PCF8578 Philips Semiconductors, PCF8578 Datasheet
PCF8578
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PCF8578 Summary of contents
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... DATA SHEET PCF8578 LCD row/column driver for dot matrix graphic displays Product specification Supersedes data of 1997 Mar 28 File under Integrated Circuits, IC12 INTEGRATED CIRCUITS 1998 Sep 08 ...
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... CHIP DIMENSIONS AND BONDING PAD LOCATIONS 16 CHIP-ON GLASS INFORMATION 17 PACKAGE OUTLINE 1998 Sep 08 18 SOLDERING 18.1 Introduction 18.2 Reflow soldering 18.3 Wave soldering 18.3.1 LQFP 18.3.2 VSO 18.3.3 Method (LQFP and VSO) 18.4 Repairing soldered joints 19 DEFINITIONS 20 LIFE SUPPORT APPLICATIONS 21 PURCHASE OF PHILIPS I 2 C-BUS 2 Product specification PCF8578 2 C COMPONENTS ...
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... Telecommunication systems Point-of-sale terminals Computer terminals Instrumentation. 3 The PCF8578 is a low power CMOS LCD row/column driver, designed to drive dot matrix graphic displays at multiplex rates 16 32. The device has 40 outputs, of which 24 are programmable, configurable as The PCF8578 can function as a stand-alone LCD ...
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... COUNTER C-BUS COMMAND CONTROLLER DECODER 7 (13) n.c. SA0 Fig.1 Block diagram. 4 Product specification (29 to 35, 37 62, 63, 64 (1) PCF8578 DISPLAY DECODER (9) 3 TIMING (10) 4 GENERATOR (16) 8 OSCILLATOR (11) 5 MSA842 PCF8578 SYNC CLK OSC R OSC V SS ...
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... LCD bias voltage inputs 25 LCD supply voltage 14, 15 19, not connected 26 to 28, 36 35, 37 LCD column driver outputs LCD row/column driver outputs 63, 64 LCD row driver outputs 5 Product specification PCF8578 DESCRIPTION ) SS ...
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... R15/C15 17 40 C39 R16/C16 C38 18 39 R17/C17 19 C37 38 R18/C18 20 C36 37 R19/C19 36 C35 21 R20/C20 22 35 C34 R21/C21 C33 23 34 R22/C22 24 C32 33 R23/C23 R31/C31 25 32 R24/C24 26 R30/C30 31 R25/C25 R29/C29 27 30 R26/C26 R28/C28 28 29 R27/C27 MSA839 Fig.2 Pin configuration (VSO56). 6 Product specification PCF8578 ...
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... SDA SCL 8 9 SYNC CLK TEST 12 13 SA0 n. OSC 1998 Sep 08 PCF8578 Fig.3 Pin configuration (LQFP64). 7 Product specification PCF8578 48 R22/C22 47 n.c. 46 R23/C23 45 R24/C24 44 R25/C25 43 R26/C26 42 R27/C27 41 R28/C28 40 R29/C29 39 R30/C30 38 R31/C31 37 C32 36 n.c. 35 C33 34 C34 ...
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... SA0. The PCF8578 and PCF8579 also have subaddresses. The subaddress of the PCF8578 is only defined in mixed mode and is fixed at 0. The RAM may only be accessed in mixed mode and data is loaded as described for the PCF8579. ...
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... The bias levels required to produce maximum contrast depend on the multiplex rate and the LCD threshold voltage ( typically defined as the RMS voltage which the LCD exhibits 10% contrast. Table 2 shows the optimum voltage bias levels for the PCF8578 as functions together with the discrimination op op ...
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... MICROCONTROLLER C SCL C SDA LCD DISPLAY rows columns LCD V LCD PCF8578 SA0 SDA LCD V SS SA0 OSC V LCD R OSC SDA SCL CLK SYNC Fig.5 Typical mixed mode configuration. ...
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... LCD SYNC 1998 Sep 08 T frame Fig.6 LCD row/column waveforms. 11 Product specification MSA841 PCF8578 ON OFF 1:8 1:16 1:24 1:32 column display ...
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... (t) = C2(t) R2(t): state off(rms 0.297 Product specification PCF8578 state 1 (OFF) state 2 (ON) dot matrix 1:8 multiplex rate MSA840 general relationship (n = multiplex rate) V on(rms off(rms ...
