FAIRCHILD FXL4245_10

FXL4245
Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
with Configurable Voltage Supplies, Signal Levels,
and 3-State Outputs
Features
Description
ƒ
Bi-Directional Interface between Two Levels from
1.1V to 3.6V
ƒ
ƒ
Fully Configurable, Inputs Track VCC Level
ƒ
Outputs Remain in 3-State until Active VCC Level is
Reached
The FXL4245 is a configurable dual-voltage-supply
translator designed for bi-directional voltage translation
of signals between two voltage levels. The device
allows translation between voltages as high as 3.6V to
as low as 1.1V. The A port tracks the VCCA level and the
B port tracks the VCCB level. Both ports are designed to
accept supply voltage levels from 1.1V to 3.6V. This
allows for bi-directional voltage translation over a variety
of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V.
ƒ
ƒ
ƒ
Outputs Switch to 3-State if Either VCC is at GND
ƒ
ƒ
Packaged in 24-Pin MLP
Non-Preferential Power-up; Either VCC May Be
Powered-up First
Power-Off Protection
Control Inputs (T/R, OE) Levels are Referenced To
VCCA Voltage
ESD Protection Exceeds:
- 4kV Human Body Model
(per JESD22-A114 & Mil Std 883e 3015.7)
- 8kV Human Body Model I/O to GND
(per JESD22-A114 & Mil Std 883e 3015.7)
- 1kV Charge Device Model (per ESD STM 5.3)
- 200V Machine Model
(per JESD22-A115 & ESD STM5.2)
The device remains in 3-state until both VCCs reach
active levels, allowing either VCC to be powered-up first.
The device also contains power-down control circuits
that place the device in 3-state if either VCC is removed.
The Transmit/Receive (T/R) input determines the
direction of data flow through the device. The OE input,
when HIGH, disables both the A and B ports by placing
them in a 3-state condition. The FXL4245 is designed
with the control pins (T/R and OE) supplied by VCCA.
Ordering Information
Part Number
Package
Packing Method
FXL4245MPX
24-Pin Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm
Tape and Reel
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
September 2010
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
Pin Configuration
Figure 1. Pin Configuration (Top Through View)
Pin Definitions
Pin #
Name
Description
1
VCCA
Side-A Power Supply
2
T/R
Transmit / Receive Input
3, 4, 5, 6, 7, 8, 9, 10
A0, A1, A2, A3, A4, A5, A6, A7
Side-A Inputs or 3-State Outputs
11, 12, 13
GND
14, 15, 16, 17, 18, 19, 20, 21
B7, B6, B5, B4, B3, B2, B1, B0
Ground
22
OE
Output Enable Input
23, 24
VCCB
Side-B Power Supply
Side-B Inputs or 3-State Outputs
Truth Table
Inputs
OE
Description
T/R
LOW Voltage Level
LOW Voltage Level
Bus B Data to Bus A
LOW Voltage Level
HIGH Voltage Level
Bus A Data to Bus B
HIGH Voltage Level
Don’t Care
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
3-State
www.fairchildsemi.com
2
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only.
Symbol
VCCA
VCCB
VI
VO
Parameter
DC Input Voltage
Output Voltage
(1)
DC Input Diode Current
IOK
DC Output Diode Current
ICC
TSTG
ESD
Min.
Max.
-0.5
4.6
-0.5
4.6
I/O Port A
-0.5
4.6
I/O Port B
-0.5
4.6
Control Inputs (T/R, OE)
-0.5
4.6
Output 3-State
-0.5
4.6
Output Active (An)
-0.5 to
VCCA
0.5
Output Active (Bn)
-0.5 to
VCCB
0.5
Supply Voltage
IIK
IOH/IOL
Conditions
VI < 0V
-50
VO < 0V
-50
VO > VCC
50
Unit
V
V
V
mA
mA
DC Output Source/Sink Current
±50
mA
DC VCC or Ground Current per Supply Pin
±100
mA
+150
°C
Storage Temperature Range
Electrostatic Discharge
Capability
-65
Human Body Model,
JESD22-A114, Mil Std 883e 3015.7
4
I/O to GND
8
Charged Device Model, JESD22-C101,STM 5.3
kV
1
Machine Model, JESD22-A115,STM 5.2
200
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
Absolute Maximum Ratings
V
Note:
1. I/O absolute maximum ratings must be observed.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameter
VCC
Power Supply
VI
Input Voltage
IOH/IOL
Output Current
Conditions
Min.
