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74AVCH2T45GT Folha de dados(PDF) 1 Page - NXP Semiconductors

Nome de Peças 74AVCH2T45GT
Descrição Electrónicos  Dual-bit, dual-supply voltage level translator/transceiver; 3-state
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Fabricante Electrônico  NXP [NXP Semiconductors]
Página de início  http://www.nxp.com
Logo NXP - NXP Semiconductors

74AVCH2T45GT Folha de dados(HTML) 1 Page - NXP Semiconductors

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1.
General description
The 74AVCH2T45 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 (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at
any voltage between 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 nA and DIR
are referenced to VCC(A) and pins nB are referenced to VCC(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 IOFF. The IOFF
circuitry disables the output, preventing any damaging backflow current through the
device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at
GND level, both A and B are in the high-impedance OFF-state.
The 74AVCH2T45 has active bus hold circuitry which is provided to hold unused or
floating data inputs at a valid logic level. This feature eliminates the need for external
pull-up or pull-down resistors.
2.
Features
I Wide supply voltage range:
N VCC(A): 0.8 V to 3.6 V
N VCC(B): 0.8 V to 3.6 V
I High noise immunity
I Complies with JEDEC standards:
N JESD8-12 (0.8 V to 1.3 V)
N JESD8-11 (0.9 V to 1.65 V)
N JESD8-7 (1.2 V to 1.95 V)
N JESD8-5 (1.8 V to 2.7 V)
N JESD8-B (2.7 V to 3.6 V)
I ESD protection:
N HBM JESD22-A114E Class 3B exceeds 8000 V
N MM JESD22-A115-A exceeds 200 V
N CDM JESD22-C101C exceeds 1000 V
I Maximum data rates:
N 500 Mbps (1.8 V to 3.3 V translation)
N 320 Mbps (< 1.8 V to 3.3 V translation)
N 320 Mbps (translate to 2.5 V or 1.8 V)
74AVCH2T45
Dual-bit, dual-supply voltage level translator/transceiver;
3-state
Rev. 03 — 6 May 2009
Product data sheet


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