IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
CMOS 16-BIT 3.3V
TO 5V LEVEL SHIFTING
TRANSCEIVER WITH
3-STATE OUTPUTS
FEATURES:
• 0.5 MICRON CMOS Technology
• Typical t
SK(o)
(Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• V
CCA
= 2.7V to 3.6V
• V
CCB
= 5V ± 0.5V
• CMOS power levels (0.4μ W typ. static)
μ
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP and TSSOP packages
IDT74ALVC164245
DESCRIPTION:
This 16-bit 3.3V to 5V level shifting transceiver is manufactured using
advanced dual metal CMOS technology. The ALVC164245 contains two
separate supply rails; B port has V
CCB
, which is set at 5V, and A port has
V
CCA
, which is set to operate at 3.3V. This allows for translation from a 3.3V
to 5V environment and vice-versa. This device is designed for asynchro-
nous communication between data buses.
The ALVC164245 has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Suitable for heavy loads
APPLICATIONS:
• Mixed 3.3V and 5V High Speed Systems
• 5V PCI Interface to 3.3V PC Bus Structures
• Telecommunication Legacy Systems with transitions from 5V to
3.3V
FUNCTIONAL BLOCK DIAGRAM
1
DIR
1
48
2
DIR
1
OE
2
A
1
2
24
25
36
13
2
OE
1
A
1
47
1
B
1
2
A
2
35
2
B
1
1
A
2
46
3
1
B
2
2
A
3
1
B
3
33
14
2
B
2
1
A
3
44
3.3V Port
3.3V Port
5
16
2
B
3
1
A
4
43
2
A
4
32
17
5V Port
6
1
B
4
2
B
4
1
A
5
41
8
2
A
5
30
19
1
B
5
2
A
6
29
2
B
5
1
A
6
40
9
1
B
6
2
A
7
27
20
2
B
6
1
A
7
38
11
1
B
7
2
A
8
26
22
2
B
7
1
A
8
37
12
1
B
8
23
2
B
8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2009 Integrated Device Technology, Inc.
JUNE 2009
DSC-4477/9
5V Port
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
1
DIR
1
B
1
1
B
2
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
TERM
(2)
Description
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Continuous Clamp Current,
V
I
< 0 or V
I
> V
CC
Continuous Clamp Current, V
O
< 0
Continuous Current through each
V
CC
or GND
Max
–0.5 to +6
–0.5 to +6
–65 to +150
–50 to +50
±50
–50
±100
Unit
V
V
°C
mA
mA
mA
mA
V
TERM
(3)
T
STG
I
OUT
I
IK
I
OK
I
CC
I
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
OE
1
A
1
1
A
2
GND
1
B
3
1
B
4
GND
1
A
3
1
A
4
(5V) V
CCB
1
B
5
1
B
6
V
CCA
(3.3V)
1
A
5
1
A
6
GND
1
B
7
1
B
8
2
B
1
2
B
2
GND
1
A
7
1
A
8
2
A
1
2
A
2
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. V
CC
terminals.
3. All terminals except V
CC
.
CAPACITANCE
(T
A
= +25°C, F = 1.0MHz, V
CCA
= 3.3V)
Symbol
C
IN
C
I/O
Parameter
(1)
A Port Input Capacitance
A Port I/O Capacitance
Conditions
V
IN
= 0V
V
IN
= 0V
Typ.
6.5
8.5
Max.
—
—
Unit
pF
pF
GND
2
B
3
2
B
4
GND
2
A
3
2
A
4
NOTE:
1. As applicable to the device type.
(5V) V
CCB
2
B
5
2
B
6
V
CCA
(3.3V)
2
A
5
2
A
6
GND
2
B
7
2
B
8
2
DIR
GND
2
A
7
2
A
8
2
OE
CAPACITANCE
(T
A
= +25°C, F = 1.0MHz, V
CCB
= 5V)
Symbol
C
IN
C
I/O
Parameter
(1)
B Port Input Capacitance
B Port I/O Capacitance
Conditions
V
IN
= 0V
V
IN
= 0V
Typ.
6.5
6.5
Max.
—
—
Unit
pF
pF
SSOP/ TSSOP
TOP VIEW
NOTE:
1. As applicable to the device type.
PIN DESCRIPTION
Pin Names
xOE
(1)
xDIR
(1)
xAx
xBx
Description
Output Enable Inputs (Active LOW)
Direction Output Controls
Port A Inputs or 3-State Outputs
Port B Inputs or 3-State Outputs
FUNCTION TABLE
(EACH 8-BIT SECTION)
(1)
Inputs
xOE
L
L
H
xDIR
L
H
X
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
High Z State
NOTE:
1. All control inputs are powered off V
CCA
.
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
2
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (B PORT)
(1)
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: T
A
= –40°C to +85°C
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
H
I
CCL
I
CCH
I
CCZ
ΔI
CC
Parameter
Input HIGH Voltage Level
Input LOW Voltage Level
Input HIGH Current
Input LOW Current
High Impedance Output Current
(3-State Output pins)
Input Hysteresis
Quiescent Power Supply Current
V
CCB
= 4.5V
V
CCB
= 5.5V
V
IN
= GND or V
CCB
One input at 3.4V, other inputs at V
CCB
or GND
V
CCB
= 4.5V to 5.5V
V
CCB
= 4.5V to 5.5V
V
CCB
= 5.5V
V
CCB
= 5.5V
V
CCB
= 5.5V
V
I
= V
CC
V
I
= GND
V
O
= V
CC
V
O
= GND
Test Conditions
Min.
