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參數(shù)資料
| 型號： | LTC1197LC |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 10-Bit, 500ksps ADCs in MSOP with Auto Shutdown |
| 中文描述： | 10位，500ksps，采用MSOP與ADC的自動關(guān)機(jī) |
| 文件頁數(shù)： | 21/28頁 |
| 文件大?。?/td> | 446K |
| 代理商： | LTC1197LC |
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21
LTC1197/LTC1197L
LTC1199/LTC1199L
U
S
A
O
PPLICATI
TYPICAL
MICROPROCESSOR INTERFACES
The LTC1197/LTC1197L/LTC1199/LTC1199L can inter-
face directly (without external hardware to most popular
microprocessor (MPU) synchronous serial formats (see
Table 1). If an MPU without a dedicated serial port is used,
then three or four of the MPU’s parallel port lines can be
programmed to form the serial link. Included here is one
serial interface example and one example showing a
parallel port programmed to form the serial interface.
Motorola SPI (MC68HC05C4, MC68HC11)
The MC68HC05C4 has been chosen as an example of an
MPU with a dedicated serial port. This MPU transfers data
MSB-first and in 8-bit increments. With two 8-bit trans-
fers, the A/D result is read into the MPU. The first 8-bit
transfer sends the D
IN
word to the LTC1199 and clocks the
two ADC MSBs (B9 and B8) into the MPU. The second 8-
bit transfer clocks the next 8 bits, B7 through B0, of the
ADC into the MPU.
ANDing the first MPU received byte with 03Hex clears the
six MSBs. Notice how the position of the start bit in the D
IN
word is used to position the A/D result so that it is right-
justified in two memory locations.
Table 1. Microprocessor with Hardware Serial Interfaces
Compatible with the LTC1197/LTC1197L/LTC1199/LTC1199L
PART NUMBER
Motorola
MC6805S2,S3
MC68HC11
MC68HC05
RCA
CDP68HC05
Hitachi
HD6301
HD6303
HD6305
HD63701
HD63705
HD64180
National Semiconductor
COP400 Family
COP800 Family
NSC8050U
HPC16000 Family
Texas Instruments
TMS7000 Family
TMS320 Family
Microchip Technology
PIC16C60 Family
PIC16C70 Family
TYPE OF INTERFACE
SPI
SPI
SPI
SPI
SCI Synchronous
SCI Synchronous
SCI Synchronous
SCI Synchronous
SCI Synchronous
CSI/O
MICROWIRE
TM
MICROWIRE/PLUS
TM
MICROWIRE/PLUS
MICROWIRE/PLUS
Serial Port
Serial Port
SPI, SCI Synchronous
SPI, SCI Synchronous
MICROWIRE and MICROWIRE/PLUS are trademarks of
National Semiconductor Corp.
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