74VCXR162245
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS
s
s
3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED IN BOTH A, B OUTPUTS:
t
PD
= 3.4 ns (MAX.) at V
CC
= 3.0 to 3.6V
t
PD
= 4.3 ns (MAX.) at V
CC
= 2.3 to 2.7V
t
PD
= 5.7 ns (MAX.) at V
CC
= 1.8V
SYMMETRICAL IMPEDANCE OUTPUTS:
|I
OH
| = I
OL
= 12mA (MIN) at V
CC
= 3.0V
|I
OH
| = I
OL
= 8mA (MIN) at V
CC
= 2.3V
|I
OH
| = I
OL
= 4mA (MIN) at V
CC
= 1.8V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
26Ω SERIE RESISTORS IN BOTH A AND B
PORT OUTPUTS
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 1.8V to 3.6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES R162245
LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
TSSOP
s
s
ORDER CODES
PACKAGE
TSSOP
TUBE
s
s
PIN CONNECTION
-
et
l
)
(s
so
b
ct
u
d
-O
ro
s)
P
t(
te
uc
le
o
od
r
s
P
b
O
te
le
so
b
O
s
s
s
b
O
so
te
le
ro
P
uc
d
s)
t(
74VCXR162245TTR
P
e
od
r
s)
t(
uc
T&R
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74VCXR162245 is a low voltage CMOS 16
BIT BUS TRANSCEIVER (3-STATE) fabricated
with sub-micron silicon gate and five-layer metal
wiring C
2
MOS technology. It is ideal for low power
and very high speed 1.8 to 3.6V applications; it
can be interfaced to 3.6V signal environment for
both inputs and outputs.
This IC is intended for two-way asynchronous
communication between data buses; the direction
of data transmission is determined by DIR input.
The two enable inputs nG can be used to disable
the device so that the buses are effectively
isolated. The device circuits is including 26Ω se-
ries resistance in the A and B port 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 2KV ESD immunity and transient excess
voltage. All floating bus terminals during High Z
State must be held HIGH or LOW.
July 2003
1/13
74VCXR162245
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1
2, 3, 5, 6, 8, 9,
11, 12
13, 14, 16, 17,
19, 20, 22, 23
24
25
36, 35, 33, 32,
30, 29, 27, 26
47, 46, 44, 43,
41, 40, 38, 38
48
4, 10, 15, 21,
28, 34, 39, 45
7, 18, 31, 42
SYMBOL
NAME AND FUNCTION
IEC LOGIC SYMBOLS
1DIR
Directional Control
1B1 to 1B8 Data Inputs/Outputs
2B1 to 2B8 Data Inputs/Outputs
2DIR
Directional Control
2G
Output Enable Input
2A1 to 2A8 Data Inputs/Outputs
1A1 to 1A8 Data Inputs/Outputs
1G
-
et
l
)
(s
so
b
ct
u
d
-O
ro
s)
P
t(
te
uc
le
o
od
r
s
P
b
O
te
le
so
b
O
Output Enable Input
Ground (0V)
GND
V
CC
Positive Supply Voltage
b
O
so
te
le
ro
P
uc
d
s)
t(
P
e
od
r
s)
t(
uc
TRUTH TABLE
INPUTS
FUNCTION
OUTPUT
Yn
G
L
L
H
DIR
L
H
X
A BUS
B BUS
OUTPUT
INPUT
INPUT
OUTPUT
Z
Z
A=B
B=A
Z
X : Don‘t Care
Z : High Impedance
2/13
74VCXR162245
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
V
O
I
IK
I
OK
I
O
Supply Voltage
DC Input Voltage
DC Output Voltage (OFF State)
DC Output Voltage (High or Low State) (note 1)
DC Input Diode Current
DC Output Diode Current (note 2)
DC Output Current
Parameter
Value
-0.5 to +4.6
-0.5 to +4.6
-0.5 to +4.6
-0.5 to V
CC
+ 0.5
- 50
- 50
±
50
±
100
400
-65 to +150
Unit
V
V
V
V
mA
mA
mA
I
CC
or I
GND
DC V
CC
or Ground Current per Supply Pin
Power Dissipation
P
D
T
stg
T
L
Storage Temperature
Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) I
O
absolute maximum rating must be observed
2) V
O
< GND, V
O
> V
CC
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
O
V
O
I
OH
, I
OL
I
OH
, I
OL
I
OH
, I
OL
T
op
dt/dv
Supply Voltage
Input Voltage
Output Voltage (OFF State)
Output Voltage (High or Low State)
Parameter
High or Low Level Output Current (V
CC
= 3.0 to 3.6V)
High or Low Level Output Current (V
CC
= 2.3 to 2.7V)
High or Low Level Output Current (V
CC
= 1.8V)
Operating Temperature
Input Rise and Fall Time (note 1)
od
s)
r
P
t(
te
uc
le
o
od
r
s
P
b
O
te
le
so
b
O
1) V
IN
from 0.8V to 2V at V
CC
= 3.0V
uc
s)
t(
O
-
so
b
te
le
r
P
du
o
300
ct
s)
(
mA
°C
°C
mW
so
b
-O
te
le
r
P
1.8 to 3.6
0 to 3.6
0 to V
CC
±
12
±
8
±
4
od
Value
s)
t(
uc
Unit
V
V
V
V
mA
mA
mA
°C
-0.3 to 3.6
-55 to 125
0 to 10
ns/V
3/13
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