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SN74LVT162245A

Features: *Members of the Texas Instruments Widebus Family* A-Port Outputs Have Equivalent 22-Ω Series Resistors, So No External Resistors Are Required* Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)* Support Unregulated Battery Operation Down to 2...

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SeekIC No. : 004499422 Detail

SN74LVT162245A: Features: *Members of the Texas Instruments Widebus Family* A-Port Outputs Have Equivalent 22-Ω Series Resistors, So No External Resistors Are Required* Support Mixed-Mode Signal Opera...

SN74LVT162245A Data Sheet

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Part Number:
SN74LVT162245A
Supply Ability:
5000

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Product Details

Description



Features:

* Members of the Texas Instruments
   Widebus Family
* A-Port Outputs Have Equivalent 22-Ω
   Series Resistors, So No External Resistors
   Are Required
* Support Mixed-Mode Signal Operation
   (5-V Input and Output Voltages With
   3.3-V VCC)
* Support Unregulated Battery Operation
   Down to 2.7 V
* Typical VOLP (Output Ground Bounce)
   <0.8 V at VCC = 3.3 V, TA = 25
* Ioff and Power-Up 3-State Support Hot
   Insertion
* Distributed VCC and GND Pins Minimize
   High-Speed Switching Noise
* Flow-Through Architecture Optimizes PCB
   Layout
* Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
* ESD Protection Exceeds JESD 22
   − 2000-V Human-Body Model (A114-A)
   − 200-V Machine Model (A115-A)
   − 1000-V Charged-Device Model (C101)


Pinout

Connection Diagram


Specifications

Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . .. . .−0.5 V to 4.6 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .−0.5 V to 7 V
Voltage range applied to any output in the high-impedance
   or power-off state, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 7 V
Voltage range applied to any output in the high state, VO (see Note 1)  . . . . . . . . . . .. .−0.5 V to VCC + 0.5 V
Current into any output in the low state, IO: SN54LVT162245A (B port). . . . . . . . . . . .  . . . . . . . .. . . . . 96 mA 
                                                                       SN74LVT162245A (B port). . . . . . . . . . . .  . . . . . .. . . . . . 128 mA
                                                                       A port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 30 mA
Current into any output in the high state, IO (see Note 2): SN54LVT162245A (B port) . . .  . . . . . . .... . .48 mA
                                                                                             SN74LVT162245A (B port) . . . .. . . . .... . . . .64 mA
                                                                                             A port . . . . . . . . . . . . . . . . . . . .  . . . . . . . . .30 mA
Input clamp current, IIK (VI < 0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . −50 mA
Output clamp current, IOK (VO < 0)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . .−50 mA
Package thermal impedance, JA (see Note 3): DGG package  . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .70/W
                                                                           DL package . . . . . . . . . . . . . . . . . . . . . .  . . . . ... . . . . .63/W 
                                                                           GQL/ZQL package  . . . . . . . . . . . . . . . . . . . . . . ... . . . .42/W
Storage temperature range, Tstg  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... .. .−65 to 150


Description

The 'LVT162245A devices are 16-bit (dual-octal) noninverting 3-state transceivers designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

These devices LVT162245A 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 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 be used to disable the device so that the buses are effectively isolated.

The LVT162245A 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.

When VCC is between 0 and 1.5 V, the devices LVT162245A are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

These devices LVT162245A are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.




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