LC75813E, LC75813T 1/3, 1/4-Duty General-Purpose LCD Driver Overview The LC75813E and LC75813T are 1/3 duty and 1/4 duty general-purpose www.onsemi.com LCD drivers that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75813E and LC75813T can drive an LCD with up to 344 segments directly. The LC75813E and LC75813T can also control up to 8 general-purpose output ports. Since the LC75813E and LC75813T use separate power supply systems for the LCD drive block and the logic block, the LCD driver block power-supply voltage can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power- supply voltage. Features PQFP100 14x20 / QIP100E Switching between 1/3 duty and 1/4 duty drive techniques under serial data LC75813E control. Switching between 1/2 bias and 1/3 bias drive techniques under serial data control. Up to 261 segments for 1/3 duty drive and 344 segments for 1/4 duty drive can be displayed. Serial data input supports CCB* format communication with the system controller. Serial data control of the power-saving mode based backup function and all the segments forced off function. TQFP100 14x14 / TQFP100 Serial data control of switching between the segment output port and the LC75813T general-purpose output port functions. Serial data control of frame frequency for common and segment output waveforms. High generality, since display data is displayed directly without decoder intervention. Independent VLCD for the LCD driver block (VLCD can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power- supply voltage.) The INH pin can force the display to the off state. RC oscillator circuit * Computer Control Bus (CCB) is an ON Semiconductors original bus format and the bus addresses are controlled by ON Semiconductor. ORDERING INFORMATION See detailed ordering and shipping information on page 28 of this data sheet. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number : June 2017 - Rev. 1 LC75813E T/D LC75813E, LC75813T Specifications Absolute Maximum Ratings at Ta = 25 C, V = 0 V SS Parameter Symbol Conditions Ratings unit V max V 0.3 to +7.0 DD DD Maximum supply voltage V V max V 0.3 to +7.0 LCD LCD INH V 1 CE, CL, DI, 0.3 to +7.0 IN V 2 OSC 0.3 to V +0.3 Input voltage V IN DD V3 V 1, V 2 0.3 to V +0.3 IN LCD LCD LCD V 1 OSC 0.3 to V +0.3 OUT DD Output voltage V V 2 S1 to S87, COM1 to COM4, P1 to P8 0.3 to V +0.3 OUT LCD I 1 S1 to S87 300 A OUT Output current I 2 COM1 to COM4 3 mA OUT I 3 P1 to P8 5 mA OUT Allowable power dissipation Pd max Ta = 85C 200 mW Operating temperature Topr 40 to +85 C Storage temperature Tstg 55 to +125 C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Allowable Operating Ranges at Ta = 40 to +85C, V = 0 V SS Ratings Parameter Symbol Conditions Unit min typ max V V 2.7 6.0 DD DD Supply voltage V V V 2.7 6.0 LCD LCD V 1 V 1 2/3V V LCD LCD LCD LCD Input voltage V V 2 V 2 1/3V V LCD LCD LCD LCD Input high-level voltage V CE, CL, DI, INH 0.8V 6.0 V IH DD Input low-level voltage V CE, CL, DI, INH 0 0.2V V IL DD Recommended external R OSC OSC 39 k resistance Recommended external C OSC OSC 1000 pF capacitance Guaranteed oscillation range f OSC 19 38 76 kHz OSC Data setup time tds CL, DI : Figure 2 160 ns Data hold time tdh CL, DI : Figure 2 160 ns CE wait time tcp CE, CL : Figure 2 160 ns CE setup time tcs CE, CL : Figure 2 160 ns CE hold time tch CE, CL : Figure 2 160 ns High-level clock pulse width t H CL : Figure 2 160 ns Low-level clock pulse width t L CL : Figure 2 160 ns Rise time tr CE, CL, DI : Figure 2 160 ns Fall time tf CE, CL, DI : Figure 2 160 ns INH switching time tc INH, CE : Figure 3 10 s Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. www.onsemi.com 2