General description
The AXP1T34 is a single bit, dual supply translating buffer. It features one input (A), an output (Y)
and dual supply pins (VCCI and VCCO). Both VCCI and VCCO can be supplied at any voltage between
0.9 V and 5.5 V making the device suitable for translating between any voltage nodes specified
(1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). No power supply sequencing is required and output
glitches during power supply transitions are prevented using patented circuitry. As a result, glitches
will not appear on the outputs for supply transitions during power-up/down between 20 mV/μs and
5.5 V/s
The input is referenced to VCCI and the output is referenced to VCCO. Schmitt-trigger action at the
input makes the circuit tolerant of slower input rise and fall times.
This device ensures low static and dynamic power consumption across the entire supply range
and is fully specified for partial power down applications using IOFF. The IOFF circuitry disables
the output, preventing the potentially damaging backflow current through the device when it is
powered down. In suspend mode when either VCCI or VCCO are at GND level the output is in the
high-impedance OFF-state
Features and benefits
• Wide supply voltage range:
• VCCI: 0.9 V to 5.5 V
• VCCO: 0.9 V to 5.5 V
• Low input capacitance; CI = 1.5 pF (typical)
• Low output capacitance; CO = 3.8 pF (typical)
• Low dynamic power consumption; CPD = 0.4 pF at VCCI = 1.2 V (typical)
• Low dynamic power consumption; CPD = 11 pF at VCCO = 5 V (typical)
• Low static power consumption; ICCI = 0.1 μA (25 °C maximum)
• Low static power consumption; ICCO = 1.0 μA (25 °C maximum)
• High noise immunity
• Complies with JEDEC standard:
• JESD8-12 (1.1 V to 1.3 V; A input)
• JESD8-11 (1.4 V to 1.6 V)
• JESD8-7 (1.65 V to 1.95 V)
• JESD8-5 (2.3 V to 2.7 V)
• JESD8C (2.7 V to 3.6 V)
• JESD12-6 (4.5 V to 5.5 V)
• ESD protection:
• HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
• CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
• Latch-up performance exceeds 100 mA per JESD78D Class II
• Inputs accept voltages up to 5.5 V
• Low noise overshoot and undershoot < 10% of VCCO
• IOFF circuitry provides partial power-down mode operation
• Multiple package options
• Specified from −40 °C to +125 °C