C541U 查看數據表（PDF） - Infineon Technologies

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C541U

8-Bit CMOS Microcontroller

Infineon Technologies 

8-Bit CMOS Microcontroller

Advance Information

• Enhanced 8-bit C500 CPU

– Full software/toolset compatible to standard 80C51/80C52 microcontrollers

• 12 MHz external operating frequency

– 500 ns instruction cycle

• Built-in PLL for USB synchronization

• On-chip OTP program memory

– C540U : 4K byte

– C541U : 8K byte

– Alternatively up to 64K byte external program memory

– Optional memory protection

• On-chip USB module

– Compliant to USB specification

– Full speed or low speed operation

– Five endpoints : one bidirectional control endpoint

four versatile programmable endpoints

– Registers are located in special function register area

– On-chip USB transceiver

C540U

C541U

Oscillator Watchdog

Watchdog Timer

RAM

256 x 8

Port 0

Power

Saving

Modes

SSC

USB

Module

USB Transceiver

T0

CPU

T1

OTP Prog. Memory

C540U : 4 k x 8

C541U : 8 k x 8

Port 1

Port 2

Port 3

D+ D-

The shaded units are not available in the C540U.

I/O

I/O

I/O

I/O

MCA03373

Semiconductor Group

3

1997-10-01

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