74VCXH16245
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS
■
■
■
■
■
■
■
■
■
3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED: t
PD t
PD
= 2.5 ns (MAX.) at V
= 3.2 ns (MAX.) at V
CC
CC
= 3.0 to 3.6V
= 2.3 to 2.7V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
|I
OH
| = I
| = I
OL
OL
= 24mA (MIN) at V
CC
= 18mA (MIN) at V
CC
= 3.0V
= 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
ORDER CODES
PACKAGE
TSSOP
TUBE
PIN CONNECTION
TSSOP
T & R
74VCXH16245TTR
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.
Obsolete Product(s) - Obsolete Product(s) 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 1/11
74VCXH16245
INPUT AND OUTPUT EQUIVALENT CIRCUIT
IEC LOGIC SYMBOLS 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
1DIR Directional Control
1B1 to 1B8 Data Inputs/Outputs
2B1 to 2B8 Data Inputs/Outputs
2DIR
2G
Directional Control
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 FUNCTION OUTPUT
G DIR A BUS B BUS Yn
L L OUTPUT INPUT A = B
L H INPUT OUTPUT B = A
H X Z Z Z Obsolete Product(s) - Obsolete Product(s)
Z : High Impedance
2/11
74VCXH16245
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
V
I
V
O
V
O
I
IK
Supply Voltage
DC Input Voltage
DC Output Voltage (OFF State)
DC Output Voltage (High or Low State) (note 1)
DC Input Diode Current
-0.5 to +4.6
-0.5 to +4.6
-0.5 to +4.6
-0.5 to V
CC
- 50
+ 0.5
V
V
V
V mA
I
OK
I
O
I
CC or I
GND
DC Output Diode Current (note 2)
DC Output Current
- 50
±
50
±
100 mA mA
P
D
T stg
DC V
CC or Ground Current per Supply Pin
Power Dissipation
Storage Temperature
400
-65 to +150 mA mW
°C
T
L
Lead Temperature (10 sec) 300 °C
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
2) V
O absolute maximum rating must be observed
< GND, V
O
> V
CC
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter
V
CC
V
I
V
O
V
O
I
OH
, I
OL
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)
I
OH
, I
OL
T op
High or Low Level Output Current (V
Operating Temperature dt/dv Input Rise and Fall Time (note 1)
1) V
IN from 0.8V to 2V at V
CC
= 3.0V
CC
= 2.3 to 2.7V)
Value
2.3 to 3.6
-0.3 to 3.6
0 to 3.6
0 to V
CC
±
24
±
18
-55 to 125
0 to 10
Unit
V
V
V
V mA mA
°C 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.
Max.
Value
-55 to 125 °C
Min.
Max.
V
IH
V
IL
V
OH
V
OL
I
I
I
I(HOLD)
I off
I
OZ
I
CC
∆
I
CC
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Input Hold Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
I
CC incr. per Input
2.7 to 3.6
2.7 to 3.6
2.7
3.0
2.7 to 3.6
2.7
3.0
2.7 to 3.6
3.0
3.6
0
I
O
=-100
µ
A
I
O
=-12 mA
I
O
=-18 mA
I
O
=-24 mA
I
O
=100
µ
A
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
CC
-0.2
2.2
2.4
2.2
75
-75
2.7 to 3.6
V
I
V
O
= V
IH or V
IL
= 0 to 3.6V
2.7 to 3.6
V
I
= V
CC or GND
V
I or V
O
= V
3.6V
CC to
2.7 to 3.6
V
IH
= V
CC
- 0.6V
2.0
0.8
0.2
0.4
0.4
0.55
±
5
±
500
10
±
10
20
±
20
750
2.0
V
CC
-0.2
2.2
2.4
2.2
75
-75
0.8
0.2
0.4
0.4
0.55
±
5
±
500
10
±
10
20
±
20
750
Unit
V
V
V
µ
A
µ
A
µ
A
µ
A
µ
A
µ
A
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.
Max.
Value
-55 to 125 °C
Min.
Max.
V
IH
V
IL
V
OH
V
OL
I
I
I
I(HOLD)
I off
I
OZ
I
CC
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Input Hold Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
2.3 to 2.7
1.6
2.3 to 2.7
2.3
2.3 to 2.7
2.3
2.3 to 2.7
2.3
0
I
O
=-100
µ
A
I
O
=-6 mA
I
O
=-12 mA
I
O
=-18 mA
I
O
=100
µ
A
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
CC
-0.2
2.0
1.8
1.7
45
-45
2.3 to 2.7
2.3 to 2.7
V
I
V
O
= V
IH or V
IL
= 0 to 3.6V
V
I
= V
CC or GND
V
I or V
O
= V
3.6V
CC to
0.7
0.2
0.4
0.6
±
5
10
±
10
20
±
20
1.6
V
CC
-0.2
2.0
1.8
1.7
45
-45
0.7
10
±
10
20
±
20
0.2
0.4
0.6
±
5
Unit
V
V
V
µ
A
µ
A
µ
A
µ
A
µ
A
DYNAMIC SWITCHING CHARACTERISTICS (T a
= 25°C, Input t r
= t f
= 2.0ns, C
L
= 30pF, R
L
= 500
Ω)
Test Condition Value
Symbol Parameter T
A
= 25 °C Unit
V
CC
(V)
Min.
