IT7020C/CY Durable High-Voltage 240-Channel Common Driver for Dot-Matrix STN LCD Preliminary Specification V0.7 INTEGRATED TECHNOLOGY EXPRESS, INC. Specification subject to Change without notice, AS IS and for reference only. For purchasing, please contact sales representatives. Copyright 2003 ITE, Inc. This is Preliminary document release. All specifications are subject to change without notice. The material contained in this document supersedes all previous documentation issued for the related products included herein. Please contact ITE, Inc. for the latest document(s). All sales are subject to ITE’s Standard Terms and Conditions, a copy of which is included in the back of this document. ITE, IT7020C/CY is a trademark of ITE, Inc. All other trademarks are claimed by their respective owners. All specifications are subject to change without notice. Additional copies of this manual or other ITE literature may be obtained from: ITE, Inc. Marketing Department 8F, No. 233-1, Bao Chiao RD., Hsin Tien, Taipei County 231, Taiwan, R.O.C. Phone: Fax: (02) 29126889 (02) 2910-2551, 2910-2552 ITE (USA) Inc. Marketing Department 1235 Midas Way Sunnyvale, CA 94086 U.S.A. Phone: Fax: (408) 530-8860 (408) 530-8861 ITE (USA) Inc. Eastern U.S.A. Sales Office 896 Summit St., #105 Round Rock, TX 78664 U.S.A. Phone: Fax: (512) 388-7880 (512) 388-3108 If you have any marketing or sales questions, please contact: Lawrence Liu, at ITE Taiwan: E-mail: [email protected], Tel: 886-2-26579896 X6071, Fax: 886-2-26578561 David Lin, at ITE U.S.A: E-mail: [email protected], Tel: (408) 530-8860 X238, Fax: (408) 530-8861 Don Gardenhire, at ITE Eastern USA Office: E-mail: [email protected] Tel: (512) 388-7880, Fax: (512) 388-3108 To find out more about ITE, visit our World Wide Web at: http://www.ite.com.tw http://www.iteusa.com Or e-mail [email protected] for more product information/services. Revision History Revision History Section Revision IT7020C/H was changed into IT7020C/CY in this version. Section 4.2 “Chip Form Package (349 bumps)” of version 0.6 was deleted. 10 The figures in section10 were revised. 25, 26 11 The ordering information was revised. 27 - www.ite.com.tw 1 Page No. - IT7020C/CY V0.7 Contents CONTENTS 1. Features ...................................................................................................................................................1 2. General Description ..................................................................................................................................3 3. Block Diagram ..........................................................................................................................................5 4. Pin Configuration ......................................................................................................................................7 5. IT7020C/CY Pin Descriptions....................................................................................................................9 6. System Configuration .............................................................................................................................13 6.1 Overview ....................................................................................................................................13 6.2 LCD Drive Circuit........................................................................................................................13 6.3 Shift Register Circuit ...................................................................................................................13 6.4 Alternating Signal (M) Generation Circuit ....................................................................................13 7. Terminal Configuration............................................................................................................................15 8. DC Electrical Characteristics...................................................................................................................17 8.1 Activation and Inactivation