參數(shù)資料
型號： P87C591
廠商： NXP Semiconductors N.V.
英文描述： Single-chip 8-bit microcontroller with CAN controller
中文描述： 單芯片8 - CAN控制器位微控制器
文件頁數(shù)： 126/161頁
文件大小： 588K
代理商： P87C591
1999 Aug 19
126
Philips Semiconductors
Objective Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
otherwise the bit being tested is cleared. This process is
repeated until all ten bits have been tested, at which stage
the result of the conversion is held in the successive
approximation register. Figure 48 shows a conversion flow
chart. The bit pointer identifies the bit under test. The
conversion takes four machine cycles per bit.
The end of the 10-bit conversion is flagged by control bit
ADCON.4 (ADCI). The upper 8 bits of the result are held in
Special Function Register ADCH, and the two remaining
bits are held in ADCON.7 (ADC.1) and ADCON.6 (ADC.0).
The user may ignore the two least significant bits in
ADCON and use the ADC as an 8-bit converter (8 upper
bits in ADCH). In any event, the total actual conversion
time is 50 machine cycles for the P8xC591. ADCI will be
set and the ADCS status flag will be reset 50 (or 24) cycles
after the command flip-flop (ADCS) is set.
Control bits ADCON.0, ADCON.1, and ADCON.2 are used
to control an analog multiplexer which selects one of six
analog channels (see Section 20.3.1). An ADC conversion
in progress is unaffected by a new software ADC start. The
result of a completed conversion remains unaffected
provided ADCI = logic 1; a new ADC conversion already in
progress is aborted when the Idle or Power-down mode is
entered. The result of a completed conversion (ADCI =
logic 1) remains unaffected when entering the Idle mode.
Fig.49 Successive Approximation ADC.
handbook, full pagewidth
MHI051
SUCCESSIVE
APPROXIMATION
REGISTER
DAC
SUCCESSIVE
APPROXIMATION
CONTROL LOGIC
START
STOP
Vin
VDAC
full scale
t/tau
VDAC
1/2
3/4
7/8
15/16
29/32
59/64
1
1
0
2
3
4
5
6
Vin
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P87C591VFA/00,512 功能描述:8位微控制器 -MCU 80C51 16K OTP/CAN 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 安裝風格:SMD/SMT
P87C654X2BBD,157 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK I2C LQFP 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 安裝風格:SMD/SMT
P87C654X2FA 制造商:NXP Semiconductors 功能描述:P87C654X2FA 8bit microcontroller,33MHz
P87C654X2FA,529 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK 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 安裝風格:SMD/SMT
P87C654X2FA-S 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK I2C PLCC 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 安裝風格:SMD/SMT
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