參數(shù)資料
型號(hào): MCP3427-E/MF
廠商: Microchip Technology
文件頁(yè)數(shù): 18/56頁(yè)
文件大?。?/td> 0K
描述: IC ADC 16BIT I2C PROGBL 10-DFN
產(chǎn)品培訓(xùn)模塊: MCP3901 Analog Front End
標(biāo)準(zhǔn)包裝: 120
位數(shù): 16
采樣率(每秒): 15
數(shù)據(jù)接口: I²C,串行
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 10-VFDFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 10-DFN-EP(3x3)
包裝: 管件
輸入數(shù)目和類(lèi)型: 2 個(gè)差分,單極
產(chǎn)品目錄頁(yè)面: 672 (CN2011-ZH PDF)
2009 Microchip Technology Inc.
DS22226A-page 25
MCP3426/7/8
5.6.5
ACKNOWLEDGE AND
NON-ACKNOWLEDGE
The Master (microcontroller) and the slave (MCP3426/
7/8) use an acknowledge pulse (ACK) as a hand shake
of communication for each byte. The ninth clock pulse
of each byte is used for the acknowledgement. The
clock pulse is always provided by the Master
(microcontroller) and the acknowledgement is issued
by the receiving device of the byte (Note: The
transmitting device must release the SDA line during
the acknowledge pulse.). The acknowledgement is
achieved by pulling-down the SDA line “LOW” during
the 9th clock pulse by the receiving device.
During
reads,
the
Master
(microcontroller)
can
terminate the current read operation by not providing
an acknowledge bit (not Acknowledge (NAK)) on the
last byte. In this case, the MCP3426/7/8 devices
release
the
SDA
line
to
allow
the
Master
(microcontroller) to generate a STOP or repeated
START condition.
The
non-acknowledgement
(NAK)
is
issued
by
providing the SDA line to “HIGH” during the 9th clock
pulse.
FIGURE 5-6:
Data Transfer Sequence on I2C Serial Bus.
SCL
SDA
(A)
(B)
(D)
(A)
(C)
START
CONDITION
ADDRESS OR
ACKNOWLEDGE
VALID
DATA
ALLOWED
TO CHANGE
STOP
CONDITION
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