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... Fig.8 LCD drive mode waveforms for multiplex rate. 1998 Sep 08 T frame R1(t): general relationship (n = multiplex rate on(rms) = 0.316 ( ) R2(t): V off(rms 0.254 Product specification dot matrix 1:16 multiplex rate MSA836 PCF8578 state 1 (OFF) state 2 (ON) ...
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... Fig.9. summarizes the nominal CLK and SYNC frequencies. OSC 7.7 The timing generator of the PCF8578 organizes the internal data flow of the device and generates the LCD frame synchronization pulse SYNC, whose period is an integer multiple of the clock period. In cascaded applications, this signal maintains the correct timing ...
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... Display RAM The PCF8578 contains 40-bit static RAM which stores the display data. The RAM is divided into 4 banks of 40 bytes ( bits). During RAM access, data is transferred to/from the RAM via the I ...
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... RAM data bytes are written or read as indicated above PCF8579 driver 2 driver k PCF8578/PCF8579 system RAM character mode half-graphic mode full-graphic mode Fig.10 RAM ACCESS mode. bank 0 bank 1 bank 2 ...
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Acrobat reader. white to force landscape pages to be ... DEVICE SELECT: subaddress 12 RAM ACCESS: character mode bank 1 LOAD X-ADDRESS: X-address = ...
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... Philips Semiconductors LCD row/column driver for dot matrix graphic displays bank 0 bank 1 bank 2 bank 3 Fig.12 Relationship between display and SET START BANK multiplex rate and start bank = 2. 1998 Sep 08 RAM LCD MSA851 18 Product specification PCF8578 top of LCD ...
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... SA0 to either PCF8578 or PCF8579 can be distinguished on the 2 same I C-bus which allows: 1. One PCF8578 to operate with PCF8579s on 2 the same I C-bus for very large applications 2. The use of two types of LCD multiplex schemes on the 2 same I C-bus. ...
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... COMMAND byte at this moment master transmitter becomes a master receiver and PCF8578/PCF8579 slave receiver becomes a slave transmitter (b) acknowledge by all addressed acknowledge PCF8578s / PCF8579s from master DATA 0 n bytes (c) 20 Product specification acknowledge by A0, A1, A2 and A3 selected PCF8578s / ...
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... If the bit is reset, it indicates the conclusion of the command transfer. Further bytes will be regarded as display data. Commands are transferred in WRITE mode only. The five commands available to the PCF8578 are defined in Tables 5 and 6. Table 5 Summary of commands COMMAND SET MODE ...
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... Philips Semiconductors LCD row/column driver for dot matrix graphic displays Table 6 Definition of PCF8578/PCF8579 commands COMMAND SET MODE C 1 SET START BANK C 1 DEVICE SELECT C 1 RAM ACCESS C 1 LOAD X-ADDRESS C 0 1998 Sep 08 OPCODE OPTIONS see Table 7 ...
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... MUX (32 rows) Table 8 Set mode option 2 DISPLAY STATUS Blank Normal All segments on Inverse video Table 9 Set mode option 3 SYSTEM TYPE PCF8578 row only PCF8578 mixed mode Table 10 Set start bank option 1 START BANK POINTER Bank 0 Bank 1 Bank 2 Bank 3 1998 Sep 08 Table 11 Device select option 1 ...
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... In this event the transmitter must leave the data line HIGH to enable the master to generate a stop condition. SDA SCL data line change stable; of data data valid allowed Fig.15 Bit transfer. 24 Product specification Acknowledge MBA607 PCF8578 ...
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... SLAVE SLAVE TRANSMITTER / RECEIVER RECEIVER Fig.17 System configuration. START condition C-bus are available on request. Fig.18 Acknowledgement on the I 25 Product specification PCF8578 SDA SCL P STOP condition MBA608 MASTER MASTER TRANSMITTER / TRANSMITTER RECEIVER MBA605 clock pulse for acknowledgement 9 8 MBA606 - 1 2 C-bus ...
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... Inputs and outputs are protected against electrostatic discharge in normal handling. However totally safe it is desirable to take normal precautions appropriate to handling MOS devices. Advice can be found in Data Handbook IC12 under “Handling MOS Devices” . 1998 Sep 08 PARAMETER current 26 Product specification PCF8578 MIN. MAX. UNIT 0.5 +8 ...
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... C; unless otherwise specified. MIN. TYP. 2 0 LCD LCD LOAD 4. 4. LCD PCF8578 MAX. UNIT 6 3 1 150 A ...
