參數(shù)資料
型號(hào): ADUC848BCPZ62-5
廠商: Analog Devices Inc
文件頁(yè)數(shù): 64/108頁(yè)
文件大?。?/td> 0K
描述: IC MCU FLASH W/16BIT ADC 56LFCSP
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: 62KB(62K x 8)
程序存儲(chǔ)器類(lèi)型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 2.25K x 8
電壓 - 電源 (Vcc/Vdd): 4.75 V ~ 5.25 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(pán),CSP
包裝: 托盤(pán)
Data Sheet
ADuC845/ADuC847/ADuC848
Rev. C | Page 59 of 108
Mode 5 (Dual 8-Bit PWM)
In Mode 5, the duty cycle and the resolution of the PWM outputs
are individually programmable. The maximum resolution of the
PWM output is 8 bits.
P2.6
P2.5
PWM COUNTERS
PWM1H
0
PWM1L
PWM0H
PWM0L
04741-043
Figure 43. PWM Mode 5
Mode 6 (Dual RZ 16-Bit Σ- DAC)
Mode 6 provides a high speed PWM output similar to that of a
Σ-Δ DAC. Mode 6 operates very similarly to Mode 4; however,
the key difference is that Mode 6 provides return to zero (RZ)
Σ-Δ DAC output. Mode 4 provides non-return-to-zero Σ-Δ
DAC outputs. RZ mode ensures that any difference in the rise
and fall times does not affect the Σ-Δ DAC INL. However, RZ
mode halves the dynamic range of the Σ-Δ DAC outputs from
0 V to AVDD down to 0 V to AVDD/2. For best results, this
mode should be used with a PWM clock divider of 4.
If PWM1H is set to 4010H (slightly above one-quarter of FS),
typically P2.6 is low for three full clocks (3 × 80 ns), high for
one-half a clock (40 ns), and then low again for one-half a clock
(40 ns) before repeating itself. Over every 65536 clocks, the
PWM compromises for the fact that the output should be
slightly above one-quarter of full scale by leaving the output
high for two half clocks in four every so often.
For faster DAC outputs (at lower resolution), write 0s to the
LSBs that are not required with a 1 in the LSB position. If, for
example, only 12-bit performance is required, write 0001 to the
4 LSBs. This means that a 12-bit accurate Σ-Δ DAC output can
occur at 3 kHz. Similarly, writing 00000001 to the 8 LSBs gives
an 8-bit accurate Σ-Δ DAC output at 49 kHz.
The output resolution is set by the PWM1L and PWM1H SFRs
for the P2.5 and P2.6 outputs, respectively. PWM0L and PWM0H
set the duty cycles of the PWM outputs at P2.5 and P2.6,
respectively. Both PWMs have the same clock source and clock
divider.
3.146MHz
16-BIT
318
s
0
16-BIT
CARRY OUT AT P2.5
CARRY OUT AT P2.6
PWM0H/L = C000H
PWM1H/L = 4000H
0
1
0
LATCH
0
1
0
318
s
0, 3/4, 1/2, 1/4, 0
04741-044
Figure 44. PWM Mode 6
Mode 7
In Mode 7, the PWM is disabled, allowing P2.5 and P2.6 to be
used as normal.
相關(guān)PDF資料
PDF描述
MC74LVX4053DR2G IC MUX/DEMUX TRIPLE 2X1 16SOIC
MC74LVXT4053DR2G IC MUX/DEMUX TRIPLE 2X1 16SOIC
ADUC848BSZ62-3 IC MCU FLASH W/16BIT ADC 52MQFP
MC74LVXT4052DR2G IC MUX/DEMUX DUAL 4X1 16SOIC
MC74LVX4051DR2G IC MUX/DEMUX 8X1 16SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC848BCPZ8-3 功能描述:IC MCU FLASH W/16BIT ADC 56-CSP RoHS:是 類(lèi)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(cè)/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(lèi)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(chēng):269-4116Z8F0413SH005EG-ND
ADUC848BCPZ8-5 功能描述:IC MCU FLASH W/16BIT ADC 56-CSP RoHS:是 類(lèi)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(cè)/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(lèi)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(chēng):269-4116Z8F0413SH005EG-ND
ADUC848BS32-3 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC848BS32-5 制造商:Analog Devices 功能描述:IC MICROCONTROLLER
ADUC848BS62-3 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 3.3V 52MQFP - Bulk 制造商:Analog Devices 功能描述: