 | PCF8523T/1,118 | 2500 | NXP Semiconductors | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥0.5292 | IC RTC/CALENDAR 8SOIC | 购买 |
| PCF8523TS/1,118 | 7500 | NXP Semiconductors | 19+ | 14-TSSOP（0.173"，4.40mm 宽） | ￥0.5488 | IC RTC/CALENDAR 14TSSOP | 购买 |
| PCF8563TS/4,118 | 10000 | NXP Semiconductors | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥0.8100 | IC REAL TIME CLK/CALENDAR 8TSSOP | 购买 |
| PCF8563TS/4,118 | 10000 | NXP Semiconductors | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥0.8100 | IC REAL TIME CLK/CALENDAR 8TSSOP | 购买 |
| PCA8565TS/1,118 | 2500 | NXP Semiconductors | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥0.8168 | IC CMOS RTC/CALENDAR 8-TSSOP | 购买 |
| PCA8565TS/1,118 | 2500 | NXP Semiconductors | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥0.8168 | IC CMOS RTC/CALENDAR 8-TSSOP | 购买 |
| PCF2123BS/1,512 | 706 | NXP Semiconductors | 19+ | 16-VFQFN 裸露焊盘 | ￥1.2700 | IC CLOCK HVQFN16 | 购买 |
| PCA21125T/Q900/1,1 | 5000 | NXP Semiconductors | 19+ | 14-TSSOP（0.173"，4.40mm 宽） | ￥1.2825 | IC CLOCK/CALENDAR TSSOP14 | 购买 |
| PCF8523TS/1,112 | 2327 | NXP Semiconductors | 19+ | 14-TSSOP（0.173"，4.40mm 宽） | ￥1.3700 | IC RTC/CALENDAR 14TSSOP | 购买 |
| PCF8593T/1,118 | 7500 | NXP Semiconductors | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥1.3965 | IC CLOCK/CALENDAR LOW PWR 8-SOIC | 购买 |
| PCF8563T/F4,112 | 4592 | NXP Semiconductors | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥1.8600 | IC REAL TIME CLK/CALENDAR 8-SOIC | 购买 |
| PCF8583P/F5,112 | 1611 | NXP Semiconductors | 19+ | 8-DIP（0.300"，7.62mm） | ￥3.2800 | IC CLK/CALENDAR 240X8 RAM 8-DIP | 购买 |
| PT7C4563UEX | 3000 | Pericom | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥0.5600 | IC REAL TIME CLOCK 8MSOP | 购买 |
| PT7C43390WEX | 3000 | Pericom | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥0.5880 | IC REAL TIME CLOCK 8SOIC | 购买 |
| PT7C43390WEX | 3000 | Pericom | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥0.5880 | IC REAL TIME CLOCK 8SOIC | 购买 |
| M41T65Q6F | 3000 | STMicroelectronics | 19+ | 16-QFN | ￥0.9315 | IC RTC SERIAL W/ALARM 16QFN | 购买 |
| M41T65Q6F | 3000 | STMicroelectronics | 19+ | 16-QFN | ￥0.9315 | IC RTC SERIAL W/ALARM 16QFN | 购买 |
| M41T65Q6F | 3000 | STMicroelectronics | 19+ | 16-QFN | ￥0.9315 | IC RTC SERIAL W/ALARM 16QFN | 购买 |
| M41T62Q6F | 9000 | STMicroelectronics | 19+ | 16-QFN | ￥0.9680 | IC RTC SERIAL W/ALARM 16QFN | 购买 |
| M41T62Q6F | 9000 | STMicroelectronics | 19+ | 16-QFN | ￥0.9680 | IC RTC SERIAL W/ALARM 16QFN | 购买 |
