P80CL31 datasheet(3/68 Pages) PHILIPS

3 / 68 page

1997 Apr 15

Philips Semiconductors

Product speciﬁcation

Low voltage 8-bit microcontrollers with

UART

P80CL31; P80CL51

FEATURES

• Full static 80C51 Central Processing Unit

• 8-bit CPU, ROM, RAM, I/O in a 40-lead DIP,

40-lead VSO or 44-lead QFP package

• 128 bytes on-chip RAM Data Memory

• 4 kbytes on-chip ROM Program Memory for P80CL51

• External memory expandable up to 128 kbytes: RAM up

to 64 kbytes and ROM up to 64 kbytes

• Four 8-bit ports; 32 I/O lines

• Two 16-bit Timer/Event counters

• On-chip oscillator suitable for RC, LC, quartz crystal or

ceramic resonator

• Thirteen source, thirteen vector, nested interrupt

structure with two priority levels

• Full duplex serial port (UART)

• Enhanced architecture with:

– non-page oriented instructions

– direct addressing

– four 8-byte RAM register banks

– stack depth limited only by available internal RAM

(maximum 128 bytes)

– multiply, divide, subtract and compare instructions

• Reduced power consumption through Power-down and

Idle modes

• Wake-up via external interrupts at Port 1

• Frequency range: 0 to 16 MHz (P80C51: 3.5 MHz min.)

• Supply voltage: 1.8 to 6.0 V (P80C51: 5.0 V ±10%)

• Very low current consumption

• Operating ambient temperature range: −40 to +85 °C.

GENERAL DESCRIPTION

The P80CL31; P80CL51 (hereafter generally referred to

as the P80CLx1) is manufactured in an advanced CMOS

technology. The P80CLx1 has the same instruction set as

the 80C51, consisting of over 100 instructions:

49 one-byte, 46 two-byte, and 16 three-byte. The device

operates over a wide range of supply voltages and has low

power consumption; there are two software selectable

modes for power reduction: Idle and Power-down.

For emulation purposes, the P85CL000 (piggy-back

version) with 256 bytes of RAM is recommended.

This data sheet details the specific properties of the

P80CL31; P80CL51. For details of the 80C51 core see

“Data Handbook IC20”.

2.1

Versions: P80CL31 and P80C51

The P80CL31 is the ROMless version of the P80CL51.

The mask options on the P80CL31 are fixed as follows:

• All ports have option ‘1S’ (standard, HIGH after reset)

• Oscillator option: Oscillator 3

• Power-on-reset option: OFF.

The P80C51 is a restricted-voltage range version of the

P80CL51. The operating voltage is 5.0 V

±10%.

APPLICATIONS

The P80CLx1 is especially suited for real-time applications

such as instrumentation, industrial control, intelligent

computer peripherals and consumer products.

The P80CLx1 also functions as an arithmetic processor

having facilities for both binary and BCD arithmetic plus

bit-handling capabilities.

P80CL31 Datasheet(PDF) 3 Page - NXP Semiconductors

P80CL31 Datasheet(HTML) 3 Page - NXP Semiconductors

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