SN74HCT645 Series

Octal Bus Transceivers With 3-State Outputs

Catalog

Octal Bus Transceivers With 3-State Outputs

Part	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Elements	Output Type	Package / Case [y]	Package / Case	Package / Case [x]	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Number of Bits per Element	Package / Case	Package / Case	Package / Case [y]
Texas Instruments SN74HCT645PWR	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645PWT	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645NE4	6 mA	6 mA	85 °C	-40 °C	1	3-State		20-DIP		Through Hole	4.5 V	5.5 V	20-PDIP	8	7.62 mm	0.3 in
Texas Instruments SN74HCT645PWRE4	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645N	6 mA	6 mA	85 °C	-40 °C	1	3-State		20-DIP		Through Hole	4.5 V	5.5 V	20-PDIP	8	7.62 mm	0.3 in
Texas Instruments SN74HCT645PW	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645DW	6 mA	6 mA	85 °C	-40 °C	1	3-State	0.295 in	20-SOIC		Surface Mount	4.5 V	5.5 V	20-SOIC	8			7.5 mm

Catalog

Octal Bus Transceivers With 3-State Outputs

Key Features

• Operating Voltage Range of 4.5 V to 5.5 VHigh-Current 3-State Outputs Can Drive Up To 15 LSTTL LoadsLow Power Consumption, 80-µA Max ICCTypical tpd= 14 ns±6-mA Output Drive at 5 VLow Input Current of 1 µA MaxInputs Are TTL-Voltage CompatibleTrue LogicOperating Voltage Range of 4.5 V to 5.5 VHigh-Current 3-State Outputs Can Drive Up To 15 LSTTL LoadsLow Power Consumption, 80-µA Max ICCTypical tpd= 14 ns±6-mA Output Drive at 5 VLow Input Current of 1 µA MaxInputs Are TTL-Voltage CompatibleTrue Logic

Description

These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated. These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.