Datasheet Details
| Part number | SN54LS42 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 77.36 KB |
| Description | ONE-OF-TEN DECODER |
| Datasheet | SN54LS42_MotorolaInc.pdf |
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Overview: SN54/74LS42 ONE-OF-TEN DECODER The LSTTL / MSI SN54 / 74LS42 is a Multipurpose Decoder designed to accept four BCD inputs and provide ten mutually exclusive outputs. The LS42 is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all Motorola TTL families. ONE-OF-TEN DECODER LOW POWER SCHOTTKY • • • • Multifunction Capability Mutually Exclusive Outputs Demultiplexing Capability Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 A0 15 A1 14 A2 13 A3 12 9 11 8 10 7 9 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 16 1 J SUFFIX CERAMIC CASE 620-09 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 GND 16 1 N SUFFIX PLASTIC CASE 648-08 PIN NAMES LOADING (Note a) HIGH LOW 0.25 U.L. 5(2.5) U.L. 16 1 A0 – A3 0 to 9 Address Inputs Outputs, Active LOW (Note b) 0.5 U.L. 10 U.L. D SUFFIX SOIC CASE 751B-03 NOTES: a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW. b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74) Temperature Ranges.
| Part number | SN54LS42 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 77.36 KB |
| Description | ONE-OF-TEN DECODER |
| Datasheet | SN54LS42_MotorolaInc.pdf |
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The LS42 decoder accepts four active HIGH BCD inputs and provides ten mutually exclusive active LOW outputs, as shown by logic symbol or diagram.
The active LOW outputs facilitate addressing other MSI units with LOW input enables.
The logic design of the LS42 ensures that all outputs are HIGH when binary codes greater than nine are applied to the inputs.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
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SN54LS42 | 4-LINE BCD TO 10-LINE DECIMAL DECODERS | Texas Instruments |
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SN54LS422 | Retriggerable Monostable Multivibrator | Texas Instruments |
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SN54LS423 | Retriggerable Monostable Multivibrator | Texas Instruments |
| Part Number | Description |
|---|---|
| SN54LS40 | DUAL 4-INPUT NAND BUFFER |
| SN54LS47 | BCD TO 7-SEGMENT DECODER/DRIVER |
| SN54LS48 | BCD TO 7-SEGMENT DECODER |
| SN54LS490 | DUAL DECADE COUNTER |
| SN54LS00 | QUAD 2-INPUT NAND GATE |
| SN54LS01 | QUAD 2-INPUT NAND GATE |
| SN54LS02 | QUAD 2-INPUT NOR GATE |
| SN54LS03 | QUAD 2-INPUT NAND GATE |
| SN54LS04 | HEX INVERTER |
| SN54LS05 | HEX INVERTER |