C501G-1E SIEMENS [Siemens Semiconductor Group], C501G-1E Datasheet - Page 17

• Manufacturer Part Number: C501G-1E
• Description: 8-Bit Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

2
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 8051 microcontroller family, the C501 incorporates some enhancements in the
timer 2 and fail save mechanism unit.
Figure 2-6 shows a block diagram of the C501.
Figure 2-6
Block Diagram of the C501
Semiconductor Group
V
V
RESET
ALE/PROG
PSEN
XTAL1
EA/
XTAL2
Fundamental Structure
CC
SS
V
PP
C501
Serial Channel
OSC & Timing
Interrupt Unit
(USART)
Timer 0
Timer 2
Timer 1
CPU
2-1
256 x 8
RAM
C501-1R : ROM
C501-1E : OTP
Port 0
Port 2
Port 3
Port 1
8K x 8
Fundamental Structure
MCB03219
Port 0
8-Bit Digit.
Port 1
8-Bit Digit. /O
Port 2
8-Bit Digit. /O
Port 3
8-Bit Digit. /O
/O
C501