pcf8576d NXP Semiconductors, pcf8576d Datasheet

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pcf8576d

Manufacturer Part Number
pcf8576d
Description
Universal Lcd Driver For Low Multiplex Rates
Manufacturer
NXP Semiconductors
Datasheet

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Product specification
Supersedes data of 2004 Oct 07
DATA SHEET
PCF8576D
Universal LCD driver for low
multiplex rates
INTEGRATED CIRCUITS
2004 Dec 22

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pcf8576d Summary of contents

Page 1

... DATA SHEET PCF8576D Universal LCD driver for low multiplex rates Product specification Supersedes data of 2004 Oct 07 INTEGRATED CIRCUITS 2004 Dec 22 ...

Page 2

... Subaddress counter 6.13 Output bank selector 6.14 Input bank selector 6.15 Blinker 7 CHARACTERISTICS OF THE I 7.1 Bit transfer 7.2 Start and stop conditions 7.3 System configuration 2004 Dec 22 7.4 Acknowledge 7.5 PCF8576D I 7.6 Input filters 2 7.7 I C-bus protocol 7.8 Command decoder 7.9 Display controller 7.10 Cascaded operation 8 LIMITING VALUES 9 HANDLING 10 DC CHARACTERISTICS 11 AC CHARACTERISTICS ...

Page 3

... Compatible with chip-on-glass technology Manufactured in silicon gate CMOS process. 2 GENERAL DESCRIPTION The PCF8576D is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD) with low multiplex rates. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes and segments and can easily be cascaded for larger LCD applications ...

Page 4

... AND BLINK CONTROL CONTROLLER PCF8576DH COMMAND WRITE DATA DECODER CONTROL 2 I C-BUS 24, 33 SA0 n.c. Fig.1 Block diagram for version PCF8576DH S39 DISPLAY RAM 40 4 BIT DATA POINTER AND AUTO INCREMENT SUB-ADDRESS COUNTER 16 17 ...

Page 5

... SELECTOR DISPLAY OUTPUT BANK SELECT AND BLINK CONTROL CONTROLLER PCF8576DT COMMAND WRITE DATA DECODER CONTROL RESET 2 I C-BUS 53 SA0 Fig.2 Block diagram for version PCF8576DT S39 DISPLAY RAM 40 4 BIT DATA POINTER AND AUTO INCREMENT SUB-ADDRESS COUNTER ...

Page 6

... Product specification PCF8576D DESCRIPTION 2 I C-bus serial data input/output 2 I C-bus serial clock input external clock input/output supply voltage cascade synchronization input/output internal oscillator enable input subaddress inputs ...

Page 7

... S36 4 S37 5 S38 6 S39 7 n.c. 8 n.c. 9 SDA 10 SCL 11 12 SYNC CLK OSC 2004 Dec 22 PCF8576DH Fig.3 Pin configuration (TQFP64). 7 Product specification PCF8576D 48 n.c. 47 S17 46 S16 45 S15 44 S14 43 S13 42 S12 41 S11 40 S10 n.c. MDB073 ...

Page 8

... S12 16 17 S13 S14 18 S15 19 20 S16 S17 21 S18 22 23 S19 S20 24 S21 25 26 S22 S23 27 S24 28 Fig.4 Pin configuration (TSSOP56). 8 Product specification PCF8576D 56 BP0 55 V LCD SA0 OSC CLK 46 SYNC 45 SCL 44 SDA ...

Page 9

... Philips Semiconductors Universal LCD driver for low multiplex rates 6 FUNCTIONAL DESCRIPTION The PCF8576D is a versatile peripheral device designed to interface any microprocessor/microcontroller with a wide variety of LCDs. It can directly drive any static or multiplexed LCD containing up to four backplanes and segments. The display configurations possible with the PCF8576D depend on the number of active backplane outputs required ...

Page 10

... Philips Semiconductors Universal LCD driver for low multiplex rates 6.1 Power-on reset At power-on the PCF8576D resets to the following starting conditions: All backplane outputs are set to V All segment outputs are set to V Drive mode ‘ multiplex with Blinking is switched off Input and output bank selectors are reset (as defined in ...

Page 11

... V LCD (b) Resultant waveforms at LCD segment. Fig.6 Static drive mode waveforms. 11 Product specification V V off(rms) on(rms) -------------------- - -------------------- - V V lcd lcd 0 1 0.354 0.791 0.333 0.745 0.333 0.638 0.333 0.577 LCD segments state 2 (off) MGL745 PCF8576D V on(rms -------------------- - V off(rms) 2.236 2.236 1.915 1.732 ...

