參數(shù)資料
型號: SAB-C502-2RP
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, 6 MHz, MICROCONTROLLER, PDIP40
文件頁數(shù): 8/46頁
文件大小: 567K
代理商: SAB-C502-2RP
Semiconductor Group
7
C502
Pin Definitions and Functions
Symbol
Pin Number
I/O*)
Function
P-LCC-44
P-DIP-40
P1.7 – P1.0
9–2
2
3
8–1
1
2
I
Port 1
is a bidirectional I/O port with internal pull-up
resistors. Port 1 pins that have 1s written to
them are pulled high by the internal pull-up
resistors, and in that state can be used as
inputs. As inputs, port 1 pins being externally
pulled low will source current (
I
IL
, in the DC
characteristics) because of the internal pull-up
resistors. Port 1 also contains the timer 2 pins
as secondary function. The output latch corre-
sponding to a secondary function must be pro-
grammed to a one (1) for that function to
operate.
The secondary functions are assigned to the
pins of port 1, as follows:
P1.0
P1.1
T2
T2EX Capture - Reload trigger of
timer 2 / Up-Down count
Input to counter 2
*) I = Input
O = Output
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相關代理商/技術參數(shù)
參數(shù)描述
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