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參數(shù)資料
| 型號： | P89LPC916 |
| 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轉換器 |
| 文件頁數(shù)： | 40/72頁 |
| 文件大?。?/td> | 344K |
| 代理商： | P89LPC916 |
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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
40 of 72
9397 750 14397
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9.12.7
Additional port features
After power-up, all pins are in Input-Only mode. After power-up all I/O pins except
P1.5, may be configured by software.
Pin P1.5 is input only.
SCL/T0/P1.2 and SDA/INTO/P1.3 may only be configured to be either input-only or
open drain.
Every output on the P89LPC915/916/917 has been designed to sink typical LED
drive current. However, there is a maximum total output current for all ports which
must not be exceeded. Please refer to
Table 13 “DC electrical characteristics”
for
detailed specifications.
All port pins that can function as an output have slew rate controlled outputs to limit
noise generated by quickly switching output signals. The slew rate is factory-set to
approximately 10 ns rise and fall times.
9.13 Power monitoring functions
The P89LPC915/916/917 incorporates power monitoring functions designed to
prevent incorrect operation during initial power-up and power loss or reduction during
operation. This is accomplished with two hardware functions: Power-on detect and
Brownout detect.
9.13.1
Brownout detection
The Brownout detect function determines if the power supply voltage drops below a
certain level. The default operation is for a Brownout detection to cause a processor
reset, however, it may alternatively be configured to generate an interrupt.
Brownout detection may be enabled or disabled in software.
If Brownout detection is enabled, the brownout condition occurs when V
DD
falls below
the brownout trip voltage, V
BO
(see
Table 13 “DC electrical characteristics”
), and is
negated when V
DD
rises above V
BO
. If the P89LPC915/916/917 device is to operate
with a power supply that can be below 2.7 V, BOE should be left in the
unprogrammed state so that the device can operate at 2.4 V, otherwise continuous
brownout reset may prevent the device from operating.
For correct activation of Brownout detect, the V
DD
rise and fall times must be
observed. Please see
Table 13 “DC electrical characteristics”
for specifications.
9.13.2
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.
9.14 Power reduction modes
The P89LPC915/916/917 supports three different power reduction modes. These
modes are Idle mode, Power-down mode, and total Power-down mode.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC9161 | 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 |
| P89LPC9161FDH | 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 |
| P89LPC9161FDH,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 |
| P89LPC916FDH | 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 2K FLASH TSSOP16 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 2K FLASH, TSSOP16 |
| P89LPC916FDH,118 | 功能描述:8位微控制器 -MCU 2K FL/256B 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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