Sequence..........................................................................................17 8.1.1 Power On Sequence ........................................................................................................18 8.1.2 Power Down Sequence ....................................................................................................18 1.1 DC..............................................................................................................................................20 8.2 Electrical Characteristics (Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C) .............................................................................................................................................20 9. AC Characteristics ..................................................................................................................................23 9.1 AC Characteristics 1 (Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C) ...................................................................................................................................................23 9.2 AC Characteristics 2 (Vcc = 2.5 to 4.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C)....23 9.3 AC Characteristics 3 (Vcc = 4.5 to 5.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C)....23 10. Package Information...............................................................................................................................25 11. Ordering Information...............................................................................................................................27 FIGURES Figure 4-1. 273-pin TCP.................................................................................................................................7 Figure 5-1. DOC Waveform..........................................................................................................................12 Figure 5-2. LCD Driver Terminal Output Voltage Level .................................................................................12 Figure 7-1. IT7020 Power and Input Terminal Configuration .........................................................................15 Figure 7-2. IT7020 I/O, Input and Output Terminal Configuration..................................................................16 Figure 8-1. IT7020 Power On/Down Scenario ..............................................................................................19 Figure 8-32. LCD Common Drive Output Waveform & Voltage Level............................................................21 Figure 9-1. AC Characteristics Testing Configuration ...................................................................................24 Figure 9-2. IT7020 Timing Diagram ..............................................................................................................24 www.ite.com.tw i IT7020C/CY V0.7 IT7020C/CY TABLES Table 5-1. Pin Descriptions of Power Signals .................................................................................................9 Table 5-2. Pin Descriptions of Control Signals ................................................................................................9 Table 5-3. Pin Descriptions of LCD Drive Output Signals..............................................................................11 Table 8-1. DC Characteristics (Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C)20 Table 9-1. AC Characteristics 1(Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C)23 Table 9-2. AC Characteristics 2 (Vcc = 2.5 to 4.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C).....23 Table 9-3. AC Characteristics 3 (Vcc = 4.5 to 5.