参数资料
型号: MAX6955AAX+T
厂商: Maxim Integrated
文件页数: 29/43页
文件大小: 0K
描述: IC DRVR DSPL LED 36-SSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1,000
显示器类型: LED
配置: 7、14、16 段
接口: I²C
电流 - 电源: 22mA
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 36-BSOP(0.295",7.50mm 宽)
供应商设备封装: 36-SSOP
包装: 带卷 (TR)
MAX6955
2-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
Table 30. Odd Individual Segment Intensity Format
DUTY
CYCLE
TYPICAL
SEGMENT
CURRENT (mA)
ADDRESS
CODE
(HEX)
D7
D6
D5
REGISTER DATA
D4 D3
D2
D1
D0
HEX
CODE
1/16 (min on)
2/16
3/16
4/16
5/16
6/16
7/16
2.5
5
7.5
10
12.5
15
17.5
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
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
0x0X
0x1X
0x2X
0x3X
0x4X
0x5X
0x6X
8/16
9/16
10/16
11/16
12/16
13/16
14/16
15/16
15/16 (max on)
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
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
See Table 29
0x7X
0x8X
0x9X
0xAX
0xBX
0xCX
0xDX
0xEX
0xFX
Table 31. GPIO Data Register
MODE
ADDRESS
CODE (HEX)
D7
D6
D5
REGISTER DATA
D4 D3
D2
D1
D0
Write GPIO Data
Read GPIO Data
0x05
0x05
X
0
X
0
X
0
P4
P4 or IRQ status
P3
P3
P2
P2
P1
P1
P0
P0
Table 32. Port Scanning Function Allocation
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
GPIO
Key_A
Key_A
Key_A
Key_A
P1
GPIO
GPIO
Key_B
Key_B
Key_B
P2
GPIO
GPIO
GPIO
Key_C
Key_C
P3
GPIO
GPIO
GPIO
GPIO
Key_D
P4
GPIO
IRQ
IRQ
IRQ
IRQ
Maxim Integrated
29
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