74HCT240 Series

8-ch, 4.5V to 5.5V inverters with TTL-compatible CMOS inputs and 3-state outputs

Catalog(14 parts)

Part	Operating Temperature▲▼	Operating Temperature▲▼	Package / Case	Package / Case▲▼	Package / Case▲▼	Mounting Type	Number of Bits per Element▲▼	Output Type	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Supplier Device Package	Number of Elements▲▼	Logic Type	Voltage - Supply▲▼	Voltage - Supply▲▼	Package / Case▲▼
Texas Instruments CD74HCT240EG4 Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-PDIP	-55 °C	125 °C	20-DIP	0.007619999814778566 m	0.007619999814778566 m	Through Hole	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-PDIP	2 ul	Buffer, Inverting	5.5 V	4.5 V
Texas Instruments CD74HCT240PWR Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	-55 °C	125 °C	20-TSSOP	0.004399999976158142 m		Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-TSSOP	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.004394200164824724 m
Texas Instruments SN74HCT240DWG4 Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	-40 °C	85 °C	20-SOIC			Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-SOIC	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.007493000011891127 m, 0.007499999832361937 m
Texas Instruments CD74HCT240PWT Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	-55 °C	125 °C	20-TSSOP	0.004399999976158142 m		Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-TSSOP	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.004394200164824724 m
Texas Instruments SN74HCT240APW Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	-40 °C	85 °C	20-TSSOP	0.004399999976158142 m		Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-TSSOP	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.004394200164824724 m
Texas Instruments CD74HCT240M96 Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	-55 °C	125 °C	20-SOIC			Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-SOIC	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.007493000011891127 m, 0.007499999832361937 m
Texas Instruments SN74HCT240N Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-PDIP	-40 °C	85 °C	20-DIP	0.007619999814778566 m	0.007619999814778566 m	Through Hole	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-PDIP	2 ul	Buffer, Inverting	5.5 V	4.5 V
Texas Instruments SN74HCT240NSR Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-SO	-40 °C	85 °C	20-SOIC			Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-SO	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.0052999998442828655 m, 0.005308600142598152 m
Texas Instruments SN74HCT240NS Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-SO	-40 °C	85 °C	20-SOIC			Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-SO	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.0052999998442828655 m, 0.005308600142598152 m
Texas Instruments SN74HCT240DWR Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	-40 °C	85 °C	20-SOIC			Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-SOIC	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.007493000011891127 m, 0.007499999832361937 m
Texas Instruments SN74HCT240PWT Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	-40 °C	85 °C	20-TSSOP	0.004399999976158142 m		Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-TSSOP	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.004394200164824724 m
Texas Instruments CD74HCT240E Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-PDIP	-55 °C	125 °C	20-DIP	0.007619999814778566 m	0.007619999814778566 m	Through Hole	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-PDIP	2 ul	Buffer, Inverting	5.5 V	4.5 V
Texas Instruments CD74HCT240PW Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	-55 °C	125 °C	20-TSSOP	0.004399999976158142 m		Surface Mount	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-TSSOP	2 ul	Buffer, Inverting	5.5 V	4.5 V	0.004394200164824724 m
Texas Instruments SN74HCT240NE4 Buffer, Inverting 2 Element 4 Bit per Element 3-State Output 20-PDIP	-40 °C	85 °C	20-DIP	0.007619999814778566 m	0.007619999814778566 m	Through Hole	4 ul	3-State	0.006000000052154064 A	0.006000000052154064 A	20-PDIP	2 ul	Buffer, Inverting	5.5 V	4.5 V

Key Features

• Operating voltage range of 4.5V to 5.5VHigh-current outputs drive up to 15 LSTTL loadsLow power consumption, 80µA max ICCTypical tpd = 12 ns±6mA output drive at 5VLow input current of 1µA maxInputs are TTL-voltage compatible3-state outputs drive bus lines or buffer memory address registersOperating voltage range of 4.5V to 5.5VHigh-current outputs drive up to 15 LSTTL loadsLow power consumption, 80µA max ICCTypical tpd = 12 ns±6mA output drive at 5VLow input current of 1µA maxInputs are TTL-voltage compatible3-state outputs drive bus lines or buffer memory address registers

Description

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’HCT240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes inverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’HCT240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes inverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.