LC75834W-E

LC75834E, LC75834W, LC75834JE 1/4-Duty General-Purpose LCD Driver Overview The LC75834E, LC75834W, and LC75834JE are 1/4 duty general-purpose LCD drivers that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75834E and LC75834W can drive an LCD with up to 136 segments directly, the LC75834JE can drive an LCD with up to 120 segments directly. The LC75834E and LC75834W and LC75834JE can also control up to 8 general-purpose output ports. Since the LC75834E, LC75834W, and LC75834JE 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 V, regardless of the logic block power-supply voltage. Features • Supports both 1/4 duty 1/2 bias and 1/4 duty 1/3 bias LCD drive under serial data control. LC75834E, LC75834W : up to 136 segments LC75834JE : up to 120 segments (without the S9, S18, S27, S34 segment output pins from the LC75834E, LC75834W) • Serial data input supports CCB* format communication with the system controller. www.onsemi.com PQFP48 14x14 / QIP48E [LC75834E] SPQFP48 7x7 / SQFP48 [LC75834W] • Serial data control of the power-saving mode based backup function and all the segments forced off function • Serial data control of switching between the segment output port and the general-purpose output port functions • High generality, since display data is displayed directly without decoder intervention. PQFP44 10x10 / QIP44M [LC75834JE] • Independent VLCD for the LCD driver block (VLCD can be set to any voltage in the range 2.7 to 6.0 V, 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 Semiconductor’s original bus format and the bus addresses are controlled by ON Semiconductor. ORDERING INFORMATION See detailed ordering and shipping information on page 22 of this data sheet. © Semiconductor Components Industries, LLC, 2017 July 2017 - Rev. 1 1 Publication Order Number : LC75834E_W_JE/D LC75834E, LC75834W, LC75834JE Specifications Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V Parameter Symbol Maximum supply voltage Conditions Ratings Unit VDD max VDD –0.3 to +7.0 V VLCD max –0.3 to +7.0 V VIN 1 VLCD CE, CL, DI, INH VIN 2 OSC VIN 3 VLCD 1, VLCD 2 Input voltage Output voltage Output current Allowable power dissipation VOUT 1 OSC VOUT 2 S1 to S34, COM1 to COM4, P1 to P8 IOUT 1 S1 to S34 –0.3 to +7.0 V –0.3 to VDD + 0.3 V –0.3 to VLCD + 0.3 V –0.3 to VDD + 0.3 V –0.3 to VLCD + 0.3 300 V μA IOUT 2 COM1 to COM4 3 mA IOUT 3 P1 to P8 5 mA Pd max Ta = 85°C 150 mW Operating temperature Topr –40 to +85 °C Storage temperature Tstg –55 to +125 °C Note: The LC75834JE do not have the S9, S18, S27 S34 output pins. 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 +85°C, VSS = 0 V Parameter Supply voltage Input voltage Input high level voltage Input low level voltage Symbol Conditions Ratings min typ max Unit VDD VDD 2.7 6.0 V VLCD VLCD 2.7 6.0 V VLCD1 VLCD1 2/3 VLCD VLCD V VLCD2 VLCD2 1/3 VLCD VLCD V 6.0 V VIH VIL CE, CL, DI, INH 0.8 VDD CE, CL, DI, INH 0 Recommended external resistance ROSC Recommended external capacitance COSC OSC Guaranteed oscillation range fOSC OSC OSC 0.2 VDD 680 25 50 V k 43 pF 100 kHz Data setup time tds CL, DI: Figure 2 160 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 tøH CL: Figure 2 160 ns Low level clock pulse width tøL CL: Figure 2 160 ns ns Rise