Max.
Unit
1.1
3.6
V
Port A
0
3.6
Port B
0
3.6
Control Inputs (T/R, OE)
0
VCCA
Operating VCCA or VCCB
VCC0
3.0V to 3.6V
±24
2.3V to 2.7V
±18
1.65V to 1.95V
±6
1.40V to 1.65V
ΔV/Δt
Operating Temperature, Free Air
Minimum Input Edge Rate
±0.5
-40
VCCA/B =1.1V to 3.6V
mA
±2
1.1V to 1.4V
TA
V
+85
°C
10
ns/V
Note:
2. All unused inputs must be held at VCCI or GND.
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
3
Symbol
Parameter
Conditions
Data Inputs An, Bn
VIH
HIGH Level Input
(3)
VCCI (V)
VCCO (V)
2.70 to 3.60
2.0
2.30 to 2.70
1.6
1.65 to 2.30
1.1 to 3.6
0.65 x VCCI
1.10 to 1.40
0.9 x VCCI
2.70 to 3.6
2.0
1.65 to 2.30
0.65 x VCCA
1.10 to 1.40
0.9 x VCCA
0.8
2.30 to 2.70
VIL
LOW Level Input(3)
0.7
1.1 to 3.6
0.35 x VCCI
1.40 to 1.65
0.35 x VCCI
1.10 to 1.40
0.10 x VCCI
2.70 to 3.60
0.8
2.30 to 2.70
Control Pins /OE, T/R
(Referenced to VCCA)
VOH
VOL
HIGH Level Output(4)
LOW Level Output(4)
V
0.65 x VCCA
1.40 to 1.65
1.65 to 2.30
Units
1.6
1.1 to 3.6
2.70 to 3.60
Data Inputs An, Bn
Max.
0.65 x VCCI
1.40 to 1.65
2.30 to 2.70
Control Pins OE, T/R
(Referenced to VCCA)
Min.
1.65 to 2.30
V
0.7
1.1 to 3.6
0.35 x VCCI
1.40 to 1.65
0.35 x VCCI
1.10 to 1.40
0.10 x VCCI
IOH = -100µA
1.1 to 3.6
1.1 to 3.6
VCC0 - 0.2
IOH = -12mA
2.7
2.7
2.2
IOH = -18mA
3.0
3.0
2.4
IOH = -24mA
3.0
3.0
2.2
IOH = -6mA
2.3
2.3
2.0
IOH = -12mA
2.3
2.3
1.8
IOH = -18mA
2.3
2.3
1.7
IOH = -6mA
1.65
1.65
1.25
IOH = -2mA
1.4
1.4
1.05
0.75 x VCC0
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
Electrical Characteristics
V
IOH = -0.5mA
1.1
1.1
IOL = 100µA
1.1 to 3.6
1.1 to 3.6
0.2
IOL = 12mA
2.7
2.7
0.4
IOL = 18mA
3.0
3.0
0.4
IOL = 24mA
3.0
3.0
0.55
IOL = 12mA
2.3
2.3
0.4
V
IOL = 18mA
2.3
2.3
0.6
IOL = 6mA
1.65
1.65
0.3
IOL = 2mA
1.4
1.4
0.35
IOL = 0.5mA
1.1
1.1
0.3 x VCC0
Continued on the following page…
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
4
Symbol
Parameter
IL
Input Leakage
Current, Control Pins
IOFF
Power Off Leakage
Current
IOZ
3-State Output
Leakage
(0 ≤ VO ≤ 3.6V,
VI=VIH or VIL)
ICCA/B
Quiescent Supply
Current(6)
ICCB
ΔICCA/B
VI=VCCA or GND
VCCO (V)
1.1 to 3.6
Max.
