SAB-C501G-1E24N SIEMENS [Siemens Semiconductor Group], SAB-C501G-1E24N Datasheet - Page 13

• Manufacturer Part Number: SAB-C501G-1E24N
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Functional Description
The C501 is fully compatible to the standard 8051 microcontroller family.
It is compatible with the 80C32/52/82C52. While maintaining all architectural and operational
characteristics of the 8051microcontroller family, the C501 incorporates some enhancements in the
timer 2 unit.
Figure 6 shows a block diagram of the C501.
Figure 6
Block Diagram of the C501
Semiconductor Group
V
V
RESET
ALE/PROG
PSEN
XTAL1
XTAL2
EA/
CC
SS
V
PP
C501
Serial Channel
OSC & Timing
Interrupt Unit
(USART)
Timer 0
Timer 2
Timer 1
CPU
13
256 x 8
RAM
C501-1R : ROM
C501-1E : OTP
Port 0
Port 2
Port 3
Port 1
8K x 8
MCB03219
Port 0
8-Bit Digit.
Port 1
8-Bit Digit. /O
Port 2
8-Bit Digit. /O
Port 3
8-Bit Digit. /O
1997-04-01
/O
C501