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MAX6959BAEE+ Datasheet

  • MAX6959BAEE+

  • IC DRVR DSPL LED 16-QSOP

  • 679.40KB

  • 19頁(yè)

  • Maxim   Maxim

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2-Wire Interfaced, 3V to 5.5V, 4-Digit,
9-Segment LED Display Drivers with Keyscan
MAX6958/MAX6959
Configuration Register
Use the configuration register to enter and exit shut-
down, check device type, and globally clear the digit
data (Tables 10鈥?3). The S bit selects shutdown or nor-
mal operation (read/write). The D bit reports whether
the device is a MAX6958 or a MAX6959 (read only).
The R bit clears all the digit and segment data (data is
not stored-transient bit)
scanned. Since the number of scanned digits affects
the display brightness, the scan-limit register should
not be used to blank portions of the display (such as
leading zero suppression).
Intensity Register
An internal pulse-width modulator controlled by the
intensity register provides digital control of display
brightness. The modulator scales the average segment
current in 63 steps from a maximum of 63/64 down to
1/64 of the 23mA peak current. The minimum interdigit
blanking time is set to 1/64 of a cycle (Figure 11 and
Table 15).
Scan-Limit Register
The scan-limit register sets the number of digits dis-
played, from one to four (Table 14). A bicolor digit is
connected as two monocolor digits. The scan-limit reg-
ister also limits the number of keys that can be
Table 10. Configuration Register Format
MODE
Configuration register
ADDRESS
CODE (HEX)
0x04
REGISTER DATA
D7
X
D6
X
D5
R
D4
X
D3
X
D2
X
D1
D
D0
S
Table 11. Shutdown Control (S Data Bit D0) Format
MODE
Shutdown mode
Normal operation
ADDRESS
CODE (HEX)
0x04
0x04
REGISTER DATA
D7
X
X
D6
X
X
D5
R
R
D4
X
X
D3
X
X
D2
X
X
D1
D
D
D0
0
1
Table 12. Device Readback (D Data Bit D1) Format
MODE
MAX6958
MAX6959
ADDRESS
CODE (HEX)
0x04
0x04
REGISTER DATA
D7
X
X
D6
X
X
D5
R
R
D4
X
X
D3
X
X
D2
X
X
D1
0
1
D0
S
S
Table 13. Global Clear Digit Data (R Data Bit D5) Format
MODE
Digit and segment data are unaffected
Digit and segment data are cleared
ADDRESS
CODE (HEX)
0x04
0x04
REGISTER DATA
D7
X
X
D6
X
X
D5
0
1
D4
X
X
D3
X
X
D2
X
X
D1
D
D
D0
S
S
Table 14. Scan-Limit Register Format
SCAN LIMIT
Display digit 0 and segments 0, 4
Display digits 0, 1 and segments 0, 1, 4, 5
Display digits 0, 1, 2 and segments 0, 1, 2, 4, 5, 6
Display digits 0, 1, 2, 3 and segments 0, 1, 2, 3, 4,
5, 6, 7
ADDRESS
CODE (HEX)
0x03
0x03
0x03
0x03
REGISTER DATA
D7
X
X
X
X
D6
X
X
X
X
D5
X
X
X
X
D4
X
X
X
X
D3
X
X
X
X
D2
X
X
X
X
D1
0
0
1
1
D0
0
1
0
1
HEX
CODE
0xX0
0xX1
0xX2
0xX3
12
______________________________________________________________________________________

MAX6959BAEE+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 100

  • 集成電路 (IC)

  • PMIC - 顯示器驅(qū)動(dòng)器

  • -

  • LED

  • 7 段 + 2 個(gè)信號(hào)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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