P89C51X2BA datasheet(2/48 Pages) PHILIPS

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Philips Semiconductors

Preliminary data

P89C51X2/52X2/54X2/58X2

80C51 8-bit Flash microcontroller family

4K/8K/16K/32K Flash

2002 Jun 06

DESCRIPTION

The Philips microcontrollers described in this data sheet are

high-performance static 80C51 designs. They are manufactured in

an advanced CMOS process and contain a non-volatile Flash

program memory. They support both 12-clock and 6-clock operation.

The P89C51X2 and P89C52X2/54X2/58X2 contain 128 byte RAM

and 256 byte RAM respectively, 32 I/O lines, three 16-bit

counter/timers, a six-source, four-priority level nested interrupt

structure, a serial I/O port for either multi-processor

communications, I/O expansion or full duplex UART, and on-chip

oscillator and clock circuits.

In addition, the devices are static designs which offer a wide range

of operating frequencies down to zero. Two software selectable

modes of power reduction — idle mode and power-down mode —

are available. The idle mode freezes the CPU while allowing the

RAM, timers, serial port, and interrupt system to continue

functioning. The power-down mode saves the RAM contents but

freezes the oscillator, causing all other chip functions to be

inoperative. Since the design is static, the clock can be stopped

without loss of user data. Then the execution can be resumed from

the point the clock was stopped.

SELECTION TABLE

For applications requiring more Flash and RAM, as well as more

on-chip peripherals, see the P89C66x and P89C51Rx2 data sheets.

Type

Memory

Timers

Serial Interfaces

Max.

Freq.

at 6-clk

/ 12-clk

(MHz)

Freq.

Range

(MHz)

Freq.

Range

(MHz)

P89C58X2

256B

–

32K

–

6 (2)

12–clk

6-clk

20/33

–

0–20/33

P89C54X2

256B

–

16K

–

6 (2)

12–clk

6-clk

20/33

–

0–20/33

P89C52X2

256B

–

6 (2)

12–clk

6-clk

20/33

–

0–20/33

P89C51X2

128B

–

6 (2)

12–clk

6-clk

20/33

–

0–20/33

NOTE:

1. I2C = Inter-Integrated Circuit Bus; CAN = Controller Area Network; SPI = Serial Peripheral Interface; PCA = Programmable Counter Array;

ADC = Analog-to-Digital Converter; PWM = Pulse Width Modulation

DEVICE COMPARISON TABLE

Item

P89C5xX2 devices (this data

sheet)

P89C5xBx devices (separate data

sheet)

P89C5xUxx devices

(discontinued)

Type Description

P89C5xX2Bxx/P89C5xX2Fxx

P89C5xBx

P89C5xUBxx/P89C5xUFxx

PROGRAMMING

ALGORITHM

When using a parallel programmer,

be sure to select P89C5xX2 devices.

IF DEVICES ARE NOT YET

SELECTABLE ASK YOUR

PROGRAMMER VENDOR FOR A

SOFTWARE UPDATE

When using a parallel programmer,

be sure to select P89C5xBx devices.

IF DEVICES ARE NOT YET

SELECTABLE ASK YOUR

PROGRAMMER VENDOR FOR A

SOFTWARE UPDATE

When using a parallel programmer,

be sure to select P89C5xUxxx

devices.

Quad Flat Package

type

LQFP package (P89C5xX2xBD)

LQFP package (P89C5xBBD)

PQFP package (P89C5xUxBB)

Package identifiers

PLCC = A

LQFP = BD

PDIP = N

PLCC = A

LQFP = BD

PDIP = P

PLCC = AA

LQFP = BB

PDIP = PN

Flash Memory program

and erase cycles

10,000 program and erase cycles

100 program and erase cycles

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