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| 型號： | ADUC848BCPZ8-3 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 58/108頁 |
| 文件大小： | 0K |
| 描述： | IC MCU FLASH W/16BIT ADC 56-CSP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | MicroConverter® ADuC8xx |
| 核心處理器： | 8052 |
| 芯體尺寸： | 8-位 |
| 速度： | 12.58MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | POR，PSM，PWM，溫度傳感器，WDT |
| 輸入/輸出數(shù)： | 34 |
| 程序存儲(chǔ)器容量： | 8KB（8K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大?。?/td> | 4K x 8 |
| RAM 容量： | 2.25K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 10x16b; D/A 1x12b，2x16b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 56-VFQFN 裸露焊盤，CSP |
| 包裝： | 托盤 |
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Data Sheet
ADuC845/ADuC847/ADuC848
Rev. C | Page 53 of 108
DAC CIRCUIT INFORMATION
The ADuC845/ADuC847/ADuC848 incorporate a 12-bit,
voltage output DAC on-chip. It has a rail-to-rail voltage output
buffer capable of driving 10 k/100 pF, and has two selectable
ranges, 0 V to VREF and 0 V to AVDD. It can operate in 12-bit or
8-bit mode. The DAC has a control register, DACCON, and two
data registers, DACH/L. The DAC output can be programmed
to appear at Pin 14 (DAC) or Pin 13 (AINCOM).
In 12-bit mode, the DAC voltage output is updated as soon as
the DACL data SFR is written; therefore, the DAC data registers
should be updated as DACH first, followed by DACL. The 12-
bit DAC data should be written into DACH/L right-justified
such that DACL contains the lower 8 bits, and the lower nibble
of DACH contains the upper 4 bits.
DACCON Control Register
SFR Address:
FDH
Power-On Default:
00H
Bit Addressable:
No
Table 33. DACCON—DAC Configuration Commands
Bit No.
Name
Description
7
–––
Not Implemented. Write Don’t Care.
6
–––
Not Implemented. Write Don’t Care.
5
–––
Not Implemented. Write Don’t Care.
4
DACPIN
DAC Output Pin Select.
Set to 1 by the user to direct the DAC output to Pin 13 (AINCOM).
Cleared to 0 by the user to direct the DAC output to Pin 14 (DAC).
3
DAC8
DAC 8-Bit Mode Bit.
Set to 1 by the user to enable 8-bit DAC operation. In this mode, the 8 bits in DACL SFR are routed to the 8 MSBs
of the DAC, and the 4 LSBs of the DAC are set to 0.
Cleared to 0 by the user to enable 12-bit DAC operation. In this mode, the 8 LSBs of the result are routed to
DACL, and the upper 4 MSB bits are routed to the lower 4 bits of DACH.
2
DACRN
DAC Output Range Bit.
Set to 1 by the user to configure the DAC range of 0 V to AVDD.
Cleared to 0 by the user to configure the DAC range of 0 V to 2.5 V (VREF).
1
DACCLR
DAC Clear Bit.
Set to 1 by the user to enable normal DAC operation.
Cleared to 0 by the user to reset the DAC data registers DACL/H to 0.
0
DACEN
DAC Enable Bit.
Set to 1 by the user to enable normal DAC operation.
Cleared to 0 by the user to power down the DAC.
DACH/DACL Data Registers
These DAC data registers are written to by the user to update
the DAC output.
SFR Address:
DACL (DAC data low byte)—FBH
DACH (DAC data high byte)—FCH
Power-On Default:
00H (both registers)
Bit Addressable:
No (both registers)
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| ADUC848BCPZ8-5 | 功能描述:IC MCU FLASH W/16BIT ADC 56-CSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，LED，POR，PWM，WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:4KB（4K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
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