INDUSTRIAL TEMPERATURE RANGE
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
1
JUNE 2009INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 2009 Integrated Device Technology, Inc. DSC-4477/9
FEATURES:
• 0.5 MICRON CMOS Technology
• Typical tSK(o) (Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
•VCCA = 2.7V to 3.6V
•VCCB = 5V ± 0.5V
• CMOS power levels (0.4μμ
μμ
μ W typ. static)
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP and TSSOP packages
FUNCTIONAL BLOCK DIAGRAM
DRIVE FEATURES:
• H i gh O u t p u t D r i v er s : ±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
IDT74ALVC164245
CMOS 16-BIT 3.3V
TO 5V LEVEL SHIFTING
TRANSCEIVER WITH
3-STATE OUTPUTS
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 VCCB, which is set at 5V, and A port has
VCCA, 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.
1
DIR
1
A
1
1
A
2
1
A
3
1
A
4
1
A
5
1
A
6
1
A
7
1
A
8
1
B
8
1
B
7
1
B
6
1
B
5
1
B
4
1
B
3
1
B
2
1
B
1
1
OE
2
DIR
2
A
1
2
A
2
2
A
3
2
A
4
2
A
5
2
A
6
2
A
7
2
A
8
2
B
8
2
B
7
2
B
6
2
B
5
2
B
4
2
B
3
2
B
2
2
B
1
2
OE
1
47
46
44
43
41
40
38
37
12
11
9
8
6
5
3
2
48
24
36
35
33
32
30
29
27
26
23
22
20
19
17
16
14
13
25
3.3V Port
5V Port
3.3V Port
5V Port
INDUSTRIAL TEMPERATURE RANGE
2
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
SSOP/ TSSOP
TOP VIEW
PIN CONFIGURATION
NOTE:
1. As applicable to the device type.
CAPACITANCE (TA = +25°C, F = 1.0MHz, VCCA = 3.3V)
Symbol Description Max Unit
VTERM(2) Terminal Voltage with Respect to GND –0.5 to +6 V
VTERM(3) Terminal Voltage with Respect to GND –0.5 to +6 V
TSTG Storage Temperature –65 to +150 °C
IOUT DC Output Current –50 to +50 mA
IIK Continuous Clamp Current, ±50 mA
VI < 0 or VI > VCC
IOK Continuous Clamp Current, VO < 0 –50 mA
ICC Continuous Current through each ±100 mA
ISS VCC or GND
ABSOLUTE MAXIMUM RATINGS(1)
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. VCC terminals.
3. All terminals except VCC.
1
DIR
1
B
1
GND
VCCB
GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
40
41
42
43
44
45
46
47
48
1
1
B
2
1
B
3
1
B
4
1
B
5
1
B
6
1
B
7
1
B
8
2
B
1
2
B
2
GND
2
B
3
2
B
4
2
B
6
2
B
5
VCCB
GND
2
B
8
2
B
7
2
DIR
1
OE
1
A
1
GND
VCCA
GND
1
A
2
1
A
3
1
A
4
1
A
5
1
A
6
1
A
7
1
A
8
2
A
1
2
A
2
GND
2
A
3
2
A
4
2
A
6
2
A
5
VCCA
GND
2
A
8
2
A
7
2
OE
(5V)
(5V)
(3.3V)
(3.3V)
NOTE:
1. As applicable to the device type.
CAPACITANCE (TA = +25°C, F = 1.0MHz, VCCB = 5V)
NOTE:
1 . H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
FUNCTION TABLE (EACH 8-BIT SECTION)(1)
Inputs
xOE xDIR Outputs
L L Bus B Data to Bus A
L H Bus A Data to Bus B
H X High Z State
Pin Names Description
xOE(1) Output Enable Inputs (Active LOW)
xDIR(1) Direction Output Controls
xAx Port A Inputs or 3-State Outputs
xBx Port B Inputs or 3-State Outputs
PIN DESCRIPTION
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN A Port Input Capacitance VIN = 0V 6.5 — pF
CI/O A Port I/O Capacitance VIN = 0V 8.5 — pF
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN B Port Input Capacitance VIN = 0V 6.5 — pF
CI/O B Port I/O Capacitance VIN = 0V 6.5 — pF
NOTE:
