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參數(shù)資料
| 型號： | P89LPC915 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| 中文描述： | 8 - 8加速雙位單片機80C51的時鐘核心2 Kb的3伏閃存位A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 30/72頁 |
| 文件大?。?/td> | 344K |
| 代理商： | P89LPC915 |
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Philips Semiconductors
P89LPC915/916/917
8-bit microcontrollers with accelerated two-clock 80C51 core
Product data
Rev. 04 — 17 December 2004
30 of 72
9397 750 14397
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9.4 Watchdog oscillator option
The Watchdog has a separate oscillator which has a frequency of 400 kHz. This
oscillator can be used to save power when a high clock frequency is not needed.
9.5 External clock input option
In this configuration, the processor clock is derived from an external source driving
the CLKIN pin. The rate may be from 0 Hz up to 18 MHz.
When using an oscillator
frequency above 12 MHz, the reset input function of P1.5 must be enabled. An
external circuit is required to hold the device in reset at power-up until V
DD
has
reached its specified level. When system power is removed V
DD
will fall below
the minimum specified operating voltage. When using an oscillator frequency
above 12 MHz, in some applications, an external brownout detect circuit may
be required to hold the device in reset when V
DD
falls below the minimum
specified operating voltage.
9.6 CPU Clock (CCLK) wake-up delay
The P89LPC915/916/917 has an internal wake-up timer that delays the clock until it
stabilizes. The delay is 224 OSCCLK cycles plus 60 to 100
μ
s.
9.7 CPU Clock (CCLK) modification: DIVM register
The OSCCLK frequency can be divided down up to 510 times by configuring a
dividing register, DIVM, to generate CCLK. This feature makes it possible to
temporarily run the CPU at a lower rate, reducing power consumption. By dividing the
clock, the CPU can retain the ability to respond to events that would not exit Idle
mode by executing its normal program at a lower rate. This can also allow bypassing
Fig 10. Block diagram of oscillator control.
÷
2
002aaa831
RTC
CPU
WDT
DIVM
CCLK
OSCCLK
XCLK
RCCLK
I
2
C
PCLK
peripheral clock
TIMERS 1 & 0
CLKIN
RC
OSCILLATOR
WATCHDOG
OSCILLATOR
(7.3728 MHz)
(400 kHz)
PCLK
RCCLK
SPI
(P89LPC916)
RTCS1:0
ADC1/DAC1
UART
BAUD RATE
GENERATOR
CLKOUT
相關PDF資料 |
PDF描述 |
|---|---|
| P89LPC915HDH | 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| P89LPC916 | 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| P89LPC917 | 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| P89LPC932A1 | 8-Bit Microcontroller with accelerated two-clock 80C51 core 8kB 3V byte-erasable flash with 512-byte data EEPROM |
| P89LPC932 | 80C51 8-bit microcontroller with two-clock core 8 KB 3 V low-power Flash with 512-byte data EEPROM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC9151 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC |
| P89LPC9151FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC |
| P89LPC9151FDH,129 | 功能描述:8位微控制器 -MCU IC 80C51 MCU FLASH 2KB 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| P89LPC915FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| P89LPC915FDH,129 | 功能描述:8位微控制器 -MCU 80C51 2K FL 256B 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
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