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參數(shù)資料
| 型號(hào)： | 935260833557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, SOT-389-1, LQFP-44 |
| 文件頁數(shù)： | 33/35頁 |
| 文件大?。?/td> | 176K |
| 代理商： | 935260833557 |
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1999 Apr 16
7
Philips Semiconductors
Product specication
Low-voltage microcontroller with 63-kbyte
OTP program memory and 2-kbyte RAM
P87CL881H
P0.0/AD0
37
Port 0. 8-bit bidirectional I/O port with alternative functions. Every port pin can be used
as open-drain, standard port, high-impedance input or push-pull output, according to
Section 6.2. AD7 to AD0 provide the multiplexed low-order address and data bus during
accesses to external memory.
P0.1/AD1
36
P0.2/AD2
35
P0.3/AD3
34
P0.4/AD4
33
P0.5/AD5
32
P0.6/AD6
31
P0.7/AD7
30
P1.0/INT2/T2
40
Port 1. 8-bit bidirectional I/O port with alternative functions. Every port pin except P1.6
and P1.7 (I2C-bus pins) can be used as open-drain, standard port, high-impedance input
or push-pull output, according to Section 6.2. Port 1 also serves the alternative functions
INT2 to INT9 interrupts, Timer 2 external input and Timer 2 compare output, external
clock output CLK and I2C-bus clock and I2C-bus data in/outputs.
P1.1/INT3/T2EX
41
P1.2/INT4/
T2COMP
42
P1.3/INT5
43
P1.4/INT6/CLK
44
P1.5/INT7
1
P1.6/INT8/SCL
2
P1.7/INT9/SDA
3
P2.0/A8
18
Port 2. 8-bit bidirectional I/O port with alternative functions. Every port pin can be used
as open-drain, standard port, high-impedance input or push-pull output, according to
Section 6.2. Port 2 emits the high order address byte during accesses to external
memory that use 16-bit addresses (MOVX @ DPTR). In this application it uses the
strong internal pull-ups when emitting logic 1's. During accesses to external memory that
use 8-bit addresses (MOVX @ Ri), Port 2 emits the contents of the P2 Special Function
Register.
P2.1/A9
19
P2.2/A10
20
P2.3/A11
21
P2.4/A12
22
P2.5/A13
23
P2.6/A14
24
P2.7/A15
25
P3.0/RXD/data
5
Port 3. 8-bit bidirectional I/O port with alternative functions. Every port pin can be used
as open-drain, standard port, high-impedance input or push-pull output, according to
Section 6.2. RXD/data is the serial port receiver data input (asynchronous) or data I/O
(synchronous). TXD/clock is the serial port transmitter data output (asynchronous) or
clock output (synchronous). INT0 and INT1 are external interrupt lines. T0 and T1 are
external inputs for Timers 0 and 1 respectively. WR is the external memory write strobe
and RD is the external memory read strobe.
P3.1/TXD/clock
7
P3.2/INT0
8
P3.3/INT1
9
P3.4/T0
10
P3.5/T1
11
P3.6/WR
12
P3.7/RD
13
SYMBOL
PIN
DESCRIPTION
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