 | RX-4574LC:B3 PURE SN | 500 | EPSON | 19+ | 12-TSSOJ | ￥3.3000 | IC REAL TIME CLOCK 12-VSOJ | 购买 |
| DS1308U-18+ | 52 | Maxim Integrated Products | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥3.5900 | IC RTC 56BYTE NVRAM I2C 8UMAX | 购买 |
| DS1374U-33+ | 2889 | Maxim Integrated Products | 19+ | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） | ￥3.8500 | IC RTC I2C W/CHARGER 10-USOP | 购买 |
| DS1391U-3+ | 93 | Maxim Integrated Products | 19+ | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） | ￥3.8600 | IC RTC W/CHARGER 10-USOP | 购买 |
| DS1338C-33#T&R | 1000 | Maxim Integrated Products | 19+ | 16-SOIC（0.295"，7.50mm 宽） | ￥2.7795 | IC RTC 56BYTE NV SRAM 16SOIC | 购买 |
| DS1501YE+ | 250 | Maxim Integrated Products | 19+ | 28-TSSOP（0.465"，11.8mm 宽） | ￥13.0000 | IC RTC WDOG Y2K 5V 28-TSOP | 购买 |
| DS1685Q-5+ | 12 | Maxim Integrated Products | 19+ | 28-LCC（J 形引线） | ￥7.3500 | IC RTC 5V 64-BIT Y2KC 28-PLCC | 购买 |
| DS1501YZ+ | 250 | Maxim Integrated Products | 19+ | 28-SOIC（0.295"，7.50mm 宽） | ￥11.8000 | IC RTC WDOG Y2KC 5.0V 28-SOIC | 购买 |
| DS1315-5+ | 34 | Maxim Integrated Products | 19+ | 16-DIP（0.300"，7.62mm） | ￥17.6100 | IC TIME CHIP PHANTOM 5V 16-DIP | 购买 |
| DS3232MZ+ | 132 | Maxim Integrated Products | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥8.8100 | IC RTC W/SRAM I2C 8SOIC | 购买 |
| DS12CR887-5+ | 41 | Maxim Integrated Products | 19+ | 24-DIP 模块（0.600"，15.24mm） | ￥14.1100 | IC RTC W/RAM 128 BYTE 24-EDIP | 购买 |
| DS17885E-3+ | 2 | Maxim Integrated Products | 19+ | 28-TSSOP（0.465"，11.8mm 宽） | ￥21.1500 | IC RTC 3V 8K NV RAM 28-TSOP | 购买 |
| DS1554-70IND+ | 22 | Maxim Integrated Products | 19+ | 32-DIP 模块（0.600"，15.24mm） | ￥41.3800 | IC RTC RAM Y2K 5V 70NS 32-EDIP | 购买 |
| DS1743-85+ | 5 | Maxim Integrated Products | 19+ | 28-DIP 模块（0.600"，15.24mm） | ￥28.5300 | IC RTC RAM Y2K 5V 85NS 28-EDIP | 购买 |
| DS1746W-120IND+ | 25 | Maxim Integrated Products | 19+ | 32-DIP 模块（0.600"，15.24mm） | ￥51.0400 | IC RTC RAM Y2K 3.3V 120NS 32EDIP | 购买 |
| LTC6905CS5-100#TRMPBF | 1000 | Linear Technology | 19+ | SOT-23-5 细型，TSOT-23-5 | ￥1.4100 | IC OSC SILICON 100MHZ TSOT23-5 | 购买 |
| NE555DR | 12500 | Texas Instruments | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥0.1008 | IC OSC MONO TIMING 500KHZ 8-SOIC | 购买 |
| NA555DR | 10000 | Texas Instruments | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥0.1008 | IC OSC MONO TIMING 8-SOIC | 购买 |
| NA555DR | 10000 | Texas Instruments | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥0.1008 | IC OSC MONO TIMING 8-SOIC | 购买 |
| NE555PSR | 6000 | Texas Instruments | 19+ | 8-SOIC（0.209"，5.30mm 宽） | ￥0.1023 | IC OSC MONO TIMING 500KHZ 8-SOP | 购买 |
