Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - display driver LED 5 x 7 (matrix) 4 numbers 4-wire, Seriell 12 mA SSOP 36

MAX6952

4-Wire Interfaced, 2.7V to 5.5V,

4-Digit 5

7 Matrix LED Display Driver

10 ______________________________________________________________________________________

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).

ADDRESS

CODE (HEX)

D7 D6 D5 D4 D3 D2 D1 D0

Intensity10 1/16 (min on) 0x01 00000000

Intensity32 1/16 (min on) 0x02 00000000

Scan Limit Display 4 digits: 0 1 2 3 0x03 XXXXXXX1

Configuration

Shutdown enabled,

blink speed is slow,

blink disabled

0x04 0 X 0000X0

User-Defined Font

Address Pointer

Address 0x80; pointing to

the first user-defined font

location

0x05 10000000

Display Test Normal operation 0x07 XXXXXXX0

Digit 0 Plane P0 Blank digit (0x20) 0x20 00100000

Digit 1 Plane P0 Blank digit (0x20) 0x21 00100000

Digit 2 Plane P0 Blank digit (0x20) 0x22 00100000

Digit 3 Plane P0 Blank digit (0x20) 0x23 00100000

Digit 0 Plane P1 Blank digit (0x20) 0x40 00100000

Digit 1 Plane P1 Blank digit (0x20) 0x41 00100000

Digit 2 Plane P1 Blank digit (0x20) 0x42 00100000

Digit 3 Plane P1 Blank digit (0x20) 0x43 00100000

Table 5. Initial Power-Up Register Status

D7 D6 D5 D4 D3 D2 D1 D0

Configuration

PXRTEBXS

Table 6. Configuration Register Format

MODE

D7 D6 D5 D4 D3 D2 D1 D0

Shutdown

Mode

PXRTEBX0

Normal

Operation

PXRTEBX1

Table 7. Shutdown Control (S Data Bit D0)

Format