time tr CE, CL, DI: Figure 2 160 Fall time tf CE, CL, DI: Figure 2 160 INH switching time tc INH, CE: Figure 3 10 ns ns μs 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 LC75834E, LC75834W, LC75834JE Electrical Characteristics for the Allowable Operating Ranges Parameter Symbol Conditions Hysteresis VH CE, CL, DI, INH Input high level current IIH CE, CL, DI, INH; VI = 6.0 V Input low level current Output high level voltage Output low level voltage Output middle level voltage*1 Oscillator frequency Current drain IIL Ratings min typ Unit max 0.1 VDD CE, CL, DI, INH; VI = 0 V V 5.0 μA –5.0 μA VOH 1 S1 to S34; IO = –20 μA VLCD – 0.9 V VOH 2 COM1 to COM4; IO = –100 μA VLCD – 0.9 V VOH 3 P1 to P8; IO = –1 mA VLCD – 0.9 VOL 1 S1 to S34; IO = 20 μA 0.9 V VOL 2 COM1 to COM4; IO = 100 μA 0.9 V VOL 3 P1 to P8; IO = 1 mA 0.9 V VMID 1 COM1 to COM4; 1/2 bias, IO = ±100 μA 1/2 VLCD – 0.9 1/2 VLCD + 0.9 V VMID 2 S1 to S34; 1/3 bias, IO = ±20 μA 2/3 VLCD – 0.9 2/3 VLCD + 0.9 V VMID 3 S1 to S34; 1/3 bias, IO = ±20 μA 1/3 VLCD – 0.9 1/3 VLCD + 0.9 V VMID 4 COM1 to COM4; 1/3 bias, IO = ±100 μA 2/3 VLCD – 0.9 2/3 VLCD + 0.9 V VMID 5 COM1 to COM4; 1/3 bias, IO = ±100 μA 1/3 VLCD – 0.9 1/3 VLCD + 0.9 V fOSC OSC; ROSC = 43 k , COSC = 680 pF IDD 1 VDD; power saving mode IDD 2 ILCD 1 VDD; VDD = 6.0 V, output open, fosc = 50 k Hz VLCD; power saving mode ILCD 2 VLCD; VLCD = 6.0 V, output open 1/2 bias, fosc = 50 k Hz ILCD 3 VLCD; VLCD = 6.0 V, output open 1/3 bias, fosc = 50 k Hz 40 V 50 60 kHz 5 μA 460 μA 5 μA 100 200 μA 60 120 μA 230 Note: *1 Excluding the bias voltage generation divider resistors built in the VLCD1 and VLCD2. (See Figure 1.) The LC75834JE do not have the S9, S18, S27, S34 output pins. Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. www.onsemi.com 3 LC75834E, 75834W, 75834JE VLCD VLCD1 To the common segments drivers VLCD2 Except these resistors VSS Figure 1 1. When CL is stopped at the low level VIH CE VIL tøH CL tr DI tøL VIH 50% VIL tf tcp tcs tch VIH VIL tds tdh 2. When CL is stopped at the high level VIH CE VIL tøL tøH CL tf VIH 50% VIL tr tcp tcs tch VIH VIL DI tds tdh Figure 2 Page 4 LC75834E, 75834W, 75834JE 25 24 LC75834E LC75834W 48 1 13 12 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 COM4 VDD VLCD VLCD1 VLCD2 VSS OSC INH CE CL DI 33 34 23 22 LC75834JE 44 1 12 11 S24 S23 S22 S21 S20 S19 S17 S16 S15 S14 S13 P1/S1 P2/S2 P3/S3 P4/S4 P5/S5 P6/S6 P7/S7 P8/S8 S10 S11 S12 36 37 P1/S1 P2/S2 P3/S3 P4/S4 P5/S5 P6/S6 P7/S7 P8/S8 S9 S10 S11 S12 COM3 COM4 VDD VLCD VLCD1 VLCD2 VSS OSC INH CE CL DI COM3 COM2 COM1 S33 S32 S31 S30 S29 S28 S26 S25 COM2 COM1 S34 S33 S32 S31 S30 S29 S28 S27 S26 S25 Pin Assignments COMMON DRIVER S2/P2 S1/P1 S9 S8/P8 S34 S33 COM1 COM2 COM4 COM3 Block Diagram SEGMENT DRIVER & LATCH INH OSC CLOCK GENERATOR SHIFT REGISTER VDD VLCD VLCD1 ADDRESS DETECTOR VLCD2 CE CL DI VSS Note: The LC75834JE do not have the S9, S18, S27, S34 output pins. Page 5 LC75834E, 75834W, 75834JE Pin Functions Pin No. Active I/O Handling when unused Segment outputs for displaying the display data transferred by serial data input. The pins S1/P1 to S8/P8 can be used as general-purpose output ports when so set up by the control data. — O Open 31 32 33 34 Common driver outputs. The frame frequency