N e v e r s t o p t h i n k i n g .
M i c r o c o n t r o l l e r s
D a t a S h e e t , V 1 . 0 , M a y 2 0 0 3
C 8 6 8
8 - B i t S i n g l e - C h i p M i c r o c o n t r o l l e r
Edition 2003-05
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 Mnchen, Germany
Infineon Technologies AG 2003.
All Rights Reserved.
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M i c r o c o n t r o l l e r s
D a t a S h e e t , V 1 . 0 , M a y 2 0 0 3
N e v e r s t o p t h i n k i n g .
C 8 6 8
8 - B i t S i n g l e - C h i p M i c r o c o n t r o l l e r
C868
Revision History:
2003-05
V 1.0
Previous Version:
-
Page
Subjects (major changes since last revision)
Current data updated
Description of I2C included
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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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