FAIRCHILD FXMA108BQX

FXMA108
Dual-Supply, 8-Bit Signal Translator with Configurable
Voltage Supplies and Signals Levels, 3-State Outputs
and Auto Direction Sensing
Features
Description
ƒ
Bi-Directional Interface between Two Levels from
1.65V to 5.5V
ƒ
ƒ
Fully Configurable: Inputs and Outputs Track VCC
ƒ
Outputs Remain in 3-State Until Active VCC Level is
Reached
The FXMA108 is a configurable dual-voltage supply
translator designed for both uni-directional and bidirectional voltage translation between two logic levels.
The device allows translation between voltages as high
as 5.5V to as low as 1.65V. The A port tracks the VCCA
level and the B port tracks the VCCB level. This allows for
bi-directional voltage translation over a variety of
voltage levels: 1.8V, 2.5V, 3.3V, and 5.0V.
ƒ
ƒ
ƒ
Outputs Switch to 3-State if Either VCC is at GND
ƒ
ƒ
ƒ
ƒ
Control Input (/OE) is Referenced to VCCA Voltage
ƒ
ESD Protection Exceeds:
Non-Preferential Power-Up; Either VCC may be
Powered-Up First
Power-Off Protection
Bus Hold On Data Inputs Eliminates the Need for
Pull-Up Resistors
Packaged in 20-Terminal DQFN
Direction Control Not Needed
80Mbps Throughput when Translating between
2.5V and 5.0V
The device remains in 3-state until both VCCs reach
active levels, allowing either VCC to be powered-up first.
Internal power-down control circuits place the device in
3-state if either VCC is removed.
The /OE input, when high, disables both the A and B
Side by placing them in a 3-state condition. The /OE
input is supplied by VCCA.
The FXMA108 supports bi-directional translation without
the need for a direction control pin. The two sides of the
device have auto-direction-sense capability. Either port
may sense an input signal and transfer it as an output
signal to the other port.
−
8kV Human Body Model (B Port I/O to GND)
(JESD22-A114 & Mil Std 883e 3015.7)
Applications
−
5kV Human Body Model (A Port I/O to GND)
(JESD22-A114 & Mil Std 883e 3015.7)
ƒ
−
2kV Charged Device Model (ESD STM 5.3)
(JESD22-C101)
Cell Phones, PDA, Digital Camera, Portable GPS,
and Storage
Ordering Information
Part Number
Operating
Temperature Range
FXMA108BQX
-40 to 85°C
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
Package
20-Lead, DQFN, JEDEC MO-241, 2.5x4.5mm
Packing
Method
3000 Units
Tape and Reel
www.fairchildsemi.com
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
July 2010
Figure 1.
Block Diagram
Functional Table
Control
Outputs
/OE
LOW Logic Level
Normal Operation
HIGH Logic Level
3-State
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Functional Diagram
www.fairchildsemi.com
2
VCCA VCCB
20
1
A0 2
19
B0
A1
3
18
B1
A2
4
17
B2
A3
5
16
B3
A4
6
15
B4
A5 7
14
B5
A6 8
13
B6
A7 9
12
B7
10
11
GND /OE
Figure 2.
