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| 型号： | LTC1093CSW#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/32页 |
| 文件大小： | 0K |
| 描述： | IC DATA ACQ SYS 10BIT 6CH 16SOIC |
| 标准包装： | 47 |
| 类型： | 数据采集系统（DAS），ADC |
| 分辨率（位）： | 10 b |
| 数据接口： | 串行 |
| 电压电源： | 双 ± |
| 电源电压： | ±5V，4.5V，10V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
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18
LTC1091/LTC1092
LTC1093/LTC1094
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Hardware and Software Interface to
Motorola MC68HC05C4 Processor
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 transfers,
the A/D result is read into the MPU. The first 8-bit transfer
sends the DIN word to the LTC1091 and clocks B9 and B8
of the A/D conversion result into the processor. The
second 8-bit transfer clocks the remaining bits, B7 through
B0, into the MPU.
ANDing the first MPU received byte with 03 Hex clears the
six most significant bits. Notice how the position of the
start bit in the first MPU transmit word is used to position
the A/D result right justified in two memory locations.
X = DON’T CARE
1091/2/3/4 AI15
CLK
CS
DOUT
MPU RECEIVED
WORD
MPU TRANSMIT
WORD
START
BIT
BYTE 1
DIN
START
MSBF
X
B9
?
0
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
SGL/
DIFF
ODD/
SIGN
SGL/
DIFF
ODD/
SIGN
0
1
BYTE 2 (DUMMY)
X
BYTE 1
1ST TRANSFER
?
BYTE 2
B5
B4
B3
B2
B1
B0
B7
B6
DON’T CARE
2ND TRANSFER
Data Exchange Between LTC1091 and MC68HC05C4
1091-4 AI16
BYTE 1
0
B9
B8
DOUT from LTC1091 Stored in MC68HC05C4 RAM
MSB
LOCATION A
B7
B6
B5
B4
B3
B2
B1
B0
LSB
LOCATION A + 1
BYTE 2
LTC1091
CS
CLK
DIN
DOUT
ANALOG
INPUTS
CO
SCK
MOSI
MISO
MC68HC05C4
LABEL
MNEMONIC
COMMENTS
START
BCLRn
Bit 0 Port C Goes Low (CS Goes Low)
LDA
Load LTC1090 DIN Word into Acc
STA
Load LTC1090 DIN Word into SPI from Acc
Transfer Begins
TST
Test Status of SPIF
BPL
Loop to Previous Instruction If Not Done
with Transfer
LDA
Load contents of SPI Data Register into
Acc (DOUT MSBs)
STA
Start Next SPI Cycle
AND
Clear 6 MSBs of First DOUT Word
STA
Store in Memory Location A (MSBs)
TST
Test Status of SPIF
BPL
Loop to Previous Instruction If Not Done
with Transfer
BSETn
Set B0 of Port C (CS Goes High)
LDA
Load contents of SPI Data Register into
Acc (DOUT LSBs)
STA
Store in Memory location A + 1 (LSBs)
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| LTC1094ACN | 功能描述:IC DATA ACQ SYS 10BIT 8CH 20-DIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| LTC1094ACN#PBF | 功能描述:IC DATA ACQ SYS 10BIT 8CH 20-DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
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