Datasheet

 1995 Microchip Technology Inc. DS70010I-page 7
AY0438
2.0 ELECTRICAL CHARACTERISTICS
Maxim
um Ratings*
V
DD
..............................................................................................................................................................-0.3V to +12V
Inputs (CLK, Data In, Load) ................................................................................................................. V CC to V DD +0.3V
LCD Φ Input ........................................................................................................................................ -0.3V to V
DD
+0.3V
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
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.
TABLE 2: DC CHARACTERISTICS
TABLE 3: AC CHARACTERISTICS
V
DD
= +5V unless otherwise noted, T
A
= 40 ° C to +85 ° C
Characteristics Sym Min Typ Max Units Conditions
Supply Voltage V
DD
+3.0 — +8.5 V
Supply Current I
DD
—2560 µ A LCD Φ OSC < 15 kHz
—1330 µ A LCD Φ OSC < 100 Hz
Input High Level V
IH 0.5 V DD —V DD V
Input Low Level Clock V
IL
1 0 — 0.1 V
DD
V 3.0V ≤ V
DD
≤ 8.5V
Data, V
IL
2 0 — 0.1 V
DD
V 3.0V ≤ V
DD
≤ 8.5V
Input Leakage Current Load I
L
— 0.01 ± 10 µ AV
IN
= 0V and +5.0V
Input Capacitance C
I
— — 5.0 pF V
DD
= +5.0V
Segment Output Voltage V
OH
0.8 V
DD
—V
DD
VI
OH
= -100 µ A
V
OL
0 — 0.1 V
DD
VI
OL
= 100 µ A
LCD Φ Input High Level V
IN
0.9 V
DD
—V
DD
V
LCD Φ Input Low Level V
IL
0 — 0.1 V
DD
V
LCD Φ Input Leakage I L ——10 µ AV IN = 0V and +5.0V
V
DD
= +5.0V
Characteristics Sym Min Typ Max Units Conditions
Clock Rate f DC — 1.5 MHz 50% duty cycle
Data Set-up Time t
DS
150 — — nsec Data change to Clk falling edge
Data Hold Time t
DH
50 — — nsec
Load Pulse Width t
PW
175 — — nsec
Data Out Prop. Delay t
PD
— — 500 nsec C
L
= 55 pF