LC75836WS-T 1/4-Duty General-Purpose LCD Driver Overview The LC75836WS-T is 1/4-duty general-purpose microprocessor-controlled www.onsemi.com LCD driver that can be used in applications such as frequency display in products with electronic tuning. In addition to being able to drive up to 140 segments directly, the LC75836WS-T can also control up to 4 general- purpose output ports. Features 1/4 duty, 1/3 bias drive (Up to 140 segment can be displayed.) Serial data input supports CCB* format communication with the system controller (support 3 V operation). Serial data control of the power-saving mode based backup function and SPQFP48 7x7 / SQFP48 the all segments forced off function. Serial data control of switching between the segment output port and general-purpose output port functions. Serial data control of the frame frequency of the common and segment output waveforms. Either RC oscillator operating or external clock operating mode can be selected with the serial control data. High generality, since display data is displayed directly without the intervention of a decoder circuit. The INH pin allows the display to be forced to the off state. RC oscillation circuit (with external resistor and capacitor) * 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 17 of this data sheet. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number : June 2017 - Rev. 1 LC75836WS-T/D LC75836WS-T Specifications Absolute Maximum Ratings at Ta = 25 C, V = 0 V SS Parameter Symbol Conditions Ratings Unit Maximum supply voltage V max V 0.3 to +7.0 V DD DD Input voltage V 1 CE, CL, DI, INH 0.3 to +7.0 IN V V2 OSC, V 1, V 2 0.3 to V +0.3 IN DD DD DD Output voltage V S1 to S35, COM1 to COM4, P1 to P4, OSC 0.3 to V+0.3 V OUT DD Output current I 1 S1 to S35 300 A OUT I 2 COM1 to COM4 3 OUT mA I 3 P1 to P4 5 OUT Allowable power dissipation Pdmax Ta = 105 C 50 mW Operating temperature Topr 40 to +105 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 +105C, V = 0 V SS Ratings Parameter Symbol Conditions Unit min typ max Supply voltage V V 4.5 6.0 V DD DD Input voltage V1 V 1 2/3V V DD DD DD DD V V2 V 2 1/3V V DD DD DD DD Input high-level voltage V 1 CE, CL, DI, INH 0.4V 6.0 IH DD V V 2 OSC external clock operating mode 0.4V V IH DD DD Input low-level voltage V 1 CE, CL, DI, INH 0 0.2V IL DD V V 2 OSC external clock operating mode 0 0.2V IL DD Recommended external Rosc OSC RC oscillator operating mode resistor 39 k for RC oscillation Recommended external Cosc OSC RC oscillator operating mode capacitor 1000 pF for RC oscillation Guaranteed range of RC fosc OSC RC oscillator operating mode 19 38 76 kHz oscillation External clock operating f OSC external clock operating mode CK 19 38 76 kHz frequency Figure 4 External clock duty cycle D OSC external clock operating mode CK 30 50 70 % Figure 4 Data setup time tds CL, DI Figure 2 Figure 3 160 ns Data hold time tdh CL, DI Figure 2 Figure 3 160 ns CE wait time tcp CE, CL Figure 2 Figure 3 160 ns CE setup time tcs CE, CL Figure 2 Figure 3 160 ns CE hold time tch CE, CL Figure 2 Figure 3 160 ns High-level clock pulse width t H CL Figure 2 Figure 3 160 ns Low-level clock pulse width t L CL Figure 2 Figure 3 160 ns Rise time tr CE, CL, DI Figure 2 Figure 3 160 ns Fall time tf CE, CL, DI Figure 2 Figure 3 160 ns switching time tc , CE Figure 5 INH INH 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