HD66520 Datasheet, PDF (39/45 Pages) Hitachi Semiconductor – 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM

HD66520T
DC Characteristics 2 (V_CC = 3.0 to 4.5V, GND = 0V, V_CC–V_EE = 8 to 28V, Ta = –20 to +75°C)
Item
Applicable
Symbol Pins
Min
Typ Max
Measurement
Unit Condition
Notes
Input high level VIH1
LS0–1, SHL, 0.8 × V_CC — V_CC
V
voltage (1)
FLM, CL1, M,
Input low level VIL1
',632))
0
voltage (1)
— 0.2 × V_CC V
Input high level VIH2
DB0 to DB7, 0.7 × V_CC — V_CC
V
voltage (2)
CS, A0 to
A15,
Input low level VIL2
:(2(
0
voltage (2)
— 0.15 × V_CC V
Output high VOH
level voltage
DB0 to DB7 0.9 × V_CC — —
V
I_OH = –50 µA
Output low VOL
level voltage
—
— 0.1 × V_CC V
I_OL = 50 µA
Current
I_CC
consumption
during RAM
access
Measurement —
pin V_CC
8 10
mA Access time
2
600 ns
V_CC = 3.3V
Current
I_EE
consumption in
LCD drive part
Current
I_DIS
consumption
during display
operation
Measurement —
pin V_EE
Measurement —
pin GND
200 300
40 60
µA V_CC–V_EE = 28V 2, 3
V_CC = 3.3V
t_CYC = 59.5 µs
µA ^{No access}
Notes: 2. Input and output currents are excluded. When a CMOS input is floating, excess current flows
from the power supply through to the input circuit. To avoid this, VIH and VIL must be held to
V_CC and GND levels, respectively.
3. Indicates the current when the memory access is stopped and the still image of a zig-zag
pattern is displayed in its place.
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