PEDL6778B-01 PEDL6778B-01 el Pr im This version: MSM6778B Sep. 2000 in y ar ¡ Semiconductor MSM6778B ¡ Semiconductor 120-DOT COMMON DRIVER (TAB) GENERAL DESCRIPTION The MSM6778B is a dot-matrix LCD common driver. Fabricated in CMOS technology, the device contains two 60-bit bidirectional shift registers, two 60-bit level shifters, and two 60-bit 4-level drivers. The MSM6778B has 120 LCD outputs. The number of LCD outputs can be increased by cascading MSM6778B devices, using cascade-connected I/O pins. The bias voltage which specifies a drive level can optionally be supplied externally. The MSM6778B is suitable for various types of LCD panel. FEATURES • Logic supply voltage : 2.7 V to 5.5 V • LCD drive voltage : A wide range from 18 V to 28 V • Applicable LCD duty : 1/100 to 1/256 • The bias voltage can be externally supplied. • Structure: 35mm-wide Tape Automated Bonding (TAB) film (Product name: MSM6778BAV-Z-01) Tin-plating 1/8 PEDL6778B-01 ¡ Semiconductor MSM6778B BLOCK DIAGRAM O1 O2 O 59 O 60 V1L VDD V2L 60-BIT 4-LEVEL DRIVER V5L VEEL VEE DF 60-BIT LEVEL SHIFTER VDD DISPOFF VSS SHL IO 1 CP 60-BIT BI-DIRECTIONAL SHIFT REGISTER IO 60 60-BIT BI-DIRECTIONAL SHIFT REGISTER IO 120 VDDL,VDDR VSS IO 61 VDD VSS 60-BIT LEVEL SHIFTER V1R VDD V2R 60-BIT 4-LEVEL DRIVER V5R VEE VEER O 61 O 62 O 119 O 120 2/8 PEDL6778B-01 ¡ Semiconductor MSM6778B PIN CONFIGURATION (TOP VIEW) (LCD output side) O1 O2 O119 O120 Chip surface 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 (Input pin side) Input Pin Name Pin Symbol Pin Symbol 1 V1L 11 IO61 2 V2L V5L 12 13 IO120 3 4 VEEL 14 CP 5 VDDL 15 VDDR 6 SHL 16 VEER 7 VSS 17 8 9 DISPOFF IO1 18 V5R V2R 19 V1R 10 DF IO60 3/8 PEDL6778B-01 ¡ Semiconductor MSM6778B ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating Unit Power Supply Voltage (1) VDD Ta=25˚C –0.3 to +6.5 V Power Supply Voltage (2) VDD–VEE* Ta=25˚C 0 to 30 V VI Ta=25˚C –0.3 to VDD+0.3 V TSTG — –30 to +85 ˚C Input Voltage Storage Temperature * V1>V2>V5>VEE, VDD > = V1>V2 > =VDD–10V, VEE+10V > =V5>VEE VDD=VDDL=VDDR, V1=V1L=V1R, V2=V2L=V2R, V5=V5L=V5R, VEE=VEEL=VEER RECOMMENDED OPERATING CONDITIONS Parameter Symbol Power Supply Voltage (1) VDD Power Supply Voltage (2) VDD–VEE* Operating temperature Condition Range Unit — 2.7 to 5.5 V No load 14 to 28 V During liquid crystal driving 18 to 28 V — –20 to +75 ˚C Top * V1>V2>V5>VEE, VDD > =V1>V2 > =VDD–7V, VEE+7V > =V5>VEE VDD=VDDL=VDDR, V1=V1L=V1R, V2=V2L=V2R, V5=V5L=V5R, VEE=VEEL=VEER Note: Unlike mold packages, The Tape Carrier Package (TCP) cannot shield a light. Please shield a light to secure the electrical characteristics. ELECTRICAL CHARACTERISTICS DC Characteristics (VDD=2.7 to 5.5 V, Ta= –20 to +75˚C) Symbol Condition Min. Typ. Max. Unit "H" Input Voltage Parameter VIH *1 — 0.8 VDD — — V "L" Input Voltage VIL *1 — — — 0.2 VDD V "H" Input Current IIH *1 — — 1 mA –1 mA "L" Input Current "H" Output Voltage IIL *1 VOH *2 VI=VDD, VDD=5.5 V VI=0 V, VDD=5.5 V — — IO=–0.2 mA, VDD=2.7 V VDD–0.4 — V "L" Output Voltage VOL *2 IO=0.2 mA, VDD=2.7 V — — 0.4 V ON Resistance RON *4 VDD–VEE=25 V, *3 — — 2.0 kW I VN–VO I=0.25 V Supply Current Input Capacitance *1 *2 *3 *4 *5 IDD *5 CP=28 kHz, VDD=3.0 V — — 60 mA IEE *5 VDD–VEE=25 V, No load — — 400 mA f=1 MHz — — — pF CI Applicable to pins CP, IO1,IO60,IO61, IO120, SHL, DF, DISPOFF Applicable to pins IO1, IO60, IO61, IO120 VN=V1, V2, V5, VEE, V2=1/16 (VDD–VEE), V5=15/16 (VDD–VEE) Applicable to pins O1 to O120 IDD shows the supply current between VDD and VSS. IEE shows the supply current between VDD and VEE. Note: The above values are guaranteed when TCP is protected from light. 4/8 PEDL6778B-01 ¡ Semiconductor MSM6778B Switching Characteristics (VDD=2.7 to 5.5 V, Ta= –20 to +75˚C, CL=15 pF) Symbol Condition Min. Typ. Max. Unit IO1, IO61 (IO60, IO120) Parameter tPLH — *1 — 3 ms "H", "L" Propagation Delay Time tPHL Clock Frequency fCP — — — 1 MHz tWCP — 45 — — ns Data Setup Time IO1, IO61 Æ CP (IO60, IO120 Æ CP) tSETUP — 70 — — ns Data Hold Time tHOLD — 70 — — ns tr (CP) — — — 20 ns CP Pulse Width CP Æ IO1, IO61 (CP Æ IO60, IO120) CP Rise, Fall Time tf (CP) *1 The relationship between tPLH (tPLH) Min. and tHOLD Min. satisfies the operation in a cascade connection state. Note 1: When display is controlled by DISPOFF pin, CP rise and fall time must be £ 1 ms. Note 2: The above values are guaranteed when TCP is protected from light. tf (CP) tWCP CP tr (CP) tWCP 0.8VDD 0.8VDD 0.2VDD 0.2VDD tSETUP IO1 (IO60) 0.8VDD IO61 (IO120) 0.2VDD tHOLD tPLH (tPHL) IO60 (IO1) 0.8VDD IO120 (IO61) 0.2VDD 5/8 PEDL6778B-01 ¡ Semiconductor MSM6778B FUNCTIONAL DESCRIPTION Pin Functional