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MAX6959BAEE+ Datasheet

  • MAX6959BAEE+

  • IC DRVR DSPL LED 16-QSOP

  • 19頁

  • Maxim   Maxim

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2-Wire Interfaced, 3V to 5.5V, 4-Digit,
9-Segment LED Display Drivers with Keyscan
MAX6958/MAX6959
Table 5. No-Decode Mode Data Bits and Corresponding Segment Lines
DIGIT/SEGMENT REGISTER
Digit 0
Digit 1
Digit 2
Digit 3
Segments
ADDRESS
CODE (HEX)
0x20
0x21
0x22
0x23
0x24
REGISTER DATA
D7
X
X
X
X
SEG 7
D6
SEG a
SEG a
SEG a
SEG a
SEG 6
D5
SEG b
SEG b
SEG b
SEG b
SEG 5
D4
SEG c
SEG c
SEG c
SEG c
SEG 4
D3
SEG d
SEG d
SEG d
SEG d
SEG 3
D2
SEG e
SEG e
SEG e
SEG e
SEG 2
D1
SEG f
SEG f
SEG f
SEG f
SEG 1
D0
SEG g
SEG g
SEG g
SEG g
SEG 0
The digit registers and segments register use 1 bit to
set the state of one segment. Each bit is high to turn a
segment on, or low to turn it off (Table 6).
Table 6. No-Decode Mode Data Bits and
Corresponding Segment Lines
REGISTER BIT
0
1
SEGMENT BEHAVIOR
Segment off
Segment on
In hexadecimal code-decode mode, the decoder looks
only at the lower nibble of the data in the digit register
(D3鈥揇0), disregarding bits D7鈥揇4. Table 7 lists the hexa-
decimal code font. When no decode is selected, data
bits D7鈥揇0 correspond to the segment lines of the
MAX6958/MAX6959. Table 8 shows the one-to-one pair-
ing of each data bit to the appropriate segment line.
Initial Power-Up
On initial power-up, all control registers are reset, the
display is blanked, and the MAX6958/MAX6959 enter
shutdown mode (Table 9). At power-up, the MAX6958/
MAX6959 are initially set to scan four digits, do not
decode data in the digit registers or scan key switches
(MAX6959 only), and the intensity register is set to a
low value (4/64 intensity).
Decode-Mode Register
The decode-mode register sets hexadecimal code
(0鈥?, A鈥揊) or no-decode operation for each digit. Each
bit in the register corresponds to one digit. Logic high
selects hexadecimal decoding while logic low bypass-
es the decoder. Digits can be set for decode or no
decode in any combination. Bit assignment and exam-
ples of the decode mode control register format are
shown in Table 7.
Table 7. Decode-Mode Register Examples
DECODE MODE
Bit assignment for each digit
No decode for digits 3鈥?
Hexadecimal decode for digit
0; no decode for digits 3鈥?
鈥?/div>
Hexadecimal decode for digits
2鈥?; no decode for digit 3
Hexadecimal decode for digit
3; no decode for digits 2鈥?
鈥?/div>
Hexadecimal decode for digits
3鈥?
ADDRESS
CODE (HEX)
0x01
0x01
0x01
鈥?/div>
0x01
0x01
鈥?/div>
0x01
REGISTER DATA
D7
X
X
X
鈥?/div>
X
X
鈥?/div>
X
D6
X
X
X
鈥?/div>
X
X
鈥?/div>
X
D5
X
X
X
鈥?/div>
X
X
鈥?/div>
X
D4
X
X
X
鈥?/div>
X
X
鈥?/div>
X
D3
Digit 3
0
0
鈥?/div>
0
1
鈥?/div>
1
D2
Digit 2
0
0
鈥?/div>
1
0
鈥?/div>
1
D1
Digit 1
0
0
鈥?/div>
1
0
鈥?/div>
1
D0
Digit 0
0
1
鈥?/div>
1
0
鈥?/div>
1
HEX
CODE
鈥?/div>
0xX0
0xX1
鈥?/div>
0xX7
0xX8
鈥?/div>
0xXF
10
______________________________________________________________________________________

MAX6959BAEE+ 產品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 100

  • 集成電路 (IC)

  • PMIC - 顯示器驅動器

  • -

  • LED

  • 7 段 + 2 個信號器

  • SMBus（2 線/I²C）

  • 4 位數(shù)字

  • 5.9mA

  • 3 V ~ 5.5 V

  • -40°C ~ 125°C

  • 表面貼裝

  • 16-SSOP（0.154"，3.90mm 寬）

  • 16-QSOP

  • 管件

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