74VCXH16245
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS
s
s
s
s
s
s
s
s
s
3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED:
t
PD
= 2.5 ns (MAX.) at V
CC
= 3.0 to 3.6V
t
PD
= 3.2 ns (MAX.) at V
CC
= 2.3 to 2.7V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN) at V
CC
= 3.0V
|I
OH
| = I
OL
= 18mA (MIN) at V
CC
= 2.3V
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 1.8V to 3.6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES H16245
BUS HOLD PROVIDED ON BOTH SIDES
LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
TSSOP
ORDER CODES
PACKAGE
TSSOP
TUBE
74VCXH16245TTR
PIN CONNECTION
O
DESCRIPTION
The 74VCXH16245 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 2.3 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.
Bus hold on data inputs is provided in order to
eliminate the need for external pull-up or
pull-down resistor.
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.
so
b
te
le
ro
P
uc
d
s)
t(
so
b
-O
P
te
le
od
r
s)
t(
uc
T&R
July 2003
1/11
74VCXH16245
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
GND
V
CC
Output Enable Input
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
G
bs
O
L
L
H
l
o
te
e
DIR
L
H
X
ro
P
A BUS
uc
d
B BUS
s)
t(
Yn
A=B
B=A
Z
so
b
-O
P
te
le
od
r
s)
t(
uc
FUNCTION
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
Z
Z
X : Don‘t Care
Z : High Impedance
2/11
74VCXH16245
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
300
Unit
V
V
V
V
mA
mA
mA
mA
mW
°C
°C
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
T
op
dt/dv
Supply Voltage
Input Voltage
Output Voltage (OFF State)
Output Voltage (High or Low State)
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)
Operating Temperature
Input Rise and Fall Time (note 1)
Parameter
1) V
IN
from 0.8V to 2V at V
CC
= 3.0V
O
so
b
te
le
ro
P
uc
d
s)
t(
so
b
-O
te
le
r
P
2.3 to 3.6
0 to 3.6
0 to V
CC
±
24
±
18
od
Value
s)
t(
uc
Unit
V
V
V
V
mA
mA
°C
-0.3 to 3.6
-55 to 125
0 to 10
ns/V
3/11
74VCXH16245
DC SPECIFICATIONS
(2.7V < V
CC
< 3.6V unless otherwise specified)
Test Condition
Symbol
Parameter
V
CC
(V)
-40 to 85 °C
Min.
2.0
2.7 to 3.6
0.8
2.7 to 3.6
2.7
3.0
V
OL
Low Level Output
Voltage
2.7 to 3.6
2.7
3.0
I
I
I
I(HOLD)
Input Leakage
Current
Input Hold Current
2.7 to 3.6
3.0
3.6
I
off
I
OZ
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
I
CC
incr. per Input
0
2.7 to 3.6
I
O
=-100
µA
I
O
=-12 mA
I
O
=-18 mA
I
O
=-24 mA
I
O
=100
µA
I
O
=12 mA
I
O
=18 mA
I
O
=24 mA
V
I
= 0 to 3.6V
V
I
= 0.8V
V
I
= 2V
V
I
= 0 to 3.6V
V
I
or V
O
= 0 to 3.6V
V
I
= V
IH
or V
IL
V
O
= 0 to 3.6V
75
-75
V
CC
-0.2
2.2
2.4
2.2
0.2
0.4
0.4
0.55
±
5
V
CC
-0.2
2.2
2.4
2.2
0.2
0.4
0.4
0.55
±
5
V
0.8
Max.
Value
-55 to 125 °C
Min.
2.0
V
Max.
Unit
V
IH
V
IL
V
OH
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
I
CC
2.7 to 3.6
2.7 to 3.6
∆I
CC
O
so
b
te
le
ro
P
uc
d
s)
t(
V
I
= V
CC
or GND
V
I
or V
O
= V
CC
to
3.6V
V
IH
= V
CC
- 0.6V
b
-O
so
P
te
le
±
500
10
±
10
20
±
20
750
od
r
75
-75
s)
t(
uc
±
500
10
±
10
20
±
20
750
V
µA
µA
µA
µA
µA
µA
4/11
74VCXH16245
DC SPECIFICATIONS
(2.3V < V
CC
< 2.7V unless otherwise specified)
Test Condition
Symbol
Parameter
V
CC
(V)
-40 to 85 °C
Min.
1.6
2.3 to 2.7
0.7
2.3 to 2.7
2.3
V
OL
Low Level Output
Voltage
2.3 to 2.7
2.3
I
I
I
I(HOLD)
I
off
I
OZ
Input Leakage
Current
Input Hold Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
2.3 to 2.7
2.3
0
2.3 to 2.7
I
O
=-100
µA
I
O
=-6 mA
I
O
=-12 mA
I
O
=-18 mA
I
O
=100
µA
I
O
=12 mA
I
O
=18 mA
V
I
= 0 to 3.6V
V
I
= 0.7V
V
I
= 1.7V
V
I
or V
O
= 0 to 3.6V
V
I
= V
IH
or V
IL
V
O
= 0 to 3.6V
V
I
= V
CC
or GND
V
I
or V
O
= V
CC
to
3.6V
45
-45
V
CC
-0.2
2.0
1.8
1.7
0.2
0.4
0.6
±
5
V
CC
-0.2
2.0
1.8
1.7
0.2
0.4
0.6
V
V
0.7
Max.
Value
-55 to 125 °C
Min.
1.6
V
Max.
Unit
V
IH
V
IL
V
OH
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
I
CC
2.3 to 2.7
DYNAMIC SWITCHING CHARACTERISTICS
Symbol
Parameter
V
OLP
V
OLV
b
O
V
OHV
so
et
l
Dynamic Low Voltage Quiet
Output (note 1, 3)
Dynamic Low Voltage Quiet
Output (note 1, 3)
Dynamic High Voltage Quiet
Output (note 2, 3)
P
e
ro
uc
d
s)
t(
b
-O
so
P
te
le
10
±
10
20
±
20
od
r
-45
45
s)
t(
uc
±
5
10
±
10
20
±
20
µA
µA
µA
µA
µA
(T
a
= 25°C, Input t
r
= t
f
= 2.0ns, C
L
= 30pF, R
L
= 500Ω)
Test Condition
Value
T
A
= 25 °C
Min.
V
IL
= 0V
V
IH
= V
CC
V
IL
= 0V
V
IH
= V
CC
V
IL
= 0V
V
IH
= V
CC
Typ.
0.6
0.8
-0.6
-0.8
1.9
2.2
Max.
V
V
V
Unit
V
CC
(V)
2.5
3.3
2.5
3.3
2.5
3.3
1) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is
measured in the LOW state.
2) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is
measured in the HIGH state.
3) Parameters guaranteed by design.
5/11
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