Typ.
Max.
V
OLP
V
OLV
Dynamic Low Voltage Quiet
Output (note 1, 3)
Dynamic Low Voltage Quiet
Output (note 1, 3)
2.5
3.3
2.5
3.3
V
IL
= 0V
V
IH
= V
CC
V
IL
V
IH
= 0V
= V
CC
0.6
0.8
-0.6
-0.8
V
V
Dynamic High Voltage Quiet 2.5
= 0V 1.9
V
OHV
V
IL
V
Output (note 2, 3)
3.3
V
IH
= V
CC
2.2
Obsolete Product(s) - Obsolete Product(s)
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
74VCXH16245
AC ELECTRICAL CHARACTERISTICS (C
L
= 30pF, R
L
= 500
Ω,
Input t r
= t f
= 2.0ns
)
Test Condition Value
Symbol Parameter
V
CC
(V)
-40 to 85 °C -55 to 125 °C Unit
Min.
Max.
Min.
Max.
t t
PLH
PZL t t
PHL
PZH
Propagation Delay
Time
Output Enable Time
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
1.0
0.8
1.0
0.8
3.2
2.5
4.9
3.8
1.0
0.8
1.0
0.8
3.8
3.1
5.6
4.4
ns ns t
PLZ t
PHZ
Output Disable Time 2.3 to 2.7
3.0 to 3.6
1.0
0.8
4.2
3.7
1.0
0.8
4.8
4.3
ns t
OSLH t
OSHL
Output To Output
Skew Time (note1, 2)
2.3 to 2.7
0.5
0.5
ns
3.0 to 3.6
0.5
0.5
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (t
2) Parameter guaranteed by design
OSLH
= | t
PLHm
- t
PLHn
|, t
OSHL
= | t
PHLm
- t
PHLn
|)
CAPACITIVE CHARACTERISTICS
Test Condition Value
Symbol Parameter
V
CC
(V)
T
A
= 25 °C Unit
Min.
Typ.
Max.
C
IN
C
OUT
Input Capacitance
Output Capacitance
2.5 or 3.3
2.5 or 3.3
V
V
IN
IN
= 0 or V
= 0 or V
CC
CC
4
8 pF pF
C
PD
Power Dissipation Capacitance
(note 1)
2.5 or 3.3
f
IN
V
IN
= 10MHz
= 0 or V
CC
28 pF
1) C
PD circuit) is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD x V
CC x f
IN
+ I
CC
/16 (per
6/11
74VCXH16245
TEST CIRCUIT
TEST t
PLH
, t
PHL t
PZL
, t
PLZ
(V
CC
= 3.0 to 3.6V) t
PZL
, t
PLZ
(V
CC
= 2.3 to 2.7V) t
PZH
, t
PHZ
C
L
R
L
R
T
= 30 pF or equivalent (includes jig and probe capacitance)
= R1 = 500
Ω or equivalent
= Z
OUT of pulse generator (typically 50
Ω
)
WAVEFORM SYMBOL VALUES
Symbol
V
IH
V
M
V
X
V
Y
3.0 to3.6V
2.7V
1.5V
V
OL
+ 0.3V
V
OH
- 0.3V
V
CC
SWITCH
Open
6V
2V
CC
GND
2.3 to 2.7V
V
CC
V
CC
/2
V
OL
+ 0.15V
V
OH
- 0.15V
7/11
74VCXH16245
WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
8/11
DIM.
E1 e
D
E
K
L
A
A1
A2 b c
74VCXH16245
MIN.
0.05
0.17
0.09
12.4
6.0
0˚
0.50
TSSOP48 MECHANICAL DATA
mm.
TYP MIN.
MAX.
1.2
0.15
0.002
0.9
0.27
0.20
12.6
0.0067
0.0035
0.488
8.1 BSC
6.2
0.236
0.5 BSC
8˚
0.75
0˚
0.020
inch
TYP.
0.035
0.318 BSC
0.0197 BSC
MAX.
0.047
0.006
0.011
0.0079
0.496
0.244
8˚
0.030
A A2
A1 b e
D c
K
L
E
E1 Obsolete Product(s) - Obsolete Product(s)
PIN 1 IDENTIFICATION
1
7065588C
9/11
74VCXH16245
DIM.
D
N
T
A
C
Ao
Bo
Ko
Po
P
8.7
13.1
1.5
3.9
11.9
MIN.
12.8
20.2
60
Tape & Reel TSSOP48 MECHANICAL DATA
mm.
TYP MIN.
MAX.
330
13.2
inch
TYP.
0.504
0.795
2.362
30.4
8.9
13.3
1.7
4.1
12.1
0.343
0.516
0.059
0.153
0.468
MAX.
12.992
0.519
1.197
0.350
0.524
0.067
0.161
0.476
10/11
74VCXH16245
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
Obsolete Product(s) - Obsolete Product(s) its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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11/11
