參數(shù)資料
型號(hào): MCP3421DM-WS
廠商: Microchip Technology
文件頁數(shù): 13/42頁
文件大?。?/td> 0K
描述: BOARD DEMO MCP3421 WEIGHT SCALE
標(biāo)準(zhǔn)包裝: 1
主要目的: 參考設(shè)計(jì),稱量臺(tái)
嵌入式: 是,MCU,8 位
已用 IC / 零件: MCP3421,MCP6V07,PIC18F4550
主要屬性: 2Kg測壓元件,靈敏度為1 mV/V
已供物品: 板,線纜,CD,電源
MCP3421
DS22003E-page 20
2009 Microchip Technology Inc.
FIGURE 5-3:
iming Diagram For Reading From The MCP3421 With 18-Bit Mode.
9
1
9
1
9
1
9
1
9
1
9
1
11
0
1
A
2
A1
A0
D
RDY
O
/C
AC
K
b
y
MCP34
2
1
R/
W
St
a
rt
B
it
b
y
Mast
er
Re
peat
of
D17
(MSB
)
2n
d
B
y
te
Upper
Dat
a
Byte
(Dat
a
on
Clocks
1-
6th
can
be
igno
red)
ACK
by
Mast
er
AC
K
b
y
Mast
er
AC
K
by
Maste
r
T
o
con
tin
ue:
A
C
K
b
y
Mast
er
17
D
16
D
15
D
14
D
13
D
12
D
11
D
10
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
C
1
C
0
S
1
S
0
G
1
G
0
1
s
tB
y
te
MCP34
21
Addr
ess
Byt
e
3rd
Byt
e
Mi
ddle
Dat
a
B
y
te
4t
h
Byte
Lo
w
e
rDa
ta
Byte
5t
h
Byte
Con
fig
uration
B
y
te
(Op
tio
nal)
C
1
C
0
S
1
S
0
G
1
G
0
NAK
by
Master
St
o
p
B
it
b
y
Mast
er
(Op
tio
nal)
Nt
h
Repea
te
d
B
y
te
:
Con
fig
uration
Byte
Note:
MCP3
421
de
vice
code
is
1101
.
Se
e
for
det
a
ils
in
Address
Byte.
S
top
bi
tor
NAK
b
it
can
b
e
issued
an
y
time
duri
ng
readi
ng.
Dat
a
b
it
s
on
clo
cks
1
-
6th
in
2nd
byte
are
repe
ated
MSB
an
d
ca
n
be
ign
o
red.
Configu
ration
byte
repea
ts
as
lon
g
a
s
clo
ck
is
provi
ded
af
ter
the
5
th
byte.
SC
L
SD
A
RDY
O
/C
T
o
e
nd:
NAK
b
y
Mast
er
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