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參數(shù)資料
| 型號： | DS80CH11 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Microcontroller |
| 英文描述： | 8-BIT, MICROCONTROLLER, PQFP128 |
| 封裝： | TQFP-128 |
| 文件頁數(shù)： | 2/88頁 |
| 文件大?。?/td> | 598K |
| 代理商： | DS80CH11 |
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DS80CH11
011200 10/88
PIN
SYMBOL
DESCRIPTION
87
88
89
90
91
92
93
94
P1.0 (T2)
P1.1 (T2EX)
P1.2 SCL1
P1.3 SDA1
P1.4 SCL2
P1.5 SDA2
P1.6
P1.7
Port 1/ (Alternate Functions): – I/O. Port 1 provides eight lines which can be individu-
ally selected as bi–directional I/O port pins or as the alternate functions listed below:
Alternate
Port
Function
Description
P1.0
T2
External I/O for Timer/Counter 2
P1.1
T2EX
Timer/Counter 2 Capture/Reload Trigger
P1.2
SCL1
2–Wire Serial Clock 1
P1.3
SDA1
2–Wire Serial Data 1
P1.4
SCL2
2–Wire Serial Clock 2
P1.5
SDA2
2–Wire Serial Data 2
P1.6
(None)
P1.7
(None)
Note that P1.7 – P1.2 are high–drive pins which are always open–drain and must be
used with external pull–ups when used as I/O port pins. P1.1 and P1.0 have internal
pull–up resistors.
109
110
111
112
113
114
115
116
P2.0 (A8)
P2.1 (A9)
P2.2 (A10)
P2.3 (A11)
P2.4 (A12)
P2.5 (A13)
P2.6 (A14)
P2.7 (A15)
Port 2 / Address Outputs A15–8: – I/O. Port 2 is a pseudo–bi–directional I/O port with
internal pull–up resistors. As an alternate function Port 2 can function as MSB of the
external address bus.
95
96
97
98
99
100
103
104
P3.0(RXD0)
P3.1 (TXD0)
P3.2 (INT0)
P3.3 (INT1)
P3.4 (T0)
P3.5 (T1)
P3.6 (WR)
P3.7 (RD)
Port 3 / (Alternate Functions): – I/O. Port 3 provides eight lines each of which can
serve as psuedo–bi–directional I/O port pins or as the alternate functions as listed
below. Internal pull–up resistors are always present on these pins.
Alternate
Port
Function
Description
P3.0
RXD0
Serial Port 0 Input
P3.1
TXD0
Serial Port 0 Output
P3.2
INT0
External Interrupt 0
P3.3
INT1
External Interrupt 1
P3.4
T0
Timer 0 External Input
P3.5
T1
Timer 1 External Input
P3.6
WR
External Data Memory Write Strobe
P3.7
RD
External Data Memory Read Strobe
77
78
79
80
81
82
83
84
P4.0 (KSI.0)
P4.1 (KSI.1)
P4.2 (KSI.2)
P4.3 (KSI.3)
P4.4 (KSI.4)
P4.5 (KSI.5)
P4.6 (KSI.6)
P4.7 (KSI.7)
Port 4 / KSI.7–0: – I/O / Keyboard Scan Inputs. Port 4 provides eight lines which can be
individually selected as psuedo–bi–directional I/O port pins or as an interrupt Inputs for
key scanning. Port 4 pins incorporate Schmitt inputs with pull–up resistors.
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