MAX6952 데이터 시트보기 (PDF) - Maxim Integrated
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MAX6952 Datasheet PDF : 21 Pages
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4-Wire Interfaced, 2.7V to 5.5V,
4-Digit 5 ✕ 7 Matrix LED Display Driver
Shutdown Mode (S Data Bit D0) Format
The S bit in the configuration register selects shutdown
or normal operation (Table 7). The display driver can be
programmed while in shutdown mode, and shutdown
mode is overridden when in display test mode. For nor-
mal operation, the S bit should be set to 1.
Blink Rate Selection (B Data Bit D2) Format
The B bit in the configuration register selects the blink
rate. This is the speed that the segments alternate
between plane P0 and plane P1 refresh data. The blink
rate is determined by the frequency of the multiplex clock
OSC, in addition to the setting of the B bit (Table 8).
Global Blink Enable/Disable
(E Data Bit D3) Format
The E bit globally enables or disables the blink feature
of the device (Table 9). When blink is globally enabled,
then the digit data in both planes P0 and P1 are used
to control the display (Table 10).
Table 5. Initial Power-Up Register Status
REGISTER
Intensity10
Intensity32
Scan Limit
Configuration
POWER-UP CONDITION
ADDRESS
REGISTER DATA
CODE (HEX) D7 D6 D5 D4 D3 D2 D1 D0
1/16 (min on)
0x01
0
0
0
0
0
0
0
0
1/16 (min on)
0x02
0
0
0
0
0
0
0
0
Display 4 digits: 0 1 2 3
0x03
X
X
X
X
X
X
X
1
Shutdown enabled,
blink speed is slow,
blink disabled
0x04
0
X
0
0
0
0
X
0
User-Defined Font
Address Pointer
Display Test
Digit 0 Plane P0
Digit 1 Plane P0
Digit 2 Plane P0
Digit 3 Plane P0
Digit 0 Plane P1
Digit 1 Plane P1
Digit 2 Plane P1
Digit 3 Plane P1
Address 0x80; pointing to
the first user-defined font
location
Normal operation
Blank digit (0x20)
Blank digit (0x20)
Blank digit (0x20)
Blank digit (0x20)
Blank digit (0x20)
Blank digit (0x20)
Blank digit (0x20)
Blank digit (0x20)
0x05
0x07
0x20
0x21
0x22
0x23
0x40
0x41
0x42
0x43
1
0
0
0
0
0
0
0
X
X
X
X
X
X
X
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
Table 6. Configuration Register Format
REGISTER DATA
REGISTER
D7 D6 D5 D4 D3 D2 D1 D0
Configuration
Register
P XRTEBXS
Table 7. Shutdown Control (S Data Bit D0)
Format
MODE
Shutdown
Mode
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
P XRTEBX 0
Normal
Operation
P XRTEBX 1
10 ______________________________________________________________________________________
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