參數(shù)資料
型號: SAB-C505-2RM
廠商: SIEMENS A G
元件分類: 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
文件頁數(shù): 12/85頁
文件大小: 335K
代理商: SAB-C505-2RM
Semiconductor Group
12
1997-12-01
C505 / C505C
C505A / C505CA
EA
29
I
External Access Enable
When held at high level, instructions are fetched from the
internal ROM or OTP memory when the PC is less than
4000H (C505 and C505C) or less than 8000H (C505A and
C505CA). When held at low level, the C505 fetches all
instructions from external program memory. EA should not
be driven during reset operation.
For the C505-L and the C505C-L this pin must be tied low.
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 C505-2R/C505C-2R. External pullup
resistors are required during program verification.
V
AREF
V
AGND
V
SS
V
CC
*) I = Input
O= Output
38
Reference voltage
for the A/D converter.
39
Reference ground
for the A/D converter.
16
Ground
(0 V)
17
Power Supply
(+ 5 V)
Table 3
Pin Definitions and Functions
(cont’d)
Symbol
Pin Number
I/O
*)
Function
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAB-C505A-4EM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C505A-4EM-BA 制造商:Rochester Electronics LLC 功能描述:- Bulk
SAB-C505C-2RM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C505CA-4EM 制造商:Infineon Technologies 功能描述:Bulk
SAB-C505CA-4EM CA 功能描述:8位微控制器 -MCU 8 BIT OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT