 | DS1390U-18+ | 174 | Maxim Integrated Products | 19+ | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） | ￥3.8600 | IC RTC W/CHARGER 10-USOP | 购买 |
| DS1302ZN+ | 1052 | Maxim Integrated Products | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥3.9000 | IC TIMEKEEPER T-CHARGE IND 8SOIC | 购买 |
| DS12R885S-33+ | 106 | Maxim Integrated Products | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥4.1300 | IC RTC W/RAM 128 BYTE 24-SOIC | 购买 |
| DS1343E-3+T&R | 2499 | Maxim Integrated Products | 19+ | 20-TSSOP（0.173"，4.40mm 宽） | ￥0.0000 | IC RTC SPI 3.0V 20TSSOP | 购买 |
| DS1318E+ | 41 | Maxim Integrated Products | 19+ | 24-TSSOP（0.173"，4.40mm 宽） | ￥4.2800 | IC COUNTER ELAPSED TIME 24-TSSOP | 购买 |
| DS1302SN+ | 1826 | Maxim Integrated Products | 19+ | 8-SOIC（0.209"，5.30mm 宽） | ￥4.4500 | IC TIMEKEEPER T-CHARGE IND 8SOIC | 购买 |
| DS1307N+ | 476 | Maxim Integrated Products | 19+ | 8-DIP（0.300"，7.62mm） | ￥4.4500 | IC RTC SERIAL 512K IND 8-DIP | 购买 |
| DS1388Z-3+ | 274 | Maxim Integrated Products | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥5.1600 | IC RTC I2C W/CHARGER 8-SOIC | 购买 |
| DS1682S+ | 2317 | Maxim Integrated Products | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥5.6000 | IC TIMEKEEPER ALARM ELAPSE 8SOIC | 购买 |
| RX-5412SF: B3 PURE SN | 250 | EPSON | 19+ | 24-SOP（0.209"，5.30mm 宽） | ￥6.1690 | IC REAL TIME CLOCK 24-SOP | 购买 |
| DS1305E+ | 45 | Maxim Integrated Products | 19+ | 20-TSSOP（0.173"，4.40mm 宽） | ￥5.7300 | IC RTC SERIAL ALARM 20-TSSOP | 购买 |
| DS1305+ | 1756 | Maxim Integrated Products | 19+ | 16-DIP（0.300"，7.62mm） | ￥5.7300 | IC RTC SERIAL ALARM 16-DIP | 购买 |
| DS1338C-33# | 222 | Maxim Integrated Products | 19+ | 16-SOIC（0.295"，7.50mm 宽） | ￥6.1300 | IC RTC 56BIT NV SRAM 16-SOIC | 购买 |
| DS1306N+ | 1735 | Maxim Integrated Products | 19+ | 16-DIP（0.300"，7.62mm） | ￥6.3300 | IC RTC SERIAL ALARM 16-DIP | 购买 |
| DS1339C-33# | 2735 | Maxim Integrated Products | 19+ | 16-SOIC（0.295"，7.50mm 宽） | ￥6.4400 | IC RTC I2C W/ALARM 16-SOIC | 购买 |
| M41T94MH6F | 936 | STMicroelectronics | 19+ | 带 SNAPHAT 插座的 28-SOP（0.350"/8.89mm 宽） | ￥3.5505 | IC RTC SPI SRAM SER 64X8 28-SOIC | 购买 |
| M41T94MH6F | 936 | STMicroelectronics | 19+ | 带 SNAPHAT 插座的 28-SOP（0.350"/8.89mm 宽） | ￥3.5505 | IC RTC SPI SRAM SER 64X8 28-SOIC | 购买 |
| DS1685S-3+ | 69 | Maxim Integrated Products | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥6.9000 | IC RTC 3V 64-BIT Y2KC 24-SOIC | 购买 |
| DS1685E-5+ | 117 | Maxim Integrated Products | 19+ | 24-TSSOP（0.173"，4.40mm 宽） | ￥6.9300 | IC RTC 5V 64-BIT Y2KC 24-TSSOP | 购买 |
| DS1685EN-3+ | 405 | Maxim Integrated Products | 19+ | 24-TSSOP（0.173"，4.40mm 宽） | ￥7.9800 | IC RTC 3V 64BIT Y2KC IND 24TSSOP | 购买 |
