參數(shù)資料
型號(hào)： W78E378
廠商： WINBOND ELECTRONICS CORP
元件分類： 微控制器/微處理器
英文描述： MONITOR MICROCONTROLLER
中文描述： 8-BIT, FLASH, 10 MHz, MICROCONTROLLER, PDIP32
封裝： 0.600 INCH, PLASTIC, DIP-32
文件頁(yè)數(shù)： 25/38頁(yè)
文件大?。?/td> 396K
代理商： W78E378
Preliminary W78E378/W78C378/W78C374
Publication Release Date: December 1999
- 25 - Revision A1
Parabola Interrupt Generator
The parabola interrupt generator is a 13-bit auto-reload timer, which generates an interrupt to the
CPU periodically for software to load the parabola waveform data to the dynamic DACs
(DAC8
DAC10). The software should calculate the value of the PARAH and PARAL registers by:
(Vcount
×
16)
÷
segment number. The segment number is the number of integration segments
between two Vsync pulses. The interrupt interval is programmable:
Time base = 1/Fosc
Programmable interrupt period = Time base
×
(PARAH
×
256 + PARAL + 1)
Maximum period = Time base
×
8192
Note: Zero value in [PARAH, PARAL] is inhibited.
A-to-D Converter
(ref. Application Note in Appendix A.)
One 4-bit Analog-to-Digital Converter.
Conversion time = (6/Fosc)
×
128 sec.
7 channels selected by an analog multiplexer
(ADCS2, ADCS1, ADCS0) (0, 0, 0) (0, 0, 1) (0, 1, 0)
(0, 1, 1) (1, 0, 0) (1, 0, 1) (1, 1, 0)
Selected Channel
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
The conversion of the ADC is started by setting bit ADCSTRT in CTRL1 by software. When the
conversion is completed, the ADCSTRT bit is cleared by hardware automatically, and the ADCINT bit
in INTVECT is set by hardware at the same time if MADCINT in INTMSK is set.
PWM DACs
Eight 8-bit Static DACs: DAC0 DAC7
The PWM frequency F
PWM
= Fosc ÷ 255
The duty cycle of the PWM output = Register value ÷ 255
The DC voltage after the low pass filter = V
CC
×
duty cycle
Static DAC application circuit:
Static DAC
Low-pass filter
V
OUTPUT
R
C
T = RC
V
OUTPUT
= V
CC
n/255, if T >> T
PWM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W78E378A10PL 功能描述:IC MCU 8-BIT 32K FLASH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W78 標(biāo)準(zhǔn)包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO，I²C，LIN，UART/USART 外圍設(shè)備:DMA，LVD，POR，PWM，WDT 輸入/輸出數(shù):27 程序存儲(chǔ)器容量:16KB（16K 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 ~ 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:38-SSOP 包裝:托盤
W78E378P 制造商:WINBOND 制造商全稱:Winbond 功能描述:MONITOR MICROCONTROLLER
W78E51-16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
W78E51-24 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
W78E51-33 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
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