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參數(shù)資料
| 型號： | LTC1297BCN8 |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DATA ACQ SYSTEM 12BIT 8-DIP |
| 標準包裝： | 50 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 60k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 電壓電源： | 單電源 |
| 電源電壓： | 5V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 8-PDIP |
| 包裝： | 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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| LTC1297BCN8#PBF | 功能描述:IC DATA ACQ SYSTEM 12BIT 8-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| 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 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1297CCN8#PBF | 功能描述:IC DATA ACQ SYSTEM 12BIT 8-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1297CCN8PBF | 制造商:Linear Technology 功能描述:LTC1297CCN8PBF |
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