Pin Configuration (Top Through View)
Pin Definitions
Pin #
Name
Description
1
VCCA
2
A0
A-Side Inputs or 3-State Outputs
3
A1
A-Side Inputs or 3-State Outputs
4
A2
A-Side Inputs or 3-State Outputs
5
A3
A-Side Inputs or 3-State Outputs
6
A4
A-Side Inputs or 3-State Outputs
7
A5
A-Side Inputs or 3-State Outputs
A-Side Power Supply
8
A6
A-Side Inputs or 3-State Outputs
9
A7
A-Side Inputs or 3-State Outputs
10
GND
Ground
11
/OE
Output Enable Input
12
B7
B-Side Inputs or 3-State Outputs
13
B6
B-Side Inputs or 3-State Outputs
14
B5
B-Side Inputs or 3-State Outputs
15
B4
B-Side Inputs or 3-State Outputs
16
B3
B-Side Inputs or 3-State Outputs
17
B2
B-Side Inputs or 3-State Outputs
18
B1
B-Side Inputs or 3-State Outputs
19
B0
B-Side Inputs or 3-State Outputs
20
VCCB
DAP
NC
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Pin Configuration
B-Side Power Supply
No Connect
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
www.fairchildsemi.com
3
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
Parameter
VCC
Supply Voltage
VIN
DC Input Voltage
VO
Output Voltage
IIK
DC Input Diode Current
IOK
DC Output Diode Current
IOH/IOL
ICC
TSTG
ESD
Conditions
Min.
Max.
VCCA
-0.5
7.0
VCCB
-0.5
7.0
I/O Side A and B
-0.5
7.0
Control Input (/OE)
-0.5
7.0
Output 3-State
-0.5
7.0
Output Active (An)
(1)
-0.5
VCCA +0.5
Output Active (Bn)
(1)
-0.5
VCCB +0.5
VIN < 0V
-50
VO < 0V
-50
VO > VCC
+50
DC Output Source/Sink Current
Electrostatic
Discharge
Capability
V
V
V
mA
mA
-50
+50
mA
±100
mA
-65
+150
°C
DC VCC or Ground Current (Per Supply Pin)
Storage Temperature Range
Unit
Human Body Model, JESD22A114, and Mil Std 883e 3015.7
B Port I/O to GND
8000
Human Body Model, JESD22A114 and Mil Std 883e 3015.7
A Port I/O to GND
5000
Charged Device Model, JESD22-C101
per ESD STM 5.3
V
2000
Note:
1. IO 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
VIN
Input Voltage
TA
Operating Temperature, Free Air
dt/dV
Input Edge Rate
Conditions
Operating VCCA or VCCB
Side A and B
Control Input (/OE)
VCCA/B=1.65 to 5.5V
Typ.
Max.
Unit
1.65
5.50
V
0
5.5
V
0
VCCA
V
-40
+85
°C
10
ns/V
Note:
2. All unused inputs and input/outputs must be held at VCCI or GND. VCCI is the VCC associated with the input side.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Absolute Maximum Ratings
www.fairchildsemi.com
4
The recommended power-down sequence is:
Fairchild 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 input (/OE) is
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 or power-down. The size of the
pull-up resistor is based upon the current-sinking
capability of the device driving the /OE pin.
1.
2.
3.
Pull-Up/Pull-Down Resistors
Do not use pull-up or pull-down resistors. This device
has bus-hold circuits: pull-up or pull-down resistors are
not recommended because they interfere with the
output state. The current through these resistors may
exceed the hold drive, II(HOLD) and/or II(OD) bus-hold
currents. The bus-hold feature eliminates the need for
extra resistors.
The recommended power-up sequence is:
1.
2.
3.
Apply power to the first VCC.
Apply power to the second VCC.
Drive the /OE input LOW to enable the device.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
Drive /OE input HIGH to disable the device.
Remove power from either VCC.
Remove power from the other VCC.
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Power-Up/Power-Down Sequence
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5
TA=-40°C to +85°C.
Symbol
Parameter
VIHA
High Level Input
Voltage
Conditions
Data Inputs An
Control Pin /OE
VCCA (V)
VCCB (V)
1.65 - 5.50 1.65 - 5.50
Data Inputs Bn
1.65 - 5.50 1.65 - 5.50
VILA
Data Inputs An
Control Pin /OE
1.65 - 5.50 1.65 - 5.50
VILB
VOHA
VOHB
VOLA
VOLB
II(HOLD)
II(ODH)
II(ODL)
High Level
(3)
Output Voltage
Low Level Output
(3)
Voltage
Bushold Input
Minimum Drive
Current
Bushold Input
Overdrive High
(4)
Current
Bushold Input
Overdrive Low
(5)
Current
Max.
