SN54LVTH162244-SP Texas instruments

SN54LVTH162244-SP

Уточнить цену

SN54LVTH162244-SP

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The 'LVTH162244 devices are 16-bit buffers and line drivers 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 can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs. The outputs, which are designed to source or sink up to 12 mA, include equivalent 22- series resistors to reduce overshoot and undershoot. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCC is between 0 and 1.5 V, the devices 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 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.

Members of the Texas Instruments Widebus™ Family
Output Ports Have Equivalent 22- Series Resistors, So No External Resistors Are Required
Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V V_CC)
Support Unregulated Battery Operation Down to 2.7 V
Typical V_OLP (Output Ground Bounce) <0.8 V at V_CC = 3.3 V, T_A = 25°C
I_off and Power-Up 3-State Support Hot Insertion
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Distributed V_CC and GND Pins Minimize High-Speed Switching Noise
Flow-Through Architecture Optimizes PCB Layout
Latch-Up Performance Exceeds 500 mA Per JESD 17
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)

Widebus is a trademark of Texas Instruments.

Technology family	LVT
Supply voltage (min) (V)	2.7
Supply voltage (max) (V)	3.6
Number of channels	16
IOL (max) (mA)	12
Supply current (max) (µA)	5000
IOH (max) (mA)	-12
Input type	TTL-Compatible CMOS
Output type	3-State
Features	Balanced outputs, Bus-hold, Damping resistors, Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd
Rating	Space
Operating temperature range (°C)	-55 to 125