參數(shù)資料
型號: M38039GCHKP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-64
文件頁數(shù): 65/103頁
文件大?。?/td> 1412K
代理商: M38039GCHKP
REJ03B0166-0113 Rev.1.13
Aug 21, 2009
Page 64 of 100
3803 Group (Spec.H QzROM version)
D/A CONVERTER
The 3803 group (Spec.H QzROM version) has two internal D/A
converters (DA1 and DA2) with 8-bit resolution.
The D/A conversion is performed by setting the value in each
DAi conversion register (i = 1 or 2). The result of D/A
conversion is output from the DA1 or DA2 pin by setting the DAi
output enable bit (i = 1 or 2) to “1”.
When using the D/A converter, the corresponding port direction
register bit (P30/DA1 or P31/DA2) must be set to “0” (input
status).
The output analog voltage V is determined by the value n
(decimal notation) in the DAi conversion register (i = 1 or 2) as
follows:
V = VREF× n/256 (n = 0 to 255)
Where VREF is the reference voltage.
At reset, the DAi conversion register (i = 1 or 2) is cleared to
“0016”, and the DAi output enable bit (i = 1 or 2) is cleared to
“0”, an d the P30 /DA 1 and P 31 /DA 2 pi ns b eco me hi gh
impedance.
The DA output does not have buffers. Accordingly, connect an
external buffer when driving a low-impedance load.
Fig 57. Block diagram of D/A converter
Fig 58. Equivalent connection circuit of D/A converter (DA1)
DA1 conversion register (8)
DA1 output enable bit
P30/DA1
Da
ta
b
u
s
R-2R resistor ladder
DA2 conversion register (8)
DA2 output enable bit
P31/DA2
R-2R resistor ladder
DA1 output enable bit
AVSS
VREF
R
2R
R
2R
LSB
“1”
“0”
MSB
DA1 conversion register
P30/DA1
“0”
“1”
相關(guān)PDF資料
PDF描述
M38039G6HKP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
M38039G6HSP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PDIP64
M38039G6HHP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
M38039GCH-XXXHP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
M38039G8H-XXXKP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38039GCHKP#U0 功能描述:IC 740/3803 MCU QZROM 64LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI,I²C,UART/USART 外圍設(shè)備:POR,PWM,WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC(J 形引線) 包裝:帶卷 (TR)
M38039GCHSP#U0 功能描述:IC 740/3803 MCU QZROM 64DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI,I²C,UART/USART 外圍設(shè)備:POR,PWM,WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC(J 形引線) 包裝:帶卷 (TR)
M38049FFFP#U0 制造商:Renesas Electronics Corporation 功能描述:
M38049FFLHP#U0 制造商:Renesas Electronics Corporation 功能描述:
M38049RLSS 功能描述:DEV EMULATOR CHIP RAM 2KB 64SDIP RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 內(nèi)電路編程器、仿真器以及調(diào)試器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 19/Jul/2010 標(biāo)準(zhǔn)包裝:1 系列:* 類型:* 適用于相關(guān)產(chǎn)品:* 所含物品:*