SN74BCT2245 Series

Octal Bus Transceivers With Series Damping Resistors

Catalog

Octal Bus Transceivers With Series Damping Resistors

Part	Supplier Device Package	Operating Temperature [Max]	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Output Type	Package / Case	Package / Case [y]	Package / Case [y]	Number of Bits per Element	Number of Elements	Package / Case	Package / Case
Texas Instruments SN74BCT2245DWRE4	20-SOIC	70 °C	Surface Mount	4.5 V	5.5 V	12 mA 24 mA	3 mA 12 mA	3-State	20-SOIC	0.295 in	7.5 mm	8	1
Texas Instruments SN74BCT2245DWR	20-SOIC	70 °C	Surface Mount	4.5 V	5.5 V	12 mA 24 mA	3 mA 12 mA	3-State	20-SOIC	0.295 in	7.5 mm	8	1
Texas Instruments SN74BCT2245N	20-PDIP	70 °C	Through Hole	4.5 V	5.5 V	12 mA 24 mA	3 mA 12 mA	3-State	20-DIP			8	1	7.62 mm	0.3 in
Texas Instruments SN74BCT2245DW	20-SOIC	70 °C	Surface Mount	4.5 V	5.5 V	12 mA 24 mA	3 mA 12 mA	3-State	20-SOIC	0.295 in	7.5 mm	8	1

Catalog

Octal Bus Transceivers With Series Damping Resistors

Key Features

• Operating Voltage Range of 4.5 V to 5.5 VState-of-the-Art BiCMOS Design Significantly Reduces ICCZB Port Has Equivalent 33-Series Resistors, So No External Resistors Are RequiredESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Operating Voltage Range of 4.5 V to 5.5 VState-of-the-Art BiCMOS Design Significantly Reduces ICCZB Port Has Equivalent 33-Series Resistors, So No External Resistors Are RequiredESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)

Description

The SN74BCT2245 octal transceiver and line/ MOS driver is designed for asynchronous communication between data buses. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can disable the devices so that both buses are effectively isolated. To ensure the high-impedance state during power up or power down, (OE)\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The B-port outputs, which are designed to source or sink up to 12 mA, include 33-series resistors to reduce overshoot and undershoot. The SN74BCT2245 octal transceiver and line/ MOS driver is designed for asynchronous communication between data buses. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can disable the devices so that both buses are effectively isolated. To ensure the high-impedance state during power up or power down, (OE)\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The B-port outputs, which are designed to source or sink up to 12 mA, include 33-series resistors to reduce overshoot and undershoot.