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參數(shù)資料
| 型號： | P87C552 |
| 廠商： | 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） |
| 文件頁數(shù)： | 25/74頁 |
| 文件大?。?/td> | 368K |
| 代理商： | P87C552 |
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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
25
(MSB)
(LSB)
AADR2 AADR1
AADR0
7
6
5
4
3
2
1
0
ADCON (C5H)
ADCON.7
ADCON.6
ADCON.5
ADC.1
ADC.0
ADEX
Bit 1 of ADC result
Bit 0 of ADC result
Enable external start of conversion by STADC
0 = Conversion can be started by software only (by setting ADCS)
1 = Conversion can be started by software or externally (by a rising edge on STADC)
ADC interrupt flag: this flag is set when an A/D conversion result is ready to be read. An interrupt is
invoked if it is enabled. The flag may be cleared by the interrupt service routine. While this flag is set,
the ADC cannot start a new conversion. ADCI cannot be set by software.
ADC start and status: setting this bit starts an A/D conversion. It may be set by software or by the
external signal STADC. The ADC logic ensures that this signal is HIGH while the ADC is busy. On
completion of the conversion, ADCS is reset immediately after the interrupt flag has been set. ADCS
cannot be reset by software. A new conversion may not be started while either ADCS or ADCI is high.
Bit
Symbol
Function
ADEX
ADCI ADCS
ADC.1
ADC.0
ADCON.4
ADCI
ADCON.3
ADCS
ADCI
0
0
1
1
ADCS
0
1
0
1
ADC Status
ADC not busy; a conversion can be started
ADC busy; start of a new conversion is blocked
Conversion completed; start of a new conversion requires ADCI=0
Conversion completed; start of a new conversion requires ADCI=0
ADCON.2
ADCON.1
ADCON.0
AADR2
AADR1
AADR0
Analogue input select: this binary coded address selects one of the
eight analogue port bits of P5 to be input to the converter. It can only
be changed when ADCI and ADCS are both LOW.
AADR2
0
0
0
0
1
1
1
1
AADR1
0
0
1
1
0
0
1
1
Selected Analog Channel
ADC0 (P5.0)
ADC1 (P5.1)
ADC2 (P5.2)
ADC3 (P5.3)
ADC4 (P5.4)
ADC5 (P5.5)
ADC6 (P5.6)
ADC7 (P5.7)
AADR0
0
1
0
1
0
1
0
1
If ADCI is cleared by software while ADCS is set at the same time, a new A/D conversion with the
same channel number may be started.
But it is recommended to reset ADCI
before
ADCS is set.
SU00960
Reset Value = xx00 0000B
Figure 22. ADC Control Register (ADCON)
相關(guān)PDF資料 |
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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P87C552OTP | 制造商:PHILIPS 制造商全稱: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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)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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