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參數(shù)資料
| 型號： | IS80C31-12PQI |
| 廠商： | INTEGRATED SILICON SOLUTION INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, 12 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 6/43頁 |
| 文件大?。?/td> | 337K |
| 代理商： | IS80C31-12PQI |
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IS80C51
IS80C31
6
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC003-1D
11/19/98
ISSI
P3.0-P3.7
10-17
11, 13-19
5, 7-13
I/O
Port 3:
Port 3 is an 8-bit bidirectional I/O port with internal
pullups. Port 3 pins that have 1s written to them are pulled high
by the internal pullups and can be used as inputs. As inputs,
Port 3 pins that are externally pulled low will source current
because of the internal pullups. (See DC Characteristics: I
IL
).
Port 3 also serves the special features of the IS80LV51/31, as
listed below:
10
11
12
13
14
15
16
17
11
13
14
15
16
17
18
19
5
7
8
9
10
11
12
13
I
RxD (P3.0):
Serial input port.
TxD (P3.1):
Serial output port.
INT0
(P3.2):
External interrupt 0.
INT1
(P3.3):
External interrupt 1.
T0 (P3.4):
Timer 0 external input.
T1 (P3.5):
Timer 1 external input.
WR
(P3.6):
External data memory write strobe.
RD
(P3.7):
External data memory read strobe.
O
I
I
I
I
O
O
PSEN
29
32
26
O
Program Store Enable:
The read strobe to external program
memory. When the device is executing code from the external
program memory,
PSEN
is activated twice each machine cycle
except that two
PSEN
activations are skipped during each
access to external data memory.
PSEN
is not activated during
fetches from internal program memory.
RST
9
10
4
I
Reset:
A high on this pin for two machine cycles while the
oscillator is running, resets the device. An internal MOS resistor
to GND permits a power-on reset using only an external
capacitor connected to Vcc.
XTAL 1
19
21
15
I
Crystal 1:
Input to the inverting oscillator amplifier and input
to the internal clock generator circuits.
XTAL 2
18
20
14
O
Crystal 2:
Output from the inverting oscillator amplifier.
GND
20
22
16
I
Ground:
0V reference.
Vcc
40
44
38
I
Power Supply:
This is the power supply voltage for operation.
Table 1. Detailed Pin Description (continued)
Symbol
PDIP
PLCC
PQFP
I/O
Name and Function
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IS80C31-12W | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-12WI | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-24PL | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-24PLI | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-24PQ | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS80C31-12W | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-12WI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| IS80C31-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| IS80C31-24PL | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
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