以下是HD74LS20可替换型号:
- 3102011
- 443-798
- 74LS20
- 74LS20CH
- 74LS20DC
- 74LS20J
- 74LS20N
- 74LS20PC
- 74LS20W
- AMX3555
- C74LS20P
- DM74LS20N
- ECG74LS20
- HD74LS20
- HD74LS20P
- HE-443-798
- HEPC74LS20P
- IC-74LS20
- LS20
- M74LS20P
- MB74LS20
- MB74LS20M
- N74LS20F
- N74LS20N
- NTE74LS20
- SK74LS20
- SN74LS20
- SN74LS20J
- SN74LS20JD
- SN74LS20JDS
- SN74LS20JS
- SN74LS20N
- SN74LS20ND
- SN74LS20NDS
- SN74LS20NS
- SN74LS20W
- T74LS20B1
- T74LS20D1
- TCG74LS20
- X420300200
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