Published 3 Sep 2026

Ericsson Displays

\\ ===== Overview ===== ^ Ericsson cellphone LCDs ||||||||| ^Phone^Resolution^Chip^LCD^Part num^Pinout^Interface^I2C addr^Voltage| ^t20|101x33 mono|[[ericsson1#pcf8558|PCF8558]]|** **|** **|[[ericsson1#pinout-1|pinout-1]]|I2C|0x70h, 0x71h|2.7V| ^t28|101x33 mono|[[ericsson1#pcf8558|PCF8558]]|** **|** **|[[ericsson1#pinout-1|pinout-1]]|I2C|0x70h, 0x71h|2.7V| ^t29|101x33 mono|[[ericsson1#pcf8558|PCF8558]]|** **|** **|[[ericsson1#pinout-1|pinout-1]]|I2C|0x70h, 0x71h|2.7V| ^t10|101x33 mono|OM 4086U/2/2|** **|** **|[[ericsson1#pinout-2|pinout-2]]|I2C|0x78h (only write mode)|2.7V| ^t18|101x33 mono|OM 4086U/2/2|** **|** **|[[ericsson1#pinout-2|pinout-2]]|I2C|0x78h (only write mode)|2.7V| ^t39|101x54 mono| |** **|** **|[[ericsson1#pinout-3|pinout-3]]|I2C|0x76|2.8V| ^A1018|101x40? mono|[[ericsson1#pcf8558|PCF8558]]|** **|** **|[[ericsson1#pinout-1|pinout-1]]|I2C|0x70h, 0x71h|2.8V| ^A2618|102/101?x64 mono|Philips PCF 8548|** **|** **|[[ericsson1#pinout-4|pinout-4]]|I2C|0x7A, 0x7B|2.8V| ^A2628|102/101?x64 mono|Philips PCF 8548|** **|** **|[[ericsson1#pinout-4|pinout-4]]|I2C|0x7A, 0x7B|2.8V| ^R310|101×33 mono|OM 4086U/2/2|**LPH7754**|** **|[[ericsson1#pinout-1|pinout-1]]|I2C|0x78h (only write mode)|2.7V| ===== Hardware description ===== ====pinout-1==== /*{{arduino:nokia:lph7366_pinout.gif}}(([[https://web.archive.org/web/20171209101939/http://www.module.ro/nokia_3510.html|www.module.ro/nokia_3510.html]], by Bergthaller Iulian-Alexandru))*/ ^The lcd has 5 pins:^^^ ^Pin^Label^Description| ^1|Vlcd|6.4V| ^2|Vlogic|2.7V| ^3|Sdata|I2C data| ^4|Gnd| | ^5|Sclk|I2C clock| ====pinout-2==== /*{{arduino:nokia:lph7366_pinout.gif}}(([[https://web.archive.org/web/20171209101939/http://www.module.ro/nokia_3510.html|www.module.ro/nokia_3510.html]], by Bergthaller Iulian-Alexandru))*/ ^The lcd has 5 pins:^^^ ^Pin^Label^Description| ^1|Vlcd|+6.4V| ^2|Vlogic|+2.7V| ^3|Sdata|I2C data| ^4|Gnd| | ^5|Sclk|I2C clock| ====pinout-3==== /*{{arduino:nokia:lph7366_pinout.gif}}(([[https://web.archive.org/web/20171209101939/http://www.module.ro/nokia_3510.html|www.module.ro/nokia_3510.html]], by Bergthaller Iulian-Alexandru))*/ ^The lcd has 8 pins:^^^ ^Pin^Label^Description| ^1|El1|(cca. 50V / 100 KHz)| ^2|_Reset| | ^3|Sclk|I2C clock| ^4|Gnd| | ^5|Sdata|I2C data| ^6|Vlogic|2.8V| ^7|Vlcd|from internal dc/dc convertor| ^8|El2| | ====pinout-4==== /*{{arduino:nokia:lph7366_pinout.gif}}(([[https://web.archive.org/web/20171209101939/http://www.module.ro/nokia_3510.html|www.module.ro/nokia_3510.html]], by Bergthaller Iulian-Alexandru))*/ ^The lcd has 6 pins:^^^ ^Pin^Label^Description| ^1|_Reset| | ^2|Vlogic|2.8V| ^3|Sdata|I2C data| ^4|Sclk|I2C clock| ^5|Gnd| | ^6|Vlcd|6.4V from internal dc/dc convertor| ====pcf8558==== * based on {{:electronic:datasheet:philips:pcf8558.pdf|Philips PCF8558}} Instruction format: control byte followed by column address ^Instruction^D7^D6^D5^D4^D3^D2^D1^D0^Description| ^\\ Display control byte:|\\ Y2 |\\ Y1 |\\ Y0 |0|0|0|0|0|Y address vector, blank mode| ^:::|:::|:::|:::|0|1|0|0|1|Y address vector, normal mode| ^:::|:::|:::|:::|0|1|1|0|1|Y address vector, all segments on mode| ^Column address: |0| X address |||||||set column address| ====== References and Additional Resources ====== * https://web.archive.org/web/20240908105613/https://www.8051projects.net/custompages/ericsson.php * https://kazus.run/indexs/shemes/0/16779/0.html * http://sandiding.tripod.com/Bertys.html /* * [[https://web.archive.org/web/20101223092811/http://www.module.ro/lph7366.html|Additional info]] */ \\ \\