Specifications

3–8 EPSON
SED1210
VDD = 3 V
VSS = 0 V, Ta = –20 to 70°C
Parameter Symbol Condition
Rating
Unit Pin
min typ max
Liquid crystal display supply
V
LCD 3.5 — 5.5 V VLCD
voltage
Oscillator feedback resistor Rf VDD = 3.0 V, fOSC = 100 kHz 210 290 370 kΩ OSC1, OSC2
Oscillator frequency fOSC VDD = 3.0 V, Rf = 300 kΩ — 100 — kHz OSC1, OSC2
Operating frequency (1)
oscillator or external clock f
OSC VDD = 2.5 V — — 300 kHz OSC1
frequency
Operating frequency (2) Φ VDD = 2.5 to 4.5 V — — 1 MHz Φ
External clock duty VDD = 2.5 to 4.5 V — 50 — % OSC1, Φ
External clock rise time tr VDD = 2.5 to 4.5 V — — 50 ns OSC1, Φ
External clock fall time tf VDD = 2.5 to 4.5 V — — 50 ns OSC1, Φ
H-level input voltage (1) VIH1 VDD = 2.5 to 4.5 V 0.8 VDD — — V CS, RD, WR, A0
L-level input voltage (1) VIL1 VDD = 2.5 to 4.5 V — — 0.2 VDD V DB0 to DB7, Φ
H-level input voltage (2) VIH2 VDD = 2.5 to 4.5 V 0.8 VDD ——V
OSC1
L-level input voltabe (2) VIL2 VDD = 2.5 to 4.5 V — — 0.2 VDD V
H-level input leakage current ILIH VDD = 4.5 V — — — µA Φ, OSC1,
L-level input leakage current ILIL VDD = 4.5 V — — — µA DB0 to DB7
Input pull-up current IIPU VDD = 3.5 V — — — µA CS, RD, WR, A0
H-level output current (1) IOH1 VDD = 2.5 V, VOH = 2.0 V 200 — — µA
DB7
L-level output current (1) IOL1 VDD = 2.5 V, VOL = 0.5 V 200 — — µA
H-level output current (2) IOH2 VDD = 2.5 V, VOH = 2.0 V 200 — — µA FR, LP
L-level output current (2) IOL2 VDD = 2.5 V, VOL = 0.5 V 200 — — µA XSCL, SO
Common driver output current (1) IOH VDD level |-20| — — µA
Common driver output current (2) IOL VLCD level 20 — — µA
COM1 to COM16
Common driver output current (3) IOL VL1 level |±8| — — µA
Common driver output current (4) IOL VL4 level |±8| — — µA
Segment drivrer output current (1) IOH VDD level |–12| — — µA
Segment drivrer output current (2) IOL VLCD level 12 — — µA
SEG1 to SEG40
Segment drivrer output current (3) IOL VL2 level |±4| — — µA
Segment drivrer output current (4) IOL VL3 level |±4| — — µA
Driver current (1) IOH VDD–VLCD = 3.5 V — 2 — µA
VL2, VL3
Driver current (2) IOL 0.5 V voltage drop — 2 — µA
Voltage-divider resistor (1) Rd1 Normal conditions — 130 — kΩ
Voltage-divider resistor (2) Rd2 Low impedance state — 13 — kΩ
Voltage-divider resistor
tRd1/tRd2
1/8 Duty — 11/400 —
—
low impedance duty
1/16 Duty — 11/200 —
Command execuiton time tcomd
From WR rise time to
— — 16/Φµs
the end of internal processing
V
DD–VSS = 3.5 V
VDD–VLCD = 5 V
Average operating current I
DD Φ = 500 kHz — 60 — µAVDD
CS = RD = WR = A0 = VDD
Rf = 300 kΩ
VDD-VLCD = 3.5 V
Diving resistor in
low impedance
state.
1/16 duty
0.5 V voltage drop.
Measured on one
pin with other pins
open circuit.