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74273 |
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| Part Number | 74273 |
| Manufacturer | ON Semiconductor (https://www.onsemi.com/) |
| Description | The SN74LS273 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 set... |
| Features |
DIP (TOP VIEW)
VCC 20 Q7 19 D7 18 D6 17 Q6 16 Q5 15 D5 14 D4 13 Q4 12 CP 11
1 MR
2 Q0
3 D0
4 D1
5 Q1
6 Q2
7 D2
8 D3
9 Q3
10 GND
LOADING (Note a) PIN NAMES CP D0 – D7 MR Q0 – Q7 Clock (Active HIGH Going Edge) Input Data Inputs Master Reset (Active LOW) Input Register Outputs HIGH 0.5 U.L. 0.5 U.L. 0.5 U.L. 10 U.L. LOW 0.25 U.L. 0.25 U.L. 0.25 U.L. 5 U.L. NOTES: a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW. TRUTH TABLE MR L H H CP X Dx X H L Qx L H L H = HIGH Logic Level L = LOW Logic Level X = Immaterial LOGIC DIAGRAM 3 11 4 7 8 13 14 17 18 D0 D1 D2 D3 D4 D5 D6 D7 ... |
| Document |
 74273 Data Sheet
PDF 117.19KB |
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