ZHCSQ37F December 1982 – February 2022 SN54HC4020 , SN74HC4020
PRODUCTION DATA
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
’HC4020 器件是 14 級紋波進(jìn)位二進(jìn)制計(jì)數(shù)器,會在時(shí)鐘脈沖的負(fù)邊沿觸發(fā)一次計(jì)數(shù)。當(dāng)清零 (CLR) 輸入變?yōu)楦唠娖綍r(shí),計(jì)數(shù)器將獨(dú)立于時(shí)鐘 (CLK) 輸入復(fù)位為零(所有輸出為低電平)。
| 器件型號 | 封裝(1) | 封裝尺寸(標(biāo)稱值) |
|---|---|---|
| SN74HC4020D | SOIC (16) | 9.90mm × 3.90mm |
| SN74HC4020N | PDIP (16) | 19.31mm × 6.35mm |
| SN74HC4020NS | SO (16) | 6.20mm × 5.30mm |
| SN74HC4020PW | TSSOP (16) | 5.00mm × 4.40mm |
| SN54HC4020J | CDIP (16) | 24.38mm × 6.92mm |
| SNJ54HC4020FK | LCCC (20) | 8.89mm × 8.45mm |
| SNJ54HC4020W | CFP (16) | 10.16mm × 6.73mm |
功能方框圖