Page 12

... V LCD / LCD V LCD / LCD LCD V SS (a) Waveforms at driver. V LCD V LCD / LCD /2 V LCD V LCD V LCD / LCD /2 V LCD (b) Resultant waveforms at LCD segment. 12 Product specification PCF8576D LCD segments state 1 state 2 MGL746 1 bias. 2 ...

Page 13

... V LCD / (a) Waveforms at driver. V LCD 2V LCD /3 V LCD / LCD /3 2V LCD /3 V LCD V LCD 2V LCD /3 V LCD / LCD /3 2V LCD /3 V LCD (b) Resultant waveforms at LCD segment. 13 Product specification PCF8576D LCD segments state 1 state 2 MGL747 1 bias. 3 ...

Page 14

... V 0.638V = on(rms) LCD – state2 S BP1 0.333V off(rms) LCD 2004 Dec 22 T frame (a) Waveforms at driver. (b) Resultant waveforms at LCD segment. Fig.9 Waveforms for the multiplex drive mode. 14 Product specification PCF8576D LCD segments state 1 state 2 MGL748 ...

Page 15

... V LCD /3 state LCD /3 2V LCD /3 V LCD 2004 Dec 22 T frame (a) Waveforms at driver. (b) Resultant waveforms at LCD segment. Fig.10 Waveforms for the multiplex drive mode. 15 Product specification PCF8576D LCD segments state 1 state – state1 S BP0 ...

Page 16

... Oscillator 6.5.1 I NTERNAL CLOCK The internal logic of the PCF8576D and its LCD drive signals are timed either by its internal oscillator external clock. The internal oscillator is enabled by connecting pin OSC to pin the internal oscillator is SS used, the output from pin CLK can be used as the clock signal for several PCF8576Ds in the system that are connected in cascade ...

Page 17

... The PCF8576D includes a RAM bank switching feature in the static and drive modes. In the static drive mode, the BANK SELECT command may request the contents of bit selected for display instead of the contents of bit 0 ...

Page 18

... The input bank selector functions are independent of the output bank selector. 6.15 Blinker The PCF8576D has a very versatile display blinking capability. The whole display can blink at a frequency selected by the BLINK command. Each blink frequency is a multiple integer value of the clock frequency; the ratio between the clock frequency and blink frequency depends on the blink mode selected, as shown in Table 3 ...

Page 19

Acrobat reader. white to force landscape pages to be ... drive mode LCD segments LCD backplanes BP0 f S ...

Page 20

... PCF8576D. The least significant bit of the slave address that a PCF8576D will respond to is defined by the level tied to its SA0 input. The PCF8576D is a write-only device and will not respond to a read access. Having two reserved slave addresses allows the ...

Page 21

... Both data pointer and subaddress counter are automatically updated and the data directed to the intended PCF8576D device. An acknowledgement after each byte is asserted only by the PCF8576Ds that are addressed via address lines A0, SDA SCL handbook, full pagewidth SDA ...

Page 22

... Fig.17 I C-bus protocol. 22 Product specification MASTER MASTER TRANSMITTER/ TRANSMITTER RECEIVER not acknowledge acknowledge 8 9 clock pulse for acknowledgement MBC602 2 C-bus. acknowledge by A0, A1 and A2 selected PCF8576D only byte(s) update data pointers and if necessary, subaddress counter MDB078 PCF8576D MGA807 ...

Page 23

... Philips Semiconductors Universal LCD driver for low multiplex rates last command commands continue. Table 4 Definition of PCF8576D commands COMMAND MODE SET LOAD DATA POINTER DEVICE SELECT BANK SELECT BLINK Note 1. Not used. 2004 Dec 22 ...

Page 24

... The display controller is also responsible for loading display data into BITS the display RAM in the correct filling order. 7.10 Cascaded operation In large display configurations PCF8576Ds can be differentiated on the same I BITS hardware subaddresses (A0, A1 and A2) and the A1 A0 ...

Page 25

... SYNC can be either an input or an output signal; a SYNC output is implemented as an open-drain driver with an internal pull-up resistor. A PCF8576D asserts SYNC at the start of its last active backplane signal, and monitors the SYNC line at all other times. If cascade synchronization is lost, it will be restored by the first PCF8576D to assert SYNC ...

Page 26

... SYNC BP1 (1/2 bias) BP1 (1/3 bias) SYNC BP2 SYNC BP3 SYNC Fig.20 Synchronization of the cascade for the various PCF8576D drive modes. 2004 Dec frame frame (a) static drive mode. ( multiplex drive mode. ( multiplex drive mode. ( multiplex drive mode. ...