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C).....23 www.ite.com.tw ii IT7020C/CY V0.7 Features 1. Features Supports up to 1/240 display duty Supports 43V LCD drive voltage at maximum Supports 2.5 to 5.5V operating voltage Provides 240 LCD drive circuit Provides built-in power circuit for generating –21.5 V Provides the intermediate voltage interface Provides 3 selections of output modes: - 240-output mode - 200-output mode - 160-output mode Built-in alternating signal generation circuit (programmable through the MWS0 – MWS4 pins) is provided to restrain crosstalk Supports the display-off function Package - 273-pin Flex TCP www.ite.com.tw Specifications Subject to Change without Notice 1 IT7020C/CY V0.1 By Dean Hu, 1/14/2003 ITPM-PN-200301 www.ite.com.tw 2 IT7020C/CY V0.7 General Description 2. General Description The IT7020C/CY features a high-voltage common driver, which consists of 240 channels. The IT7020C/CY can drive a dot matrix STN LCD panel, and has been designed specifically to meet the LCD requirement in PDA devices. It can be used in conjunction with the segment drivers: IT7010C/H or IT7012C/H. In terms of power consumption, the device is able to reduce the required voltage level and power consumption considerably. Additionally, the built-in screen display off function supported in the device can also help to reduce the overall power consumption while the LCD panel is not actively in use. In logic portion, the IT7020C/CY operates with a low 3V logic drive voltage to help reduce power consumption. The device can generate a high voltage drive of +21.5V and –21.5V through a 43V high voltage CMOS process technology. By the built-in power circuit and external capacity, the generation of –21.5V will occur from +21.5V. In addition, users are allowed the selection of 240-, 200- and 160-channel output mode by conveniently changing the mode according to what panel resolution they have. Moreover, ITE also provides users with complete local technical support. The company is dedicated to assisting customers in procuring multiple competitive edges, such as reducing development time, cost effectiveness and low power consumption for expanding the STN-LCD market share in a fast move. ITE is committed to launching the LCD driver and controller series products, and will offer the most competitive solution through high integration and solid R&D expertise. www.ite.com.tw 3 IT7020C/CY V0.7 www.ite.com.tw 4 IT7020C/CY V0.7 Block Diagram 3. Block Diagram X1-X240 *2 VHL VLL VML VHR VLR VMR LC D Drive C ircuit *1 VLCDL/R Le ve l S hifte r Le ve l S hifte r VEEL/R S hift re gis te r S hift re gis te r S hift re g is te r S hift re gis te r D SR 21 D SR 41 D SR 201 D SR 221 D Q ~ D ~ DIS P OFF Q SR 240 Q Logic ~ Q Q SR 220 Logic ~ Q Q SR 200 Logic ~ Q S4R 0 D M_S D Logic Logic Q Q S2R 0 D Logic S hift re gis te r D SR 1 Logic M MWS 0 to MWS 4 RE S E T Alte rna ting s igna l ge ne ra tion circuit Logic CL VEO CCL AMP C1 C2 DIO1 DIO2 S HL MODE0 MODE1 P owe r C ircuit DOC VCC G ND *1. VLCDL a nd VLCDR, a nd VE EL a nd VEER a re inte rna lly conne cte d. *2. VHL a nd VHR , VLL, VML a nd VMR a re inte rna lly conne cte d. www.ite.com.tw 5 IT7020C/CY V0.7 www.ite.com.tw 6 IT7020C/CY V0.7 VLCDL VHL VML VLL VEEL VEO C1 C2 DIO2 M RESET MWS4 MWS3 MWS2 MWS1 MWS0 VCC MODE1 MODE0 DOC DISPOFF AMP SHL GND CL CCL M_S DIO1 VEER VLR VMR VHR VLCDR 273 272 271 270 269 268 267 266 265 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 www.ite.com.tw 236 237 238 239 240 1 2 3 4 5 X236 X237 X238 X239 X240 X1 X2 X3 X4 X5 Pin Configuration 4. Pin Configuration Top View Note: The shape above does not indicate the actual outline. Figure 4-1. 273-pin TCP 7 IT7020C/CY V0.7 www.ite.com.tw 8 IT7020C/CY V0.7 IT7020C/CY Pin Descriptions 5. IT7020C/CY Pin Descriptions Table 5-1. Pin Descriptions of Power Signals Pin(s) No. 267, 266 273, 241 269, 245 257, 250 272, 242 270, 244 271, 243 Symbol C1, C2 VLCDL/R VEEL/R Vcc, GND VHL/R VLL/R VML/R Attribute - - Description Connect the external capacitance here when the power circuit is enabled for VEE generation. It is advisable that users should not connect any traces to these pins if the built-in power circuit is not used. VLCDL/R and VEEL/R are used to provide the power supply for the usage of LCD drive. VEEL/R are used to provide the power supply for the usage of power circuits. Input Vcc, GND are used to provide the power supply for the usage of logic