74lvch322244a NXP Semiconductors, 74lvch322244a Datasheet - Page 2
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74lvch322244a
Manufacturer Part Number
74lvch322244a
Description
32-bit Buffer/line Driver; With 30 Ohm Series Termination Resistors; 5 V Input/output Tolerant; 3-state
Manufacturer
NXP Semiconductors
Datasheet
1.74LVCH322244A.pdf
(12 pages)
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Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
Ground = 0 V; T
Notes
1. C
2. The condition is V
2004 May 25
t
t
t
C
C
PHL
PZH
PHZ
SYMBOL
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-trough standard pin-out architecture
Low inductance multiple power and ground pins for
minimum noise and ground bounce
Direct interface with TTL levels
Inputs accept voltages up to 5.5 V
All data inputs have bushold
Integrated 30
Complies with JEDEC standard JESD8B/JESD36
ESD protection:
HBM EIA/JESD22-A114-B exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
Specified from 40 C to +85 C
Packaged in plastic fine-pitch ball grid array package.
I
PD
32-bit buffer/line driver; with 30
resistors; 5 V input/output tolerant; 3-state
P
f
f
C
V
N = total load switching outputs;
i
o
/t
/t
/t
(C
D
CC
PD
= input frequency in MHz;
L
PLH
PZL
PLZ
= output frequency in MHz;
= output load capacitance in pF;
= C
L
is used to determine the dynamic power dissipation (P
= supply voltage in Volts;
PD
V
CC
propagation delay nAn to nYn
3-state output enable time nOE to nYn
3-state output disable time nOE to nYn
input capacitance
power dissipation capacitance per gate
2
V
amb
CC
termination resistors
f
o
2
= 25 C; t
) = sum of the outputs.
I
f
= GND to V
i
N + (C
PARAMETER
r
= t
f
L
CC
2.5 ns.
.
V
CC
2
f
o
) where:
series termination
2
C
C
C
V
DESCRIPTION
The 74LVCH322244A is a high-performance, low-power,
low-voltage, Si-gate CMOS device, superior to most
advanced CMOS compatible TTL families. Inputs can be
driven from either 3.3 V or 5 V devices. In 3-state
operation, outputs can handle 5 V. These features allow
the use of these devices in a mixed 3.3 V and 5 V
environment.
The 74LVCH322244A is a 32-bit non-inverting buffer/line
driver with 3-state outputs. The 3-state outputs are
controlled by the output enable inputs nOE. A HIGH on
input nOE causes the outputs to assume a
high-impedance OFF-state.
The 74LVCH322244A is designed with 30
termination resistors in both HIGH and LOW output stages
to reduce line noise.
To ensure the high-impedance state during power-up or
power-down, input nOE should be tied to V
pull-up resistor; the minimum value of the resistor is
determined by the current-sinking capability of the driver.
The 74LVCH322244A bushold data input circuit eliminates
the need for external pull-up resistors to hold unused or
floating data inputs at a valid logic level.
I
L
L
L
outputs enabled
outputs disabled
D
= 3.3 V; notes 1 and 2
= 50 pF; V
= 50 pF; V
= 50 pF; V
in W).
CONDITIONS
CC
CC
CC
= 3.3 V
= 3.3 V
= 3.3 V
3.0
3.5
2.8
5.0
12
4.0
74LVCH322244A
TYPICAL
Product specification
CC
ns
ns
ns
pF
pF
pF
series
through a
UNIT