54VCXH162244
Low voltage CMOS 16-bit bus buffer (3-state non inverter)
with 3.6 V tolerant inputs and outputs
Features
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1.65 to 3.6 V inputs and outputs
High speed:
– t
PD
= 3.4 ns at V
CC
= 3.0 to 3.6 V
– t
PD
= 3.8 ns at V
CC
= 2.3 to 2.7 V
Power down protection on inputs and outputs
Symmetrical output impedance:
– |I
OH
| = I
OL
= 12 mA (Min.) at V
CC
= 3.0 V
– |I
OH
| = I
OL
= 8 mA (Min.) at V
CC
= 2.3 V
26
Ω
serie resistors in outputs
Operating voltage range:
– V
CC
(Opr) = 1.65 V to 3.6 V
Pin and function compatible with 54 series
H162244
Bus hold provided on data inputs
Cold spare function
Latch-up performance exceeds
300 mA (JESD 17)
ESD performance:
– HBM > 2000 V
(Mil Std 883 Method 3015); MM > 200 V
300 krad Mil1019.6 condition A, (RHA QML
qualification extension undergone)
No SEL, no SEU and no SET under 110
Mev/cm2/mg LET heavy ions irradiation
QML qualified product
SMD 5962-05210
100 mV typical input hysteresis
Flat-48
The upper metallic lid is not electrically connected to any
pins, nor to the IC die inside the package.
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Description
The 54VCXH162244 is a low voltage CMOS 16
bit bus buffer (non inverted) fabricated with sub-
micron silicon gate and five-layer metal wiring
C²MOS technology. It is ideal for low power and
very high speed 1.65 to 3.6 V applications; it can
be interfaced to 3.6 V signal environment for both
inputs and outputs. Any nG output control
governs four BUS buffers. Output enable input
(nG) tied together gives full 16-bit operation.
When nG is low, the outputs are on. When nG is
high, the output are in high impedance state. This
device is designed to be used with 3 state
memory address drivers, etc. Bus hold on data
inputs is provided in order to eliminate the need
for external pull-up or pull-down resistor. The
device circuits is including 26
Ω
series resistance
in the outputs. These resistors permit to reduce
line noise in high speed applications. All inputs
and outputs are equipped with protection circuits
against static discharge, giving them 2 kV ESD
immunity and transient excess voltage.
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July 2011
Doc ID 10652 Rev 9
1/18
www.st.com
18
Contents
54VCXH162244
Contents
1
2
Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
2.2
2.3
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
5
6
7
8
9
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2/18
Doc ID 10652 Rev 9
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