circuits. These pins are used to provide the power supply for LCD drive level. VHL/R and VLL/R indicate the selected level of LCD drive. Note that VHL/R is set to the same voltage as VLCDL/R while VLL/R is set to the same voltage as VEEL/R. VML/R indicates the non-selected LCD drive level. It provides the power supply for the built-in power circuits as well. 268 VEO Output Connect VEO pin to the VEEL/R pins when the built-in power circuit is enabled to generate VEE voltage. In this case, the VM voltage is used as the point of reference and the output voltage of VEO is equal to (2*VM – VLCD). Users are advised not to connect any lines to this pin if the built-in power circuit is not used. Table 5-2. Pin Descriptions of Control Signals Pin(s) No. 252 Symbol AMP Attribute Input 248 CCL Input 249 CL Input Description This signal is used to control the on and off states the built-in power circuit. When the circuit is used, this pin must be tied to Vcc. When the built-in power circuit is not used, this pin must be tied to GND. Indicates the built-in power circuit clock input. When the built-in power circuit is enabled and VEE is generated, this pin is connected to the CL pin. When the built-in power circuit is not used, CCL must be tied to GND. Shift Clock Input. Data is shifted and latched at the falling edge of CL in the shift register. 246 265 DIO1 DIO2 Input/ Output 253 DISPOFF Input www.ite.com.tw Serial Data Input/Output Pin. When the SHL is high, the DIO1 is the serial output pin and DIO2 is the serial input pin. When the SHL is low, the DIO1 is the serial input pin and DIO2 is the serial output pin. Set LCD drive outputs of X1 to X240 to the VM level by connecting this pin to GND. 9 IT7020C/CY V0.7 IT7020C/CY Table 5-2. Pin Descriptions of Control Signals [cont’d] Pin(s) No. 254 Symbol DOC 264 247 M M_S 255 256 MODE0 MODE1 Attribute Output Description When the M_S pin is set to high level, the output level of DOC pin is the same as the DISPOFF pin. When the M_S pin is set to low level, DOC pin outputs low level until serial data input 16 times. See Figure 5-1 for more details. Note that when M_S is set to low level, the DOC pin should be connected to IT7010C DOF_N control pin. Input/Output Input or output the toggling waveform for LCD drive output level. Input Control the LCD display-off function and determine the LCD display-off signal to output from DOC pin. When the M_S is set to high level and the DISPOFF is low level, X1-X240 pins will set to the VM level. When the M_S is set to low level, the X1-X240 pins will stay on the VM level until serial data input 16 times (See Figure 5-1). Input Input terminals for specifying the effective number of LCD drive output pins. MODE0 MODE1 Shift Direction “H” “H” “L” “L” 258 259 260 261 262 MWS0 MWS1 MWS2 MWS3 MWS4 Input “H” “L” “H” “L” 240-output (X1, X2, X3…X238, X239, X240) 200-output (X21, X22, X23…X218, X219, X220) 160-output (X41, X42, X43…X198, X199, X200) Undefined. Use at your own risk! These pins are used to specify the frequency of the toggling signal (M signal) in the unit of number of display lines. The number of display lines is an integer ranging from 2 to 31 and is specified in the table below. Typically, the number of display lines ranges from 10 to 31. If IT7020 is configured in the slave mode, i.e., driven by an external M signal, MWS0 – MWS4 should be tied to low level. Number MWS MWS MWS MWS MWS Line toggling M-pin of lines 4 3 2 1 0 waveform status 0 0 0 0 0 0 Input 1 0 0 0 0 1 Prohibited Output 2 0 0 0 1 0 2 lines alternated 3 0 0 0 1 1 3 lines alternated 263 RESET Input 251 SHL Input : : : : : : : 31 1 1 1 1 1 31 lines alternated Initialize the toggling signal (M signal) circuit by connecting this pin to GND. Tied to Vcc for normal operation. This pin is used to switch the shift directions. SHL MODE0 MODE1 “H” level “H” “H” “L” “H” “L” “H” Shift Direction Right shift DIO2→SR1…SR240→DIO1 DIO2→SR21…SR220→DIO1 DIO2→SR41…SR200→DIO1 Left shift “H” “H” DIO1→SR240…SR1→DIO2 “H” “L” DIO1→SR220…SR21→DIO2 “L” “H” DIO1→SR200…SR41→DIO2 SR1, SR2…SR240 are