芯片上丝印的datacode如何识别？请斑竹指点，举例如下：[原创] 芯片, datacode, 丝印, 斑竹, 举例

zam_197933

四双向模拟开关CD4016（贴片）其丝印的datacode: P01185F

                                            CD401616BCN

双可再触发单稳态多谐振荡器74HC123(直插)其丝印的datacode: 74HC123D

                                                          E1367 12

                                                          Unn0202 D

MAX232其丝印的datacode: MAXIM

                       MAX232CPE

                        0414

 请斑竹指点：如何判定生产日期的时间？在这里先谢谢斑竹了！