1. General description
The 74AVCH1T45-Q100 is a single bit, dual supply transceiver that enables bidirectional
level translation. It features two 1-bit input-output ports (A and B), 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 be tween 0.8 V and 3.6 V making 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 A
and DIR are referen ced to V
CC(A)
and pin B is refer enced to V
CC(B)
. A HIGH on DIR allows
transmission from A to B and a LOW on DIR allows transmission from B to A.
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 wh en either V
CC(A)
or V
CC(B)
are at
GND level, both A and B are in the high-impedance OFF-state.
The 74AVCH1T45-Q100 has active bu s hold circui try which is pr ovided to hold u nused o r
floating data inputs at a valid logic level. This feature eliminates the need for external
pull-up or pull-down resistors.
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 )
74AVCH1T45-Q100
Dual-supply voltage level translator/transceiver; 3-state
Rev. 3 — 6 January 2016 Product data sheet