P87CL881H View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

P87CL881H

Low-voltage microcontroller with 63-kbyte OTP program memory and 2-kbyte RAM / LQFP44 Package

Philips Electronics 

Philips Semiconductors

Low-voltage microcontroller with 63-kbyte

OTP program memory and 2-kbyte RAM

Product specification

P87CL881H

1 FEATURES

• Full static 80C51 CPU; enhanced 8-bit architecture with:

– Minimum 6 cycles per instruction (twice as fast as a

standard 80C51 core)

– Non-page oriented instructions

– Direct addressing

– Four 8-byte RAM register banks

– Stack depth limited only by available internal RAM

(maximum 256 bytes)

– Multiply, divide, subtract and compare instructions.

• Very low current consumption

• Single supply voltage of 2.7 to 3.6 V

• Frequency: 1 to 10 MHz

• Operating temperature: −25 to +70 °C

• 44-pin LQFP package

• Four 8-bit ports (32 I/O lines)

• 63-kbyte One-Time Programmable (OTP) program

memory; programmable in parallel mode or in-system

via I2C-bus interface.

• 256-byte internal RAM

• 1792-byte internal AUX-RAM

• External address range: 64 kbytes of ROM and

64 kbytes of RAM

• Amplitude Controlled Oscillator (ACO) suitable for use

with a quartz crystal or ceramic resonator

• Improved Power-on/Power-off reset circuitry (POR)

• Low Voltage Detection (LVD) with 11 software

programmable levels

• 8 interrupts on Port 1, edge or level sensitive triggering

selectable via software power-saving use for keyboard

control

• Twenty source, twenty vector interrupt structure with two

priority levels

• Wake-up from Power-down mode via LVD or external

interrupts at Port 1

• Two 16-bit timer/event counters

• Additional 16-bit timer/event counters, with capture,

compare and PWM function

• Watchdog Timer

• Full duplex enhanced UART with double buffering

• I2C-bus interface for serial transfer on two lines,

maximum operating frequency 400 kHz.

2 GENERAL DESCRIPTION

The P87CL881 is an 8-bit microcontroller especially suited

for pager applications.

The P87CL881 is manufactured in an advanced CMOS

technology and is based on single chip technology.

The device is optimized for low power consumption and

has two software selectable features for power reduction:

Idle and Power-down modes. In addition, all derivative

blocks switch off their clock if they are inactive.

The instruction set of the P87CL881 is based on that of

the 80C51. The P87CL881 also functions as an arithmetic

processor having facilities for both binary and BCD

arithmetic plus bit-handling capabilities. The instruction set

consists of over 100 instructions: 49 one-byte,

46 two-byte, and 16 three-byte.

This data sheet details the specific properties of the

P87CL881; for details of the P87CL881 core and the

derivative functions see the “TELX family” data sheet and

“8051-Based 8-bit Microcontrollers; Data Handbook IC20”.

3 ORDERING INFORMATION

TYPE

NUMBER(1)

PRODUCT TYPE

P87CL881H/000 Blank OTP

P87CL881H/xxx Factory-programmed OTP

NAME

LQFP44

PACKAGE

DESCRIPTION

VERSION

plastic low profile quad flat package; SOT389-1

44 leads; body 10 × 10 × 1.4 mm

Note

1. Please refer to the Order Entry Form (OEF) for this device for the full type number to use when ordering. This type

number will also specify the required program and options.

1999 Apr 16

3

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