- 您现在的位置：买卖IC网 > PDF目录69330 > SAH-C505-L (INFINEON TECHNOLOGIES AG) 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 PDF资料下载
参数资料
| 型号： | SAH-C505-L |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | METRIC, PLASTIC, QFP-44 |
| 文件页数： | 6/88页 |
| 文件大小： | 1224K |
| 代理商： | SAH-C505-L |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页
C505/C505C/C505A/C505CA
Data Sheet
10
12.00
EA
29
I
External Access Enable
When held at high level, instructions are fetched from the
internal program memory when the PC is less than 4000H
(C505(C)(A)-2R) or 8000H (C505A-4R/C505CA-4R/C505A-
4E/C505CA-4E). When held at low level, the C505 fetches
all instructions from external program memory.
For the C505 romless versions (i.e. C505-L, C505C-L,
C505A-L and C505CA-L) this pin must be tied low.
For the ROM protection version EA pin is latched during
reset.
P0.0-P0.7
37-30
I/O
Port 0
is an 8-bit open-drain bidirectional I/O port. Port 0 pins that
have 1’s written to them float, and in that state can be used
as high-impendance inputs. Port 0 is also the multiplexed
low-order address and data bus during accesses to external
program or data memory. In this application it uses strong
internal pullup transistors when issuing 1’s.
Port 0 also outputs the code bytes during program
verification in the C505 ROM versions. External pullup
resistors are required during program verification.
VAREF
38
–
Reference voltage for the A/D converter.
VAGND
39
–
Reference ground for the A/D converter.
VSS
16
–
Ground (0V)
VDD
17
–
Power Supply (+5V)
*) I = Input
O= Output
Table 2
Pin Definitions and Functions (cont’d)
Symbol
Pin Number
I/O
*)
Function
相关PDF资料 |
PDF描述 |
|---|---|
| SAH-C505A-L | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAK-C505A-4R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAB-C505A-4E | 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAB-C505A-L | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAF-C505A-4R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SAH-C515 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAH-C515A-4R | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAH-C517A | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-bit CMOS MICROCONTROLLER |
| SAHC684M50R501 | 制造商:SHARMA 制造商全称:Sharma Electro Components,Inc 功能描述:Tantalum Capacitors |
| SAHC685M20R501 | 制造商:SHARMA 制造商全称:Sharma Electro Components,Inc 功能描述:Tantalum Capacitors |
发布紧急采购，3分钟左右您将得到回复。