Units
0.65 x VCCA
V
VIHB
Low Level Input
Voltage
Min.
0.65 x VCCB
0.35 x VCCA
V
Data Inputs Bn
1.65 - 5.50 1.65 - 5.50
0.35 x VCCB
IOH=-20µA
1.65 - 5.50 1.65 - 5.50
VCCA - 0.4
IOH=-20µA
1.65 - 5.50 1.65 - 5.50
VCCB - 0.4
IOL=20µA
1.65 - 5.50 1.65 - 5.50
0.4
IOL=20µA
1.65 - 5.50 1.65 - 5.50
0.4
V
V
VIN=1.60V
4.5
4.5
140
VIN=2.90V
4.5
4.5
-140
VIN=1.05V
3.0
3.0
75
VIN=1.95V
3.0
3.0
-75
VIN=0.80V
2.3
2.3
45
VIN=1.50V
2.3
2.3
-45
VIN=0.57V
1.65
1.65
25
VIN=1.07V
1.65
1.65
-25
5.5
5.5
750
3.6
3.6
450
2.7
2.7
300
1.95
1.95
200
5.5
5.5
-750
3.6
3.6
-450
2.7
2.7
-300
1.95
1.95
-200
Data Inputs An, Bn
Data Inputs An, Bn
μA
μA
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
DC Electrical Characteristics
Continued on the following page…
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
www.fairchildsemi.com
6
TA=-40°C to +85°C.
Symbol
II
IOFF
IOZ
ICCA/B
ICCZ
ICCA
ICCB
Parameter
Conditions
VCCA (V)
VCCB (V)
Min.
Max.
Units
µA
Input Leakage
Current
Control Inputs /OE
VIN=VCCA or GND
1.65 - 5.50
5.5
±1
Power Off
Leakage Current
An, VO=0V to 5.5V
0
5.5
±2
Bn, VO=0V to 5.5V
5.5
0
±2
An, Bn
VO=0V or 5.5V,
/OE VIH
5.5
5.5
±5
An, VO=0V or 5.5V,
/OE=GND
5.5
0
±5
Bn, VO=0V or 5.5V,
/OE=GND
0
5.5
±5
VIN=VCCI or GND, IO=0
/OE=GND
1.65 - 5.50
1.65 - 5.50
10
µA
VIN=VCCI or GND, IO=0
/OE=VIH
1.65 - 5.50
1.65 - 5.50
10
µA
VIN=VCCB or GND, IO=0
B-to-A Direction
/OE=GND
0
1.65 - 5.50
-10
VIN=VCCA or GND, IO=0
A-to-B
1.65 - 5.50
0
10
VIN=VCCA or GND, IO=0
A-to-B Direction
/OE=GND
1.65 - 5.50
0
-10
VIN=VCCB or GND, IO=0
B-to-A
0
3-State Output
Leakage
Quiescent Supply
( 6,7)
Current
Quiescent Supply
( 6,7)
Current
Quiescent Supply
Current
µA
µA
µA
1.65 - 5.50
Notes:
3. This is the output voltage for static conditions.
4. An external driver must source at least the specified current to switch LOW-to-HIGH.
5. An external driver must source at least the specified current to switch HIGH-to-LOW.
6. VCCI is the VCC associated with the input side.
7. Reflects current per supply, VCCA or VCCB.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
µA
10
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
DC Electrical Characteristics (Continued)
www.fairchildsemi.com
7
A Port (An)
Output Load: CL=15pF, RL ≥ 1MΩ.
TA=-40°C to +85°C
Symbol
Parameter
VCCA=4.5V to
5.5V
VCCA=3.0V to
3.6V
VCCA=2.3V to
2.7V
VCCA=1.65V to
1.95V
Max.
Max.
Max.
Max.
