参数资料
| 型号： | P89LPC907FD,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 31/51页 |
| 文件大小： | 0K |
| 描述： | IC 80C51 MCU FLASH 1K 8-SOIC |
| 产品培训模块： | Migrating from 8/16-Bit MCUs to 32-Bit ARMs |
| 标准包装： | 1 |
| 系列： | LPC900 |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 7.3728MHz |
| 连通性： | UART/USART |
| 外围设备： | 欠压检测/复位，LED，POR，WDT |
| 输入/输出数： | 6 |
| 程序存储器容量： | 1KB（1K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 128 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.4 V ~ 3.6 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 剪切带 (CT) |
| 配用： | 622-1006-ND - SOCKET ADAPTER BOARD |
| 其它名称： | 568-1998-1 |
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Philips Semiconductors
P89LPC906/907/908
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 05 — 17 December 2004
37 of 51
9397 750 14467
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Double buffering can be disabled. If disabled (DBMOD, i.e., SSTAT.7 = ‘0’), the UART
is compatible with the conventional 80C51 UART. If enabled, the UART allows writing
to SnBUF while the previous data is being shifted out. Double buffering is only
allowed in Modes 1, 2 and 3. When operated in Mode 0, double buffering must be
disabled (DBMOD = ‘0’).
8.17.9
Transmit interrupts with double buffering enabled (Modes 1, 2 and 3)
Unlike the conventional UART, in double buffering mode, the Tx interrupt is generated
when the double buffer is ready to receive new data.
8.17.10
The 9th bit (bit 8) in double buffering (Modes 1, 2 and 3)
If double buffering is disabled TB8 can be written before or after SBUF is written, as
long as TB8 is updated some time before that bit is shifted out. TB8 must not be
changed until the bit is shifted out, as indicated by the Tx interrupt.
If double buffering is enabled, TB8 must be updated before SBUF is written, as TB8
will be double-buffered together with SBUF data.
8.18 Analog comparator
An analog comparator is provided on the P89LPC906/907/908. Comparator
operation is such that the output is a logical one (which may be read in a register)
when the positive input is greater than the negative input (selectable from a pin or an
internal reference voltage). Otherwise the output is a zero. The comparator may be
congured to cause an interrupt when the output value changes.
The connections to the comparator are shown in Figure 16. The comparator functions
to VDD = 2.4 V.
When the comparator is rst enabled, the comparator output and interrupt ag are not
guaranteed to be stable for 10 microseconds. The comparator interrupt should not be
enabled during that time, and the comparator interrupt ag must be cleared before
the interrupt is enabled in order to prevent an immediate interrupt service.
When a comparator is disabled the comparator’s output, COx, goes HIGH. If the
comparator output was LOW and then is disabled, the resulting transition of the
comparator output from a LOW to HIGH state will set the comparator ag, CMFx.
This will cause an interrupt if the comparator interrupt is enabled. The user should
therefore disable the comparator interrupt prior to disabling the comparator.
Additionally, the user should clear the comparator ag, CMFx, after disabling the
comparator.
8.19 Internal reference voltage
An internal reference voltage generator may supply a default reference when a single
comparator input pin is used. The value of the internal reference voltage, referred to
as VREF, is 1.23 V ±10 %.
8.20 Comparator interrupt
Each comparator has an interrupt ag contained in its conguration register. This ag
is set whenever the comparator output changes state. The ag may be polled by
software or may be used to generate an interrupt.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| P89LPC908 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC908FD | 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 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P89LPC908FD,112 | 功能描述:8位微控制器 -MCU PREF PART P89LPC903FD RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P89LPC9102 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock accelerated 80C51 core 1 kB 3 V byte-erasable flash with 8-bit A/D converter |
| P89LPC9102FTK | 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 1K FLASH HVSON-10 |
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