the outputs of the shift registers and correspond to X1, X2…X240. “L” level Note: The 40 or 80 pins, which are invalidated at the 200 or 160-output mode, will output the non-selected level (VM). www.ite.com.tw 10 IT7020C/CY V0.7 IT7020C/CY Pin Descriptions Table 5-3. Pin Descriptions of LCD Drive Output Signals Pin(s) No. 1 to 240 Symbol X1 to X240 Attribute Output Description LCD Drive Output. When DISPOFF is set to Vcc, the output level of X1 – X240 are determined by the combination of the display data and the M signal. Either one of VH, VL, or VM is selected and then transmitted to the output circuit. See Figure 5-2 for more details. www.ite.com.tw 11 IT7020C/CY V0.7 IT7020C/CY DISPOFF 1 2 3 4 5 14 15 16 DIO1/2 DOC Figure 5-1. DOC Waveform D Output level 0 1 M 1 0 1 0 VL VM VH VM Figure 5-2. LCD Driver Terminal Output Voltage Level www.ite.com.tw 12 IT7020C/CY V0.7 System Configuration 6. System Configuration 6.1 Overview The IT7020 is composed of 4 main elements to work properly: LCD Drive Circuits, Level Shifter, Shift Register Circuit, and Alternating Signal Generation Circuits. The functional descriptions for each of the 4 elements are described below: 6.2 LCD Drive Circuit The device consists of 240 LCD drive circuits, and each of the LCD drive circuit is responsible to select and output the three level signals for the LCD drive. Either one of VH, VL and VM will be selected and transmitted to the output circuit by combining the data in the shift register and M signal together. The level shifter is responsible for boosting a logic voltage to the high for LCD drive. 6.3 Shift Register Circuit The shift register circuit is made up of 240 bits and is bi-directional. The first line marker signal, coming from either DIO1 or DIO2 pins, can be sequentially shifted through the shift register circuit via the shift clock. The first line marker signal can be then sequentially shifted via the shift clock CL. The shifting direction is determined by SHL pin. 6.4 Alternating Signal (M) Generation Circuit The alternating Signal Generation circuit is used to generate an alternating signal (M signal) for proper LCD display. To restrain the crosstalk function, the signal is alternated from several lines to a host of lines. If pins MWS0 to MWS4 are connected to Vcc or GND, the intended number of signals can be alternated. Note that the connection of pins MWS0 to MWS4 with GND can be done when the alternating signals are input externally. www.ite.com.tw 13 IT7020C/CY V0.7 www.ite.com.tw 14 IT7020C/CY V0.7 Terminal Configuration 7. Terminal Configuration VLCD I VLCD VM I VH VEE VEE Power Terminal 1 Applicable terminal: VMR/L * VMR terminal is connected with V ML terminal in LSI. Input Terminal 1 Applicable terminal: V HR/L * VHR terminal is connected with V HL terminal in LSI. VLCD I VL VEE Input Terminal 2 Applicable terminal: V LR/L * VLR terminal is connected with V LL terminal in LSI. Figure 7-1. IT7020 Power and Input Terminal Configuration www.ite.com.tw 15 IT7020C/CY V0.7 IT7020C/CY Vcc Input Da ta Vcc GND Da ta Output e na ble GND I/O Te rmina l 1 Applica ble te rmina ls : DIO1, DIO2, M VLC D Cha rge P ump I/O VLC D VH VEE VL VM VLC D O VEE VE E I/O Te rm ina l 2 Applica ble te rm ina l: C 1,C 2 VM LCD Drive Output Te rmina l Applica ble te rmina ls : X1 to X240 Vcc Vcc Input Da ta I O GND Input Te rm ina l Applica ble te rmina ls : CL, CCL, S HL, MODE0, 1, AMP , DIS P OFF, R ES ET, MWS 0~4, M_S Output Te rmina l Applica ble te rm ina l: DOC Figure 7-2. IT7020 I/O, Input and Output Terminal Configuration www.ite.com.tw 16 IT7020C/CY V0.7 DC Electrical Characteristics 8. DC Electrical Characteristics Absolute Maximum Ratings *Comments: Power Supply (Vcc) ......................... -0.3 to +7.0V Power Supply (VLCD) .................... -0.3 to +25.0V Power Supply (VEE) ....................... -23.0 to +0.3V Input Voltage (1) (VT1)................. -0.3 to Vcc +0.3 Input Voltage (2) (VH) ...................... -0.3 to VLCD Input Voltage (3) (VL)......................... -0.3 to VEE Input Voltage (4) (VM)...................... -0.3 to +5.0V Operating temperature (Topr)............ -25 to +75°C Storage temperature (Tetg)..............-55 to +110°C Stresses above those listed under ″Absolute Maximum Ratings″ may cause permanent damage to this device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied or intended. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability. Parameter Symbol Ratings Unit Notes Vcc -0.3 to + 7.0 V 1, 8 VLCD -0.3 to + 25.0 V 1, 3, 8 VEE -23.0 to + 0.3 V 1, 4, 8 Input voltage (1) VT1 -0.3 to Vcc + 0.3 V 1, 2 Input voltage (2) VH -0.3 to VLCD V 1, 5, 8 Input voltage (3) VL -0.3 to VEE V 1, 6, 8 Input voltage (4) VM -0.3 to + 5.0 V 1, 7, 8 Operating temperature Topr -25 to + 75 °C - Storage temperature Tetg -55 to + 110 °C - Power supply voltage Logic circuit LCD drive circuit Notes: 1. Indicates the voltage from GND. 2. The input voltage (1) is applicable to DIO1, DISPOFF, SHL, M, MWS0-MWS4, RESET, MODE0, MODE1, CL, M_S, AMP, CCL, and DIO2. 3. The power supply voltage for LCD drive circuits can be applied to VLCDL/R pins. 4. The power supply voltage for LCD drive circuits can be applied to VEE/R pins. 5. The input voltage (2) is applied to VHL/R pins. 6. The input voltage (3) is applied to VLL/R pins. 7. The input voltage (4) is applied to VML/R pins. 8. See section 8.1 for details. 8.1 Activation and Inactivation Sequence Make sure to follow activation and inactivation sequence for power supplies and signals as illustrated in the Figure 8-1. This sequence is applied to the built-in power circuit. It is recommended that users must follow the sequence correctly; otherwise, the device malfunction, permanent damage, or undesired effects may occur. www.ite.com.tw 17 IT7020C/CY V0.7 IT7020C/CY 8.1.1 Power On Sequence 1. Power on the power supply in the order listed below: Power On order: GND-Vcc, GND-VLCD (VH), and VM. VM-VEE is generated automatically. Input GND power to the DISPOFF pin. 2. The LCD level is forced to output the VM level through the DISPOFF function. 3. The DISPOFF function has a higher priority even if the input signal distortion occurs instantly after Vcc input. 4. Then input the preset signals to get the driver registers initialized. In this case, make sure a period that lasts more than one frame is reserved. 5. The preceding work for normal display is completed here. At this point, users should cancel the DISPOFF function by setting the DISPOFF pin to Vcc. The voltage levels of VEE (VL), VLCD (VH) and VM must have reached the preset voltage respectively. 8.1.2 Power Down Sequence Shut down the power in an opposite order described for power on sequence on the last page. 1. Firstly, the DISPOFF pin should be set to GND. 2. Secondly, the LCD power supply of GND-VLCD (VH) should be turned off. At the same time, GND-VEE (VL) gets to VM. Shut off the VM next. 3. Vcc should be set, and the input signal should be set to GND. 4. At this moment, the inputs of pins VEE (VL), VLCD (VH) and VM must go down to 0 V completely. In addition, an incorrect display may occur at power down or power on. This is because the function of DISPOFF is inactivated when the Vcc level goes down to GND, which may cause the LCD to output a level other than VM. www.ite.com.tw 18 IT7020C/CY V0.7 DC Electrical Characteristics Vcc 2.5V 2.5V 0ms VLCD,VH >0ms VM 0ms VEE,VL 0ms 0ms 0ms 0ms DISPOFF Input signal, clock, or data Undefined Initalization (Longer than one frame Figure 8-1. IT7020 Power On/Down Scenario www.ite.com.tw 19 IT7020C/CY V0.7 IT7020C/CY 8.2 DC Electrical Characteristics (Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C) 1. The parameter ″ON resistance between Vi Xj″ in the table below indicates a resistance value between of the X and one of the V pins (either one of VH, VL, or VM) when a load current is applied to one of X1 to X240 pins. These resistance values are specified under the conditions listed below: VLCD = VH = 21.75V, VEE = VL =-18.5V, VM = 1.75V, GND = 0V. Use VH, VL, and VM in the range of VLCD – VM ≥ VH – VM = 21.5 to 7.5V, VEE – VM≤VL – VM = -21.5 to –7.5V in the