Units
3.6
±1.0
µA
0
3.6
±10
3.6
0
±10
An, Bn, /OE=VIH
3.6
3.6
±10
0
3.6
±10
Bn, /OE= Don’t Care(5)
(5)
An, /OE= Don’t Care
VI=VCCA or GND; IO=0
3.6
0
±10
1.1 to 3.6
1.1 to 3.6
20
1.1 to 3.6
1.1 to 3.6
20
0
1.1 to 3.6
-10
1.1 to 3.6
0
10
1.1 to 3.6
0
-10
0
1.1 to 3.6
10
3.6
3.6
500
VIH=3.0
Notes:
3. VCCI = the VCC associated with the data input under test.
4. VCCO = the VCC associated with the output under test.
5. Don’t care = any valid logic level.
6. Reflects current per supply, VCCA or VCCB.
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
Min.
An, VI or VO=0V to 3.6V
VI=VCCB or GND; IO=0
Increase in ICC per
Input; Other Inputs at
VCC or GND
VCCI (V)
Bn, VI or VO=0V to 3.6V
VI=VCCI or GND; IO=0
ICCZ
ICCA
Conditions
µA
µA
µA
µA
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
Electrical Characteristics
www.fairchildsemi.com
5
VCCA=3.0V to 3.6V
TA= -40 to +85°C
Symbol
tPLH, tPHL
tPZH, tPZL
tPHZ, tPLZ
Parameter
VCCB=3.0V
to 3.6V
VCCB=2.3V
to 2.7V
VCCB=1.65V
to 1.95V
VCCB=1.4V
to 1.6V
VCCB=1.1V
to 1.3V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Propagation
Delay A to B
0.2
3.5
0.3
3.9
0.5
5.4
0.6
6.8
1.4
22.0
Propagation
Delay B to A
0.2
3.5
0.2
3.8
0.3
4.0
0.5
4.3
0.8
13.0
Output Enable
/OE to B
0.5
4.0
0.7
4.4
1.0
5.9
1.0
6.4
1.5
17.0
Output Enable
/OE to A
0.5
4.0
0.5
4.0
0.5
4.0
0.5
4.0
0.5
4.0
Output Disable
/OE to B
0.2
3.8
0.2
4.0
0.7
4.8
1.5
6.2
2.0
17.0
Output Disable
/OE to A
0.2
Units
ns
ns
ns
3.7
0.2
3.7
0.2
3.7
0.2
3.7
0.2
3.7
VCCA=2.3V to 2.7V
TA= -40 to +85°C
Symbol
tPLH, tPHL
tPZH, tPZL
tPHZ, tPLZ
Parameter
VCCB=3.0V
to 3.6V
VCCB=2.3V
to 2.7V
VCCB=1.65V
to 1.95V
VCCB=1.4V
to 1.6V
VCCB=1.1V
to 1.3V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Propagation
Delay A to B
0.2
3.8
0.4
4.2
0.5
5.6
0.8
6.9
1.4
22.0
Propagation
Delay B to A
0.3
3.9
0.4
4.2
0.5
4.5
0.5
4.8
1.0
7.0
Output Enable
/OE to B
0.6
4.2
0.8
4.6
1.0
6.0
1.0
6.8
1.5
17.0
Output Enable
/OE to A
0.6
4.5
0.6
4.5
0.6
4.5
0.6
4.5
0.6
4.5
Output Disable
/OE to B
0.2
4.1
0.2
4.3
0.7
4.8
1.5
6.7
2.0
17.0
Output Disable
/OE to A
0.2
4.0
0.2
4.0
0.2
4.0
0.2
4.0
0.2
4.0
Units
ns
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
AC Electrical Characteristics
ns
ns
VCCA=1.65V to 1.95V
TA= -40 to +85°C
Symbol
tPLH, tPHL
tPZH, tPZL
tPHZ, tPLZ
Parameter
VCCB=3.0V
to 3.6V
VCCB=2.3V
to 2.7V
VCCB=1.65V
to 1.95V
VCCB=1.4V
to 1.6V
VCCB=1.1V
