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SED1278DOH Datasheet(PDF) 3 Page - Epson Company |
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SED1278DOH Datasheet(HTML) 3 Page - Epson Company |
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3 / 13 page  3 SED1278F/D s ELECTRICAL CHARACTERISTICS q DC Characteristics r Write Cycle VIH1 VIL1 VIH2 VIL2 VOH1 VOL1 VOH2 VOL2 RCOM RSEG IIL —IP IOP fEXTCL Duty trEXTCL tfEXTCL fOSC fOSC VLCD Symbol IOH = –0.205mA IOL = 1.6mA IOH = –0.04mA IOL = 0.04mA VCOM—Vn =0.5V VSEG—Vn =0.5V VI = 0 to VDD VDD = 5V Rf = 91KΩ ±2% Ceramic filter VDD—V5 Condition 2.0 VSS VDD—1.0 VSS 2.4 — 0.9VDD — — — — 50 — 125 45 — — 190 245 3.0 Min. DB0~DB7 RS, R/W, E OSC1 DB0~DB7 VDD COM1~16 SEG1~40 Applicable Pin — — — — — — — — 2 2.5 — 125 250 50 — — 270 250 — 0.5 Typ. VDD 0.8 VDD 1.0 — 0.4 — 0.1VDD 10 10 1 250 350 55 0.2 0.2 350 255 VDD 0.8 Max. V V V V V V V V k Ω k Ω µA µA mA kHz % µS µS kHz kHz V Unit "H" level input voltage (1) "L" level input voltage (1) "H" level input voltage (2) "L" level input voltage (2) "H" level output voltage (1) "L" level output voltage (1) "H" level output voltage (2) "L" level output voltage (2) Driver-on resistor (COM) Driver-on resistor (SEG) I/O leakage current Pull-up MOS current Supply current External clock operation External clock operating frequency External clock duty External clock rise time External clock fall time Internal clock operation (Rf oscillation) Oscillation frequency Internal clock operation (Ceramic filter oscillation) Oscillation frequency LCD driving voltage Characteristic Rf oscillation, from external clock VDD = 5V, fosc = fCP = 270kHz (VDD = 5.0V±10%, VSS = 0V, Ta = –20 to 75°C) XSCL LP DO q AC Characteristics r Read Cycle tcycE tWEH trE, tfE tAS tAH tRD tDHR Symbol 500 220 — 40 10 — 20 Min. — — — — — — — Typ. — — 25 — — 120 — Max. ns ns ns ns ns ns ns Unit CL = 100pF Condition Enable cycle time Enable "H" level pulse width Enable rise/fall time RS, R W setup time RS, R W address hold time Read data output delay Read data hold time Characteristic (VDD = 5.0V±10%, VSS = 0V, Ta = –20 to 75°C) tcycE tWEH trE, tfE tAS tAH tDS tDH Symbol 500 220 — 40 10 60 10 Min. — — — — — — — Typ. — — 25 — — — — Max. ns ns ns ns ns ns ns Unit Condition Enable cycle time Enable "H" level pulse width Enable rise/fall time RS, R/W setup time RS, R/W address hold time Data setup time Write data hold time Characteristic (VDD=5.0V ±10%, V SS=0V, Ta=–20 to 75°C) |
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