relation of VH>VM>VL. 2. The current applied between the input and output is removed. The power supply current will increase through the current flows between the power supplies under the condition that an input to a CMOS gate is at an intermediate level. Therefore, use VIH = Vcc and VIL = GND. 3. The voltage relationship of each signal is illustrated in Figure 8-2: Table 8-1. DC Characteristics (Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C) Symbol Parameter Min. Typ. Max. Unit VIH Input high-level voltage 0.7×Vcc Vcc V VIL Input low-level voltage 0 0.3×Vcc V Conditions DIO1, DISPOFF, SHL, M, M_S, MWS0~4, RESET CL, MODE0, MODE1, AMP, CCL, DIO2 VOH Output high-level voltage Vcc-0.4 V IOH = -0.4 mA VOL Output low-level voltage 0.4 V IOL = 0.4 mA RON ON resistance between Vi Xj 0.7 2.0 Input leak current (1) -5 5 IIL1 Applicable Pin(s) M, DOC, DIO1, DIO2 kΩ ION = 150 µA X1-X240, V pin µA DIO1, DISPOFF, SHL, M, M_S, MWS0~4, RESET, CL, MODE0, MODE1, AMP, CCL, DIO2 IIL2 Input leak current (2) -25 25 µA VH, VL, VM ICC1 Current consumption (1) 5 40 µA Vcc=3.3V, VLCD - VEE=40V, FCL=19.2kHZ, fM=1.5kHz, ICC2 Current consumption (2) 10 50 µA Vcc=5.0V, VLCD - VEE=40V, FCL=19.2kHZ, fM=1.5kHz, ILCD Current consumption (3) 25 100 µA No loading, Vcc=3.3V, External charge bump VLCD - VEE=40V, FCL=19.2kHZ, fM=1.5kHz, www.ite.com.tw 20 IT7020C/CY V0.7 DC Electrical Characteristics VH: 23.0V Vcc:3.3V VM:3.0V GND:0.0V VL: -17.0V Display On Display Off Figure 8-32. LCD Common Drive Output Waveform & Voltage Level www.ite.com.tw 21 IT7020C/CY V0.7 IT7020C/CY V0:5.0V Vcc: 3.3V VM: 3.0V V1:1.0V GND: 0.0V Dis pla y O n Dis pla y O ff Figure 8-3. LCD Segment Drive Output Waveform & Voltage Level www.ite.com.tw 22 IT7020C/CY V0.7 AC Characteristics 9. AC Characteristics 9.1 AC Characteristics 1 (Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C) Table 9-1. AC Characteristics 1(Vcc = 2.5 to 5.5V, GND = 0V, VLCD − VEE = 15 to 43V, Ta = −25 to +75 °C) Symbol Parameter Applicable Pins Min. Typ. Max. Unit tCYC Clock cycle time CL 400 ns tCWH CL high-level width CL 25 ns tCWL CL low-level width CL 370 ns tr CL rising time CL 30 ns tf CL falling time CL 30 ns tDS Data set-up time DIO1, DIO2, CL 100 ns tDH Data hold time DIO1, DIO2, CL 10 ns tDD Data output delay time DIO1, DIO2, CL 200 ns tMD M output delay time M, CL 200 ns tMS M setup time M, CL 20 ns tMH M hold time M, CL 20 ns tDOC1 DOC delay time 1 DISPOFF, DOC 300 ns tDOC2 DOC delay time 2 DIO1, DIO2, DOC 300 ns 9.2 AC Characteristics 2 (Vcc = 2.5 to 4.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C) Table 9-2. AC Characteristics 2 (Vcc = 2.5 to 4.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C) Symbol tpd1 Parameter Output delay time 1 Applicable Pins Typ. X (n), M Min. Max. Unit 1.2 µs 9.3 AC Characteristics 3 (Vcc = 4.5 to 5.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C) Table 9-3. AC Characteristics 3 (Vcc = 4.5 to 5.5V, GND = 0V, VLCD − VEE = 43V, Ta = −25 to +75 °C) Symbol tpd1 Parameter Output delay time 1 www.ite.com.tw Applicable Pins X (n), M 23 Typ. Min. Max. Unit 0.7 µs IT7020C/CY V0.7 IT7020C/CY Test point *1: 30 pF *2: 100 pF Figure 9-1. AC Characteristics Testing Configuration tf CL tCWL tr tCWH tCYC 0.7 x Vcc 0.3 x Vcc tDS tDH 0.7 x Vcc DIO1 DIO2 0.3 x Vcc tDD VOH DIO1 DIO2 VOL tMD VOH M (During output) VOL tpd1 0.7xVH 0.3xVH X(n) 0.3xVL 0.7xVL 0.7xVcc CL 0.3xVcc tMS M (During input) tMH 0.7xVcc 0.7xVcc 0.3xVcc 0.3xVcc DISPOFF 0.3xVcc ～ DIO1 DIO2 (During input) tDOC1 0.3xVcc tDOC2 0.7xVcc DOC 0.3xVcc Figure 9-2. IT7020 Timing Diagram . www.ite.com.tw 24 IT7020C/CY V0.7 Package Information 10. Package Information TCP Outline Dimensions unit: mm INPUT LEAD NAME NC VLCDR VHR VMR VLR VEER DIO1 M_S ITE CCL CL GND SHL AMP DISPOFF DOC MODE0 MODE1 Vcc MWS0 MWS1 MWS2 MWS3 MWS4 RESET IT70 20 M DIO2 C2 C1 VEO VEEL VLL VML VHL VLCDL NC www.ite.com.tw 25 IT7020C/CY V0.7 IT7020C/CY SHPPING DIRECTION www.ite.com.tw 26 IT7020C/CY V0.7 Ordering Information 11. Ordering Information Part No. Package IT7020C/CY 273-TCP www.ite.com.tw 27 IT7020C/CY V0.7