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参数资料
型号： P87C552
厂商： NXP Semiconductors N.V.
英文描述： 80C51 8-bit microcontroller(80C51八位微控制器)
中文描述： 80C51的8位微控制器（80C51的八位微控制器）
文件页数： 5/74页
文件大小： 368K
代理商： P87C552
Philips Semiconductors
Preliminary specification
P87C552
80C51 8-bit microcontroller
8K/256 OTP, 8 channel 10 bit A/D, I
2
C, PWM,
capture/compare, high I/O, low voltage (2.7V–5.5V), low power
1999 Mar 30
5
PIN DESCRIPTION
PIN NO.
MNEMONIC
PLCC
QFP
TYPE
NAME AND FUNCTION
V
DD
2
72
I
Digital Power Supply:
Positive voltage power supply pin during normal operation, idle and
power-down mode.
STADC
3
74
I
Start ADC Operation:
Input starting analog to digital conversion (ADC operation can also
be started by software).
PWM0
4
75
O
Pulse Width Modulation:
Output 0.
PWM1
5
76
O
Pulse Width Modulation:
Output 1.
EW
6
77
I
Enable Watchdog Timer:
Enable for T3 watchdog timer and disable power-down mode.
P0.0-P0.7
57-50
58-51
I/O
Port 0:
Port 0 is an 8-bit open-drain bidirectional I/O port. Port 0 pins that have 1s written
to them float and can be used as high-impedance inputs. Port 0 is also the multiplexed
low-order address and data bus during accesses to external program and data memory. In
this application it uses strong internal pull-ups when emitting 1s. Port 0 is also used to input
the code byte during programming and to output the code byte during verification.
P1.0-P1.7
16-23
16-21
22-23
16-19
20
21
22
23
10-17
10-15
16-17
10-13
14
15
16
17
I/O
I/O
I/O
I
I
I
I/O
I/O
Port 1:
8-bit I/O port. Alternate functions include:
(P1.0-P1.5):
Programmable I/O port pins.
(P1.6, P1.7):
Open drain port pins.
CT0I-CT3I (P1.0-P1.3):
Capture timer input signals for timer T2.
T2 (P1.4):
T2 event input.
RT2 (P1.5):
T2 timer reset signal. Rising edge triggered.
SCL (P1.6):
Serial port clock line I
2
C-bus.
SDA (P1.7):
Serial port data line I
2
C-bus.
Port 1 has four modes selected on a per bit basis by writing to the P1M1 and P1M2
registers as follows:
P1M1.x
P1M2.x
Mode Description
0
0
Pseudo–bidirectional (standard c51 configuration; default)
0
1
Push-Pull
1
0
High impedance
1
1
Open drain
Port 1 is also used to input the lower order address byte during EPROM programming and
verification. A0 is on P1.0, etc.
P2.0-P2.7
39-46
38-42,
45-47
I/O
Port 2:
8-bit programmable I/O port.
Alternate function: High-order address byte for external memory (A08-A15). Port 2 is also
used to input the upper order address during EPROM programming and verification. A8 is
on P2.0, A9 on P2.1, through A12 on P2.4.
Port 2 has four output modes selected on a per bit basis by writing to the P2M1 and P2M2
registers as follows:
P2M1.x
P2M2.x
Mode Description
0
0
Pseudo–bidirectional (standard c51 configuration; default)
0
1
Push-Pull
1
0
High impedance
1
1
Open drain
P3.0-P3.7
24-31
18-20,
23-27
18
19
20
23
24
25
26
27
I/O
Port 3:
8-bit programmable I/O port. Alternate functions include:
24
25
26
27
28
29
30
31
RxD(P3.0):
Serial input port.
TxD (P3.1):
Serial output port.
INT0 (P3.2):
External interrupt.
INT1 (P3.3):
External interrupt.
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.
Port 3 has four modes selected on a per bit basis by writing to the P3M1 and P3M2
registers as follows:
P3M1.x
P3M2.x
Mode Description
0
0
Pseudo–bidirectional (standard c51 configuration; default)
0
1
Push–Pull
1
0
High impedance
1
1
Open drain
相关PDF资料
PDF描述
P87C554SBBD 80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
P83C554SBBD 80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
P80C554SBBD 80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
P87C554SFBD 80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
P83C554SFBD 80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
相关代理商/技术参数
参数描述
P87C552OTP 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller
P87C552SBAA 制造商:NXP Semiconductors 功能描述:87C 16MHz 制造商:NXP Semiconductors 功能描述:87C 16MHz Bulk 制造商:NXP Semiconductors 功能描述:IC 8-BIT MCU 8K OTP PLCC68 制造商:NXP Semiconductors 功能描述:MCU 8-Bit 87C 80C51 CISC 8KB EPROM 3.3V/5V 68-Pin PLCC
P87C552SBAA,512 功能描述:8位微控制器 -MCU 80C51 8K/256 OTP RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
P87C552SBAA512 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 16MHZ LCC-68
P87C552SFAA 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU SMD 87C552 PLCC68
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