器件名称:
MC74AC244DT
功能描述:
Octal Buffer/Line Driver with 3-State Outputs
文件大小:
91.44KB 共8页
简 介:
MC74AC244, MC74ACT244 Octal Buffer/Line Driver with 3-State Outputs The MC74AC244/74ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter/receiver which provides improved PC board density. http://onsemi.com PDIP–20 N SUFFIX CASE 738 20 1 3–State Outputs Drive Bus Lines or Buffer Memory Address Registers Outputs Source/Sink 24 mA ′ACT244 Has TTL Compatible Inputs VCC 20 OE2 19 18 17 16 15 14 13 12 11 20 1 SO–20 DW SUFFIX CASE 751 20 1 TSSOP–20 DT SUFFIX CASE 948E EIAJ–20 M SUFFIX CASE 967 1 1 OE1 2 3 4 5 6 7 8 9 10 GND 20 Figure 1. Pinout: 20–Lead Packages Conductors (Top View) TRUTH TABLE Inputs OE1 L L H NOTE: D L H X Outputs (Pins 12, 14, 16, 18) L H Z ORDERING INFORMATION Device MC74AC244N MC74ACT244N MC74AC244DW MC74AC244DWR2 MC74ACT244DW MC74ACT244DWR2 MC74AC244DT Package PDIP–20 PDIP–20 SOIC–20 SOIC–20 SOIC–20 SOIC–20 TSSOP–20 TSSOP–20 TSSOP–20 TSSOP–20 EIAJ–20 EIAJ–20 EIAJ–20 EIAJ–20 Shipping 18 Units/Rail 18 Units/Rail 38 Units/Rail 1000 Tape & Reel 38 Units/Rail 1000 Tape & Reel 75 Units/Rail 2500 Tape & Reel 75 Units/Rail 2500 Tape & Reel 40 Units/Rail 2000 Tape & Reel 40 Units/Rail 2000 Tape & Reel H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance TRUTH TABLE Inputs OE2 L L H NOTE: D L H X Outputs (Pins 3, 5, 7, 9) L H Z MC74AC244DTR2 MC74ACT244DT MC74ACT244DTR2 MC74AC244M MC74AC244MEL MC74ACT244M MC74ACT244MEL H = HIGH Voltage Level……
