User’s Manual
1-1
05.99
Introduction
C513AO
1
Introduction
The C513AO microcontroller is a member of the Infineon Technologies C500 family of 8-bit
microcontrollers. It is an enhanced, upgraded version of the C513A 8-bit microcontroller and is fully
compatible with the industry-standard 8051 microcontroller.
The C513AO-2R incorporates 16Kx8 non-volatile read-only program memory, 512x8 volatile read/
write data memory, four 8-bit wide ports, three 16-bit timers/counters, an SPI-compatible
synchronous interface, versatile fail-safe and power-saving mechanisms. The C513AO-2E is the
One-Time Programmable (OTP) version of the C513AO microcontroller with a 16Kx8 OTP memory.
The C513AO-L is the version without program memory. The term C513AO refers to all versions
within the documentation unless otherwise noted.
Figure 1-1 shows the basic functional units of the C513AO. Figure 1-2 shows the simplified logic
symbol of the C513AO device.
Figure 1-1
C513AO Functional Units
MCB04006
I/O
I/O
I/O
I/O
On-Chip Emulation Support Module
Watchdog Timer
SSC
Interface
Timer 2
Oscillator
Watchdog
XRAM
256 x 8
XRAM
256 x 8
T0
T1
ROM/OTP
16 K x 8
Port 3
Port 2
Port 1
Port 0
8-Bit
USART
C500
Core