fO is given by: fO = (fOSC/512) Hz. — O Open 44 40 Oscillator connection An oscillator circuit is formed by connecting an external resistor and capacitor to this pin. — I/O VDD 46 47 48 42 43 44 Serial data transfer inputs. These pins are connected to the control microprocessor. I GND L I GND Pin LC75834E, 75834W LC75834JE S1/P1 to S8/P8 S9 to S34 1 to 8 1 to 8 9 to 34 9 to 30 COM1 COM2 COM3 COM4 35 36 37 38 OSC CE CL DI Function CE: Chip enable CL: Synchronization clock DI: Transfer data H — INH 45 41 Display off control input •INH = low (VSS): Off S1/P1 to S8/P8 = Low (These pins are forcible set to the segment output port function and fixed at the VSS level.) S9 to S34 = Low (VSS), COM1 to COM4 = Low (VSS) •INH = high (VDD): On Note that serial data transfers can be performed when the display is forced off by this pin. VLCD1 41 37 Used to apply the LCD drive 2/3 bias voltage externally. This pin must be connected to VLCD2 when 1/2 bias drive is used. — I Open VLCD2 42 38 Used to apply the LCD drive 1/3 bias voltage externally. This pin must be connected to VLCD1 when 1/2 bias drive is used. — I Open VDD 39 35 Logic block power supply. Provide a voltage in the range 2.7 to 6.0 V. — — — VLCD 40 36 LCD driver block power supply. Provide a voltage in the range 2.7 to 6.0 V. — — — VSS 43 39 Ground pin. Connect to ground. — — — Note: The LC75834JE do not have the S9, S18, S27, S34 output pins. Page 6 LC75834E, 75834W, 75834JE Serial Data Transfer Format 1. When CL is stopped at the low level CE CL DI 0 1 1 0 0 0 1 0 D1 D2 D3 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 0 0 0 P0 P1 P2 P3 DR SC BU 0 0 B0 B1 B2 B3 A0 A1 A2 A3 CCB address 8 bits 0 1 1 0 0 Display data 36 bits 0 1 0 D37 D38 D39 Control data 10 bits D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 0 0 0 0 0 0 0 DD 2 bits 0 0 0 0 1 B0 B1 B2 B3 A0 A1 A2 A3 Display data 36 bits CCB address 8 bits 0 1 1 0 0 0 1 0 D73 D74 D75 Fixed data 10 bits D97 D98 D99 D100 D101 D102 D103 D104 D105 D106 D107 D108 0 0 0 0 0 0 0 DD 2 bits 0 0 0 1 0 B0 B1 B2 B3 A0 A1 A2 A3 CCB address 8 bits 0 1 1 0 0 Fixed data 10 bits Display data 36 bits 0 1 0 D109 D110 D111 D133 D134 D135 D136 0 0 0 0 0 0 0 0 0 0 0 0 0 0 DD 2 bits 0 0 0 0 1 1 B0 B1 B2 B3 A0 A1 A2 A3 CCB address 8 bits Display data 28 bits Fixed data 18 bits DD 2 bits Note: DD ... Direction data Page 7 LC75834E, 75834W, 75834JE 2. When CL is stopped at the high level CE CL DI 0 1 1 0 0 0 1 B0 B1 B2 B3 A0 A1 A2 0 D1 D2 D3 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 1 1 0 0 0 1 B0 B1 B2 B3 A0 A1 A2 1 1 0 0 0 0 D37 D38 D39 1 1 0 0 0 0 0 0 0 1 CCB address 8 bits P2 P3 DR SC BU 0 0 DD 2 bits 0 0 0 0 0 0 Fixed data 10 bits 0 1 0 D73 D74 D75 D97 D98 D99 D100 D101 D102 D103 D104 D105 D106 D107 D108 0 0 0 0 0 0 DD 2 bits 0 0 0 0 1 0 A3 Display data 36 bits B0 B1 B2 B3 A0 A1 A2 P1 Control data 10 bits D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 CCB address 8 bits 1 P0 Display data 36 bits B0 B1 B2 B3 A0 A1 A2 0 0 A3 CCB address 8 bits 0 0 Display data 36 bits CCB address 8 bits 0 0 A3 0 D109 D110 D111 D133 D134 D135 D136 0 Fixed data 10 bits 0 0 0 0 0 0 0 0 0 0 0 0 0 DD 2 bits 0 0 0 0 1 1 A3 Display data 28 bits Fixed data 18 bits DD 2 bits Note: DD ... Direction data • CCB