C517A Datasheet, PDF (3/72 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

8-Bit CMOS Microcontroller
Advance Information
• Full upward compatibility with SAB 80C517A/83C517A-5
• Up to 24 MHz external operating frequency
– 500 ns instruction cycle at 24 MHz operation
• Superset of the 8051 architecture with 8 datapointers
• On-chip emulation support logic (Enhanced Hooks Technology ^TM)
• 32K byte on-chip ROM (with optional ROM protection)
– alternatively up to 64K byte external program memory
• Up to 64K byte external data memory
• 256 byte on-chip RAM
• Additional 2K byte on-chip RAM (XRAM)
• Seven 8-bit parallel I/O ports
• Two input ports for analog/digital input
(further features are on next page)
C517A
C517A
Oscillator
Watchdog
Watchdog
Timer
XRAM
2K x 8
RAM
256 x 8
Port 0
I/O
T0
Port 1
I/O
Power ^CCU
Compare
Timer
T2
CPU
(8 Datapointer)
MDU
Saving
T1
Port 2
I/O
Modes
10-Bit
A/D Converter
ROM
32k x 8
Port 3
I/O
8 Bit
USART
8 Bit
UART
Port 8 Port 7 Port 6 Port 5 Port 4
I/O
Analog/ Analog/ I/O I/O
Digital Digital
Input Input
MCA03317
Figure 1
C517A Functional Units
Semiconductor Group
1