NTE2021 NTE Electronics, Inc., NTE2021 Datasheet
NTE2021
Manufacturer Part Number
NTE2021
Description
NTE2021 & NTE2022, Integrated Circuit 8 Digit/segment Fluorescent Display Driver
Manufacturer
NTE Electronics, Inc.
Datasheet
1.NTE2021.pdf
(3 pages)
Description:
The NTE2021 and NTE2022 consist of eight NPN Darlington output stages and the associated com-
mon–emitter input stages in an 18–Lead DIP type package. These devices are designed to interface
between low–level digital logic and vacuum fluorescent displays. They are capable of driving the dig-
its and/or segments of these displays and are designed to permit all outputs to be activated simulta-
neously. Pulldown resistors are incorporated into each output and no external components are re-
quired for most fluorescent displays.
The NTE2020 is compatible with TTL, Schottky TTL, DTL and 5V CMOS. The NTE2021 device is
intended for use with MOS (PMOS & CMOS) logic operating from supply voltages of 6V to 15V.
Features:
D Digit or Segment Drivers
D Low Input Current
D Integral Output Pull–Down Resistors
D Low Power
D Reliable Monolithic Construction
D High Output Breakdown Voltage
Absolute Maximum Ratings: (T
Supply Voltage, V
Input Voltage, V
Output Current, I
Allowable Power Dissipation, P
Operating Temperature Range, T
Storage Temperature Range, T
Note 1. Voltages are with reference to GND unless otherwise specified
Recommended Operating Conditions:
Note 2. Positive (negative) current is defined as going into (coming out of) the specified device pin.
Supply Voltage
Input ON Voltage
Output ON Current
NTE2022
NTE2021
Derate Above 25 C
Parameter
IN
OUT
8–Digit/Segment Fluorescent Display Driver
BB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
D
A
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NTE2021 & NTE2022
Symbol
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
= +25 C, Note 1)
I
V
Integrated Circuit
V
OUT
BB
IN
Test Conditions
Min
2.4
4.0
5
–
Typ
–
–
–
–
–55 to +150 C
–20 to +85 C
Max Unit
–25
70
15
15
8.0mW/ C
–40mA
mA
V
V
V
85V
20V
1W
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NTE2021 Summary of contents
Page 1
... Pulldown resistors are incorporated into each output and no external components are re- quired for most fluorescent displays. The NTE2020 is compatible with TTL, Schottky TTL, DTL and 5V CMOS. The NTE2021 device is intended for use with MOS (PMOS & CMOS) logic operating from supply voltages 15V. ...
Page 2
... Electrical Characteristics: (T Parameter Output Leakage Current Output OFF Voltage Output Pull–Down Current Output ON Voltage NTE2021 NTE2022 Input ON Current NTE2021 NTE2022 Supply Current NTE2021 & NTE2022 NTE2021 NTE2022 Partial Schematic (One Driver) 30k 27k Input GND = – 80V unless otherwise specified) ...
Page 3
Max .115 (2.92) Min ...