HD66421 Datasheet, PDF (44/46 Pages) Hitachi Semiconductor – (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)

Preliminary
Rev. 1.1E '99.02.10
HD66421
Electrical Characteristics
DC Characteristics (Vcc=2.2 to 5.5V, GND=0V, VLCD=6 to 18V, Ta=-40 to +85°C Note 9)
Applicable
Measurement
Item
Symbol Pins
min. Typ Max Unit Condition
Notes
I/O leakage
current
IIOL
-1
-
1
µA ^{Vin=Vcc to GND 1}
V-pins leakage
current
IVL
-10
-
10 _µA Vin=GND to VLCD 2
Driver on
resistance
Ron
SEG1 to SEG160
COM1 to COM100
20
kΩ
Ion = 100µA
VLCD = 6V
3
Input high
voltage
VIH1
0.8xVcc -
Vcc V
1
Input low
voltage
VIL1
0
- 0.2xVcc V
1
Output high
voltage
VOH DB7 to DB0
0.8xVcc -
Vcc V IoH=-50µA
4
Output low
voltage
VOL DB7 to DB0
0
- 0.2xVcc V IoL=50µA
4
Current
consumption
Idisp
Vcc
during display
-
T.B.D µA ^{Vcc = 3.0V}
5, 6
Rf = 180kΩ
Current
consumption
Istb
Vcc
-
1
5
µA
5, 7
during standby
Current
consumption in Ilcd
VLCD
-
T.B.D µA
5, 8
LCD drive part
Notes: 1 Applies to pins: M/S, CS, RS, WR, RD, RES, OSC, DB7 to DB0, CL1, M and FLM
2 Applies to pins: V0O, V1O, V2O, V3O, V4O and V5O
3 Indicates the resistance between one pin from SEG1 to SEG160,COM1 to COM100 from V1O to V5O
V1O and V2O should be near VLCD level, and V3O to V5O should be near GND level. All voltage
must be within ∆V.∆V is the range within which Ron is stable. V1 to V4 levels should keep following
condition:VLCD≥V1O≥V2O≥V3O≥V4O≥V5O≥GND
4 Applies to pins: DB7-DB0, CO, CL1, M and FLM
5 Input and output current are excluded. When a CMOS input is floating, excess current flows from power
supply to the input circuit. To avoid this, ViH and ViL must be held to Vcc and GND levels, respectively.
The current which flows at resistive divider and LCD are excluded.
Where the unmolded side of LSI is exposed to light , excess current flows. Use under sealed condition.
6 Specified under following conditions:
Internal oscillator is used; Rf = 180kΩ
32-levels gray scale mode; GRAY = 0
CO,CL1,FLM,M stop; CLE = 1
Vcc = 3.0V
Checker board is displayed
No access fro CPU
7 Measured during stand-by mode.
Vcc = 3.0V
8 Specified under following conditions:
Internal power supply circuit is used.
Resister value is 5MΩ which is connected between IREFM and GND
Vcc = 3.0V, VLCD = 15V, IREFP = Vcc, GREF = GND
9. All electrical characteristic are guaranteed at +85°C for die products.
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