Description
Equivalent Circuit
SVCC
A1 pin
A2
RT
Reference current setting resistor connection pin.By connecting the external resistor between this pin and GND, the reference current is generated.The pin voltage is about 0.61V.Change of this current value enables change of the oscillation frequency and LED driver current value (COL1 to COL17 only).SVCC
A2 pin
A3 A6 B1 B2 B4 B5 C2
ROW4 ROW7 ROW2 ROW3 ROW5 ROW6 ROW1
N-channel driver output pins 1 to 7 for row (cathode) drive.Must be connected t
Features
- 7×17 dot-matrix LED driver (5×15 dot-matrix supported).
- Each dot can be set for display over the serial bus. Functions.
- LED driver Column (anode) driving P-channel driver × 17 channels Row (cathode ) driving N-channel driver × 7 channels LED current per dot : 25mA maximum Two flames of 7×17 (5×15) patterns can be set. 7 grayscale level adjustment on a dot basis (PWM duty factor switching) Reverse display Horizontal scroll (1 frame/2 frames) Continuous/single scroll s.