1. All control inputs are powered off VCCA.
INDUSTRIAL TEMPERATURE RANGE
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
3
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (B PORT)(1)
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: TA = –40°C to +85°C
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (A PORT)(1,2)
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: TA = –40°C to +85°C
Symbol Parameter Test Conditions Min. Typ.(2) Max. Unit
VIH Input HIGH Voltage Level VCCB = 4.5V to 5.5V 2 — — V
VIL Input LOW Voltage Level VCCB = 4.5V to 5.5V — — 0.8 V
IIH Input HIGH Current VCCB = 5.5V VI = VCC ——±5µA
IIL Input LOW Current VCCB = 5.5V VI = GND — — ±5µA
IOZH High Impedance Output Current VCCB = 5.5V VO = VCC ——±10 µA
IOZL (3-State Output pins) VO = GND — — ±10
VHInput Hysteresis VCCB = 4.5V — 100 — m V
ICCL Quiescent Power Supply Current VCCB = 5.5V — 0.1 40 µA
ICCH VIN = GND or VCCB
ICCZ
ΔICC Quiescent Power Supply Current One input at 3.4V, other inputs at VCCB or GND — — 750 µA
Variation
NOTES:
1. VCCA = 2.7V to 3.6V.
2. Typical values are at VCC = 5V, +25°C ambient.
Symbol Parameter Test Conditions Min. Typ.(3) Max. Unit
VIH Input HIGH Voltage Level VCCA = 2.7V to 3.6V 2 — — V
VIL Input LOW Voltage Level VCCA = 2.7V to 3.6V — — 0.8 V
IIH Input HIGH Current VCCA = 3.6V VI = VCC ——±5µA
IIL Input LOW Current VCCA = 3.6V VI = GND — — ±5µA
IOZH High Impedance Output Current VCCA = 3.6V VO = VCC ——±10 µA
IOZL (3-State Output pins) VO = GND — — ±10
VHInput Hysteresis VCCA = 3.3V — 100 — m V
ICCL Quiescent Power Supply Current VCCA = 3.6V — 0.1 40 µA
ICCH VIN = GND or VCCA
ICCZ
ΔICC Quiescent Power Supply Current One input at VCCA - 0.6V, other inputs at VCCA or GND — — 750 µA
Variation
NOTES:
1. VCCB = 5V ± 0.5V.
2. Control inputs xDIR, OE are supplied from VCCA.
3. Typical values are at VCC = 3.3V, +25°C ambient.
INDUSTRIAL TEMPERATURE RANGE
4
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
NOTE:
1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.
TA = – 40°C to + 85°C; VCCA = 3.3V ± 0.3V.
OUTPUT DRIVE CHARACTERISTICS, VCCA = 3.3V ± 0.3V (A PORT)
Symbol Parameter Test Conditions(1) Min. Max. Unit
VOH Output HIGH Voltage VCCA = 2.7V to 3.6V IOH = – 0.1mA VCCA – 0.2 — V
(B Port to A Port) VCCA = 2.7V IOH = – 12mA 2 .2 —
VCCA = 3V 2.4 —
VCCA = 3V IOH = – 24mA 2 —
VOL Output LOW Voltage VCCA = 2.7V to 3.6V IOL = 0.1mA — 0.2 V
(B Port to A Port) VCCA = 2.7V IOL = 12mA — 0.4
VCCA = 3V IOL = 24mA — 0.55
NOTE:
1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.
TA = – 40°C to + 85°C; VCCB = 5V ± 0.5V.
OUTPUT DRIVE CHARACTERISTICS, VCCB = 5V ± 0.5V (B PORT)
Symbol Parameter Test Conditions(1) Min. Max. Unit
VOH Output HIGH Voltage VCCB = 4.5V IOH = – 0.1mA 4 .3 — V
(A Port to B Port) VCCB = 5.5V 5 .3 —
VCCB = 4.5V IOH = – 24mA 3.7 —
VCCB = 5.5V 4.7 —
VOL Output LOW Voltage VCCB = 4.5V IOL = 0.1mA — 0.2 V
((A Port to B Port) VCCB = 5.5V — 0.2
VCCB = 4.5V IOL = 24mA — 0.55
VCCB = 5.5V — 0.55
INDUSTRIAL TEMPERATURE RANGE
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
5
SWITCHING CHARACTERISTICS(1)
VCCB = 5V ± 0.5V
VCCA = 2.7V VCCA = 3.3V ± 0.3V
Symbol Parameter Min. Max. Min. Max. Unit
tPLH Propagation Delay —5.9 1 5.8 ns
tPHL xAx to xBx
tPLH Propagation Delay —6.7 1.2 5.8 ns
tPHL xBx to xAx
tPZH Output Enable Time —9.3 1 8.9 ns
tPZL xOE to xBx
tPZH Output Enable Time —10.2 2 9.1 ns
tPZL xOE to xAx
tPHZ Output Disable Time —9.2 2.1 9.4 ns
tPLZ xOE to xBx
tPHZ Output Disable Time —9 2.9 8.6 ns
tPLZ xOE to xAx
NOTE:
1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.
