NXP Semiconductors


Select site:

English

P87C51MB2/P87C51MC2

Parametric Search

Datasheet

P87C51MB2/P87C51MC2
(Product Specification)
13-Nov-03, 34 pages, 965 kB

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 and Serial Peripheral Interface (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 8 Mbytes 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-around. 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 detail in the 51MX Architecture Reference.

Features

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 support 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
  • 100pct. 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 (MC2) or 64 kbytes (MB2) of on-chip OTP
  • 3 kbytes (MC2) or 2 kbytes (MB2) of on-chip RAM
  • Programmable Counter Array (PCA)
  • Two full-duplex enhanced UARTs and Serial Peripheral Interface (SPI) communication modules

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 and ASICs
  • Supported by wide range of 80C51 development systems and programming tools vendors
  • The P87C51Mx2 makes it possible to develop applications at lower cost and with a reduced time-to-market

Complete features

  • Fully static
  • 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
  • 23-bit program memory space and 23-bit data memory space
  • Four-level interrupt priority
  • 34 I/O lines (5 ports)
  • Three Timers: Timer0, Timer1 and Timer2
  • Two full-duplex enhanced UARTs with baud rate generator
  • Framing error detection
  • Automatic address recognition
  • Supports industry-standard Serial Peripheral Interface (SPI) with a baud rate up to 6 Mbits/s
  • Power control modes
  • Clock can be stopped and resumed
  • Idle mode
  • Power down mode with advanced clock control
  • Second DPTR register
  • Asynchronous port reset
  • Programmable Counter Array (PCA) (compatible with 8xC51Rx+) with five Capture/Compare modules
  • Low EMI (inhibit ALE)
  • Watchdog timer with programmable prescaler for different time ranges (compatible with 8xC66x with added prescaler)

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
P87C51MB2BA/02P87C51MB2BA/02-S9352 738 76529Volume productionSOT187-2
(PLCC44)
P87C51MB2BA/02
week 41, 2004
P87C51MC2BA/02P87C51MC2BA/02-S9352 732 19529Volume productionSOT187-2
(PLCC44)
P87C51MC2BA/02
week 41, 2004

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
P87C51MB2BA/029352 738  76529  6.1200NADIGI-KEY CORPORATION7896/29/2008 Buy online Order samples
   NAMOUSER ELECTRONICS1297/6/2008 Buy online  
P87C51MC2BA/029352 732  19529  6.7100NAFUTURE ELECTRONICS1,3667/4/2008 Buy online Order samples
   NADIGI-KEY CORPORATION1816/29/2008 Buy online  
   NAMOUSER ELECTRONICS1567/6/2008 Buy online  
   NAARROW ELECTRONICS197/4/2008 Buy online  

Block diagrams/pinning

Technical documents

Application Notes

AN10155_1; AN10155: Philips LPC9xx microcontroller in I2C applications (21-Jun-02)
AN10289_1; LPC900 external crystal start-up (27-Apr-04)
AN10342_1; Using LPC900 code Flash as data storage (13-Dec-04)

Support Documents

UM_P89C669_1; 80C51 8-bit microcontroller family with extended memory 96 kB FLASH with 2 kB RAM (2003-06-17)
index; Development Tools for P87C51Mx2 devices (2003-12-15)
flash_as_datastorage_lpc900; Flash as Data storage LPC900.zip (17-Dec-04)
philips_i2c_logic_overview; Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview (2004-01-01)
li_ion_battery_charger; Li-ion Battery charger (17-Dec-04)
P87C51Mx2_02_1; P87C51Mx2 Errata Sheet (2003-06-17)
75011294; P87C51Mx2 Leaflet (2003-04-04)
UM_P87C51MX2_1; P87C51Mx2 User Manual (2003-05-13)
UM_P89C669_3; P89C669 User Manual (2003-09-16)
75014621; Philips - The Innovation Leader in Microcontrollers (2005-03-01)
75014632; Philips - The Innovation Leader in Microcontrollers (2005-06-01)
75013977; Philips - The Innovation Leader in Microcontrollers Oct. 2004 (2004-11-01)
75013474; Philips -- The Innovation Leader in Microcontrollers (2004-06-30)
75012668; Philips Microcontroller Line Card (2004-02-24)
75013987; Philips The Innovation Leader in Microcontrollers LPC2000/LPC900/LPC700 Series and 80C51 Family (2005-01-21)
75012107; Philips microcontroller solutions in action (2003-10-01)
75016051; The choice for embedded technologies (2007-07-01)
75015572; The innovation leader in microcontrollers (2006-09-01)
UM10113_1; User manual for the PNX2015 family (2005-05-06)

Parametrics/similar products

Type numberPackagePower
supply
RAM(bytes)System
Freq(MHz)
SPECIAL
FEATURES
FUNCTIONADCsWatchdog
timer
I/O
pins
Operating
temp.(Cel)
TimersPWMsMemory TypeSerial InterfacesExternal InterruptProgram SecuritySeriesNo. of PinsClock TypeMemory Size(kBits)Operating Frequency(MHz)Reset Active Low or High
P87C51MB2BA/02SOT187-2
(PLCC44)
2.7~5.5 2048 0~12@3V
0~24@5V
Extended Addressing Capabilities 8-bit 80C51 uController - yes 34 0~70 4 x 16-bit 5-ch PCA OTP 2 UARTs, SPI 2 yes 51MX based (80C51) 44 6-clk 64KB 0~24 High
P87C51MC2BA/02SOT187-2
(PLCC44)
2.7~5.5 3072 0~12@3V
0~24@5V
Extended Addressing Capabilities 8-bit 80C51 uController - yes 34 0~70 4 x 16-bit 5-ch PCA OTP 2 UARTs, SPI 2 yes 51MX-based (80C51) 44 6-clk 96KB 0~24 High

Similar products

P87C51MB2/P87C51MC2 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

Disclaimer

The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.


The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.


As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.


http://www.philips.semiconductors.com use http://www.nxp.com
http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)

The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-


If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.