Semiconductors 功能描述:IC, 8BIT MCU 4K FLASH, SMD, 89LC930; Controller Family/Series:(8051) 8052; Core Size:8bit; No. of I/O's:26; Supply Voltage Min:2.4V; Supply Voltage Max:3.6V; Digital IC Case Style:TSSOP; No. of Pins:28; Program Memory Size:4KB; RAM ;RoHS Compliant: No |
| P89LPC930FDH129 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 18MHZ TSSOP-28 |
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