address...............46H • D1 to D136.................Display data (At the LC75834JE, the display data D33 to D36, D69 to D72, D105 to D108, D133 to D136 must be set to 0. • P0 to P3 ......................Segment output port/general-purpose output port switching control data • DR ..............................1/2 bias drive or 1/3 bias drive switching control data • SC...............................Segments on/off control data • BU ..............................Normal mode/power-saving mode control data Page 8 LC75834E, 75834W, 75834JE Serial Data Transfer Examples • At the LC75834E and LC75834W when109 or more segments are used, at the LC75834JE when 97 or more segments are used,192 bits of serial data must be sent. 48 bits 8 bits 0 1 1 0 0 0 1 0 D1 D2 D3 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 0 0 0 P0 P1 P2 P3 DR SC BU 0 0 D37 D38 D39 D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 0 0 0 0 0 0 0 0 0 0 0 1 D73 D74 D75 D97 D98 D99 D100 D101 D102 D103 D104 D105 D106 D107 D108 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 B0 B1 B2 B3 A0 A1 A2 A3 0 1 1 0 0 0 1 0 B0 B1 B2 B3 A0 A1 A2 A3 0 1 1 0 0 0 1 0 B0 B1 B2 B3 A0 A1 A2 A3 0 1 1 0 0 0 1 0 D109 D110 D111 D133 D134 D135 D136 0 0 0 0 0 0 0 0 B0 B1 B2 B3 A0 A1 A2 A3 Note: At the LC75834JE, the display data D33 to D36, D69 to D72, D105 to D108, D133 to D136 must be set to 0. • At the LC75834E and LC75834W when used with less than 109 segments, at the LC75834JE when used with less than 97 segments, transfer either 48 bits, 96 bits or 144 bits of serial data depending on the number of segments used. However, the serial data shown in the figure below (the display data D1 to D36 and the control data) must be sent. 8 bits 0 1 1 0 0 48 bits 0 1 0 D1 D2 D3 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 0 0 0 P0 P1 P2 P3 DR SC BU 0 0 B0 B1 B2 B3 A0 A1 A2 A3 Note: At the LC75834JE, the display data D33 to D36 must be set to 0. Control Data Functions 1. P0 to P3: Segment output port/general-purpose output port switching control data. These control data bits switch the S1/P1 to S8/P8 output pins between their segment output port and general-purpose output port functions. Control data Output pin states P0 P1 P2 P3 S1/P1 S2/P2 S3/P3 S4/P4 S5/P5 S6/P6 S7/P7 S8/P8 0 0 0 0 S1 S2 S3 S4 S5 S6 S7 S8 0 0 0 1 P1 S2 S3 S4 S5 S6 S7 S8 0 0 1 0 P1 P2 S3 S4 S5 S6 S7 S8 0 0 1 1 P1 P2 P3 S4 S5 S6 S7 S8 0 1 0 0 P1 P2 P3 P4 S5 S6 S7 S8 0 1 0 1 P1 P2 P3 P4 P5 S6 S7 S8 0 1 1 0 P1 P2 P3 P4 P5 P6 S7 S8 0 1 1 1 P1 P2 P3 P4 P5 P6 P7 S8 1 0 0 0 P1 P2 P3 P4 P5 P6 P7 P8 Note: Sn (n = 1 to 8): Segment output ports Pn (n = 1 to 8): General-purpose output ports Page 9 LC75834E, 75834W, 75834JE Also note that when the general-purpose output port function is selected, the output pins and the display data will have the correspondences listed in the tables below. Output pin Corresponding display data Output pin Corresponding display data S1/P1 D1 S5/P5 D17 S2/P2 D5 S6/P6 D21 S3/P3 D9 S7/P7 D25 S4/P4 D13 S8/P8 D29 For example, if the output pin S4/P4 has the general-purpose output port function selected, it will output a high level (VLCD) when the display data D13 is 1, and will output a low level (VSS) when D13 is 0. 