 | SN74ALS569AN | 136 | Texas Instruments | 19+ | 20-DIP（0.300"，7.62mm） | ￥5.4600 | IC COUNTER SYNCH 4BIT U/D 20-DIP | 购买 |
| SN74F169D | 49 | Texas Instruments | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥7.2300 | IC COUNTER 4BIT BIN SYNC 16-SOIC | 购买 |
| SN74LS592N | 970 | Texas Instruments | 19+ | 16-DIP（0.300"，7.62mm） | ￥12.0000 | IC BIN CNTR W/INPUT-REG 16-DIP | 购买 |
| 74HC4040D,653 | 2500 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1449 | IC 12STAGE BINARY RIPPLE 16SOIC | 购买 |
| 74HC4040D,653 | 2500 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1449 | IC 12STAGE BINARY RIPPLE 16SOIC | 购买 |
| 74HC4040D,653 | 2500 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1449 | IC 12STAGE BINARY RIPPLE 16SOIC | 购买 |
| 74HC191N,652 | 1792 | NXP Semiconductors | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.5500 | IC COUNTER UP/DOWN SYNC 16DIP | 购买 |
| 74HC193N,652 | 3434 | NXP Semiconductors | 19+ | 16-DIP（0.300"，7.62mm） | ￥1.5500 | IC 4BIT BINARY UP/DN COUNT 16DIP | 购买 |
| SY10EL33ZG | 123 | Micrel Inc | 19+ | 8-SOIC（0.154"，3.90mm 宽） | ￥4.1300 | IC DIVIDER /4 5V/3.3V 8-SOIC | 购买 |
| SY100EP32VKG | 204 | Micrel Inc | 19+ | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） | ￥4.2400 | IC DIVIDER /2 5V/3.3V 8-MSOP | 购买 |
| 74HC161D,653 | 20000 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1419 | IC SYNC 4BIT BINARY COUNT 16SOIC | 购买 |
| 74HC161D,653 | 20000 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1419 | IC SYNC 4BIT BINARY COUNT 16SOIC | 购买 |
| 74HC161D,653 | 20000 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1419 | IC SYNC 4BIT BINARY COUNT 16SOIC | 购买 |
| 74HC4040PW,118 | 5000 | NXP Semiconductors | 19+ | 16-TSSOP（0.173"，4.40mm 宽） | ￥0.1527 | IC 12STAGE BINARY RIPPLE 16TSSOP | 购买 |
| CD4024BPWR | 2000 | Texas Instruments | 19+ | 14-TSSOP（0.173"，4.40mm 宽） | ￥0.2700 | IC 7BIT BINARY COUNTER 14-TSSOP | 购买 |
| CD4024BPWR | 2000 | Texas Instruments | 19+ | 14-TSSOP（0.173"，4.40mm 宽） | ￥0.2700 | IC 7BIT BINARY COUNTER 14-TSSOP | 购买 |
| HEF4040BT,652 | 2283 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.5000 | IC COUNTER RIP BIN 12BIT 16-SOIC | 购买 |
| HEF4024BP,652 | 1665 | NXP Semiconductors | 19+ | 14-DIP（0.300"，7.62mm） | ￥1.2000 | IC 7STAGE BINARY COUNTER 14DIP | 购买 |
| 74HC4020D,653 | 2500 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.1783 | IC 14STAGE BINARY RIPPLE 16SOIC | 购买 |
| 74HC4020D,652 | 8614 | NXP Semiconductors | 19+ | 16-SOIC（0.154"，3.90mm 宽） | ￥0.4300 | IC 14-STAGE BINARY RIPPLE 16SOIC | 购买 |
