C868 datasheet(5/82 Pages) INFINEON

Part #	C868

Description	8-Bit Single-Chip Microcontroller

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Manufacturer	INFINEON [Infineon Technologies AG]

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Data Sheet

5

V 1.0, 2003-05

C868

8-Bit Single-Chip Microcontroller

C800 Family

C868

Advance Information

• C800 core :

–Fully compatible to standard 8051 microcontroller

–Superset of the 8051 architecture with 8 datapointers

• 40 MHz internal CPU clock

–external clock of 6.67 - 10.67 MHz at 50% duty cycle

–300 ns instruction cycle time (@37.5 MHz CPU clock)

• 8 Kbyte on-chip Program ROM for C868-1R and 8 KByte on-chip Program RAM for

C868-1S

• In-system programming support for programming the XRAM(C868-1R) or XRAM/

Program RAM(C868-1S)

–This feature is realized through 4KB Boot ROM

• 256 byte on-chip RAM

• 256 byte on-chip XRAM

(further features are on the next page)

Figure 1

C868 Functional Units

8-bit

UART

I/O

XRAM

256

× 8

Timer 2

Watchdog Timer

Port 1

5-bit

I/O

8-bit

Port 3

CPU

8 datapointers

8-Bit ADC

16-bit

Capture/

RAM

256

× 8

Boot ROM

4K x 8

Compare

Unit

Timer 0

Timer 1

Analog/

ROM/RAM

8K

× 8

Digital

Input

16-bit Compare

Unit

Input

3-bit

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