2. DR: 1/2 bias drive or 1/3 bias drive switching control data This control data bit selects either 1/2 bias drive or 1/3 bias drive. DR Drive type 0 1/3 bias drive 1 1/2 bias drive 3. SC: Segments on/off control data This control data bit controls the on/off state of the segments. SC Display state 0 On 1 Off However, note that when the segments are turned off by setting SC to 1, the segments are turned off by outputting segment off waveforms from the segment output pins. 4. BU: Normal mode/power-saving mode control data This control data bit selects either normal mode or power-saving mode. BU Mode 0 Normal mode 1 Power saving mode (The OSC pin oscillator is stopped, and the common and segment output pins go to the VSS level. However, the S1/P1 to S8/P8 output pins that are set to be general-purpose output ports by the control data P0 to P3 can be used as generalpurpose output ports.) Page 10 LC75834E, 75834W, 75834JE Display Data to Segment Output Pin Correspondence Segment output pin COM1 COM2 COM3 COM4 Segment output pin COM1 COM2 COM3 COM4 S1/P1 D1 D2 D3 D4 S18 D69 D70 D71 D72 S2/P2 D5 D6 D7 D8 S19 D73 D74 D75 D76 S3/P3 D9 D10 D11 D12 S20 D77 D78 D79 D80 S4/P4 D13 D14 D15 D16 S21 D81 D82 D83 D84 S5/P5 D17 D18 D19 D20 S22 D85 D86 D87 D88 S6/P6 D21 D22 D23 D24 S23 D89 D90 D91 D92 S7/P7 D25 D26 D27 D28 S24 D93 D94 D95 D96 S8/P8 D29 D30 D31 D32 S25 D97 D98 D99 D100 S9 D33 D34 D35 D36 S26 D101 D102 D103 D104 S10 D37 D38 D39 D40 S27 D105 D106 D107 D108 S11 D41 D42 D43 D44 S28 D109 D110 D111 D112 S12 D45 D46 D47 D48 S29 D113 D114 D115 D116 S13 D49 D50 D51 D52 S30 D117 D118 D119 D120 S14 D53 D54 D55 D56 S31 D121 D122 D123 D124 S15 D57 D58 D59 D60 S32 D125 D126 D127 D128 S16 D61 D62 D63 D64 S33 D129 D130 D131 D132 S17 D65 D66 D67 D68 S34 D133 D134 D135 D136 Note: This applies to the case where the S1/P1 to S8/P8 output pins are set to be segment output ports. The LC75834JE do not have the S9, S18, S27, S34 output pins. For example, the table below lists the segment output states for the S11 output pin. Display data D41 D42 D43 D44 Segment output pin (S11) state 0 0 0 0 The LCD segments corresponding to COM1 to COM4 are off. 0 0 0 1 The LCD segment corresponding to COM4 is on. 0 0 1 0 The LCD segment corresponding to COM3 is on. 0 0 1 1 The LCD segments corresponding to COM3 and COM4 are on. 0 1 0 0 The LCD segment corresponding to COM2 is on. 0 1 0 1 The LCD segments corresponding to COM2 and COM4 are on. 0 1 1 0 The LCD segments corresponding to COM2 and COM3 are on. 0 1 1 1 The LCD segments corresponding to COM2, COM3 and COM4 are on. 1 0 0 0 The LCD segment corresponding to COM1 is on. 1 0 0 1 The LCD segments corresponding to COM1 and COM4 are on. 1 0 1 0 The LCD segments corresponding to COM1 and COM3 are on. 1 0 1 1 The LCD segments corresponding to COM1, COM3 and COM4 are on. 1 1 0 0 The LCD segments corresponding to COM1 and COM2 are on. 1 1 0 1 The LCD segments corresponding to COM1, COM2 and COM4 are on. 1 1 1 0 The LCD segments corresponding to COM1 to COM3 are on. 1 1 1 1 The LCD segments corresponding to COM1 to COM4 are on. Page 11 LC75834E, 75834W, 75834JE 1/4 Duty, 1/2 Bias Drive Technique fosc [Hz] 512 COM1 VLCD VLCD1, VLCD2 0V COM2 VLCD VLCD1, VLCD2 0V COM3 VLCD VLCD1, VLCD2 0V COM4 VLCD VLCD1, VLCD2 0V LCD driver output when all LCD