74AVC2T45-Q100
Dual-bit, dual-supply voltage level translator/transceiver;
3-state
Rev. 4 — 6 May 2019 Product data sheet
1. General description
The 74AVC2T45-Q100 is a dual-bit, dual-supply transceiver that enables bidirectional level
translation. It features two data input-output ports (nA and nB), a direction control input (DIR) and
dual supply pins (V
CC(A)
and V
CC(B)
). Both V
CC(A)
and V
CC(B)
can be supplied with any voltage
between 0.8 V and 3.6 V. This flexibility makes the device suitable for translating between any of
the low voltage nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins nA and DIR are referenced
to V
CC(A)
and pins nB are referenced to V
CC(B)
. A HIGH on DIR allows transmission from nA to nB
and a LOW on DIR allows transmission from nB to nA.
The device is fully specified for partial power-down applications using I
OFF
. The I
OFF
circuitry
disables the output, preventing any damaging backflow current through the device when it is
powered down. In Suspend mode when either V
CC(A)
or V
CC(B)
are at GND level, both A and B are
in the high-impedance OFF-state.
This product has been qualified to the Automotive Electronics Council (AEC) standard Q100
(Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
• Automotive product qualification in accordance with AEC-Q100 (Grade 1)
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C
• Wide supply voltage range:
• V
CC(A)
: 0.8 V to 3.6 V
• V
CC(B)
: 0.8 V to 3.6 V
• High noise immunity
• Complies with JEDEC standards:
• JESD8-12 (0.8 V to 1.3 V)
• JESD8-11 (0.9 V to 1.65 V)
• JESD8-7 (1.2 V to 1.95 V)
• JESD8-5 (1.8 V to 2.7 V)
• JESD8-B (2.7 V to 3.6 V)
• ESD protection:
• MIL-STD-883, method 3015 Class 3B exceeds 8000 V
• HBM JESD22-A114E Class 3B exceeds 8000 V
• MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)
• Maximum data rates:
• 500 Mbit/s (1.8 V to 3.3 V translation)
• 320 Mbit/s (<1.8 V to 3.3 V translation)
• 320 Mbit/s (translate to 2.5 V or 1.8 V)
• 280 Mbit/s (translate to 1.5 V)
• 240 Mbit/s (translate to 1.2 V)
• Suspend mode
• Latch-up performance exceeds 100 mA per JESD 78 Class II
• Inputs accept voltages up to 3.6 V
• Low noise overshoot and undershoot < 10 % of V
CC
• I
OFF
circuitry provides partial Power-down mode operation