to 1.3V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Propagation
Delay A to B
0.3
4.0
0.5
4.5
0.8
5.7
0.9
7.1
1.5
22.0
Propagation
Delay B to A
0.5
5.4
0.5
5.6
0.8
5.7
1.0
6.0
1.2
8.0
Output Enable
/OE to B
0.6
5.2
0.8
5.4
1.2
6.9
1.2
7.2
1.5
18.0
Output Enable
/OE to A
1.0
6.7
1.0
6.7
1.0
6.7
1.0
6.7
1.0
6.7
Output Disable
/OE to B
0.2
5.1
0.2
5.2
0.8
5.2
1.5
7.0
2.0
17.0
Output Disable
/OE to A
0.5
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
Units
ns
ns
ns
5.0
0.5
5.0
0.5
5.0
0.5
5.0
0.5
5.0
www.fairchildsemi.com
6
VCCA=1.4V to 1.6V
TA= -40 to +85°C
Symbol
tPLH, tPHL
tPZH, tPZL
tPHZ, tPLZ
VCCB=3.0V
to 3.6V
Parameter
VCCB=2.3V
to 2.7V
VCCB=1.65V
to 1.95V
VCCB=1.4V
to 1.6V
VCCB=1.1V
to 1.3V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Propagation
Delay A to B
0.5
4.3
0.5
4.8
1.0
6.0
1.0
7.3
1.5
22.0
Propagation
Delay B to A
0.6
6.8
0.8
6.9
0.9
7.1
1.0
7.3
1.3
9.5
Output Enable
/OE to B
1.1
7.5
1.1
7.6
1.3
7.7
1.4
7.9
2.0
20.0
Output Enable
/OE to A
1.0
7.5
1.0
7.5
1.0
7.5
1.0
7.5
1.0
7.5
Output Disable
/OE to B
0.4
6.1
0.4
6.2
0.9
6.2
1.5
7.5
2.0
18.0
Output Disable
/OE to A
1.0
6.0
1.0
6.0
1.0
6.0
1.0
6.0
1.0
6.0
Units
ns
ns
ns
VCCA=1.1V to 1.3V
TA= -40 to +85°C
Symbol
tPLH, tPHL
tPZH, tPZL
tPHZ, tPLZ
VCCB=3.0V
to 3.6V
Parameter
VCCB=2.3V
to 2.7V
VCCB=1.65V
to 1.95V
VCCB=1.4V
to 1.6V
VCCB=1.1V
to 1.3V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Propagation
Delay A to B
0.8
13.0
1.0
7.0
1.2
8.0
1.3
9.5
2.0
24.0
Propagation
Delay B to A
1.4
22.0
1.4
22.0
1.5
22.0
1.5
22.0
2.0
24.0
Output Enable
/OE to B
1.0
12.0
1.0
9.0
2.0
10.0
2.0
11.0
2.0
24.0
Output Enable
/OE to A
2.0
22.0
2.0
22.0
2.0
22.0
2.0
22.0
2.0
22.0
Output Disable
/OE to B
1.0
15.0
0.7
7.0
1.0
8.0
2.0
10.0
2.0
20.0
Output Disable
/OE to A
2.0
15.0
2.0
12.0
2.0
12.0
2.0
12.0
2.0
12.0
Units
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
AC Electrical Characteristics (Continued)
ns
ns
ns
Capacitance
Symbol
Parameter
Conditions
TA=+25°C
Units
Typical
CIN
Input Capacitance
VCCA=VCCB=0V, VI=0V or VCCA/B
4
pF
CI/O
Input/Output Capacitance
VCCA=VCCB=3.3V, VI=0V or VCCA/B
5
pF
CPD
Power Dissipation Capacitance
VCCA=VCCB=3.3V, VI=0V or VCC, f=10MHz
20
pF
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
7
Figure 2. AC Test Circuit
Test
Switch
tPLH,tPHL
Open
VCC0 • 2 at VCCO=3.3 ± 0.3V, 2.5V ± 0.2V,
1.8V ± 0.15V, 1.5V ± 0.1V, 1.2V ± 0.1V
GND
tPLZ,tPZL
tPHZ,tPZH
Table 1.
AC Load Table
VCC0
CL
RL
Rtr1
1.2V ± 0.1V
15pF
2kΩ
2kΩ
1.5V ± 0.1V
15pF
2kΩ
2kΩ
1.8V ± 0.15V
30pF
500kΩ
500kΩ
2.5V ± 0.2V
30pF
500kΩ
500kΩ
3.3V ± 0.3V
30pF
500kΩ
500kΩ
Note:
7. Input tR=tF=2.0ns, 10% to 90%
Figure 3. Waveform for Inverting and NonInverting Functions
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
AC Loadings and Waveforms
Note:
8. Input tR=tF=2.0ns, 10% to 90%
Figure 4. 3-State Output Low Enable and Disable for
Low Voltage Logic
Note:
9. Input tR=tF=2.0ns, 10% to 90%
Figure 5. 3-State Output High Enable and Disable for Low Voltage Logic
VCC
Symbol
3.3V ± 0.3V
2.5V ± 0.2V
1.8V ± 0.15V
1.5V ± 0.1V
1.2V ± 0.1V
VMI
VCCI/2
VCCI/2
VCCI/2
VCCI/2
VCCI/2
VMO
VCCO/2
VCCO/2
VCCO/2
VCCO/2
VCCO/2
VX
VOH - 0.3V
VOH – 0.15V
VOH – 0.15V
VOH – 0.1V
VOH – 0.1V
VY
VOL + 0.3V
VOL + 0.15V
VOL + 0.15V
VOL + 0.1V
VOL + 0.1V
Note:
10. For VMI VCCO=VCCA for control pins T/R and OE or VCCA/2.
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
8
Power-Up/Power-Down Sequencing
The recommended power-up sequence is:
FXL translators offer an advantage in that either VCC
may be powered up first. This benefit derives from the
chip design. When either VCC is at 0V, outputs are in a
High-impedance state. The control inputs (T/R and OE)
are designed to track the VCCA supply. A pull-up resistor
tying OE to VCCA should be used to ensure that bus
contention, excessive currents, or oscillations do not
occur during power-up/power-down. The size of the
pull-up resistor is based upon the current-sinking
capability of the OE driver.
1.
Apply power to either VCC.
2.
Apply power to the T/R input (logic HIGH for A-to-B
operation; logic LOW for B-to-A operation) and to
the respective data inputs (A port or B port). This
may occur at the same time as step 1.
3.
Apply power to the other VCC.
4.
Drive the OE input LOW to enable the device.
The recommended power-down sequence is:
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
1.
Drive OE input HIGH to disable the device.
2.
Remove power from either VCC.
3.
Remove power from the other VCC.
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
Functional Description
www.fairchildsemi.com
9
FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
Physical Dimensions
Figure 6. 24-Pin Molded Leadless Package (MLP), JEDEC MO-220, 3.5 x 4.5mm
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify
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the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:
http://www.fairchildsemi.com/packaging/MLP24B_TNR.pdf.
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
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FXL4245 — Low-Voltage, Dual-Supply, 8-Bit, Signal Translator
© 2004 Fairchild Semiconductor Corporation
FXL4245 • Rev. 1.0.3
www.fairchildsemi.com
11