以下是DM74LS40N可替换型号:
- 74LS40DC
- 74LS40PC
- DM74LS40N
- ECG74LS40
- HD74LS40
- HD74LS40P
- LS40
- M74LS40P
- MB74LS40
- MB74LS40M
- N74LS40F
- N74LS40N
- NTE74LS40
- SK74LS40
- SN74LS40
- SN74LS40J
- SN74LS40JD
- SN74LS40JDS
- SN74LS40JS
- SN74LS40N
- SN74LS40ND
- SN74LS40NDS
- SN74LS40NS
- T74LS40B1
- T74LS40D1
- TCG74LS40
- X420500400
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