OPERATING CHARACTERISTICS, TA = 25°C
VCCA = 3.3V, VCCB = 5V
Symbol Parameter Test Conditions Typical Unit
CPD Power Dissipation Capacitance, Outputs enabled (A port or B port) CL = 0pF, f = 10Mhz 56 pF
CPD Power Dissipation Capacitance, Outputs disabled (A port or B port) 6
INDUSTRIAL TEMPERATURE RANGE
6
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
Open
VLOAD
GND
VCC
Pulse
Generator D.U.T.
500Ω
500Ω
CL
RT
VIN VOUT
(1, 2)
ALVC Link
SAME PHASE
INPUT TRANSITION
OPPOSITE PHASE
INPUT TRANSITION
0V
0V
VOH
VOL
tPLH tPHL
tPHL
tPLH
OUTPUT
VIH
VT
VT
VIH
VT
ALVC Link
CONTROL
INPUT
tPLZ 0V
OUTPUT
NORMALLY
LOW tPZH
0V
SWITCH
CLOSED
OUTPUT
NORMALLY
HIGH
ENABLE DISABLE
SWITCH
OPEN
tPHZ
0V
VOL + VLZ
VOH
VT
VT
tPZL
VLOAD/2 VLOAD/2
VIH
VT
VOL
VOH - VHZ
ALVC Link
Propagation Delay
Test Circuit for All Outputs Enable and Disable Times
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
NOTE:
1. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Symbol VCCA = 3.3V±0.3V VCCA = 2.7V Unit
VLOAD 66V
VIH 33V
VT1.5 1.5 V
VLZ 300 300 mV
VOH - VHZ 300 300 mV
CL50 50 pF
TEST CONDITIONS
SWITCH POSITION
Test Switch
Disable Low VLOAD
Enable Low
Disable High GND
Enable High
All Other Tests Open
TEST CIRCUITS AND WAVEFORMS FOR VCCA = 3.3V ± 0.3V AND VCCA = 2.7V
INDUSTRIAL TEMPERATURE RANGE
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
7
SAME PHASE
INPUT TRANSITION
OPPOSITE PHASE
INPUT TRANSITION
0V
0V
V
OH
V
OL
tPLH tPHL
tPHL
tPLH
OUTPUT
V
IH
V
T
V
CCB / 2
V
IH
V
CCB / 2
CONTROL
INPUT
tPLZ 0V
OUTPUT
NORMALLY
LOW t
PZH
0V
SWITCH
CLOSED
OUTPUT
NORMALLY
HIGH
ENABLE DISABLE
SWITCH
OPEN
tPHZ
0V
VLZ
VOH
V
CCB / 2
V
CCB / 2
tPZL
VLOAD/2 VLOAD/2
VIH
VT
VOL
VHZ
Propagation Delay
Enable and Disable Times
NOTES:
1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs.
2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Symbol VCCB(1) = 5V±0.2V Unit
VLOAD 2 x VCCB V
VIH 2.7 V
VT1.5 or VCCB / 2 V
VLZ 20% of VCCB mV
VHZ 80% of VCCB mV
CL50 pF
TEST CONDITIONS (USE VCCA TEST CIRCUIT)
NOTE:
1. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
TEST CIRCUITS AND WAVEFORMS FOR VCCB = 5V ± 0.5V
INDUSTRIAL TEMPERATURE RANGE
8
IDT74ALVC164245
16-BIT 3.3V TO 5V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
ORDERING INFORMATION
XX ALVC XXX XX
Package
Device Type
Temp. Range
PVG
PAG
164
74
Shrink Small Outline Package - Green
Thin Shrink Small Outline Package - Green
16-Bit 3.3V to 5V Level Shifting Transceiver
with 3-State Outputs
– 40°C to +85°C
XXX
Family
Bus-Hold
245
No Bus-Hold
Double-Density, ±24mA
Blank
CORPORATE HEADQUARTERS for SALES: for Tech Support:
6024 Silver Creek Valley Road 800-345-7015 or 408-284-8200 logichelp@idt.com
San Jose, CA 95138 fax: 408-284-2775
www.idt.com
