参数资料
型号: TMP122AMDBVTEP
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO6
封装: GREEN, PLASTIC, SOT-23, 6 PIN
文件页数: 15/18页
文件大小: 651K
代理商: TMP122AMDBVTEP
SBOS454 – NOVEMBER 2008 .......................................................................................................................................................................................... www.ti.com
Multiple commands may be strung together as illustrated in Figure 2. The TMP122 accepts commands
alternating with 16-bit response data. On lowering CS, the part always responds with a READ from the address
location indicated by the READ address register. If the next command is a READ command then data is returned
from the address specified by the READ command with the 16th clock resetting the READ address register to
the default temperature register. The TMP122 then expects a 16-bit command. If the command is a WRITE
command, then the 16 clocks following the command will again return temperature data.
Figure 3, Figure 4, Figure 5, and Figure 6 detail the communication sequences.
Table 1. READ Command
READ Command
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Temperature
1
0
Configuration
1
0
1
0
register
Low temperature
1
0
1
0
threshold
High temperature
1
0
1
0
threshold
Table 2. WRITE Command
WRITE Command
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Temperature
0
D1
D0
R1
R0
F1
F0
POL
TM1
TM0
0
1
0
Low temperature
T12
T11
T10
T9
T8
T7
T6
T5
T4
T3
T2
T1
T0
1
0
threshold
High temperature
T12
T11
T10
T9
T8
T7
T6
T5
T4
T3
T2
T1
T0
1
0
threshold
Shutdown command
x
1
Figure 3. READ followed by WRITE Command to TLOW/THIGH Register
Figure 4. READ followed by WRITE Command to Configuration Register
6
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TMP122-EP
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