NTE7447 Datasheet PDF Download, NTE





(PDF) NTE7447 Datasheet Download

Part Number NTE7447
Description TTL-BCD-to-Seven-Segment Decoder/Driver
Manufacture NTE
Total Page 4 Pages
PDF Download Download NTE7447 Datasheet PDF

Features: NTE7447 Integrated Circuit TTL − BCD to−Seven−Segment Decoder/Driver wi th Open Collector Outputs Description: The NTE7447 is a BCD−to−Seven−Se gment Decoder/Driver in a 16−Lead pla stic DIP type package that features act ive−low outputs designed for driving common−anode VLEDs or incandescent in dicators directly. This device has full ripple−blanking input/output control s and a lamp test input. Display patter ns for BCD input count above 9 are uniq ue symbols to authenticate input condit ions. The NTE7447 incorporates automati c leading and/or trailing−edge zero blanking control (RBI and RBO). Lamp t est (LT) may be performed at any time w hen the BI/RBO node is set at a high le vel. This device also contains an overr iding blanking input (BI) which can be used to control the lamp intensity by p ulsing or to inhibit the outputs. Input s and outputs are entirely compatible f or use with TTL logic outputs. Feature s: D Open−Collector Outputs Drive Indicators Directly D Lamp Test Provision D Leading/Tra.

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NTE7447
Integrated Circuit
TTL BCDtoSevenSegment Decoder/Driver
with Open Collector Outputs
Description:
The NTE7447 is a BCDtoSevenSegment Decoder/Driver in a 16Lead plastic DIP type package
that features activelow outputs designed for driving commonanode VLEDs or incandescent indicators
directly. This device has full rippleblanking input/output controls and a lamp test input. Display patterns
for BCD input count above 9 are unique symbols to authenticate input conditions.
The NTE7447 incorporates automatic leading and/or trailingedge zeroblanking control (RBI and
RBO). Lamp test (LT) may be performed at any time when the BI/RBO node is set at a high level. This
device also contains an overriding blanking input (BI) which can be used to control the lamp intensity
by pulsing or to inhibit the outputs. Inputs and outputs are entirely compatible for use with TTL logic
outputs.
Features:
D OpenCollector Outputs Drive Indicators Directly
D Lamp Test Provision
D Leading/Trailing Zero Suppression
Absolute Maximum Ratings: (Note 1)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Current Forced Into Any Output in the OffState . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mA
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65C to +150C
Note 1. Unless otherwise specified, all voltages are referenced to GND.
Recommended Operating Conditions:
Parameter
Supply Voltage
OffState Output Voltage (a through g)
OnState Output Current (a through g)
HighLevel Output Current (BI/RBO)
LowLevel Output Current (BI/RBO)
Operating Temperature Range
Symbol
VCC
VO(off)
IO(on)
IOH
IOL
TA
Min Typ Max Unit
4.75 5.0 5.25 V
− − 15 V
− − 40 mA
− − −200 A
− − 8 mA
0 +70 C

           






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