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| 型號(hào)： | LTC1283ACN#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 5/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DATA ACQ SYS 10BIT 3V 20-DIP |
| 標(biāo)準(zhǔn)包裝： | 18 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 10 b |
| 采樣率（每秒）： | 15k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 電壓電源： | 雙 ± |
| 電源電壓： | ±3.3V，3 V ~ 3.6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 20-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 20-PDIP |
| 包裝： | 管件 |
13
LTC1283
1283fb
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Figure 3. CS High During Conversion
Figure 4. CS Low During Conversion
Serial Port Microprocessors
Most synchronous serial formats contain a shift clock
(SCLK) and two data lines, one for transmitting and one for
receiving. In most cases data bits are transmitted on the
falling edge of the clock (SCLK) and captured on the rising
edge. However, serial port formats vary among MPU
manufacturers as to the smallest number of bits that can
be sent in one group (e.g., 4-bit, 8-bit or 16-bit transfers).
They also vary as to the order in which the bits are
transmitted (LSB- or MSB-first). The following examples
show how the LTC1283 accommodates these differences.
National MICROWIRE (COP820C)
The COP820C transfers data MSB-first and in 8-bit incre-
ments. This is easily accommodated by setting the LTC1283
to MSB-first format and 10-bit word length. The data
output word is then received by the COP820C in one 8-bit
block and one 2-bit block.
Table 2. 3V Microprocessor with Hardware Serial Interfaces
Compatible with the LTC1283*
PART NUMBER
TYPE OF INTERFACE
Motorola
MC68HC11
SPI
MC68HC05
SPI
RCA
CDP68HC05
SPI
National Semiconductor
COP800 Family
MICROWIRE/PLUS
HPC16000 Family
MICROWIRE/PLUS
Texas Instruments
TMS70C02
Serial Port
TMS70C42
Serial Port
*Contact factory for interface information for processors not on this list
MICROWIRE/PLUS is a trademark of National Semiconductor Corp.
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
SHIFT RESULT OUT
AND NEW ADDRESS IN
SCLK
CS
DOUT
DIN
tSMPL
SAMPLE ANALOG
INPUT
SHIFT
MUX ADDRESS
IN
LTC1283 F03
40 TO 44
ACLK CYCLES
ODD/
SIGN
SEL
1
SEL
0
UNI MSBF WL1 WL0
DON’T CARE
SGL/
DIFF
ODD/
SIGN
SEL
1
SEL
0
UNI MSBF WL1 WL0
SGL/
DIFF
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
SHIFT RESULT OUT
AND NEW ADDRESS IN
SCLK
CS
DOUT
DIN
tSMPL
SAMPLE ANALOG
INPUT
SHIFT
MUX ADDRESS
IN
LTC1283 F04
40 TO 44
ACLK CYCLES
ODD/
SIGN
SEL
1
SEL
0
UNI MSBF WL1 WL0
DON’T CARE
SGL/
DIFF
ODD/
SIGN
SEL
1
SEL
0
UNI MSBF WL1 WL0
SGL/
DIFF
SCLK MUST REMAIN LOW
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| LTC1285CN8PBF | 制造商:Linear Technology 功能描述:LTC1285CN8PBF |
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