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... SDA 1 nF Fig.19 AC test loads. 28 Product specification +85 C; unless otherwise specified. MIN. TYP 1.2 2 0.9 1 4.7 4.7 4.0 4.0 4.7 4.0 250 0 4.0 1 MSA829 PCF8578 MAX. UNIT 3.3 kHz 2.5 kHz 500 ns 100 s 100 kHz 100 0 ...
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... SCL SDA MGA728 1998 Sep CLK t PSYNC t PSYNC ( LCD t PLCD Fig.20 Driver timing waveforms. t LOW t t HD;DAT t r HD;STA t SU;STA 2 Fig.21 I C-bus timing waveforms. 29 Product specification PCF8578 0.5 V 0.5 V MSA834 SU;DAT t HIGH t SU;STO ...
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... R8/ R9/ R10/ R11/ R12/ R13 C10 C11 C12 C13 PCF8578 V SS SA0 LCD SDA SCL SYNC OSC CLK TEST R OSC Fig.22 Stand-alone application using 8 rows and 32 columns. LCD DISPLAY R14/ R15/ ...
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... LCD 12 1 C17 C39 17 (1) ALTERNATE DISPLAY BANK ALTERNATE DISPLAY BANK PCF8578: Segment Driver Application (mux 1:16) Total: 384 segments LSB Bank MSB 2 ...
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... Acrobat reader. white to force landscape pages to be ... rows 3)R C PCF8578 V 4 unused columns (ROW MODE SA0 LCD V LCD ...
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... Acrobat reader. white to force landscape pages to be ... V DD SA0 subaddress rows rows PCF8578 V 4 (ROW MODE) unused columns SA0 LCD V LCD LCD V SS OSC OSC V SS ...
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... Acrobat reader. white to force landscape pages to be ... V DD SA0 subaddress 3 rows PCF8578 V 4 (ROW MODE) unused columns SA0 LCD V LCD LCD V SS OSC V 4 ...
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... Acrobat reader. white to force landscape pages to be ... V SS SCL V DD SDA V LCD R0 R OSC ( n.c. n.c. PCF8578 R31/C31 Fig.27 Example of single plane wiring, single screen with multiplex rate (PCF8578 in row driver mode). LCD DISPLAY C0 C27 C28 C39 C0 PCF8579 C27 C28 C39 PCF8579 to other PCF8579s MSA852 ...
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... Fig.28 Bonding pad locations. 36 Product specification R8/C8 R9/C9 45 R10/C10 44 43 R11/C11 42 R12/C12 x 41 R13/C13 R14/C14 40 39 R15/C15 R16/C16 38 R17/C17 37 36 R18/C18 35 R19/C19 R20/C20 34 33 R21/C21 R22/C22 MBH589 PCF8578 ...
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... Product specification PCF8578 PINS VSO56 LQFP64 ...
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... Product specification PCF8578 PINS VSO56 LQFP64 ...
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... CLK SYNC SCL SDA R0 to R31 inputs SA0 and are left unconnected they are internally pulled to V Fig.29 Typical chip-on glass application (viewed from the underside of the chip). PCF8578 LCD DISPLAY . LCD V SS CLK ...
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... REFERENCES JEDEC EIAJ detail 1.6 1.45 2.25 0.2 0.1 1.4 1.30 0.063 0.057 0.008 0.004 0.089 0.055 0.051 EUROPEAN PROJECTION Product specification PCF8578 SOT190 ( 0.90 0.1 0. 0.035 0.004 0.022 ISSUE DATE 96-04-02 97-08-11 ...
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... 2.5 scale (1) ( 0.27 0.18 10.1 10.1 12.15 0.5 0.17 0.12 9.9 9.9 11.85 REFERENCES JEDEC EIAJ detail 12.15 0.75 1.0 0.2 0.12 0.1 11.85 0.45 EUROPEAN PROJECTION Product specification PCF8578 SOT314 (1) ( 1.45 1. 1.05 1.05 0 ISSUE DATE 95-12-19 97-08-01 ...
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... V) applied to the flat part of the lead. Contact time must be limited to 10 seconds 300 C. When using a dedicated tool, all other leads can be soldered in one operation within seconds between 270 and 320 C. 42 Product specification PCF8578 VSO) ...
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... Philips. This specification can be ordered using the code 9398 393 40011. 1998 Sep 08 C COMPONENTS 2 C components conveys a license under the Philips’ system provided the system conforms to the I 43 Product specification PCF8578 2 C patent to use the 2 C specification defined by ...
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... Tel. +46 8 5985 2000, Fax. +46 8 5985 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2865, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...