SN74LS247 BCD−to−Seven−Segment Decoders/Drivers The SN74LS247 is a BCD-to-Seven-Segment Decoder/Drivers. The LS247 composes the and with the tails. The LS247 has active-low outputs for direct drive of indicators. The LS247 features a lamp test input and have full ripple-blanking input/output controls. An automatic leading and/or trailing-edge zero-blanking .
a lamp test input and have full ripple-blanking input/output controls. An automatic leading and/or trailing-edge zero-blanking control (RBI and RBO) is incorporated and an overriding blanking input (BI) is contained which may be used to control the lamp intensity by pulsing or to inhibit the output’s lamp test may be performed at any time when the BI/RBO node is at high level. Segment identification and resultant displays are shown below. Display pattern for BCD input counts above 9 are unique symbols to authenticate input conditions.
• Open-Collector Outputs Drive Indicators Directly
• Lamp-T.
BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS The SN54/74LS247 thru SN54/74LS249 are BCD-to-Seven-Segment Decoder/Drivers. The L.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SN74LS240 |
ON Semiconductor |
Octal Buffer/Line Driver | |
2 | SN74LS240 |
Motorola |
OCTAL BUFFER/LINE DRIVER | |
3 | SN74LS240 |
Texas Instruments |
Octal Buffers and Line Drivers | |
4 | SN74LS241 |
Motorola |
OCTAL BUFFER/LINE DRIVER | |
5 | SN74LS241 |
Texas Instruments |
Octal Buffers and Line Drivers | |
6 | SN74LS242 |
Motorola |
QUAD BUS TRANSCEIVER | |
7 | SN74LS243 |
Motorola |
QUAD BUS TRANSCEIVER | |
8 | SN74LS243 |
Texas Instruments |
QUADRUPLE BUS TRANSCEIVERS | |
9 | SN74LS244 |
ON Semiconductor |
Octal Buffer/Line Driver | |
10 | SN74LS244 |
Motorola |
OCTAL BUFFER/LINE DRIVER | |
11 | SN74LS244 |
Texas Instruments |
Octal Buffers and Line Drivers | |
12 | SN74LS245 |
Motorola |
OCTAL BUS TRANSCEIVER |