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DESCRIPTION:
Maxwell Technologies’ 54LVTH162245 devices are 16-BIT (dual-octal) non-inverting 3-STATE TRANSCEIVERS designed for low-voltage (3.3V) VCC operation, but WITH the capability to provide a TTL interface to a 5V system environment. These devices can be used as two 8-bit TRANSCEIVERS or one 16-BIT transceiver. The devices allow data transmission from the A BUS to the B BUS or form the B BUS to the A BUS, depending on the logic level at the direction-control (DIR) input. The output enable (OE) input can be used to disable the device so that the BUSes are effectively isolated. The A-port OUTPUTS, which are designed to source or sink up to 12 mA, include equivalent 22-Ω series resistors to reduce overshoot and undershoot.

FEATURES:
• A-Port OUTPUTS have equivalent 22-Ω series resistors, so no external resistors are required
• Support mixed-mode signal operation (5V input and output voltages WITH 3.3V VCC)
• Support unregulated battery operation down to 2.7V
• Typical VOLP (output ground bounce) < 0.8V at VCC = 3.3V, TA = 25°C
• IOFF and power-up 3-STATE support hot insertion
• BUS hold on data inputs eliminates the need for external pullup/pulldown resistors
• Distributed VCC and GND pin configuration minimizes highspeed switching noise
• Flow-through architecture optimizes PCB layout
• Total dose hardness:
    - > 100 krad (Si), depending upon space mission
• Package: 48 pin RAD-PAK® flat pack

Description
The HD74ALVCH16245 is designed for asynchronous communication between data BUSes. The control function implementation minimizes external timing requirements. This device can be used as two 8-bit TRANSCEIVERS or one 16-BIT transceiver.
   
Features
• VCC = 2.3 V to 3.6 V
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• BUS hold on data inputs eliminates the need for external pullup / pulldown resistors
   

Octal BUS TRANSCEIVERS (non-inverted 3-STATE OUTPUTS)

This octal BUS TRANSCEIVERS is designed for asynchronous two-way communication between data BUSes. The 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 enable input (G) can be used to disable the device so that the BUSes are effectively isolated.

Octal BUS TRANSCEIVERS (inverted 3-STATE OUTPUTS)

This octal BUS TRANSCEIVERS is designed for asynchronous two-way communication between data BUSes. The device 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 enable input (G) can be used to disable the device so that the BUSes are effectively isolated.

Description
The HD74LVC16245A has sixteen two direction buffers, for the fittest at two direction BUS lines WITH three state
OUTPUTS. A direction control input, DIR. When DIR is high, data flows from the A inputs to the B OUTPUTS. When DIR is low, data flows from the B inputs to the A OUTPUTS. When enable inputs (G) is high, disables both A and B ports by placing then in a high impedance. Low voltage and high-speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.

Features
•  VCC= 2.0 V to 5.5 V
•  All inputs VIH(Max.) = 5.5 V (@VCC= 0 V to 5.5 V)
•  All OUTPUTS VOUT(Max.) = 5.5 V (@VCC= 0 V or output off state)
•  Typical VOLground bounce < 0.8 V (@VCC= 3.3 V, Ta = 25°C)
•  Typical VOHundershoot > 2.0 V (@VCC= 3.3 V, Ta = 25°C)
•  High output current ±24 mA (@VCC= 3.0 V to 5.5 V)

Description
The HD74ALVCH162543 can be used as two 8-bit TRANSCEIVERS or one 16-BIT transceiver.

Features
• VCC = 2.3 V to 3.6 V
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High output current ±12 mA (@VCC = 3.0 V)
• BUS hold on data inputs eliminates the need for external pullup / pulldown resistors
• All OUTPUTS have equivalent 26 Ω series resistors, so no external resistors are required.

Description
The HD74LVC16245A has sixteen two direction buffers, for the fittest at two direction BUS lines WITH three state OUTPUTS. A direction control input, DIR. When DIR is high, data flows from the A inputs to the B OUTPUTS. When DIR is high, data flows from the B inputs to the A OUTPUTS. When enable inputs (G) is high, disables both A and B ports by placing then in a high impedance. Low voltage and high speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.

Features
•  VCC= 2.0 V to 5.5 V
•  All inputs VIH(Max.) = 5.5 V (@VCC= 0 V to 5.5 V)
•  All OUTPUTS VOUT(Max.) = 5.5 V (@VCC= 0 V or output off state)
•  Typical VOLground bounce < 0.8 V (@VCC= 3.3 V, Ta = 25°C)
•  Typical VOHundershoot > 2.0 V (@VCC= 3.3 V, Ta = 25°C)
•  High output current ±24 mA (@VCC= 3.0 V to 5.5 V)

DESCRIPTION
The 74ACT16244 is a low voltage CMOS 16-BIT D-TYPE LATCH and 16 BIT BUS TRANSCEIVER WITH 3-STATE output non inverting fabricated WITH sub-micron silicon gate and double-layer metal wiring C2MOS technology.
Both functions can be used as 16 bit or dual octal devices, so the 16 bit transceiver can be used ad 8 bit BUS buffer plus 8 bit transceiver, or only 16 bit buffer in select direction.

■ HIGH SPEED: tPD = 4.8ns (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION: ICC = 8µA(MAX.) at TA=25°C
■ COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.), VIL = 0.8V (MAX.)
■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) at VCC = 4.5V
■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
■ OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V
■ FUNCTION COMPATIBLE WITH SERIES 16373 AND 16245 (244)
■ IMPROVED LATCH-UP IMMUNITY
■ IMPROVED ESD IMMUNITY

Description
The HD74ALVCH16543 can be used as two 8-bit TRANSCEIVERS or one 16-BIT transceiver.

Features
• VCC = 2.3 V to 3.6 V
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@VCC = 3.0 V)
• BUS hold on data inputs eliminates the need for external pullup / pulldown resistors

Description
The HD74ALVCH16245 is designed for asynchronous communication between data BUSes. The control function implementation minimizes external timing requirements. This device can be used as two 8-bit TRANSCEIVERS or one 16-BIT transceiver.
   
Features
• VCC = 2.3 V to 3.6 V
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• BUS hold on data inputs eliminates the need for external pullup / pulldown resistors