ay0438 Microchip Technology Inc., ay0438 Datasheet - Page 7

• Manufacturer Part Number: ay0438
• Description: 32-segment Cmos Lcd Driver
• Manufacturer: Microchip Technology Inc.

2.0
Maximum Ratings*
V
Inputs (CLK, Data In, Load) ................................................................................................................. V
LCD Input ........................................................................................................................................ -0.3V to V
Power Dissipation.................................................................................................................................................250 mW
Storage Temperature............................................................................................................................... -65˚C to +125˚C
Operating Temperature Industrial.............................................................................................................. -40˚C to +85˚C
* Exceeding these ratings could cause permanent damage to the device. This is a stress rating only and functional
TABLE 2: DC CHARACTERISTICS
TABLE 3: AC CHARACTERISTICS
V
Supply Voltage
Supply Current
Input High Level
Input Low Level
Input Leakage Current
Input Capacitance
Segment Output Voltage
LCD Input High Level
LCD Input Low Level
LCD Input Leakage
Clock Rate
Data Set-up Time
Data Hold Time
Load Pulse Width
Data Out Prop. Delay
DD
1995 Microchip Technology Inc.
operation of this device at these conditions is not implied. Operating ranges are specified in Standard Conditions.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Data labeled “typical” is presented for design guidance only and is not guaranteed.
DD
.............................................................................................................................................................. -0.3V to +12V
= +5V unless otherwise noted, T
Characteristics
ELECTRICAL CHARACTERISTICS
Characteristics
Clock
Data,
Load
Sym
t
t
t
t
PW
DH
DS
PD
f
Sym
A
V
V
V
V
V
I
V
V
V
C
DD
I
I
IL
IL
OH
DD
OL
= 40 C to +85 C
IH
L
IN
L
IL
I
1
2
Min
150
175
DC
50
—
0.5 V
0.8 V
0.9 V
+3.0
Min
—
—
—
—
—
0
0
0
0
DD
DD
DD
Typ
—
—
—
—
—
0.01
Typ
25
13
—
—
—
—
—
—
—
—
—
—
Max
500
1.5
—
—
—
0.1 V
0.1 V
0.1 V
0.1 V
Max
+8.5
V
V
V
5.0
60
30
10
DD
10
DD
DD
DD
DD
DD
DD
Units
MHz
nsec Data change to Clk falling edge
nsec
nsec
nsec C
Units
pF
V
V
V
V
V
V
V
V
A
A
A
A
L
= 55 pF
LCD OSC < 15 kHz
LCD OSC < 100 Hz
3.0V
3.0V
V
V
I
I
V
V
OH
OL
IN
DD
IN
DD
= 100 A
= 0V and +5.0V
= -100 A
= 0V and +5.0V
50% duty cycle
= +5.0V
= +5.0V
Conditions
V
V
Conditions
DD
DD
AY0438
CC
DS70010I-page 7
8.5V
8.5V
to V
DD
DD
+0.3V
+0.3V