 | DS12885S+ | 76 | Maxim Integrated Products | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥7.2100 | IC RTC W/RAM 128 BYTE 24-SOIC | 购买 |
| DS3232S# | 7727 | Maxim Integrated Products | 19+ | 20-SOIC（0.295"，7.50mm 宽） | ￥8.6100 | IC RTC W/TCXO 20-SOIC | 购买 |
| DS12885Q+ | 50 | Maxim Integrated Products | 19+ | 28-LCC（J 形引线） | ￥8.6400 | IC RTC W/RAM 128 BYTE 28-PLCC | 购买 |
| DS3232SN# | 1194 | Maxim Integrated Products | 19+ | 20-SOIC（0.295"，7.50mm 宽） | ￥9.9100 | IC RTC I2C W/TCXO 20-SOIC | 购买 |
| DS17285S-5+ | 51 | Maxim Integrated Products | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥10.1700 | IC RTC 5V 2K NV RAM 24-SOIC | 购买 |
| DS12887+ | 1099 | Maxim Integrated Products | 19+ | 24-DIP 模块（0.600"，15.24mm） | ￥11.7700 | IC RTC W/RAM 128 BYTE 24-EDIP | 购买 |
| DS1673E-3+ | 216 | Maxim Integrated Products | 19+ | 20-TSSOP（0.173"，4.40mm 宽） | ￥10.6600 | IC CTRLR SYSTEM PORT 3V 20-TSSOP | 购买 |
| DS1673S-3+ | 448 | Maxim Integrated Products | 19+ | 20-SOIC（0.295"，7.50mm 宽） | ￥10.9200 | IC CTRLR SYSTEM PORT 3V 20-SOIC | 购买 |
| DS17285SN-5+ | 97 | Maxim Integrated Products | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥11.1900 | IC RTC 5V 2K NV RAM 24-SOIC | 购买 |
| DS1558W+ | 514 | Maxim Integrated Products | 19+ | 48-LQFP | ￥11.5700 | IC RTC W/NV RAM 3.3V 48-LQFP | 购买 |
| DS1558Y+ | 350 | Maxim Integrated Products | 19+ | 48-LQFP | ￥11.5700 | IC RTC W/NV RAM 5V 48-TQFP | 购买 |
| DS1501YZN+ | 1 | Maxim Integrated Products | 19+ | 28-SOIC（0.295"，7.50mm 宽） | ￥13.5900 | IC RTC WDOG Y2KC 5.0V 28-SOIC | 购买 |
| DS1687-5+ | 1298 | Maxim Integrated Products | 19+ | 24-DIP 模块（0.600"，15.24mm） | ￥15.5300 | IC RTC 5V 64-BIT Y2K 24-EDIP | 购买 |
| DS1500YEN+ | 91 | Maxim Integrated Products | 19+ | 32-LFSOP（0.724"，18.40mm 宽） | ￥16.0200 | IC RTC Y2KC W/NV CTRL 5V 32TSOP | 购买 |
| DS1315-33+ | 160 | Maxim Integrated Products | 19+ | 16-DIP（0.300"，7.62mm） | ￥17.6100 | IC T-CHIP PHANTOM 3.3V 16-DIP | 购买 |
| DS1687-3IND+ | 242 | Maxim Integrated Products | 19+ | 24-DIP 模块（0.600"，15.24mm） | ￥19.1200 | IC RTC 3V 64-BIT Y2K 24-EDIP | 购买 |
| DS17287-5+ | 140 | Maxim Integrated Products | 19+ | 24-DIP 模块（0.600"，15.24mm） | ￥19.3500 | IC RTC 5V 2K NV RAM 24-EDIP | 购买 |
| DS1243Y-120+ | 425 | Maxim Integrated Products | 19+ | 28-DIP 模块（0.600"，15.24mm） | ￥19.7200 | IC NVSRAM 64KBIT 120NS 28DIP | 购买 |
| M48T37V-10MH1F | 1872 | STMicroelectronics | 19+ | 带 SNAPHAT 插座的 44-SOP（0.337"/8.56mm 宽） | ￥12.6794 | IC TIMEKPR NVRAM 256KB 3V 44-SOH | 购买 |
| DS17885S-3+ | 208 | Maxim Integrated Products | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥19.9200 | IC RTC 3V 8K NV RAM 24-SOIC | 购买 |
