Lub hwj huam mov ntsuas zaub nrog cov zis yog feem ntau segmented zaub. Tus tsav tsheb muab qhov hluav taws xob VDD ntau yog 1.8V txog 3.6V, thiab tus tsav tsheb LCD muab qhov voltage VLCD ntau yog 2.7V txog 5.5V. Cov khoom siv me me tuaj yeem siv tau los ntawm cov roj teeb. Cov zis tam sim no yog 20mA (LED chaw nres nkoj), thiab nws txhawb nqa qhov siab tshaj plaws ntawm 112- ntu zaub. Lub voj voog ua haujlwm yog 1/3 lossis 1/4 (static). Cov neeg siv tuaj yeem xaiv raws li kev tsim tshwj xeeb ntawm lub system. Lub interface txhawb nqa 3-wire serial interface, uas tuaj yeem txuas tau yooj yim rau lub kaw lus, txuag lub sijhawm thiab kev siv zog thiab tshem tawm cov teeb meem ntawm phau ntawv ntsuas kev nyeem ntawv.

Lub LCD ntu tsav tsheb siv 4 COM chaw nres nkoj, txhua tus ncej tuaj yeem ua ke nrog txog 28 cov ntsiab lus, yog li nws tuaj yeem tswj tau txog li 112 SEG ntu. Cov zis tam sim no ntawm txhua ntu SEG yog 5mA, uas yog, thaum txhua ntu tau teeb, nws tsuas yog 5mA, thiab COM cov ncej tso tawm tam sim no yog 5mA, yog li tam sim no me dua thiab lub zog siv kuj tseem qis dua. GPO tso zis tam sim no yog 10mA. Tus maub los yuav tsum tswj cov COM ntau ncej thiab lwm tus ncej ntawm SEG ntu uas yuav tsum tau muab tso rau tib lub sijhawm. Ua li no, yog tias tam sim no dhau los ntawm ntu, ntu yuav teeb

Kev lag luam daim ntawv thov ntawm LCD ntu zaub rau cov khoom siv hluav taws xob nrog cov zis:

· Muaj khoom siv

· Cov khoom siv sib txuas lus

· Portable li (POS, ECR, PDA, thiab lwm yam)

· DVC

· Tsheb tso suab

· Cov khoom siv hauv tsev

· Instrumental

LCD with output for power supply instrument -