Units
trise
Output Rise
(9)
Time A Side
2.5
3.0
3.5
4.0
ns
tfall
Output Fall Time
(10)
A Side
2.5
3.0
3.5
4.0
ns
Units
B Port (Bn)
Output Load: CL=15pF, RL ≥ 1MΩ.
TA=-40°C to +85°C
Symbol
Parameter
VCCB=4.5V to
5.5V
VCCB=3.0V to
3.6V
VCCB=2.3V to
2.7V
VCCB=1.65V to
1.95V
Max.
Max.
Max.
Max.
trise
Output Rise
9)
Time B Side
3.5
3.5
3.5
4.0
ns
tfall
Output Fall Time
(10)
B Side
3.5
3.5
3.5
4.0
ns
Notes:
8. Dynamic output characteristics are guaranteed, but not tested in production.
9. See Figure 8.
10. See Figure 9.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Dynamic Output Electrical Characteristics(8)
www.fairchildsemi.com
8
VCCA=4.5V to 5.5V, Output Load (see Table 2)
TA=-40°C to +85°C
Symbol
VCCB=4.5V to
5.5V
VCCB=3.0V to
3.6V
VCCB=2.3V to
2.7V
VCCB=1.65V to
1.95V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
A-to-B Side
1.5
5.0
1.75
6.0
2.0
6.5
2.6
10.5
B-to-A Side
1.5
5.0
1.75
6.0
2.0
6.5
2.6
10.5
Parameter
Units
tPLH ,tPHL
tPZL, tPZH
tskew
ns
/OE-to-A,
/OE-to-B
A Port, B Side
(11)
1.7
1.7
1.7
1.7
µs
0.5
0.5
0.5
0.5
ns
Note:
11. Skew is the variation of propagation delay between output signals and applies only to output signals on the
same Side (An or Bn) and switching with the same polarity (LOW-to-HIGH or HIGH-to-LOW). Skew is
guaranteed, but not tested in production (see Figure 11 ).
VCCA=3.0V to 3.6V, Output Load (see Table 2)
TA=-40°C to +85°C
Symbol
VCCB=4.5V to
5.5V
VCCB=3.0V to
3.6V
VCCB=2.3V to
2.7V
VCCB=1.65V to
1.95V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
A-to-B Side
2.0
5.5
2.2
6.5
2.4
7.5
2.6
11.0
B-to-A Side
2.0
5.5
2.2
6.5
2.4
7.5
2.6
11.0
Parameter
Units
tPLH, tPHL
ns
tPZL, tPZH
/OE-to-A,
/OE-to-B
1.7
1.7
1.7
1.7
µs
tskew
A Side,
(12)
B Side
0.7
0.7
0.7
0.7
ns
Note:
12. Skew is the variation of propagation delay between output signals and applies only to output signals on the
same Side (An or Bn) and switching with the same polarity (LOW-to-HIGH or HIGH-to-LOW). Skew is
guaranteed, but not tested in production (see Figure 11).
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
AC Characteristics
www.fairchildsemi.com
9
VCCA=2.3V to 2.7V, Output Load (see Table 2)
TA=-40°C to +85°C
Symbol
VCCB=4.5V to
5.5V
VCCB=3.0V to
3.6V
VCCB=2.3V to
2.7V
VCCB=1.65V to
1.95V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
A-to-B Side
2.0
6.5
2.2
7.7
2.4
8.5
2.6
11.0
B-to-A Side
2.0
7.0
2.2
7.5
2.4
8.5
2.6
12.0
Parameter
Units
tPLH, tPHL
ns
tPZL, tPZH
/OE- to-A
/OE-to-B
1.7
1.7
1.7
1.7
µs
tskew
A Side,
(13)
B Side
0.7
0.7
0.7
0.7
ns
Note:
13. Skew is the variation of propagation delay between output signals and applies only to output signals on the
same Side (An or Bn) and switching with the same polarity (LOW-to-HIGH or HIGH-to-LOW). Skew is
guaranteed but not tested in production (see Figure 11).
