器件名称:
M74HC240
功能描述:
HC240: INVERTED - HC241/244 NON INVERTED OCTAL BUS BUFFER WITH 3 STATE OUTPUTS
文件大小:
270.82KB 共12页
简 介:
M54HC240/241/244 M74HC240/241/244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC240: INVERTED - HC241/244 NON INVERTED . . . . . . . . HIGH SPEED tPD = 10 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION o ICC = 4 A (MAX.) at TA = 25 C HIGH NOISE IMMUNITY VNIH = VINL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 54/74LS240/241/244 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCXXXF1R M74HCXXXM1R M74HCXXXB1R M74HCXXXC1R DESCRIPTION The M54/74HC240, HC241 and HC244 are high speed CMOS OCTAL BUS BUFFERs fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. The designer has a choise of select combination of inverting and non-inverting outputs, symmetrical G (active low output control) input, and PIN CONNECTION (top view) HC240 HC241 HC244 complementary G and G inputs. Each control input governs four BUS BUFFERs. These devices are designed to be used with 3 state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. October 1993 1/12 M54/M74HC240/241/244 CHIP CARRIER HC240 HC241 HC244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (HC240) PIN No 1 2, 4, 6, 8 9, 7, 5, 3……
