器件名称:
MC74AC20
功能描述:
DUAL 4-INPUT NAND GATE
文件大小:
126.97KB 共5页
简 介:
MC74AC20 MC74ACT20 Dual 4Input NAND Gate Outputs Source/Sink 24 mA ′ACT20 Has TTL Compatible Inputs Pinout: 14-Lead Packages (Top View) VCC 14 A1 13 B1 12 NC 11 C1 10 D1 9 O1 8 14 1 DUAL 4-INPUT NAND GATE N SUFFIX CASE 646-06 PLASTIC PACKAGE PIN NAMES 1 A0 2 B0 3 NC 4 C0 5 D0 6 O0 7 GND D SUFFIX CASE 751A-03 PLASTIC PACKAGE An, Bn, Cn, Dn On Inputs Outputs MAXIMUM RATINGS* Symbol VCC Vin Vout Iin Iout ICC Tstg Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC VCC or GND Current per Output Pin Storage Temperature Value –0.5 to +7.0 –0.5 to VCC + 0.5 –0.5 to VCC + 0.5 ± 20 ± 50 ± 50 –65 to +150 Unit V V V mA mA mA °C * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. FACT DATA 5-1 MC74AC20 MC74ACT20 RECOMMENDED OPERATING CONDITIONS Symbol VCC VREG Supply Voltage DC Regulated Power Voltage (Ref. to GND) VCC @ 3.0 V tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 4.5 V VCC @ 5.5 V tr, tf TJ TA IOH IOL Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs Junction Temperature (PDIP) Operating Ambient Temperature Range Output Current — HIGH Output Current — LOW –40 25 VCC @ 4.5 V VCC @ 5.5 V Parameter ′AC ′ACT Min 2.0 4.5 0 150 40 25 10 ns/V 8.0 140 85 –24 24 °C °C mA mA ns/V T……
