参数资料
| 型号： | LTC1297BCN8 |
| 厂商： | Linear Technology |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC DATA ACQ SYSTEM 12BIT 8-DIP |
| 标准包装： | 50 |
| 类型： | 数据采集系统（DAS） |
| 分辨率（位）： | 12 b |
| 采样率（每秒）： | 60k |
| 数据接口： | 串行，并联 |
| 电压电源： | 单电源 |
| 电源电压： | 5V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
10
LTC1292/LTC1297
12927fb
the MPU. The data is right-justified in the two memory
locations (Figure 2). This was made possible by delaying
the falling edge of CS till after the second CLK. ANDing the
first byte with 0FHEX clears the four most significant bits.
This operation was not included in the code. It can be
inserted in the data gathering loop or outside the loop
when the data is processed.
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
LABEL MNEMONIC
OPERAND
COMMENTS
LDAA
#$50
CONFIGURATION DATA FOR SPCR
STAA
$1028
LOAD DATA INTO SPCR ($1028)
LDAA
#$1B
CONFIG. DATA FOR PORT D DDR
STAA
$1009
LOAD DATA INTO PORT D DDR
LDAA
#$00
LOAD DUMMY DIN WORD INTO
ACC A
STAA
$50
LOAD DUMMY DIN DATA INTO $50
LOOP
LDX
#$1000
LOAD INDEX REGISTER X WITH
$1000
LDAB
#$00
LOAD ACC B WITH $00
LDAA
$50
LOAD DUMMY DIN INTO ACC A
FROM $50
STAA
$102A
LOAD DUMMY DIN INTO SPI,
START SCK
NOP
DELAY CS FALL TIME TO RIGHT
JUSTIFY DATA
MC68HC11 CODE for LTC1292 Interface
STAB
$08, X
D0 GOES LOW (CS GOES LOW)
NOP
6 NOPS FOR TIMING
LDAA
$1029
CHECK SPI STATUS REG
LDAA
$102A
LOAD LTC1292 MSBs INTO ACC A
STAA
$61
STORE MSBs IN $61
STAA
$102A
LOAD DUMMY DIN INTO SPI,
START SCK
NOPS
6 NOPS FOR TIMING
BSET
$08,X,$01
D0 GOES HIGH (CS GOES HIGH)
LDAA
$1029
CHECK SPI STATUS REGISTER
LDAA
$102A
LOAD LTC1292 LSBs IN ACC
STAA
$62
STORE LSBs IN $62
JMP
LOOP
START NEXT CONVERSION
LABEL MNEMONIC
OPERAND
COMMENTS
BYTE 2
B3
B7
B6
B5
B4
B2
B0
B1
B10
B9
B8
B11
O
OO
BYTE 1
DOUT FROM LTC1292 STORED ON MC68HC11 RAM
LOCATION #61
LOCATION #62
MSB
LTC1292/7 F02
CLK
DOUT
LTC1292
CS
ANALOG
INPUTS
DO
SCK
MISO
MC68HC11
Figure 2. Hardware and Software Interface to Motorola MC68HC11 Microcontroller
Figure 3. Data Exchange Between LTC1297 and MC68HC11
For the LTC1297 (Figure 3) a delay must be introduced to
accommodate the setup time, tsuCS, before the dummy
DIN word is sent to the data register. The first 8-bit transfer
clocks B11 through B6 of the A/D conversion result into
the processor. The second 8-bit transfer clocks the re-
maining bits B5 through B0 into the MPU. Note B1 and B2
from the LSB-first data word have also been clocked in.
CLK
CS
DOUT
MPU
RECEIVED WORD
LTC1292/7 F03
B7
B6
B5
B4
B3
B2
B1
B0
B1
B8
B9
B10
B11
BYTE 2
B8
B7
B6
B9
B10
0
?
B11
1ST TRANSFER
2ND TRANSFER
BYTE 1
B0
B1
B2
B1
B2
B4
B5
B3
B2
B3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1297BCN8#PBF | 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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 |
| LTC1297CCJ8 | 制造商:Linear Technology 功能描述:ADC Single SAR 50ksps 12-bit Serial 8-Pin CDIP |
| LTC1297CCN8 | 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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 |
| LTC1297CCN8#PBF | 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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 |
| LTC1297CCN8PBF | 制造商:Linear Technology 功能描述:LTC1297CCN8PBF |
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