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參數(shù)資料
| 型號： | AD7819 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 8-Bit Sampling ADC(200kSPS,8位采樣A/D轉(zhuǎn)換器) |
| 中文描述： | 8位采樣ADC（速度高達200ksps，8位采樣的A / D轉(zhuǎn)換器） |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 231K |
| 代理商： | AD7819 |
AD7819
–10–
REV. 0
MICROPROCESSOR INTERFACING
The parallel port on the AD7819 allows the device to be inter-
faced to a range of many different microcontrollers. This section
explains how to interface the AD7819 with some of the more
common microcontroller parallel interface protocols.
AD7819 to 8051
Figure 16 shows a parallel interface between the AD7819 and
the 8051 microcontroller. The BUSY signal on the AD7819 pro-
vides an interrupt request to the 8051 when a conversion begins.
Port 0 of the 8051 may serve as an input or output port, or as in
this case when used together, may be used as a bidirectional
low-order address and data bus. The address latch enable out-
put of the 8051 is used to latch the low byte of the address dur-
ing accesses to the device, while the high-order address byte is
supplied from Port 2. Port 2 latches remain stable when the
AD7819 is addressed, as they do not have to be turned around
(set to 1) for data input as is the case for Port 0.
AD7819
*
8051*
AD0–AD7
ALE
A8–A15
RD
INT
LATCH
DECODER
DB0–DB7
CS
RD
BUSY
*
ADDITIONAL PINS OMITTED FOR CLARITY
Figure 16. Interfacing to the 8051
AD7819 to PIC16C6x/7x
Figure 17 shows a parallel interface between the AD7819 and the
PIC16C64/65/74. The BUSY signal on the AD7819 provides an
interrupt request to the microcontroller when a conversion be-
gins. Of the PIC16C6x/7x range of microcontrollers, only the
PIC16C64/65/74 can provide the option of a parallel slave
port. Port D of the microcontroller will operate as an 8-bit
wide parallel slave port when control bit PSPMODE in the
TRISE register is set. Setting PSPMODE enables the port
pin RE0 to be the
RD
output and RE2 to be the
CS
output.
For this functionality, the corresponding data direction bits
of the TRISE register must be configured as outputs (reset to
0). See user PIC16/17 Microcontroller User Manual.
PIC16C6x/7x*
PSP0–PSP7
RD
INT
*
ADDITIONAL PINS OMITTED FOR CLARITY
CS
AD7819
*
DB0–DB7
CS
RD
BUSY
Figure 17. Interfacing to the PIC16C6x/7x
AD7819 to ADSP-21xx
Figure 18 shows a parallel interface between the AD7819 and
the ADSP-21xx series of DSPs. As before, the BUSY signal on
the AD7819 provides an interrupt request to the DSP when a
conversion begins.
*
ADDITIONAL PINS OMITTED FOR CLARITY
ADDRESS
DECODE
LOGIC
EN
AD7819
*
DB0–DB7
CS
RD
BUSY
ADSP-21xx*
D0–D7
DMS
A13–A0
RD
IRQ
Figure 18. Interfacing to the ADSP-21xx
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| AD7819YN | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 8-bit Parallel 16-Pin PDIP 制造商:Analog Devices 功能描述:IC 8BIT ADC 7819 DIP16 |
| AD7819YNZ | 功能描述:IC ADC 8BIT SAMPLING PAR 16-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7819YR | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 8-bit Parallel 16-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:8 BIT,SINGLE,PARALLEL ADC I.C. - Bulk 制造商:Analog Devices 功能描述:IC SEMICONDUTOR ((NS)) |
| AD7819YR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 8-bit Parallel 16-Pin SOIC N T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 200KSPS 8BIT PARALLEL 16SOIC N - Tape and Reel |
| AD7819YRREEL7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SAMPLING AD CONVERTER |
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