VCCA=1.65V to 1.95V, Output Load (see Table 2)
TA=-40°C to +85°C
Symbol
VCCB=4.5V to
5.5V
VCCB=3.0V to
3.6V
VCCB=2.3V to
2.7V
VCCB=1.65V to
1.95V
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
A-to-B Side
2.0
10.0
2.2
11.0
2.4
12.0
2.6
14.0
B-to-A Side
2.0
10.0
2.2
10.5
2.4
11.0
2.6
14.0
Parameter
Units
tPLH, tPHL
ns
tPZL, tPZH
/OE-to-A
/OE to B
1.7
1.7
1.7
1.7
µs
tskew
A Side,
(14)
B Side
1.2
1.2
1.2
1.2
ns
Note:
14. Skew is the variation of propagation delay between output signals and applies only to output signals on the
same Side (An or Bn) and switching with the same polarity (LOW-to-HIGH or HIGH-to-LOW). Skew is
guaranteed, but not tested in production (see Figure 11).
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
AC Characteristics (Continued)
www.fairchildsemi.com
10
For output load, see Table 2.
TA=-40°C to +85°C
VCCA
VCCB=4.5V to
5.5V
VCCB=3.0V to
3.6V
VCCB=2.3V to
2.7V
VCCB=1.65V
to 1.95V
Min.
Min.
Min.
Min.
A-to-B
100
100
80
60
B-to-A
100
100
80
80
A-to-B
100
100
80
60
B-to-A
100
100
80
80
A-to-B
80
80
60
40
B-to-A
80
80
60
60
A-to-B
80
80
60
40
B-to-A
60
60
40
40
Direction
Units
VCCA=4.5V to 5.5V
VCCA=3.0V to 3.6V
Mbps
VCCA=2.3V to 2.7V
VCCA=1.65V to 1.95V
Notes:
15. Maximum data rate is guaranteed, but not tested in production.
16. Maximum data rate is specified in megabits per second with all outputs switching, (see Figure 10). It is
equivalent to two times the F-toggle frequency, specified in megahertz. For example, 100Mbps is equivalent to
50MHz.
Capacitance
TA=+25°C.
Symbol
Parameter
CIN
Input Capacitance, Control Pin /(OE)
CI/O
Input / Output Capacitance
CPD
Power Dissipation Capacitance
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
Conditions
An
Bn
VCCA=VCCB=GND
VCCA=VCCB=5.0V, /OE=VCCA
VCCA=VCCB=5.0V, VIN=0V or VCC, f=10MHz
Typical
Unit
3
pF
4
5
28
pF
pF
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Maximum Data Rate(15, 16)
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11
The FXMA108 I/O architecture benefits the end user,
beyond level translation, in the following three ways:
Bus Hold Minimum Drive Current
Specifies the minimum amount of current the bus hold
driver can source/sink. The bus hold minimum drive
current (IHOLD) is VCC dependent and guaranteed in the
DC Electrical tables. The intent is to maintain a valid
output state in a static mode, but that can be overridden
when an input data transition occurs.
Auto Direction without an external direction pin.
Drive Capacitive Loads. Automatically shifts to a
higher current drive mode only during “Dynamic Mode”
or HL / LH transitions.
Lower Power Consumption. Automatically shifts to
low-power mode during “Static Mode” (no transitions),
lowering power consumption.
Bus Hold Input Overdrive Drive Current
Specifies the minimum amount of current required (by
an external device) to overdrive the bus hold in the
event of a direction change. The bus hold overdrive
(IODH, IODL) is VCC dependent and guaranteed in the DC
Electrical tables.
The FXMA108 does not require a direction pin. Instead,
the I/O architecture detects input transitions on both
side and automatically transfers the data to the
corresponding output. For example, for a given channel,
if both A and B side are at a static LOW, the direction
has been established as A Æ B, and a LH transition
occurs on the B port; the FXMA108 internal I/O
architecture automatically changes direction from A Æ
B to B Æ A.
