 | CD74HC193E | 185 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥0.9200 | IC PRESET SYNC 4-BIT HS 16-DIP | 购买 |
| SN74LV8154N | 713 | Texas Instruments | 19+ | 20-DIP（0.300"，7.62mm） | ￥1.0200 | IC DUAL 16-BIT BIN CNTRS 20-DIP | 购买 |
| SN74LS90NE4 | 75 | Texas Instruments | 19+ | 14-DIP（0.300"，7.62mm） | ￥2.4800 | IC DECADE COUNTER 14-DIP | 购买 |
| SN74ALS161BN | 124 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.2200 | IC 4-BIT SYNC BIN COUNTER 16-DIP | 购买 |
| CD74HCT40103E | 597 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.2700 | IC 8-STAGE DOWN COUNTER 16-DIP | 购买 |
| CD40102BPW | 710 | Texas Instruments | 19+ | 16-TSSOP（0.173"，4.40mm 宽） | ￥1.3700 | IC SYNC DOWN COUNTR 8STG 16TSSOP | 购买 |
| CY74FCT191ATSOC | 489 | Texas Instruments | 19+ | 16-SOIC（0.295"，7.50mm 宽） | ￥1.5100 | IC SYNC 4BIT UP/DN CNTR 16SOIC | 购买 |
| SN74LS169BN | 1364 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.7100 | IC SYNC 4-BIT UP/DN CNTR 16-DIP | 购买 |
| SN74ALS169BN | 624 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥2.0200 | IC COUNTER BIN 4BIT U/D 16-DIP | 购买 |
| CD74HC4059E | 40 | Texas Instruments | 19+ | 24-DIP（0.600"，15.24mm） | ￥3.0800 | IC COUNTER PROG DIV-BY-N 24-DIP | 购买 |
| SN74AS161N | 140 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥4.3400 | IC SYNC 4-BIT BIN COUNTER 16-DIP | 购买 |
| SN74AS869NT | 39 | Texas Instruments | 19+ | 24-DIP（0.300"，7.62mm） | ￥11.3300 | IC COUNTER 8BIT SYNC U/D 24-PDIP | 购买 |
| SN74LS590D | 38 | Texas Instruments | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥12.0000 | IC 8-BIT BINARY COUNTER 16-SOIC | 购买 |
| SN74ALS867ADW | 48 | Texas Instruments | 19+ | 24-SOIC（0.295"，7.50mm 宽） | ￥13.2000 | IC SYNC UP/DN BIN CNTR 24-SOIC | 购买 |
| SY10EP33VZG | 67 | Micrel Inc | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥4.8100 | IC DIVIDER /4 3.3/5V 8-SOIC | 购买 |
| 74HC161PW,118 | 2500 | NXP Semiconductors | 19+ | 16-TSSOP（0.173"，4.40mm 宽） | ￥0.1411 | IC SYNC 4BIT BINAR COUNT 16TSSOP | 购买 |
| 74HC161PW,118 | 2500 | NXP Semiconductors | 19+ | 16-TSSOP（0.173"，4.40mm 宽） | ￥0.1411 | IC COUNTER SYNC 4BIT BIN 16TSSOP | 购买 |
| 74LVC169PW,118 | 2500 | NXP Semiconductors | 19+ | 16-TSSOP（0.173"，4.40mm 宽） | ￥0.2393 | IC BINARY COUNTER 4BIT 16TSSOP | 购买 |
| 74HCT4040N,652 | 1512 | NXP Semiconductors | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.6400 | IC COUNTER 12STAGE BINARY 16DIP | 购买 |
| HEF4526BP,652 | 1008 | NXP Semiconductors | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.6900 | IC BINARY COUNTER DWN 4BIT 16DIP | 购买 |
