參數(shù)資料
型號: MAX6954
廠商: Maxim Integrated Products, Inc.
元件分類: 通用總線功能
英文描述: Dual 4-Bit Decade And Binary Counters 16-CFP -55 to 125
中文描述: 4線接口、2.7V至5.5V LED顯示驅(qū)動器,帶有輸入/輸出擴展器及鍵掃描
文件頁數(shù): 8/38頁
文件大?。?/td> 395K
代理商: MAX6954
M
4-Wire Interfac ed, 2.7V to 5.5V LED Display
Driver with I/O Expander and K ey S c an
8
_______________________________________________________________________________________
Reading Device Registers
Any register data within the MAX6954 may be read by
sending a logic high to bit D15. The sequence is:
1) Take CLK low.
2) Take
CS
low. This enables the internal 16-bit shift
register.
3) Clock 16 bits of data into DIN, D15 first to D0 last.
D15 is high, indicating a read command and bits
D14 through D8 contain the address of the register
DIGIT
0
1
2
3
4
5
6
7
O0
CCO
a1
a1
a1
a1
a1
a1
O1
CC1
a2
a2
a2
a2
a2
a2
O2
a1
a1
CC2
b
b
b
b
O3
a2
a2
CC3
c
c
c
c
O4
b
b
b
b
CC4
d1
d1
O5
c
c
c
c
CC5
d2
d2
O6
d1
d1
d1
d1
d1
d1
CC6
O7
d2
d2
d2
d2
d2
d2
CC7
O8
e
e
e
e
e
e
e
e
O9
f
f
f
f
f
f
f
f
O10
g1
g1
g1
g1
g1
g1
g1
g1
O11
g2
g2
g2
g2
g2
g2
g2
g2
O12
h
h
h
h
h
h
h
h
O13
i
i
i
i
i
i
i
i
O14
j
j
j
j
j
j
j
j
O15
k
k
k
k
k
k
k
k
O16
l
l
l
l
l
l
l
l
O17
m
m
m
m
m
m
m
m
O18
dp
dp
dp
dp
dp
dp
dp
dp
DIGIT
0
1
2
3
4
5
6
7
O0
CCO
a
a
a
a
a
a
O1
CC1
O2
a
a
CC2
b
b
b
b
O3
CC3
c
c
c
c
O4
b
b
b
b
CC4
d
d
O5
c
c
c
c
CC5
O6
d
d
d
d
d
d
CC6
O7
CC7
O8
e
e
e
e
e
e
e
e
O9
f
f
f
f
f
f
f
f
O10
g1
g1
g1
g1
g1
g1
g1
g1
O11
g2
g2
g2
g2
g2
g2
g2
g2
O12
h
h
h
h
h
h
h
h
O13
i
i
i
i
i
i
i
i
O14
j
j
j
j
j
j
j
j
O15
k
k
k
k
k
k
k
k
O16
l
l
l
l
l
l
l
l
O17
m
m
m
m
m
m
m
m
O18
dp
dp
dp
dp
dp
dp
dp
dp
Table 2. Connection Scheme for Eight 16-Segment Digits
Table 3. Connection Scheme for Eight 14-Segment Digits
D G T O0
0, 0a
1, 1a
2, 2a
3, 3a
4, 4a
5, 5a
6, 6a
7, 7a
O1
CC1
O2
1a
1a
CC2
1b
1b
1b
1b
O3
CC3
1c
1c
1c
1c
O4
1b
1b
1b
1b
CC4
1d
1d
O5
1c
1c
1c
1c
CC5
1dp
1dp
O6
1d
1d
1d
1d
1d
1d
CC6
O7
1dp
1dp
1dp
1dp
1dp
1dp
CC7
O8
1e
1e
1e
1e
1e
1e
1e
1e
O9
1f
1f
1f
1f
1f
1f
1f
1f
O10
1g
1g
1g
1g
1g
1g
1g
1g
O11
2a
2a
2a
2a
2a
2a
2a
2a
O12
2b
2b
2b
2b
2b
2b
2b
2b
O13
2c
2c
2c
2c
2c
2c
2c
2c
O14
2d
2d
2d
2d
2d
2d
2d
2d
O15
2e
2e
2e
2e
2e
2e
2e
2e
O16
2f
2f
2f
2f
2f
2f
2f
2f
O17
2g
2g
2g
2g
2g
2g
2g
2g
O18
2dp
2dp
2dp
2dp
2dp
2dp
2dp
2dp
C C 0
1a
1a
1a
1a
1a
1a
Table 4. Connection Scheme for Sixteen 7-Segment Digits
D15
R/
W
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ADDRESS
MSB
DATA
LSB
Table 5. Serial-Data Format (16 Bits)
*
Each cathode driver output (CC0-CC7) connects to
two
digit common cathode pins.
相關(guān)PDF資料
PDF描述
MAX6954AAX Dual 4-Bit Decade And Binary Counters 20-LCCC -55 to 125
MAX6957 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
MAX6957AAI 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
MAX6957AAX 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
MAX6957AGL 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
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