 | SN74ALS163BD | 104 | Texas Instruments | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥1.3300 | IC SYNC 4BIT DEC/BIN CNTR 16SOIC | 购买 |
| CD40102BE | 246 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.3600 | IC SYNC DOWN COUNTER 8STG 16-DIP | 购买 |
| CD74HC40103E | 278 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.3700 | IC 8-STAGE DOWN COUNTER 16-DIP | 购买 |
| CD74HC93M | 776 | Texas Instruments | 19+ | 14-SOIC（0.154"，3.90mm 宽） | ￥1.4700 | IC COUNTER BINARY 4BIT 14SOIC | 购买 |
| SN74LS390N | 662 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.5500 | IC 4BIT DECADE/BIN COUNT 16-DIP | 购买 |
| CY74FCT163CTSOC | 390 | Texas Instruments | 19+ | 16-SOIC（0.295"，7.50mm 宽） | ￥1.6100 | IC SYNC 4-BIT BIN CNTR 16-SOIC | 购买 |
| CD74HC93E | 386 | Texas Instruments | 19+ | 14-DIP（0.300"，7.62mm） | ￥1.7100 | IC COUNTER 4-BIT BIN RIP 14-DIP | 购买 |
| SN74ALS169BD | 295 | Texas Instruments | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥2.1700 | IC COUNTER BIN 4BIT U/D 16-SOIC | 购买 |
| SN74LS93D | 240 | Texas Instruments | 19+ | 14-SOIC（0.154"，3.90mm 宽） | ￥2.7900 | IC 4-BIT BINARY COUNTER 14-SOIC | 购买 |
| SN74ALS191AN | 115 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥2.9400 | IC SYNC UP/DOWN BIN CNTR 16-DIP | 购买 |
| SN74LS697N | 82 | Texas Instruments | 19+ | 20-DIP（0.300"，7.62mm） | ￥6.6300 | IC SYNC UP/DN BINARY CNTR 20-DIP | 购买 |
| SN74AS867NT | 47 | Texas Instruments | 19+ | 24-DIP（0.300"，7.62mm） | ￥11.3300 | IC SYNC UP/DOWN COUNTER 24-DIP | 购买 |
| HEF4017BP,652 | 1384 | NXP Semiconductors | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.2500 | IC COUNTER 5STAGE JOHNSON 16DIP | 购买 |
| 74HCT393N,652 | 1664 | NXP Semiconductors | 19+ | 14-DIP（0.300"，7.62mm） | ￥1.2700 | IC COUNTER DUAL 4BIT BIN 14DIP | 购买 |
| 74HCT4017D,653 | 2500 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.2961 | IC JOHNSON DECADE COUNTER 16SOIC | 购买 |
| 74HCT4017D,653 | 2500 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.2961 | IC JOHNSON DECADE COUNTER 16SOIC | 购买 |
| 74HC4017N,652 | 1684 | NXP Semiconductors | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.6700 | IC COUNTER 5STAGE JOHNSON 16DIP | 购买 |
| 74HC4024N,652 | 1813 | NXP Semiconductors | 19+ | 14-DIP（0.300"，7.62mm） | ￥1.5500 | IC COUNTER 7STAGE BINARY 14DIP | 购买 |
| 74HCT4020PW,112 | 1 | NXP Semiconductors | 19+ | 16-TSSOP（0.173"，4.40mm 宽） | ￥0.8000 | IC 14STAGE BINARY RIPPLE 16TSSOP | 购买 |
| 74HCT390DB,112 | 601 | NXP Semiconductors | 19+ | 16-SSOP（0.209"，5.30mm 宽） | ￥0.9300 | IC DUAL DEC RIPPLE COUNT 16-SSOP | 购买 |
