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Part Name(s) : HD74HC651 HD74HC652
Hitachi
Hitachi -> Renesas Electronics
Description : Octal BUS TRANSCEIVERS/REGISTERS (WITH inverted 3-STATE OUTPUTS) Octal BUS TRANSCEIVERS/REGISTERS (WITH 3-STATE OUTPUTS)

Description
This device consists of BUS transceiver circuits, D-type flip-flops, AND control circuitry arranged for multiplexed transmission of data directly from the data BUS or from the internal storage REGISTERS. Enable GAB AND GBA are provided to cotrol the transceiver functions. Select AB AND Select BA control pins are provided to select whether real-time or stored data is transferred. A low input level selects real-time data, AND a high selects stored data. The following examples demonstrate the four fundamental BUS-management functions that can be performed WITH the HD74HC651 AND HD74HC652.

Features
• High Speed Operation: tpd (BUS to BUS) = 16 ns typ (CL = 50 pF)
• High Output Current: Fanout of 15 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

Description : 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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 : 16-BIT TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

General Description
The ABT16652 consists of sixteen BUS transceiver circuits WITH D-type flip-flops, AND control circuitry arranged for multiplexed transmission of data directly from the input BUS or from the internal REGISTERS. Each byte has separate control inputs which can be shorted together for full 16-BIT operation. Data on the A or B BUS will be clocked into the REGISTERS as the appropriate clock pin goes to HIGH logic level. Output Enable pins (OEAB, OEBA) are provided to control the transceiver function.

Features
■ Independent REGISTERS for A AND B BUSes
■ Multiplexed real-time AND stored data
■ Separate control logic for each byte
■ A AND B output sink capability of 64 mA, source
   capability of 32 mA
■ Guaranteed output skew
■ High impedance glitch free BUS loading during entire
   power up AND power down cycle
■ Nondestructive hot insertion capability

Description : 16-BIT TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

General Description
The ABT16646 consists of BUS transceiver circuits WITH 3- STATE, D-type flip-flops, AND control circuitry arranged for multiplexed transmission of data directly from the input BUS or from the internal REGISTERS.
   
Features
■ Independent REGISTERS for A AND B BUSes
■ Multiplexed real-time AND stored data
■ A AND B output sink capability of 64 mA, source
    capability of 32 mA
■ Guaranteed latchup protection
■ High impedance glitch free BUS loading during entire
    power up AND power down cycle
■ Nondestructive hot insertion capability
   

Part Name(s) : HD74ALVCH16245
Hitachi
Hitachi -> Renesas Electronics
Description : 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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
   

Renesas
Renesas Electronics
Description : Octal BUS TRANSCEIVERS (non-inverted 3-STATE OUTPUTS)

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.

Renesas
Renesas Electronics
Description : Octal BUS TRANSCEIVERS (inverted 3-STATE OUTPUTS)

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.

Renesas
Renesas Electronics
Description : 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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)

Part Name(s) : HD74ALVCH162543
Hitachi
Hitachi -> Renesas Electronics
Description : 16-BIT Registered TRANSCEIVERS WITH 3-STATE OUTPUTS

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.

Hitachi
Hitachi -> Renesas Electronics
Description : 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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)

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