segments corresponding to COM1, COM2, COM3, and COM4 are turned off. VLCD VLCD1, VLCD2 0V LCD driver output when only LCD segments corresponding to COM1 are on. VLCD VLCD1, VLCD2 0V LCD driver output when only LCD segments corresponding to COM2 are on. VLCD VLCD1, VLCD2 0V LCD driver output when LCD segments corresponding to COM1 and COM2 are on. VLCD VLCD1, VLCD2 0V LCD driver output when only LCD segments corresponding to COM3 are on. VLCD VLCD1, VLCD2 0V LCD driver output when LCD segments corresponding to COM1 and COM3 are on. VLCD VLCD1, VLCD2 0V LCD driver output when LCD segments corresponding to COM2 and COM3 are on. VLCD VLCD1, VLCD2 0V LCD driver output when LCD segments corresponding to COM1, COM2, and COM3 are on. VLCD VLCD1, VLCD2 0V LCD driver output when only LCD segments corresponding to COM4 are on. VLCD VLCD1, VLCD2 0V LCD driver output when LCD segments corresponding to COM2 and COM4 are on. VLCD VLCD1, VLCD2 0V LCD driver output when all LCD segments corresponding to COM1, COM2, COM3, and COM4 are on. VLCD VLCD1, VLCD2 0V 1/4 Duty, 1/2 Bias Waveforms Page 12 LC75834E, 75834W, 75834JE 1/4 Duty, 1/3 Bias Drive Technique fosc [Hz] 512 VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V VLCD VLCD1 VLCD2 0V COM1 COM2 COM3 COM4 LCD driver output when all LCD segments corresponding to COM1, COM2, COM3, and COM4 are turned off. LCD driver output when only LCD segments corresponding to COM1 are on. LCD driver output when only LCD segments corresponding to COM2 are on. LCD driver output when LCD segments corresponding to COM1 and COM2 are on. LCD driver output when only LCD segments corresponding to COM3 are on. LCD driver output when LCD segments corresponding to COM1 and COM3 are on. LCD driver output when LCD segments corresponding to COM2 and COM3 are on. LCD driver output when LCD segments corresponding to COM1, COM2, and COM3 are on. LCD driver output when only LCD segments corresponding to COM4 are on. LCD driver output when LCD segments corresponding to COM2 and COM4 are on. LCD driver output when all LCD segments corresponding to COM1, COM2, COM3, and COM4 are on. 1/4 Duty, 1/3 Bias Waveforms Page 13 LC75834E, 75834W, 75834JE The INH pin and Display Control Since the IC internal data (the display data and the control data) is undefined when power is first applied, applications should set the INH pin low at the same time as power is applied to turn off the display (LC75834E, LC75834W: This sets the S1/P1 to S8/P8, S9 to S34, and COM1 to COM4 to the VSS level. LC75834JE: This sets the S1/P1 to S8/P8, S10 to S17, S19 to S26, S28 to S33, and COM1 to COM4 to the VSS level.) and during this period send serial data from the controller. The controller should then set the INH pin high after the data transfer has completed. This procedure prevents meaningless displays at power on. (See Figure 3.) Notes on the Power On/Off Sequences Applications should observe the following sequence when turning the LC75834E, LC75834W, and LC75834JE power on and off. • At power on: Logic block power supply (VDD) on → LCD driver block power supply (VLCD) on • At power off: LCD driver block power supply (VLCD) off → Logic block power supply (VDD) off However, if the logic and LCD driver block use a shared power supply, then the power supplies can be turned on and off at the same time. t2 t1 t3 VDD VLCD INH tc CE Internal data D1 to D36 P0 to P3 DR, SC, BU VIL VIL Display and control data transfer Undefined Defined Undefined Internal data (D37 to D72) Undefined Defined Undefined Internal data (D73 to D108) Undefined Defined Undefined Internal data (D109 to D136) Undefined Defined Undefined Note: t1 ≥ 0 t2 > 0 t3 ≥ 0 (t2 > t3) tc ...... 