C505A-4E 데이터 시트보기 (PDF) - Siemens AG

부품명

상세내역

제조사

C505A-4E

8-Bit CMOS Microcontroller

Siemens AG 

Introduction

C505A

1 Introduction

The C505A is an enhanced, upgraded version of the C505-2R eight bit microcontroller and

incorporates more on-chip RAM, a 10-bit A/D Converter and 32K bytes of on-chip OTP memory.

With a maximum external clock rate of 20 MHz, the C505A has an instruction cycle time of 300 ns.

With the C505A-4E fast OTP programming cycles are achieved (1 byte in 100 µsec). Also several

levels of OTP memory protection can be selected. The basic functionality of the C505A-4E as a

microcontroller is identical to the C505A-L (romless part) functionality. Therefore, the

programmable C505A-4E typically can be used for prototype system design.

The C505A-4E basically operates with internal OTP and/or external program memory. The C505A-

L is identical to the C505A-4E, except that it lacks the on-chip OTP memory. Therefore, in this

documentation the term C505A refers to all versions within this specification unless otherwise

noted.

The C505CA-4E and C505CA-L, are identical to the C505A-4E and the C505A-L respectively,

except that they have, in addition, the full CAN interface. The term C505A refers to all the above four

versions within this documentation unless otherwise noted.

Figure 1-1 shows the different functional units of the C505A and Figure 1-2 shows the simplified

logic symbol of the C505A.

Oscillator

Watchdog

10-bit ADC

Timer 2

Full-CAN

Controller

Watchdog Timer

XRAM

1K×8

RAM

256 × 8

Port 0

Port 1

T0

CPU

8-bit

USART

Port 2

T1 8 datapointers

Port 3

OTP

32 K × 8

Port 4

I/O

8 analog inputs /

8 digit. I/O

I/O

I/O

I/O (2-bit I/O port)

Enhancements over C505/C505C.

C505CA only.

Figure 1-1

C505A Functional Units

Note: This specification describes only the improved functionality over C505/C505C. Please refer to

the C505/C505C User’s Manual for further details.

Semiconductor Group

1-1

Share Link: