IDT IDT74FCT164245TPVG

IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
FAST CMOS 16-BIT
BIDIRECTIONAL
3.3V TO 5V TRANSLATOR
IDT74FCT164245T
FEATURES:
DESCRIPTION:
•
•
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The FCT164245T 16-bit 3.3V-to-5V translator is built using advanced
dual metal CMOS technology. This high-speed, low-power transceiver is
designed to interface between a 3.3V bus and a 5V bus in a mixed 3.3V/
5V supply environment. This enables system designers to interface TTL
compatible 3.3V components with 5V components. The direction and output
enable controls operate these devices as either two independent 8-bit
transceivers or one 16-bit transceiver. The A port interfaces with the 3.3V
bus; the B port interfaces with the 5V bus. The direction control (xDIR) pin
controls the direction of data flow. The output enable pin (xOE) overrides
the direction control and disables both ports. These control signals can be
driven from either 3.3V or 5V devices.
The FCT164245T is ideally suited for driving high-capacitance loads
and low-impedance backplanes. The output buffers are designed with
power off disable capability to allow "hot insertion" of boards when used as
backplane drivers. They also allow interface between a mixed supply
system and external 5 volt peripherals.
•
•
•
•
•
0.5 MICRON CMOS Technology
Bidirectional interface between 3.3V and 5V buses
Control inputs can be driven from either 3.3V or 5V circuits
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
VCC1 = 5V ±10%, VCC2 = 2.7V to 3.6V
High drive outputs (-32mA IOH, 64mA IOL) on 5V port
Power off disable on both ports permits “live insertion”
Typical VOLP (Output Ground Bounce) < 0.9V at VCC1 = 5V,
VCC2 = 3.3V, TA = 25°C
Available in SSOP and TSSOP packages
FUNCTIONAL BLOCK DIAGRAM
2 DIR
48
47
2A1
2
1A2
3.3V Port
1A4
2A3
43
41
8
1A6
2A4
2A5
2A6
2A7
2A8
12
1B8
16
2B3
17
2B4
19
2B5
20
2B6
22
2B7
23
2B8
32
30
29
27
1B7
37
2B2
33
1B6
38
11
1A8
1B5
40
9
1A7
14
1B3
1B4
2B1
35
1B2
44
6
1A5
13
2A2
5
2OE
36
1B1
46
3
1A3
25
1OE
3.3V Port
1A1
24
5V Port
1
5V Port
1 DIR
26
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
SEPTEMBER 2009
1
© 2009 Integrated Device Technology, Inc.
DSC-2555/9
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
Max
Unit
VTERM(2)
Terminal Voltage with Respect to GND
–0.5 to +7
V
1OE
VTERM(3)
Terminal Voltage with Respect to GND
–0.5 to Vcc1+0.5
V
TA
Operating Temperature
–40 to +85
°C
TBIAS
Temperature Under Bias
–55 to +125
°C
TSTG
Storage Temperature
–55 to +125
°C
PT
Power Dissipation
1
W
IOUT
DC Output Current
–60 to +120
mA
1DIR
1
48
1B1
2
47
1A1
1B2
3
46
1A2
GND
4
45
GND
1B3
5
44
1B4
6
43
1A4
VCC1
7
42
VCC2
1B5
8
41
1A5
1B6
9
40
1A6
GND
10
39
GND
1B7
11
38
1A7
1B8
12
37
1A8
1A3
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. All devices except Vcc2.
3. Power supply terminal Vcc2.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Parameter(1)
Symbol
Conditions
Typ.
Max.
Unit
CIN
Input Capacitance
VIN = 0V
3.5
6
pF
CI/O
I/O Capacitance
VOUT = 0V
3.5
8
pF
2B1
13
36
2B2
14
35
2A2
GND
15
34
GND
2B3
16
33
2A3
2B4
17
32
2A4
VCC1
18
31
VCC2
xDIR
Direction Control Input
2B5
19
30
2A5
xAx
Side A Inputs or 3-State Outputs (3.3V Port)
2B6
20
29
2A6
xBx
Side B Inputs or 3-State Outputs (5V Port)
GND
21
28
GND
2B7
22
27
2A7
2B8
23
26
2A8
2DIR
24
25
2OE
2A1
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
xOE
Description
Output Enable Input (Active LOW)
FUNCTION TABLE(1)
Inputs
xOE
SSOP/ TSSOP
TOP VIEW
xDIR
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
High Z State
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
POWER SUPPLY SEQUENCING
In the 74FCT164245T, the condition of VCC1 ≥ (VCC2 – 0.5V) must be
maintained at all times. For the range of VCC1 = (VCC2 – 0.5V) to VCC1 = (VCC2
+ 0.9V), both the A and B ports will remain in a High-Impedance state.
2
Outputs
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (A PORT, 3.3V)
Following Conditions Apply Unless Otherwise Specified:
VCC1 = 5V ±10%, VCC2 = 2.7V to 3.6V, Industrial: TA = –40°C to +85°C
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level (Input and I/O pins)
Guaranteed Logic HIGH Level
2
—
5.5
V
VIL
Input LOW Level (Input and I/O pins)
Guaranteed Logic LOW Level
–0.5
—
0.8
V
IIH
Input HIGH Current (Input pins)
VCC1 = Max.
VI = 5.5V
—
—
±5
Input HIGH Current (I/O pins)
VCC2 = Max.
VI = VCC2
—
—
±15
Input LOW Current (Input pins)
VI = GND
—
—
±5
Input LOW Current (I/O pins)
VI = GND
—
—
±15
IIL
VIK
Clamp Diode Voltage
VCC2 = Min., IIN = –18mA
VOH
Output HIGH Voltage
VCC1 = VCC2 = Min.
µA
—
–0.7
–1.2
V
VCC2 –0.2
—
—
V
IOH = –8mA
2.4
3
—
VCC1 = Min.
IOL = 0.1mA
—
—
0.2
VCC2 = Min.
IOL = 16mA
—
0.2
0.4
VIN = VIH or VIL
IOL = 24mA
—
0.3
0.55
VCC = 3V
IOL = 24mA
—
0.3
0.5
IOH = –0.1mA
VIN = VIH or VIL
VCC2 = 3V
VIN = VIH or VIL
VOL
Output LOW Voltage
V
VIN = VIH or VIL
IOFF
Input/Output Power Off Leakage
VCC1 = 0V, VCC2 = 0V, VIN or VO ≤ 4.5V
—
—
±100
µA
IOS
Short Circuit Current(4)
VCC1 = Max., VCC2 = Max., VO = GND(3)
–70
–105
–150
mA
IO
Output Drive Current
VCC1 = Max., VCC2 = Max., VO = 1.5V(3)
–40
–60
–90
mA
VH
Input Hysteresis
—
—
150
—
mV
ICC2
Quiescent Power Supply Current
VCC1 = Max.
—
0.35
2
mA
ICC2H
VCC2 = Max.
ICC2Z
VIN = GND or VCC2
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC1 = 5V, VCC2 = 3.3V, +25°C ambient.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
3
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (B PORT, 5V)
Following Conditions Apply Unless Otherwise Specified:
VCC1 = 5V ±10%, VCC2 = 2.7V to 3.6V, Industrial: TA = –40°C to +85°C
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level (Input and I/O pins)
Guaranteed Logic HIGH Level
2
—
5.5
V
VIL
Input LOW Level (Input and I/O pins)
Guaranteed Logic LOW Level
–0.5
—
0.8
V
IIH
Input HIGH Current (Input pins)
VCC1 = Max.
—
—
±5
Input HIGH Current (I/O pins)
VCC2 = Max.
—
—
±15
—
—
±5
—
—
±15
IIL
VI = VCC1
Input LOW Current (Input pins)
VI = GND
Input LOW Current (I/O pins)
µA
VIK
Clamp Diode Voltage
VCC1 = Min., IIN = –18mA
—
–0.7
–1.2
V
VOH
Output HIGH Voltage
VCC1 = Min.
IOH = –3mA
2.5
3.5
—
V
VCC2 = Min.
IOH = –15mA
2.4
3.5
—
VIN = VIH or VIL
IOH = –32mA(5)
2
3
—
VCC1 = Min.
IOL = 64mA
—
0.2
0.55
V
—
—
±100
µA
–80
–140
–225
mA
–50
–75
–180
mA
VOL
Output LOW Voltage
VCC2 = Min.
VIN = VIH or VIL
IOFF
Input/Output Power Off Leakage
(4)
VCC1 = 0V, VCC2 = 0V, VIN or VO ≤ 4.5V
IOS
Short Circuit Current
IO
Output Drive Current
VCC1 = Max., VCC2 = Max., VO = 2.5V(3)
VH
Input Hysteresis
—
—
150
—
mV
Quiescent Power Supply Current
VCC1 = Max.
VCC2 = Max.
VIN = GND or VCC2
—
0.08
1.5
mA
ICC2
ICC2H
ICC2Z
VCC1 = Max., VCC2 = Max., VO = GND
(3)
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC1 = 5V, VCC2 = 3.3V, +25°C ambient.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. Duration of the condition cannot exceed one second.
4
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Test Conditions(1)
Symbol
Parameter
ΔICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC1 = Max., VCC2 = Max.
VIN = VCC2 - 0.6V(3)
ICCD
Dynamic Power Supply
Current(4)
VCC1 = Max., VCC2 = Max.
Outputs Open
xOE = xDIR = GND
One Input Togging
50% Duty Cycle
Total Power Supply Current(6)
VCC1 = Max., VCC2 = Max.
Outputs Open
fI = 10MHz
50% Duty Cycle
IC
Min.
Typ.(2)
Max.
Unit
—
12
30
µA
VIN = VCC2
VIN = GND
—
75
120
µA/
MHz
VIN = VCC2 - 0.6V
VIN = GND
—
1.2
4.7
mA
VIN = VCC2 - 0.6V
VIN = GND
—
3.5
8.5(5)
xOE = xDIR = GND
One Bit Toggling
VCC1 = Max., VCC2 = Max.
Outputs Open
fI = 2.5MHz
50% Duty Cycle
xOE = xDIR = GND
Sixteen Bits Toggling
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC1 = 5V, VCC2 = 3.3V, +25°C ambient.
3. Per TTL driven input. All other inputs at VCC or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC1 + ICC2 + ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC1 = Quiescent Current (ICC1L, ICC1H and ICC1Z)
ICC2 = Quiescent Current (ICC2L, ICC2H and ICC2Z)
ΔICC = Power Supply Current for a TTL High Input
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
5
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1)
Condition(1)
Min.(2)
Max.
Unit
Propagation Delay
CL = 50pF
1.5
5
ns
A to B
RL = 500Ω
1.5
5
ns
1.5
6.5
ns
1.5
6
ns
1.5
6.5
ns
1.5
6
ns
1.5
6.5
ns
1.5
6
ns
1.5
6.5
ns
1.5
6
ns
Symbol
Parameter
tPLH
tPHL
tPLH
Propagation Delay
tPHL
B to A
tPZH
Output Enable Time
tPZL
xOE to B
tPHZ
Output Disable Time
tPLZ
xOE to B
tPZH
Output Enable Time
tPZL
xOE to A
tPHZ
Output Disable Time
tPLZ
xOE to A
tPZH
Output Enable Time
tPZL
xDIR to B(3)
tPHZ
Output Disable Time
tPLZ
xDIR to B(3)
tPZH
Output Enable Time
tPZL
xDIR to A(3)
tPHZ
Output Disable Time
tPLZ
xDIR to A(3)
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not tested.
6
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
SWITCH POSITION
6V
VCC
Open
GND
500Ω
VOUT
VIN
Pulse
Generator
D.U.T.
50pF
RT
Test
Switch
Open Drain
Disable Low
Enable Low
6V
Disable High
Enable High
GND
All Other Tests
Open
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
500Ω
CL
Test Circuits for All Outputs
DATA
INPUT
tH
tSU
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
tREM
tSU
3V
1.5V
0V
3V
1.5V
0V
LOW-HIGH-LOW
PULSE
tW
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
3V
1.5V
0V
tH
1.5V
1.5V
Pulse Width
Set-up, Hold, and Release Times
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
VOH
1.5V
VOL
DISABLE
3V
1.5V
0V
CONTROL
INPUT
tPZL
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
SWITCH
6V
tPLZ
3V
1.5V
tPZH
OUTPUT
NORMALLY
HIGH
Propagation Delay
SWITCH
GND
3V
0.3V
VOL
tPHZ
0.3V
1.5V
0V
VOH
0V
Enable and Disable Times
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
7
IDT74FCT164245T
FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
XX
Temp. Range
FCT
XX
XXXX
X
Family
Device Type
Package
PVG
PAG
Shrink Small Outline Package - Green
Thin Shrink Small Outline Package - Green
245T
16-Bit Bidirectional 3.3 Volt to 5 Volt Translator
164
Double-Density
74
40 C to +85 C
Datasheet Document History
09/28/09 Pg. 8
Updated the ordering information by removing the "IDT" notation and non RoHS part.
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8
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