10 µs min Note: At the LC75834JE, the display data D33 to D36, D69 to D72, D105 to D108, D133 to D136 must be set to 0. Figure 3 Notes on Controller Transfer of Display Data Since the LC75834E, LC75834W, and LC75834JE accept display data divided into four separate transfer operations, we recommend that applications transfer all of the display data within a period of less than 30 ms to prevent observable degradation of display quality. Page 14 LC75834E, 75834W, 75834JE Sample Application Circuit 1 1/2 Bias (for use with normal panels) • LC75834E, LC75834W (P1) (P2) *2 VDD OSC VSS +5 V VLCD COM1 COM2 COM3 COM4 P1/S1 P2/S2 VLCD1 C ≥ 0.047 µF C P8/S8 S9 VLCD2 INH CE CL DI From the microcontroller Used for functions such as backlight control LCD panel (up to 136 segments) +3 V (P8) General-purpose output ports S32 S33 S34 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. • LC75834JE *2 +3 V VDD VSS +5 V VLCD VLCD1 C ≥ 0.047 µF From the microcontroller C OSC COM1 COM2 COM3 COM4 P1/S1 P2/S2 P8/S8 S10 VLCD2 INH CE CL DI S17 S19 S26 S28 (P8) General-purpose output ports Used for functions such as backlight control LCD panel (up to 120 segments) (P1) (P2) S33 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. Page 15 LC75834E, 75834W, 75834JE Sample Application Circuit 2 1/2 Bias (for use with large panels) • LC75834E, LC75834W (P1) (P2) *2 VDD OSC VSS +5 V VLCD R 10 kΩ ≥ R ≥ 1 kΩ C ≥ 0.047 µF C R VLCD1 P8/S8 S9 VLCD2 INH CE CL DI From the microcontroller COM1 COM2 COM3 COM4 P1/S1 P2/S2 Used for functions such as backlight control LCD panel (up to 136 segments) +3 V (P8) General-purpose output ports S32 S33 S34 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. • LC75834JE *2 +3 V VDD VSS +5 V VLCD R 10 kΩ ≥ R ≥ 1 kΩ C ≥ 0.047 µF From the microcontroller C R VLCD1 OSC COM1 COM2 COM3 COM4 P1/S1 P2/S2 P8/S8 S10 VLCD2 INH CE CL DI S17 S19 S26 S28 (P8) General-purpose output ports Used for functions such as backlight control LCD panel (up to 120 segments) (P1) (P2) S33 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. Page 16 LC75834E, 75834W, 75834JE Sample Application Circuit 3 1/3 Bias (for use with normal panels) • LC75834E, LC75834W (P1) (P2) *2 VDD OSC VSS +5 V VLCD COM1 COM2 COM3 COM4 P1/S1 P2/S2 VLCD1 C ≥ 0.047 µF C C P8/S8 S9 VLCD2 INH CE CL DI From the microcontroller Used for functions such as backlight control LCD panel (up to 136 segments) +3 V (P8) General-purpose output ports S32 S33 S34 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. • LC75834JE *2 +3 V VDD VSS +5 V VLCD VLCD1 C ≥ 0.047 µF From the microcontroller C C OSC COM1 COM2 COM3 COM4 P1/S1 P2/S2 P8/S8 S10 VLCD2 INH CE CL DI S17 S19 S26 S28 (P8) General-purpose output ports Used for functions such as backlight control LCD panel (up to 120 segments) (P1) (P2) S33 