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参数资料
| 型号： | P89LPC954FBD44,151 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 19/69页 |
| 文件大小： | 0K |
| 描述： | IC 80C51 MCU FLASH 16K 44LQFP |
| 标准包装： | 160 |
| 系列： | LPC900 |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 18MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，POR，PWM，WDT |
| 输入/输出数： | 40 |
| 程序存储器容量： | 16KB（16K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 512 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.4 V ~ 3.6 V |
| 数据转换器： | A/D 8x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-LQFP |
| 包装： | 托盘 |
| 配用： | 568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X |
| 其它名称： | 568-7917 568-7917-ND 568-8269 935284303151 P89LPC954FBD44,151-ND P89LPC954FBD44-S P89LPC954FBD44-S-ND |
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P89LPC952_954_4
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 24 July 2008
26 of 69
NXP Semiconductors
P89LPC952/954
8-bit microcontroller with 10-bit ADC
7.10 Memory organization
The various P89LPC952/954 memory spaces are as follows:
DATA
128 bytes of internal data memory space (00H:7FH) accessed via direct or indirect
addressing, using instructions other than MOVX and MOVC. All or part of the Stack
may be in this area.
IDATA
Indirect Data. 256 bytes of internal data memory space (00H:FFH) accessed via
indirect addressing using instructions other than MOVX and MOVC. All or part of the
Stack may be in this area. This area includes the DATA area and the 128 bytes
immediately above it.
SFR
Special Function Registers. Selected CPU registers and peripheral control and status
registers, accessible only via direct addressing.
XDATA
‘External’ Data or Auxiliary RAM. Duplicates the classic 80C51 64 kB memory space
addressed via the MOVX instruction using the SPTR, R0, or R1. All or part of this
space could be implemented on-chip. The P89LPC952/954 has 256 bytes of on-chip
XDATA memory, plus extended SFRs located in XDATA.
CODE
64 kB of Code memory space, accessed as part of program execution and via the
MOVC instruction. The P89LPC952/954 has 8 kB/16 kB of on-chip Code memory.
7.11 Data RAM arrangement
The 768 bytes of on-chip RAM are organized as shown in Table 6.
7.12 Interrupts
The P89LPC952/954 uses a four priority level interrupt structure. This allows great
exibility in controlling the handling of the many interrupt sources. The P89LPC952/954
supports 17 interrupt sources: external interrupts 0 and 1, timers 0 and 1, serial port 0 TX,
serial port 0 RX, combined serial port 0 RX/TX, serial port 1 TX, serial port 1 RX,
combined serial port 1 RX/TX, brownout detect, watchdog/RTC, I2C-bus, keyboard,
comparators 1 and 2, SPI, and ADC completion.
Each interrupt source can be individually enabled or disabled by setting or clearing a bit in
the interrupt enable registers IEN0, IEN1 or IEN2. The IEN0 register also contains a
global disable bit, EA, which disables all interrupts.
Table 6.
On-chip data memory usages
Type
Data RAM
Size (bytes)
DATA
Memory that can be addressed directly and indirectly
128
IDATA
Memory that can be addressed indirectly
256
XDATA
Auxiliary (‘External Data’) on-chip memory that is accessed
using the MOVX instructions
256
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相关代理商/技术参数 |
参数描述 |
|---|---|
| P89LPC954FBD44-S | 功能描述:8位微控制器 -MCU 16K FL/1K RAM/512B EE/10B ADC 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 |
| P89LPC954FBD48 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 8 kB/16 kB 3 V byte-erasable flash with 10-bit ADC |
| P89LPC954FBD48,151 | 功能描述:8位微控制器 -MCU 8B MCU 2-CLOCK 80C51 8/16KB 3V 10B 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 |
| P89LPC970 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB wide-voltage byte-erasable flash |
| P89LPC970FDH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB wide-voltage byte-erasable flash |
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