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參數(shù)資料
| 型號(hào)： | MCP40D19T-503E/LT |
| 廠商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 35/43頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 50K 128TAPS SC70-5 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 接片： | 128 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 150 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | I²C |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-TSSOP（5 引線），SC-88A，SOT-353 |
| 供應(yīng)商設(shè)備封裝： | SC-70-5 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁(yè)面： | 674 (CN2011-ZH PDF) |
| 其它名稱： | MCP40D19T-503E/LTDKR |
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MCP40D17/18/19
DS22152B-page 40
2009 Microchip Technology Inc.
FIGURE 5-15:
I2C Read Command Format (Slave Address = “0101110”).
FIGURE 5-16:
I2C Read Communication Behavior (Slave Address = “0101110”).
STOP bit
Slave Address Byte
Command Code
1
01
0
S1
1
0
A0
0
0 A
Slave Address Byte
Data Byte
AD3
0 D6 D5D4
D2D1 D0 A(2) P
Read/Write bit (“0” = Write)
00
0
11
0
1
01
0
1
S = Start Condition
P = Stop Condition
A = Acknowledge
X = Don’t Care
R/W = Read/Write bit
D6:D0 = Data bits
Legend
S
Read/Write bit (“1” = Read)
Note 1: Master Device is responsible for ACK / NACK signal. If a NACK signal occurs, the MCP40D17/18/19 will
abort this transfer and release the bus.
2: The Master Device will Not ACK, and the MCP40D17/18/19 will release the bus so the Master Device can
generate a Stop or Repeated Start condition.
Read 1 Byte with Command Code = 00h
Read 2 Byte with Command Code = 00h
S Slave Address
R
/
W
A
C
K Command Code
A
C
K
R
S Slave Address
R
/
W
A
C
K
Master
S 0 1 011 100 10 000 000 01S 0 101 1 1 011
MCP40D17/18/19
0
I2C Bus
S 01 011 100 00 000 000 00S 0 101 1 1 010
Data Byte
A
C
KP
Master
1 P
MCP40D17/18/19
0 d d d d d d d 1
I2C Bus
0 ddd ddd d1P
S Slave Address
R
/
W
A
C
K Command Code
A
C
K
R
S Slave Address
R
/
W
A
C
K
Master
S 0 1 011 100 10 000 000 01S 0 101 1 1 011
MCP40D17/18/19
0
I2C Bus
S 01 011 100 00 000 000 00S 0 101 1 1 010
Data Byte
A
C
K Data Byte
A
C
KP
Master
0
1 P
MCP40D17/18/19
0 d dd ddd d10 d d dd dd d1
I2C Bus
0 ddd ddd d00 d d dd dd d1P
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