C511_1 Datasheet, PDF (6/128 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

Introduction
1 Introduction
The C511-R, C511A-R, C513-R, C513A-R, C513A-2R, and C513A-H are members of a family of
low cost microcontrollers, which are software compatible with the components of the SAB 8051,
SAB 80C51 and C500 families.
The five versions with the “-R” extension contain a non-volatile read-only program memory (ROM).
The C513A-H is a version with a 12 Kbyte EEPROM instead of ROM. This device can be used for
prototype designs which have a demand for reprogrammable on-chip code memory.
The microcontroller versions differ in functionality according table 1-1. They offer different ROM
sizes, different RAM/XRAM sizes and a different timer/USART configuration. Common to all
devices is an advanced SSC serial port, a second synchronous serial interface, which is compatible
to the SPI serial bus industry standard. Except the EEPROM size, the functionality of the C513A-H
is a superset of all ROM versions of the C511/513 family.
In this user manual the microcontroller family is also referenced with the term C511/513 and the
ROM versions are referenced without the “-R” extension. If some of the features described are
applicable to selected family members only, this will be explicitly stated.
Table 1-1
Functionality of the C511/513 MCUs
Device
C511
C511A
C513
C513A
C513A-H
ROM
Size
EEPROM RAM
Size
Size
2.5 KB –
128 B
4 KB
–
256 B
8 KB
–
256 B
12/16 KB –
256 B
–
12 KB
256 B
XRAM
Size
–
–
–
256 B
256 B
Timers ¹⁾ USART ²⁾ SSC ³⁾
T0, T1
–

T0, T1
–

T0, T1, T2 

T0, T1, T2 

T0, T1, T2 

Note: 1) T0 and T1 are the standard 16-bit timer. T2 is the 16-bit timer with autoreload.
2) USART is the Universal Synchronous/Asynchronous Receive/Transmit interface.
3) SSC is the Synchronous Serial Channel (SPI compatible interface).
According table 1-1, figure 1-1 to figure 1-4 show the functional units of the members of the C511/
513 family microcontrollers.
Semiconductor Group
1-1