參數(shù)資料
型號(hào)： P89LPC932A1
廠商： NXP Semiconductors N.V.
英文描述： 8-Bit Microcontroller with accelerated two-clock 80C51 core 8kB 3V byte-erasable flash with 512-byte data EEPROM
中文描述： 8位加速兩個(gè)小時(shí)的80C51單片機(jī)為核心的8kB 3V的字節(jié)可擦除閃存和512字節(jié)的EEPROM數(shù)據(jù)
文件頁(yè)數(shù)： 25/64頁(yè)
文件大?。?/td> 316K
代理商： P89LPC932A1
9397 750 14871
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 10 May 2005
25 of 64
Philips Semiconductors
P89LPC932A1
8-bit microcontroller with accelerated two-clock 80C51 core
For correct activation of brownout detect, the V
DD
rise and fall times must be observed.
Please see
Table 9 “Static characteristics”
for specifications.
7.14.2
Power-on detection
The Power-on detect has a function similar to the brownout detect, but is designed to work
as power comes up initially, before the power supply voltage reaches a level where
brownout detect can work. The POF flag in the RSTSRC register is set to indicate an
initial power-up condition. The POF flag will remain set until cleared by software.
7.15 Power reduction modes
The P89LPC932A1 supports three different power reduction modes. These modes are
Idle mode, Power-down mode, and Total Power-down mode.
7.15.1
Idle mode
Idle mode leaves peripherals running in order to allow them to activate the processor
when an interrupt is generated. Any enabled interrupt source or reset may terminate Idle
mode.
7.15.2
Power-down mode
The Power-down mode stops the oscillator in order to minimize power consumption. The
P89LPC932A1 exits Power-down mode via any reset, or certain interrupts. In Power-down
mode, the power supply voltage may be reduced to the data retention voltage V
DDR
. This
retains the RAM contents at the point where Power-down mode was entered. SFR
contents are not guaranteed after V
DD
has been lowered to V
DDR
, therefore it is highly
recommended to wake up the processor via reset in this case. V
DD
must be raised to
within the operating range before the Power-down mode is exited.
Some chip functions continue to operate and draw power during Power-down mode,
increasing the total power used during power-down. These include: Brownout detect,
watchdog timer, Comparators (note that Comparators can be powered-down separately),
and RTC/System Timer. The internal RC oscillator is disabled unless both the RC
oscillator has been selected as the system clock and the RTC is enabled.
7.15.3
Total Power-down mode
This is the same as Power-down mode except that the brownout detection circuitry and
the voltage comparators are also disabled to conserve additional power. The internal RC
oscillator is disabled unless both the RC oscillator has been selected as the system clock
and
the RTC is enabled. If the internal RC oscillator is used to clock the RTC during
power-down, there will be high power consumption. Please use an external low frequency
clock to achieve low power with the RTC running during power-down.
7.16 Reset
The P1.5/RST pin can function as either an active-LOW reset input or as a digital input,
P1.5. The RPE (Reset Pin Enable) bit in UCFG1, when set to logic 1, enables the external
reset input function on P1.5. When cleared, P1.5 may be used as an input pin.
Remark:
During a power-up sequence, The RPE selection is overridden and this pin will
always functions as a reset input.
An external circuit connected to this pin should not
hold this pin LOW during a power-on sequence as this will keep the device in reset.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89LPC932A1FA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-Bit Microcontroller with accelerated two-clock 80C51 core 8kB 3V byte-erasable flash with 512-byte data EEPROM
P89LPC932A1FA,112 功能描述:8位微控制器 -MCU 8K FL/768B RAM/512B EE/CCU 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
P89LPC932A1FA,129 功能描述:8位微控制器 -MCU 8K FL/768B RAM/512B EE/CCU 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
P89LPC932A1FDH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 512-byte data EEPROM
P89LPC932A1FDH,512 功能描述:8位微控制器 -MCU 80C51 8K FL 768B 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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