C501 datasheet(3/48 Pages) INFINEON

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C501

Semiconductor Group

1997-04-01

8-Bit CMOS Microcontroller

Preliminary

C501

• Fully compatible to standard 8051 microcontroller

• Versions for 12/24/40 MHz operating frequency

• Program memory : completely external (C501-L)

× 8 ROM (C501-1R)

× 8 OTP memory (C501-1E)

• 256

× 8 RAM

• Four 8-bit ports

• Three 16-bit timers / counters (timer 2 with up/down counter feature)

• USART

• Six interrupt sources, two priority levels

• Power saving modes

• Quick Pulse programming algorithm (C501-1E only)

• 2-Level program memory lock (C501-1E only)

• P-DIP-40, P-LCC-44, and P-MQFP-44 package

• Temperature ranges :

SAB-C501

: 0 ˚C to 70 ˚C

SAF-C501

: – 40 ˚C to 85 ˚C

Figure 1

C501G Functional Units

MCA03238

Port 0

Port 1

Port 2

Port 3

RAM

256 x 8

CPU

USART

Power

Saving

8K x 8 OTP (C501-1E)

Modes

8K x 8 ROM (C501-1R)

Ι/O

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