參數(shù)資料
型號: MAX6954APL
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 顯示驅(qū)動器
英文描述: 4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
中文描述: LED DISPLAY DRIVER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 28/38頁
文件大小: 395K
代理商: MAX6954APL
M
4-Wire Interfac ed, 2.7V to 5.5V LED Display
Driver with I/O Expander and K ey S c an
28
______________________________________________________________________________________
REGISTER DATA
DUTY
CYCLE
TYPICAL
SEGMENT
CURRENT (mA)
ADDRESS
CODE
(HEX)
D7
D6
D5
D4
D3
D2
D1
D0
HEX
CODE
1/16 (min on)
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16
10/16
11/16
12/16
13/16
14/16
15/16
15/16 (max on)
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
32.5
35
37.5
37.5
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0x10 to 0x17
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0x0X
0x1X
0x2X
0x3X
0x4X
0x5X
0x6X
0x7X
0x8X
0x9X
0xAX
0xBX
0xCX
0xDX
0xEX
0xFX
See Table 28.
Table 29. Odd Individual Segment Intensity Format
REGISTER DATA
D4
P4
P4 or IRQ status
MODE
ADDRESS
CODE (HEX)
0x05
0x85
D7
X
0
D6
X
0
D5
X
0
D3
P3
P3
D2
P2
P2
D1
P1
P1
D0
P0
P0
Write GPIO Data
Read GPIO Data
Table 30. GPIO Data Register
KEYS
SCANNED
None
1 to 8
9 to 16
17 to 24
25 to 36
PORTS
AVAILABLE
5 pins
3 pins
2 pins
1 pin
None
P0
P1
P2
P3
P4
GPIO
Key_A
Key_A
Key_A
Key_A
GPIO
GPIO
Key_B
Key_B
Key_B
GPIO
GPIO
GPIO
Key_C
Key_C
GPIO
GPIO
GPIO
GPIO
Key_D
GPIO
IRQ
IRQ
IRQ
IRQ
Table 31. Port Scanning Function Allocation
相關(guān)PDF資料
PDF描述
MAX6954 Dual 4-Bit Decade And Binary Counters 16-CFP -55 to 125
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MAX6957 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
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