C515 Datasheet, PDF (3/55 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

8-Bit CMOS Microcontroller
Advance Information
Data Sheet
• Full upward compatibility with SAB 80C515
• Up to 24 MHz external operating frequency
– 500ns instruction cycle at 24 MHz operation
• 8K 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
• Six 8-bit parallel I/O ports
• One input port for analog/digital input
• Full duplex serial interface (USART)
– 4 operating modes, fixed or variable baud rates
• Three 16-bit timer/counters
– Timer 0 / 1 (C501 compatible)
– Timer 2 for 16-bit reload, compare, or capture functions
(more features on next page)
C515
Power
Saving
Modes
Watchdog
Timer
8-Bit
A/D
Converter
T0
T2
T1
Port 6 Port 5 Port 4
RAM
256 x 8
Port 0
I/O
Port 1
I/O
CPU
USART
Port 2
I/O
ROM
8Kx 8
Port 3
I/O
Analog/ I/O
I/O
Digital
Input
MCA03198
Figure 1
C515 Functional Units
Semiconductor Group
3
1997-08-01