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參數(shù)資料
| 型號(hào)： | P89LPC901 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| 中文描述： | 8位微控制器兩個(gè)小時(shí)80C51的核心具有1KB 3伏閃光的128字節(jié)RAM |
| 文件頁數(shù)： | 24/55頁 |
| 文件大?。?/td> | 1236K |
| 代理商： | P89LPC901 |
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Philips Semiconductors
P89LPC901/902/903
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 04 — 21 November 2003
24 of 55
9397 750 12293
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
8.
Functional description
Remark:
Please refer to the P89LPC901/902/903 User’s Manualfor a more detailed
functional description.
8.1 Enhanced CPU
The P89LPC901/902/903 uses an enhanced 80C51 CPU which runs at 6 times the
speed of standard 80C51 devices. A machine cycle consists of two CPU clock cycles,
and most instructions execute in one or two machine cycles.
8.2 Clocks
8.2.1
Clock definitions
The P89LPC901/902/903 device has several internal clocks as defined below:
OSCCLK —
Input to the DIVM clock divider. OSCCLK is selected from one of the
clock sources (see Figures
12
,
13
, and
14
) and can also be optionally divided to a
slower frequency (see
Section 8.7 “CPU CLOCK (CCLK) modification: DIVM
register”
).
Note:
f
OSC
is defined as the OSCCLK frequency.
CCLK —
CPU clock; output of the clock divider. There are two CCLK cycles per
machine cycle, and most instructions are executed in one to two machine cycles (two
or four CCLK cycles).
RCCLK —
The internal 7.373 MHz RC oscillator output.
PCLK —
Clock for the various peripheral devices and is CCLK/2
8.2.2
CPU clock (OSCCLK)
The P89LPC901/902/903 provides several user-selectable oscillator options in
generating the CPU clock. This allows optimization for a range of needs from high
precision to lowest possible cost. These options are configured when the FLASH is
programmed and include an on-chip Watchdog oscillator and an on-chip RC
oscillator.
The P89LPC901, in addition, includes an option for an oscillator using an external
crystal or an external clock source. The crystal oscillator can be optimized for low,
medium, or high frequency crystals covering a range from 20 kHz to 12 MHz.
8.2.3
Low speed oscillator option (P89LPC901)
This option supports an external crystal in the range of 20 kHz to 100 kHz. Ceramic
resonators are also supported in this configuration.
8.2.4
Medium speed oscillator option (P89LPC901)
This option supports an external crystal in the range of 100 kHz to 4 MHz. Ceramic
resonators are also supported in this configuration.
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| P89LPC901FD | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
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| P89LPC902 | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC902FD | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC902FN | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC901FD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC901FD,112 | 功能描述:8位微控制器 -MCU 80C51 1K FL 128B RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT |
| P89LPC901FD112 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 12MHZ SOIC-8 |
| P89LPC901FN | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC901FN,129 | 功能描述:8位微控制器 -MCU 80C51 1K FL 128B RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT |
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