LC75847T-E ON Semiconductor, LC75847T-E Datasheet
LC75847T-E
Specifications of LC75847T-E
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LC75847T-E Summary of contents
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... The LC75847T is 1/3 duty and 1/4 duty general-purpose LCD driver that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75847T can drive an LCD with up to 420 segments directly. The LC75847T can also control general-purpose output ports. Features • ...
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... Recommended external capacitance Guaranteed oscillation range Data setup time Data hold time CE wait time CE setup time CE hold time High level clock pulse width Low level clock pulse width Rise time Fall time INH switching time LC75847T = Symbol Conditions 0. ...
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... I 3 LCD I 4 LCD I 5 LCD Note: *1 Excluding the bias voltage generation divider resistors built in the V VLCD VLCD0 VLCD1 VLCD2 VSS LC75847T Conditions CE, CL, DI, INH CE, CL, DI, INH 6 CE, CL, DI, INH S106 –20 µA O COM1 to COM4 –100 µ P8 – ...
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... When CL is stopped at the high level CE tø tds Block Diagram COMMON DRIVER CLOCK OSC GENERATOR VDD VLCD CONTRAST ADJUSTER VLCD0 VLCD1 VLCD2 VSS LC75847T VIH tøL tf tcp tcs VIH tøH VIH 50% VIL tr tcp tcs VIH VIL tdh Figure 2 SEGMENT DRIVER & LATCH tch tch ...
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... LCD driver block power supply. When V V 111 supply a voltage in the range 4.0 to 6.0 V. When V LCD a voltage in the range 2 Ground pin. Connect to ground. 115 SS LC75847T Function Hz ....Off S1/P1 to S8/P8 = low ( (These pins are forcibly set to the segment output port function and fixed at the V level ...
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... S102 S103 S104 S105 S106/COM4 COM3 COM2 COM1 VDD VLCD VLCD0 VLCD1 VLCD2 VSS OSC INH 120 1 LC75847T LC75847T (TQFP120 S60 S59 S58 S57 S56 S55 S54 S53 S52 S51 S50 S49 S48 S47 S46 S45 S44 S43 S42 ...
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... CCB address Display data 8 bits Note: DD···Direction data. LC75847T D104 D105 D106 D107 D108 Display data 108 bits D212 D213 105 bits ...
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... DT .....................1/3 duty drive or 1/4 duty drive switching control data • FC......................Common and segment output waveforms frame frequency setting control data • SC......................Segments on/off control data • BU .....................Normal mode/power-saving mode control data LC75847T D104 D105 D106 D107 D108 Display data ...
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... D317 CCB address Display data 8 bits 104 bits Note: DD···Direction data. LC75847T D104 D105 D106 D107 D108 Display data 108 bits D212 Fixed data ...
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... DT .....................1/3 duty drive or 1/4 duty drive switching control data • FC......................Common and segment output waveforms frame frequency setting control data • SC......................Segments on/off control data • BU .....................Normal mode/power-saving mode control data LC75847T D104 D105 D106 D107 D108 Display data ...
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... Either 128, 256 or 384 bits of serial data may be sent, depending on the number of segments used. However, the serial data shown below (the D1 to D108 display data and the control data) must be sent. 8 bits LC75847T 128 bits D104 D105 D106 D107 D108 D212 D213 ...
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... Note that although the display contrast can be adjusted by operating the built-in display contrast adjustment circuit also possible to adjust the contrast by varying the voltage level on the LCD drive block power supply V However must always be greater than or equal to 2.7 V. LCD LC75847T Output pin state S1/P1 S2/P2 S3/P3 ...
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... Power saving mode (The OSC pin oscillator is stopped, and the common and segment output pins go to the V 1 the S1/P1 to S8/P8 output pins that are set to be general-purpose output ports by the control data can be used as general-purpose output ports.) LC75847T Output pin state (COM4/S106) COM4 S106 ...
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... D32 D33 LC75847T Segment COM1 COM2 Output pin S37 D109 D110 S38 D112 D113 S39 D115 D116 S40 D118 D119 S41 D121 D122 S42 D124 D125 S43 D127 D128 ...
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... D194 S50 D197 D198 S51 D201 D202 S52 D205 D206 S53 D209 D210 Note: This applies to the case where the S1/P1 to S8/P8 output pins are set to be segment output ports. LC75847T Segment COM3 COM4 Output pin D3 D4 S54 D7 D8 S55 D11 D12 S56 ...
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... LC75847T Segment output pin (S11) state D44 0 The LCD segments corresponding to COM1, COM2, COM3, and COM4 are off. 1 The LCD segment corresponding to COM4 is on. 0 The LCD segment corresponding to COM3 is on. 1 The LCD segments corresponding to COM3 and COM4 are on. ...
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... 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 all LCD segments corresponding to COM1, COM2, and COM3 are on. LC75847T fo[Hz] fosc When the control data 384 ...
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... COM1 and COM3 are on. LCD driver output when LCD segments corresponding to COM2 and COM3 are on. LCD driver output when all LCD segments corresponding to COM1, COM2, and COM3 are on. LC75847T fo[Hz] When the control data When the control data ...
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... 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. LC75847T fo[Hz] When the control data When the control data ...
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... 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. LC75847T fo[Hz] When the control data When the control data VLCD0 VLCD1 ...
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... INH pin high after the data transfer has completed. This procedure prevents meaningless displays at power on. (See Figures 3 and 4.) Notes on the Power On/Off Sequences Applications should observe the following sequences when turning the LC75847T power on and off. • At power on: Logic block power supply (V • At power off: LCD driver block power supply (V 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 ...
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... Internal data (D317 to D420) Notes on Controller Transfer of Display Data Since the LC75847T accepts the display data (D1 to D318) divided into three separate transfer operations when using 1/3 duty drive scheme and the data (D1 to D420) divided into four separate transfer operations when 1/4 duty drive, we recommend that applications transfer all of the display data within a period of less than prevent observable degradation of display quality ...
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... C C 0.047 F From the controller Note: *2 When a capacitor except the recommended external capacitance (Cosc = 1000 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. LC75847T OSC VDD VSS VLCD Open VLCD0 VLCD1 ...
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... C 0.047 From the controller Note: *2 When a capacitor except the recommended external capacitance (Cosc = 1000 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. LC75847T *2 OSC VDD COM1 COM2 VSS COM3 P1/S1 ...
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... C C 0.047 F From the controller Note: *2 When a capacitor except the recommended external capacitance (Cosc = 1000 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. LC75847T OSC VDD VSS S106/COM4 VLCD Open VLCD0 ...
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... C 0.047 From the controller Note: *2 When a capacitor except the recommended external capacitance (Cosc = 1000 pF) is connected the OSC pin, we recommend that applications connect the OSC pin with a capacitor in the range 220 to 2200 pF. LC75847T *2 OSC VDD COM1 COM2 VSS COM3 S106/COM4 ...
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Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as ...