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74F552QC Arkusz danych(PDF) 2 Page - Fairchild Semiconductor |
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74F552QC Arkusz danych(HTML) 2 Page - Fairchild Semiconductor |
2 / 8 page www.fairchildsemi.com 2 Logic Symbols IEEE/IEC Unit Loading/Fan Out Pin Names Description U.L. Input IIH/IIL HIGH/LOW Output IOH/IOL A0–A7 A-to-B Port Data Inputs or 3.5/1.083 70 µA/−0.65 mA B-to-A 3-STATE 150/40 (33.3) −3 mA/24 mA (20 mA) B0–B7 B-to-A Transceiver Inputs or 3.5/1.083 70 µA/−0.65 mA A-to-B 3-STATE Output 600/106.6 (80) −12 mA/64 mA (48 mA) FR B Port Flag Output 50/33.3 −1 mA/20 mA FS A Port Flag Output 50/33.3 −1 mA/20 mA PARITY Parity Bit Transceiver Input or Output 3.5/1.083 70 µA/−0.65 mA 600/106.6 (50) −12 mA/64 mA (48 mA) ERROR Parity Check Output (Active LOW) 50/33.3 −1 mA/20 mA CER R Registers Clock Enable Input (Active LOW) 1.0/1.0 20 µA/−0.6 mA CES S Registers Clock Enable Input (Active LOW) 1.0/1.0 20 µA/−0.6 mA CPR R Registers Clock Pulse Input (Active Rising Edge) 1.0/1.0 20 µA/−0.6 mA CPS S Registers Clock Pulse Input (Active Rising Edge) 1.0/1.0 20 µA/−0.6 mA OEBR B Port and PARITY Output Enable (Active LOW) 1.0/2.0 20 µA/−1.2 mA and Clear FR Input (Active Rising Edge) OEAS A Port Output Enable (Active LOW) 1.0/2.0 20 µA/−1.2 mA and Clear FS Input (Active Rising Edge) |
Podobny numer części - 74F552QC |
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Podobny opis - 74F552QC |
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