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74LVCH322245A Scheda tecnica(PDF) 1 Page - NXP Semiconductors

Il numero della parte 74LVCH322245A
Spiegazioni elettronici  32-bit bus transceiver with direction pin; 30 ??series termination resistors; 5 V tolerant; 3-state
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVCH322245A Scheda tecnica(HTML) 1 Page - NXP Semiconductors

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1.
General description
The 74LVCH322245A is a 32-bit transceiver featuring non-inverting 3-state bus
compatible outputs in both send and receive directions. The device features four output
enable (nOE) inputs for easy cascading and four send/receive (nDIR) inputs for direction
control. Pin nOE controls the outputs so that the buses are effectively isolated. The device
is designed with 30
 series termination resistors in both HIGH and LOW output stages to
reduce line noise.
Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be
applied to the outputs. These features allow the use of these devices in mixed
3.3 V and 5 V applications.
To ensure the high-impedance state during power-up or power-down, pin nOE should be
tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by
the current-sinking capability of the driver.
Bus hold on data inputs eliminates the need for external pull-up resistors to hold unused
inputs.
2.
Features and benefits
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low power consumption
MULTIBYTE flow-through standard pin-out architecture
Low inductance multiple power and ground pins for minimum noise and ground
bounce
Direct interface with TTL levels
Integrated 30
 termination resistors
All data inputs have bus hold
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-B exceeds 200 V
CDM JESD22-C101E exceeds 1000 V
Specified from
40 Cto+85 C and 40 Cto+125 C
74LVCH322245A
32-bit bus transceiver with direction pin; 30
 series
termination resistors; 5 V tolerant; 3-state
Rev. 4 — 20 December 2011
Product data sheet


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