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參數資料
型號: Q67127-C1072
廠商: SIEMENS AG
元件分類: 8位微控制器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件頁數: 8/48頁
文件大小: 319K
代理商: Q67127-C1072
C501
Semiconductor Group
8
1997-04-01
Table 1
Pin Definitions and Functions
Symbol
Pin Number
I/O*) Function
P-LCC-44 P-DIP-40 P-MQFP-44
P1.0 – P1.7 2–9
2
3
1–8
1
2
40–44,
1–3,
40
41
I/O
Port 1
is a quasi-bidirectional I/O port with
internal pull-up resistors. Port 1 pins that
have 1s written to them are pulled high by
the internal pullup 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 character-
istics) because of the internal pull-up
resistors. Port 1 also contains the timer 2
pins as secondary function. The output
latch corresponding 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
T2
Input to counter 2
P1.1
T2EX Capture - Reload trigger of
timer 2 / Up-Down count
*) I
= Input
O = Output
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