Dynamic Output Current
The strength of the output driver during LH / HL
transitions is captured in Figure 3 (IOLH, IOHD). The plot
depicts the FXMA108 typical dynamic output current
with a lumped capacitance of 4pF.
During HL / LH transitions, or “Dynamic Mode,” a strong
(typically 30mA) output driver drives the output channel
in parallel with a weak (typically 100µA) output driver.
After a typical delay of approximately 10ns – 50ns, the
strong driver is turned off, leaving the weak driver
enabled for holding the logic state of the channel. This
weak driver is called the “bus hold.” “Static Mode” is
when only the bus hold drives the channel. The bus
hold can be over ridden (typically 500µA) in the event of
a direction change. The strong driver allows the
FXMA108 to quickly charge and discharge capacitive
transmission lines during dynamic mode. Static mode
conserves power, where ICC is typically < 5µA.
Figure 3.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
Because the strong output driver is turned on only
during LH / HL transitions, the actual drive current is
difficult to measure directly. Approximate the drive
current with the following formula:
IOHD ≈ (CI / O) ×
0.6 *VCCO
ΔVOUT
= (CI / O) ×
tRISE
Δt
(1)
where
CI/O = the typical lumped capacitance and
VCCO is the supply voltage of the output driver.
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
I/O Architecture Benefit
Typical Dynamic Output Current
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12
VCC
TEST
SIGNAL
DUT
C1
Figure 4.
Table 1.
Table 2.
R1
AC Test Circuit
Test Circuit Parameters
Test
Input Signal
Output Enable Control
tPLH, tPHL
Data Pulses
0V
tPZL
0V
HIGH-to-LOW Switch
tPZH
VCCI
HIGH-to-LOW Switch
VCCO
C1
R1
1.8V ± 0.15V
15pF
1MΩ
2.5V ± 0.2V
15pF
1MΩ
3.3 ± 0.3V
15pF
1MΩ
5.0 ± 0.5V
15pF
1MΩ
AC Load Table
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
AC Tests and Waveforms
www.fairchildsemi.com
13
Figure 5.
Waveform for Inverting and Non-Inverting Functions
Notes:
17. Input tR = tF = 2.0ns, 10% to 90%.
18. Input tR = tF = 2.5ns, 10% to 90%, at VIN = 3.0V to 5.5V only.
Figure 6.
3-State Output Low Enable Time for Low Voltage Logic
Notes:
19. Input tR = tF = 2.0ns, 10% to 90%.
20. Input tR = tF = 2.5ns, 10% to 90%, at VIN = 3.0V to 5.5V only.
Figure 7.
3-State Output High Enable Time for Low Voltage Logic
Notes:
21. Input tR = tF = 2.0ns, 10% to 90%.
22. Input tR = tF = 2.5ns, 10% to 90%, at VIN = 3.0V to 5.5V only.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
AC Tests and Waveforms
www.fairchildsemi.com
14
Symbol
VMI
VCC
(23)
VCCI/2
VMO
VCCO/2
VX
0.9 x VCCO
VY
0.1 x VCCO
Note:
23. VCCI = VCCA for control pin /OE or VMI = (VCCA /2).
Figure 8.
Active Output Rise Time
Figure 10.
Figure 11.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
Figure 9.
Maximum Data Rate
Active Output Fall Time
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
AC Tests and Waveforms (Continued)
Output Skew Time
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15
Figure 12.
20-Lead, DQFN, JEDEC MO-241, 2.5x4.5mm
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
or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically
the warranty therein, which covers Fairchild products.
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
Physical Dimensions
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
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16
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
17
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© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1
FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
18
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© 2010 Fairchild Semiconductor Corporation
FXMA108 • Rev. 1.0.1