Page 27

... HANDLING Inputs and outputs are protected against electrostatic discharge in normal handling. However totally safe desirable to take normal precautions appropriate to handling MOS devices (see “Handling MOS Devices” ). 2004 Dec 22 PARAMETER 27 Product specification PCF8576D MIN. MAX. UNIT 0.5 +6 0.5 +7.5 ...

Page 28

... note 4 note LCD note LCD external clock with 50% duty factor and may be driven according to the Product specification PCF8576D MIN. TYP. MAX. 1.8 5.5 2.5 6 0. 0. ...

Page 29

... BP0 to BP3, and S0 to S39 V SS Fig.21 Test loads. 29 Product specification MIN. TYP. 960 1890 1.3 0.6 0.6 1.3 0.6 100 0 0.6 1.5 k SDA SCL (2%) MCE439 PCF8576D MAX. UNIT 2640 400 kHz 0.3 s 1.0 s 0.3 s 400 ...

Page 30

... SDA t BUF SCL SDA MGA728 2004 Dec 22 1/f CLK t CLKH t CLKL t PD(SYNC) t SYNCL t PD(LCD) Fig.22 Driver timing waveforms. t LOW t HD;STA t HD;DAT SU;STA 2 Fig.23 I C-bus timing waveforms. 30 Product specification PCF8576D 0.7V DD 0.3V DD 0. PD(SYNC) 0 0.5 V MCE424 SU;DAT t HIGH t SU;STO ...

Page 31

... S38 385.2 S39 493.2 SDA 565.2 SDA 637.2 Alignment marks 709.2 C1 876.6 C2 876.6 876.6 Table 16 Gold bump dimension PCF8576DU/2DA/2 876.6 876.6 Gold bump dimension +876.6 Gold bump tolerance +876.6 +876.6 +876.6 +876.6 +876.6 +876.6 +876.6 +876.6 31 Product specification PCF8576D ...

Page 32

... PCF8576DU 2.26 mm 2.01 mm. 80 17.5 (height) m. Fig.23 Bonding pad locations. 32 Product specification BP3 BP1 16 BP2 15 14 BP0 V LCD SA0 MDB074 PCF8576D ...

Page 33

... A0 BP0, BP1, BP2, BP3 S0 to S39 2004 Dec LCD LCD Fig.24 Device protection diagram. 33 Product specification PCF8576D SCL SDA V LCD MDB076 ...

Page 34

... The orientation of the pocket is indicated by the position of the IC type name on the die surface with respect to the chamfer on the upper left corner of the tray. 34 Product specification PCF8576D C D x,1 B x,y MCE404 PC8576DU MDB080 Fig.26 Tray alignment. ...

Page 35

... 2.5 scale (1) ( 0.27 0.18 10.1 10.1 12.15 12.15 0.5 0.17 0.12 9.9 9.9 11.85 11.85 REFERENCES JEDEC JEITA MS-026 detail 0.75 1.45 1 0.2 0.08 0.1 0.45 1.05 EUROPEAN PROJECTION Product specification PCF8576D SOT357 ( 1.05 0 ISSUE DATE 00-01-19 02-03-14 ...

Page 36

... 2.5 scale (1) ( 0.28 0.2 0.2 14.1 6.2 0.5 0.17 0.1 0.1 13.9 6.0 REFERENCES JEDEC JEITA MO-153 detail 8.3 0.8 0.50 1 0.25 0.08 7.9 0.4 0.35 EUROPEAN PROJECTION Product specification PCF8576D SOT364 0.5 8 0.1 o 0.1 0 ISSUE DATE 99-12-27 03-02-19 ...

Page 37

... 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 2 seconds to 5 seconds between 270 C and 320 C. 37 Product specification PCF8576D ...

Page 38

... However, the image sensor package can be mounted by the client on a flex foil by using a hot bar soldering process. The appropriate soldering profile can be provided on request. 9. Hot bar soldering or manual soldering is suitable for PMFP packages. 2004 Dec 22 (1) (3) , TFBGA, (8) 38 Product specification PCF8576D SOLDERING METHOD WAVE REFLOW not suitable suitable (4) not suitable suitable suitable ...

Page 39

... Product specification PCF8576D DEFINITION These products are not Philips Semiconductors ...

Page 40

... Philips. This specification can be ordered using the code 9398 393 40011. 2004 Dec 22 C COMPONENTS 2 C components conveys a license under the Philips’ system provided the system conforms to the I 40 Product specification PCF8576D 2 C patent to use the 2 C specification defined by ...

Page 41

Philips Semiconductors – a worldwide company Contact information For additional information please visit http://www.semiconductors.philips.com. For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. © Koninklijke Philips Electronics N.V. 2004 All rights are reserved. Reproduction in whole or in part is prohibited ...

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