C509-L_97 Datasheet, PDF (8/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

Introduction
C509-L
1Introduction
The C509-L is a high-end microcontroller in the Siemens SAB-C500 8-bit microcontroller family. lt
is based on the well-known industry standard 8051 architecture; a great number of enhancements
and new peripheral features extend its capabilities to meet the extensive requirements of new
applications. Further, the C509-L is a superset of the Siemens SAB 80C517/80C517A 8-bit
microcontroller thus offering an easy upgrade path for SAB 80C517/80C517A users.
The high performance of the C509-L microcontroller is achieved by the C500-Core with a maximum
operating frequency of 16 MHz internal (and external) CPU clock. While maintaining all the features
of the SAB 80C517A, the C509-L is expanded by one I/O port, in its compare/capture capabilities,
by A/D converter functions, by additional 1 KByte of on-chip RAM (now 3 KByte XRAM) and by an
additional user-selectable CMOS port structure. The C509-L is mounted in a P-MQFP-100-2
package.
Figure 1-1 shows the different functional units of the C509-L and figure 1-2 shows the simplified
logic symbol of the C509-L.
C509
Watchdog
RAM
256 x 8
Boot ROM 512 x 8
Oscillator
Watchdog
8-Bit UART
T0
T2
T1
CPU
C500-Core
(8-Dataptr)
XRAM ^{Port 4}
3 K x 8 _{Port 4}
I/O
I/O
HW/SW
Power
Down
Modes
MDU
Comp. _{10-Bit ADC}
Timer 1
Port 4
CCU ^Comp.
Timer 1 _{Port 4}
I/O
I/O
8-Bit USART Port 9 Port 8 Port 7 Port 6 Port 5 Port 4
I/O
I/O analog/ analog/ I/O I/O I/O
digit. digit.
input input
Improved functionality in
comparison to the SAB 80C517A.
Figure 1-1
C509-L Functional Units
MCB02493
Semiconductor Group
1-1
1997-10-01