SN74AXC1T45 Texas instruments

SN74AXC1T45

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SN74AXC1T45

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Описание

The SN74AXC1T45 is a single-bit noninverting bus transceiver that uses two separate configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V.The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.The glitch suppression circuitry enables either supply rail to be powered on or off in any order, providing robust power sequencing performance.

Up and down translation across 0.65 V to 3.6 V
Operating temperature: –40°C to +125°C
Designed with glitch suppression circuitry to improve power sequencing performance
Maximum quiescent current (I_CCA + I_CCB) of 10 µA (85°C maximum) and 16 µA (125°C maximum)
Up to 500-Mbps support when translating from 1.8 to 3.3V
V_CC isolation feature:
- If either V_CC input is below 100 mV, all I/Os outputs are disabled and become high-impedance
I_off supports partial-power-down mode operation
Latch-up performance exceeds 100 mA per JESD 78, Class II
ESD protection exceeds JESD 22
- 8000-V human body model
- 1000-V charged-device model

Technology family	AXC
Applications	GPIO
Bits (#)	1
High input voltage (min) (V)	0.455
High input voltage (max) (V)	3.6
Vout (min) (V)	0.65
Vout (max) (V)	3.6
Data rate (max) (MBits)	380
IOH (max) (mA)	-12
IOL (max) (mA)	12
Supply current (max) (µA)	12
Features	Output enable, Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation
Input type	Standard CMOS
Output type	3-State, Balanced CMOS, Push-Pull
Rating	Catalog
Operating temperature range (°C)	-40 to 125