參數(shù)資料
型號(hào)： SAF-C505-LM
廠商： SIEMENS A G
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-Bit CMOS Microcontroller
中文描述： 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
封裝： PLASTIC, MQFP-44
文件頁(yè)數(shù)： 3/85頁(yè)
文件大小： 487K
代理商： SAF-C505-LM
Data Sheet
1
06.99
8-Bit CMOS Microcontroller
Advance Information
C505L
Features
Fully compatible with the standard 8051 microcontroller
Superset of the 8051 architecture with 8 datapointers
Up to 20 MHz operating frequency
– 375 ns instruction cycle time @ 16 MHz
– 300 ns instruction cycle time @ 20 MHz (50% duty cycle)
Program Memory
– 32K bytes of on-chip OTP memory
– Externally expandable up to 64 Kbytes
256-byte on-chip RAM
256-byte on-chip XRAM
Five 8-bit and one 6-bit digital I/O ports (Port 5 with 6 bits only)
– Port 1 with mixed analog/digital I/O capability
– Port 3 with 2 LCD output lines as secondary functions
– Port 4 and 5 with 8 and 6 LCD output lines respectively as secondary functions
(more features are on next page)
Figure 1
C505L Functional Units
8 Digit. I / O
8 Analog Inputs /
8 Digit. I / O
MCB03832
O
Port 4
Port 3
Port 2
Port 1
Port 0
8 Digit. I / O
2 LCD Outputs /
8 Digit. I / O
8 LCD Outputs /
Real-Time Clock
Timer 2
10-Bit ADC
T 0
T 1
Oscillator
Watchdog
Watchdog Timer
CPU
8 Datapointers
128-Segment LCD Control
XRAM
256 x 8
256 x 8
RAM
8-Bit
USART
Port 5
OTP 32k x 8
4-Channel PWM
8 Digit. I / O
6 LCD Outputs /
6 Digit. I / O
20 LCD Outputs
OTP 32k x 8
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