2
—
—
—
—
—
—
—
Typ.
(2)
—
—
—
—
—
—
100
0.1
Max.
—
0.8
±5
±5
±10
±10
—
40
mV
µA
Unit
V
V
µA
µA
µA
Quiescent Power Supply Current
Variation
—
—
750
µA
NOTES:
1. V
CCA
= 2.7V to 3.6V.
2. Typical values are at V
CC
= 5V, +25°C ambient.
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (A PORT)
(1,2)
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: T
A
= –40°C to +85°C
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
H
I
CCL
I
CCH
I
CCZ
ΔI
CC
Parameter
Input HIGH Voltage Level
Input LOW Voltage Level
Input HIGH Current
Input LOW Current
High Impedance Output Current
(3-State Output pins)
Input Hysteresis
Quiescent Power Supply Current
V
CCA
= 3.3V
V
CCA
= 3.6V
V
IN
= GND or V
CCA
One input at V
CCA
- 0.6V, other inputs at V
CCA
or GND
V
CCA
= 2.7V to 3.6V
V
CCA
= 2.7V to 3.6V
V
CCA
= 3.6V
V
CCA
= 3.6V
V
CCA
= 3.6V
V
I
= V
CC
V
I
= GND
V
O
= V
CC
V
O
= GND
Test Conditions
Min.
2
—
—
—
—
—
—
—
Typ.
(3)
—
—
—
—
—
—
100
0.1
Max.
—
0.8
±5
±5
±10
±10
—
40
mV
µA
Unit
V
V
µA
µA
µA
Quiescent Power Supply Current
Variation
—
—
750
µA
NOTES:
1. V
CCB
= 5V
±
0.5V.
2. Control inputs xDIR,
OE
are supplied from V
CCA
.
3. Typical values are at V
CC
= 3.3V, +25°C ambient.
3
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS, V
CCA
= 3.3V ± 0.3V (A PORT)
Symbol
V
OH
Parameter
Output HIGH Voltage
(B Port to A Port)
V
CCA
= 2.7V
V
CCA
= 3V
V
CCA
= 3V
V
OL
Output LOW Voltage
(B Port to A Port)
V
CCA
= 2.7V to 3.6V
V
CCA
= 2.7V
V
CCA
= 3V
I
OH
= – 24mA
I
OL
= 0.1mA
I
OL
= 12mA
I
OL
= 24mA
Test Conditions
(1)
V
CCA
= 2.7V to 3.6V
I
OH
= – 0.1mA
I
OH
= – 12mA
Min.
V
CCA
– 0.2
2.2
2.4
2
—
—
—
Max.
—
—
—
—
0.2
0.4
0.55
V
Unit
V
NOTE:
1. V
IH
and V
IL
must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate V
CC
range.
T
A
= – 40°C to + 85°C; V
CCA
= 3.3V
±
0.3V.
OUTPUT DRIVE CHARACTERISTICS, V
CCB
= 5V ± 0.5V (B PORT)
Symbol
V
OH
Parameter
Output HIGH Voltage
(A Port to B Port)
V
CCB
= 4.5V
V
CCB
= 5.5V
V
CCB
= 4.5V
V
CCB
= 5.5V
V
OL
Output LOW Voltage
((A Port to B Port)
V
CCB
= 4.5V
V
CCB
= 5.5V
V
CCB
= 4.5V
V
CCB
= 5.5V
I
OL
= 24mA
I
OL
= 0.1mA
I
OH
= – 24mA
Test Conditions
(1)
I
OH
= – 0.1mA
Min.
4.3
5.3
3.7
4.7
—
—
—
—
Max.
—
—
—
—
0.2
0.2
0.55
0.55
V
Unit
V
NOTE:
1. V
IH
and V
IL
must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate V
CC
range.
T
A
= – 40°C to + 85°C; V
CCB
= 5V
±
0.5V.
4
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OPERATING CHARACTERISTICS, T
A
= 25°C
V
CCA
= 3.3V, V
CCB
= 5V
Symbol
C
PD
C
PD
Parameter
Power Dissipation Capacitance, Outputs enabled (A port or B port)
Power Dissipation Capacitance, Outputs disabled (A port or B port)
Test Conditions
C
L
= 0pF, f = 10Mhz
Typical
56
6
Unit
pF
SWITCHING CHARACTERISTICS
(1)
V
CCB
= 5V ± 0.5V
V
CCA
= 2.7V
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PHZ
t
PLZ
Parameter
Propagation Delay
xAx to xBx
Propagation Delay
xBx to xAx
Output Enable Time
xOE
to xBx
Output Enable Time
xOE
to xAx
Output Disable Time
xOE
to xBx
Output Disable Time
xOE
to xAx
—
9
2.9
8.6
ns
—
9.2
2.1
9.4
ns
—
10.2
2
9.1
ns
—
9.3
1
8.9
ns
—
6.7
1.2
5.8
ns
Min.
—
Max.
5.9
V
CCA
= 3.3V ± 0.3V
Min.
1
Max.
5.8
Unit
ns
NOTE:
1. See TEST CIRCUITS AND WAVEFORMS. T
A
= – 40°C to + 85°C.
5
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