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参数资料
| 型号： | P87C51FA–5B |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | 80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| 中文描述： | 80C51的8位单片机系列8K-64K/256-1K检察官办公室/光盘/无ROM。低电压为2.7V至5.5V）。低功耗。高速（33兆赫） |
| 文件页数： | 2/34页 |
| 文件大小： | 394K |
| 代理商： | P87C51FA–5B |
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2001 Apr 06
2
Philips Semiconductors
Preliminary specification
P87C51MB2/P87C51MC2
80C51 8-bit microcontroller family with extended memory
64KB/96KB OTP with 2KB/3KB RAM
GENERAL DESCRIPTION
The P87C51Mx2 represents the first microcontroller based on Philips Semiconductors’ new 51MX core. The P87C51MC2
features 96 Kbytes of OTP program memory and 3 Kbytes of data SRAM, while the P87C51MB2 has 64 Kbytes of OTP and 2
Kbytes of RAM. In addition, both devices are equipped with a Programmable Counter Array (PCA), a watchdog timer that can be
configured to different time ranges through SFR bits, as well as two enhanced UARTs or one enhanced UART and an SPI.
Philips Semiconductors’ 51MX (Memory eXtension) core is an accelerated 80C51 architecture that executes instructions at twice
the rate of standard 80C51 devices. The linear address range of the 51MX has been expanded to support up to 8 Mbytes of
program memory and 8Mbytes of data memory. It retains full program code compatibility to enable design engineers to re-use
80C51 development tools, eliminating the need to move to a new, unfamiliar architecture. The 51MX core also retains 80C51
bus compatibility to allow for the continued use of 80C51-interfaced peripherals and Application Specific Integrated Circuits
(ASICs).
The P87C51Mx2 provides greater functionality, increased performance and overall lower system cost. By offering an embedded
memory solution combined with the enhancements to manage the memory extension, the P87C51Mx2 eliminates the need for
software work-arounds. The increased program memory enables design engineers to develop more complex programs in a high-
level language like C, for example, without struggling to contain the program within the traditional 64 Kbytes of program memory.
These enhancements also greatly improve C Language efficiency for code size below 64 Kbytes.
The 51MX core is described in more details in the 51MX Architecture Reference.
KEY FEATURES
Extended features of the 51MX Core:
- 23-bit program memory space and 23-bit data memory space - linear program and data address range expanded to sup-
port up to 8 Mbytes each
- Program counter expanded to 23 bits
- Stack pointer extended to 16 bits enabling stack space beyond the 80C51 limitation
- New 23-bit extended data pointer and two 24-bit universal pointers greatly improve C compiler code efficiency in using
pointers to access variables in different spaces.
100% binary compatibility with the classic 80C51 so that existing code is completely reusable
Up to 24 MHz CPU clock with 6 clock cycles per machine cycle
96 Kbytes or 64 Kbytes of on-chip OTP
3 Kbytes or 2 Kbytes of on-chip RAM
Programmable Counter Array (PCA)
Two full-duplex enhanced UARTs
Industry-standard Serial Peripheral Interface (SPI)
KEY BENEFITS
Increases program/data address range to 8 Mbytes each
Enhances performance and efficiency for C programs
Fully 80C51-compatible microcontroller
Provides seamless and compelling upgrade path from classic 80C51
Preserves 80C51 code base, investment/knowledge, and peripherals & ASICs
Supported by 80C51 development and programming tools (Keil, Nohau, BP Micro, etc.)
The P87C51Mx2 makes it possible to develop applications at a lower cost and with a reduced time-to-market
相关PDF资料 |
PDF描述 |
|---|---|
| P87C51FA–5N | 80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| P87C51FA–IA | 80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| P87C51FA–IB | 80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| P87C51FA–IN | 80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| P87C51FA–JA | 80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P87C51FA–5B | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| P87C51FA5N | 制造商:PHILIP 功能描述: |
| P87C51FA-5N | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit CMOS (low voltage, low power and high speed) microcontroller families |
| P87C51FA–5N | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 8K-64K/256-1K OTP/ROM/ROMless. low voltage 2.7V-5.5V). low power. high speed (33 MHz) |
| P87C51FA-IA | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz |
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