Description • IO1, IO60, IO61, IO120 These are I/O pins of the two 60-bit bidirectional shift registers. • SHL This pin selects the shift direction of the two 60-bit bidirectional shift registers. Set this pin to "H" or "L" level during power-on. SHL Shift Direction L I/O pins O1 Æ O60 IO1, IO61 O61 Æ O120 IO60, IO120 Function Input IO1 and IO61 are data input pins for the shift Output register. The entered data is read in at the falling edge of a clock pulse. The data is output from IO60 and IO120 behind the number of bits (60) of the shift register. H O60 Æ O1 O120 Æ O61 IO60, IO120 IO1, IO61 Input IO60 and IO120 are data input pins for the shift Output register. The entered data is read in at the falling edge of a clock pulse. The data is output from IO1 and IO61 behind the number of bits (60) of the shift register. • CP This is a clock pulse input for the two 60-bit bidirectional shift registers. Scan data is shifted at the falling edge of a clock pulse. • DF This is a synchronous signal input for alternate signal for LCD driving. • DISPOFF This is an input used to control the output levels of O1 to O120. During low level input, the V1 level is output from the output pins O1 to O120 independently of the data of the shift register. See the truth table. • O1 to O120 These are outputs for the 4-level drivers, which correspond directly to each bit of the shift register. One of the four levels V1, V2, V5, and VEE is selected and output depending on the combination of the shift register data and a DF signal. See the Truth Table. • V1L, V2L, V5L, VEEL, V1R, V2R, V5R, VEER These are LCD drive bias voltage inputs. • VDDL, VDDR, VSS These are power supply pins for the device. VDD is usually from 2.7 V to 5.5 V and VSS is 0 V. 6/8 PEDL6778B-01 ¡ Semiconductor MSM6778B Truth Table DF SHIFT REGISTER DATA DISPOFF DRIVER OUTPUT (O1 to O120) L L H V2 L H H VEE H L H V5 H H H V1 X X L V1 X : Don't care NOTES ON USE (when turning the power ON or OFF) The LCD drivers of this IC require a high voltage. For this reason, if a high voltage is applied to the LCD drivers with the logic power supply floating, excess current flows. This may damage the IC. Be sure to follow the sequence below when turning the power ON or OFF. Power ON : Logic circuits ON Æ LCD drivers ON, or both ON at a time Power OFF : LCD drivers OFF Æ logic circuits OFF, or both OFF at a time 7/8 PEDL6778B-01 ¡ Semiconductor MSM6778B NOTICE 1. The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-to-date. 2. The outline of action and examples for application circuits described herein have been chosen as an explanation for the standard action and performance of the product. When planning to use the product, please ensure that the external conditions are reflected in the actual circuit, assembly, and program designs. 3. When designing your product, please use our product below the specified maximum ratings and within the specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating temperature. 4. Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified operating range. 5. Neither indemnity against nor license of a third party’s industrial and intellectual property right, etc. is granted by us in connection with the use of the product and/or the information and drawings contained herein. No responsibility is assumed by us for any infringement of a third party’s right which may result from the use thereof. 6. The products listed in this document are intended for use in general electronics equipment for commercial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). These products are not authorized for use in any system or application that requires special or enhanced quality and reliability characteristics nor in any system or application where the failure of such system or application may result in the loss or damage of property, or death or injury to humans. Such applications include, but are not limited to, traffic and automotive equipment, safety devices, aerospace equipment, nuclear power control, medical equipment, and life-support systems. 7. Certain products in this document may need government approval before they can be exported to particular countries. The purchaser assumes the responsibility of determining the legality of export of these products and will take appropriate and necessary steps at their own expense for these. 8. No part of the contents contained herein may be reprinted or reproduced without our prior permission. 9. MS-DOS is a registered trademark of Microsoft Corporation. Copyright 2000 Oki Electric Industry Co., Ltd. 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