HD66421TB0 HITACHI [Hitachi Semiconductor], HD66421TB0 Datasheet - Page 44

• Manufacturer Part Number: HD66421TB0
• Description: (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
• Manufacturer: HITACHI [Hitachi Semiconductor]

Electrical Characteristics
Notes: 1 Applies to pins: M/S, CS, RS, WR, RD, RES, OSC, DB7 to DB0, CL1, M and FLM
DC Characteristics (Vcc=2.2 to 5.5V, GND=0V, VLCD=6 to 18V, Ta=-40 to +85°C Note 9)
Item
I/O leakage
current
V-pins leakage
current
Driver on
resistance
Input high
voltage
Input low
voltage
Output high
voltage
Output low
voltage
Current
consumption
during display
Current
consumption
during standby
Current
consumption in
LCD drive part
Preliminary
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
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
6 Specified under following conditions:
7 Measured during stand-by mode.
8 Specified under following conditions:
9. All electrical characteristic are guaranteed at +85°C for die products.
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
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.
Internal oscillator is used; Rf = 180k
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
Vcc = 3.0V
Internal power supply circuit is used.
Resister value is 5M which is connected between IREFM and GND
Vcc = 3.0V, VLCD = 15V, IREFP = Vcc, GREF = GND
Symbol
IIOL
IVL
Ron
VIH1
VIL1
VOH
VOL
Idisp
Istb
Ilcd
SEG1 to SEG160
COM1 to COM100
Applicable
Pins
DB7 to DB0
DB7 to DB0
Vcc
Vcc
VLCD
0.8xVcc
0.8xVcc
min.
-10
-1
0
0
-
-
-
44
Typ
1
-
-
-
-
-
-
0.2xVcc
0.2xVcc
T.B.D
T.B.D
Max
Vcc
Vcc
10
20
5
1
Unit
µA
µA
µA
µA
µA
k
V
V
V
V
Measurement
Condition
Vin=Vcc to GND
Vin=GND to VLCD
Ion = 100µA
VLCD = 6V
IoH=-50µA
IoL=50µA
Vcc = 3.0V
Rf = 180k
Rev. 1.1E '99.02.10
HD66421
Notes
1
2
3
1
1
4
4
5, 6
5, 7
5, 8