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. Page 17 LC75834E, 75834W, 75834JE Sample Application Circuit 4 1/3 Bias (for use with large panels) • LC75834E, LC75834W (P1) (P2) *2 VDD OSC VSS +5 V VLCD COM1 COM2 COM3 COM4 P1/S1 P2/S2 R VLCD1 10 kΩ ≥ R ≥ 1 kΩ C ≥ 0.047 µF R C C R P8/S8 S9 VLCD2 INH CE CL DI From the microcontroller Used for functions such as backlight control LCD panel (up to 136 segments) +3 V (P8) General-purpose output ports S32 S33 S34 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. (P1) (P2) *2 +3 V VDD VSS +5 V VLCD OSC COM1 COM2 COM3 COM4 P1/S1 P2/S2 R VLCD1 10 kΩ ≥ R ≥ 1 kΩ C ≥ 0.047 µF From the microcontroller R C C R P8/S8 S10 VLCD2 INH CE CL DI S17 S19 S26 S28 (P8) General-purpose output ports Used for functions such as backlight control LCD panel (up to 120 segments) • LC75834JE S33 Note: *2 When a capacitor except the recommended external capacitance (COSC = 680 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. Page 18 LC75834E, LC75834W, LC75834JE Package Dimensions unit : mm [LC75834E] PQFP48 14x14 / QIP48E CASE 122BL ISSUE A 0.80.2 17.20.2 17.20.2 48 14.00.1 14.00.1 1 2 1.0 0.35 (2.7) (1.5) 0 to 10 0.10.1 3.0 MAX 0.15 0.15 0.10 GENERIC MARKING DIAGRAM* SOLDERING FOOTPRINT* 16.30 XXXXXXXX YMDDD 16.30 (Unit: mm) XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data 1.00 0.50 1.30 *This information is generic. Please refer to device data sheet for actual part marking. NOTE: The measurements are not to guarantee but for reference only. *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 19 LC75834E, LC75834W, LC75834JE Package Dimensions unit : mm [LC75834W] SPQFP48 7x7 / SQFP48 CASE 131AJ ISSUE A 0.50.2 9.00.2 9.00.2 48 7.00.1 7.00.1 1 2 0.5 0.150.05 0.18 0.10 (1.5) 0 to 10 0.10.1 1.7 MAX (0.75) 0.10 SOLDERING FOOTPRINT* GENERIC MARKING DIAGRAM* 8.40 XXXXXXXX YDD 8.40 (Unit: mm) XXXXX = Specific Device Code Y = Year DD = Additional Traceability Data XXXXXXXX YMDDD XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data 0.50 0.28 1.00 *This information is generic. Please refer to device data sheet for actual part marking. NOTE: The measurements are not to guarantee but for reference only. *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 20 LC75834E, LC75834W, LC75834JE Package Dimensions unit : mm [LC75834JE] PQFP44 10x10 / QIP44M CASE 122BK ISSUE A 1.00.2 13.20.2 13.20.2 44 10.0 10.0 1 2 0.8 0.35 (2.5) 0 to 10 0.10.1 2.8 MAX 0.2 0.15 (1.0) 0.10 SOLDERING FOOTPRINT* GENERIC MARKING DIAGRAM* 12.10 XXXXXXXX YDD 12.10 (Unit: mm) XXXXX = Specific Device Code Y = Year DD = Additional Traceability Data XXXXXXXX YMDDD XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data 0.80 0.52 1.50 *This information is generic. Please refer to device data sheet for actual part marking. NOTE: The measurements are not to guarantee but for reference only. *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 21 LC75834E, LC75834W, LC75834JE ORDERING INFORMATION Device Package Shipping (Qty / Packing) LC75834E-E PQFP48 14x14 / QIP48E (Pb-Free) 300 / Tray Foam LC75834W-E SPQFP48 7x7 / SQFP48 (Pb-Free) 1250 / Tray JEDEC LC75834JE-E PQFP44 10x10 / QIP44M (Pb-Free) - ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. 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