Datasheet Details
| Part number | 74LS273 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 184.87 KB |
| Description | OCTAL D FLIP-FLOP |
| Datasheet | 74LS273_MotorolaInc.pdf |
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Overview: OCTAL D FLIP-FLOP WITH CLEAR The SN54 / 74LS273 is a high-speed 8-Bit Register. The register consists of eight D-Type Flip-Flops with a Common Clock and an asynchronous active LOW Master Reset. This device is supplied in a 20-pin package featuring 0.3 inch lead spacing. SN54/74LS273 • • • • 8-Bit High Speed Register Parallel Register Common Clock and Master Reset Input Clamp Diodes Limit High-Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC 20 Q7 19 D7 18 D6 17 Q6 16 Q5 15 D5 14 D4 13 Q4 12 CP 11 OCTAL D FLIP-FLOP WITH CLEAR LOW POWER SCHOTTKY 20 1 J SUFFIX CERAMIC CASE 732-03 1 MR 2 Q0 3 D0 4 D1 5 Q1 6 Q2 7 D2 8 D3 9 Q3 10 GND 20 1 N SUFFIX PLASTIC CASE 738-03 PIN NAMES LOADING (Note a) HIGH LOW 0.25 U.L. 0.25 U.L. 0.25 U.L. 5 (2.5) U.L. CP D0 – D7 MR Q0 – Q7 Clock (Active HIGH Going Edge) Input Data Inputs Master Reset (Active LOW) Input Register Outputs (Note b) 0.5 U.L. 0.5 U.L. 0.5 U.L. 10 U.L. 20 1 DW SUFFIX SOIC CASE 751D-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 | 74LS273 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 184.87 KB |
| Description | OCTAL D FLIP-FLOP |
| Datasheet | 74LS273_MotorolaInc.pdf |
|
|
|
The SN54 / 74LS273 is an 8-Bit Parallel Register with a common Clock and common Master Reset.
When the MR input is LOW, the Q outputs are LOW, independent of the other inputs.
Information meeting the setup and hold time requirements of the D inputs is transferred to the Q outputs on the LOW-to-HIGH transition of the clock input.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
74LS273 | OCTAL POSITIVE EDGE-TRIGGERED D-TYPE FLIP-FLOP | Mitsubishi Electric Semiconductor |
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74LS273 | LOW POWER SCHOTTKY | ON Semiconductor |
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74LS273 | 8-Bit Register | Fairchild Semiconductor |
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74LS273 | Octal D-type Positive-edge-triggered Flip-Flops | Hitachi Semiconductor |
 |
74LS273 | 8-Bit Register | National Semiconductor |
| Part Number | Description |
|---|---|
| 74LS20 | DUAL 4-INPUT NAND GATE |
| 74LS21 | DUAL 4-INPUT AND GATE |
| 74LS22 | DUAL 4-INPUT NAND GATE |
| 74LS241 | OCTAL BUFFER/LINE DRIVER |
| 74LS256 | DUAL 4-BIT ADDRESSABLE LATCH |
| 74LS257B | QUAD 2-INPUT MULTIPLEXER |
| 74LS258B | QUAD 2-INPUT MULTIPLEXER |
| 74LS26 | QUAD 2-INPUT NAND BUFFER |
| 74LS260 | DUAL 5-INPUT NOR GATE |
| 74LS28 | QUAD 2-INPUT NOR BUFFER |