以下是8210040可替换型号：
- 8210040
- 443-802
- 74LS257
- 74LS257A
- 74LS257AN
- 74LS257APC
- 74LS257DC
- 74LS257N
- 74LS257PC
- 901521-57
- 9334DC
- 9334DM
- C74LS257P
- DM74LS257BN
- EAQOO-23600
- ECG74LS257
- HD74LS257
- HD74LS257P
- HE-443-1037
- HE-443-802
- HEPC74LS257P
- M74LS257AP
- MB74LS257
- MB74LS257M
- N74LS257AF
- N74LS257AN
- NTE74LS257
- SK74LS257
- SN74LS257
- SN74LS257AJ
- SN74LS257AJD
- SN74LS257AJDS
- SN74LS257AJS
- SN74LS257AN
- SN74LS257AND
- SN74LS257ANDS
- SN74LS257ANS
- SN74LS257BN
- SN74LS257J
- SN74LS257N
- SN74LS257X
- T74LS257B1
- TCG74LS257
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