FXMA108 FAIRCHILD | Alldatasheet
Document overview
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Technical content
Features
Bi-Directional Interface between Two Levels from 1.65V to 5.5V Fully Configurable: Inputs and Outputs Track VCC Non-Preferential Power-Up; Either VCC may be Powered-Up First Outputs Remain in 3-State Until Active VCC Level is Reached Outputs Switch to 3-State if Either VCC is at GND Power-Off Protection Bus Hold On Data Inputs Eliminates the Need for Pull-Up Resistors Control Input (/OE) is Referenced to VCCA Voltage Packaged in 20-Terminal DQFN Direction Control Not Needed 80Mbps Throughput when Translating between 2.5V and 5.0V ESD Protection Exceeds: − 8kV Human Body Model (B Port I/O to GND) (JESD22-A114 & Mil Std 883e 3015.7) − 5kV Human Body Model (A Port I/O to GND) (JESD22-A114 & Mil Std 883e 3015.7) − 2kV Charged Device Model (ESD STM 5.3) (JESD22-C101)
Description
The FXMA108 is a configurable dual-voltage supply translator designed for both uni-directional and bi- directional 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 V CCA level and the B port tracks the VCCB level. This allows for bi-directional voltage translation over a variety of The device remains in 3-state until both V CCs reach active levels, allowing either V CC to be powered-up first. Internal power-down control circuits place the device in 3-state if either V CC 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 V CCA. 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.
Applications
Cell Phones, PDA, Digital Camera, Portable GPS, and Storage
Ordering Information
Temperature Range Package Packing Method FXMA108BQX -40 to 85°C 20-Lead, DQFN, JEDEC MO-241, 2.5x4.5mm 3000 Units Tape and Reel
Figure 1. Block Diagram
Figure 2. Pin Configur ation (Top Through View)
1 V CCA A-Side Power Supply
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
8 A6 A-Side Inputs or 3-State Outputs
9 A7 A-Side Inputs or 3-State Outputs
10 GND Ground
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 V CCB B-Side Power Supply
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 4 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels Absolute Maximum Ratings 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 Conditions Min. Max. Unit VCC Supply Voltage VCCA -0.5 7.0 V VCCB -0.5 7.0 VIN DC Input Voltage I/O Side A and B -0.5 7.0 V Control Input (/OE) -0.5 7.0 VO Output Voltage Output 3-State -0.5 7.0 V Output Active (An)(1) -0.5 V CCA +0.5 Output Active (Bn)(1) -0.5 V CCB +0.5 IIK DC Input Diode Current VIN < 0V -50 mA IOK DC Output Diode Current VO < 0V -50 mA VO > VCC +50 IOH/IOL DC Output Source/Sin k Current -50 +50 mA ICC DC V CC or Ground Current (Per Supply Pin) ±100 mA TSTG Storage Temperature Range -65 +150 °C ESD Electrostatic Discharge Capability Human Body Model, JESD22- A114, and Mil Std 883e 3015.7 B Port I/O to GND 8000 V Human Body Model, JESD22- A114 and Mil Std 883e 3015.7 A Port I/O to GND 5000 Charged Device Model, JESD22-C101 per ESD STM 5.3 2000 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 ens ure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Conditions Typ. Max. Unit VCC Power Supply Operating VCCA or VCCB 1.65 5.50 V VIN Input Voltage Side A and B 0 5.5 V Control Input (/OE) 0 V CCA V TA Operating Temperature, Free Air -40 +85 °C dt/dV Input Edge Rate V CCA/B=1.65 to 5.5V 10 ns/V Note: 2. All unused inputs and input/outputs must be held at V CCI or GND. VCCI is the VCC associated with the input side.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 5 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels Power-Up/Power-Down Sequence Fairchild translators offer an advantage in that either VCC may be powered up first. This benefit derives from the chip design. When either V CC is at 0V, outputs are in a high-impedance state. The control input (/OE) is designed to track the V CCA supply. A pull-up resistor tying /OE to V CCA 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. The recommended power-up sequence is: 1. Apply power to the first V CC. 2. Apply power to the second V CC. 3. Drive the /OE input LOW to enable the device. The recommended power-down sequence is: 1. Drive /OE input HIGH to disable the device. 2. Remove power from either V CC. 3. Remove power from the other V CC. 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, I I(HOLD) and/or II(OD) bus-hold currents. The bus-hold feature eliminates the need for extra resistors.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 6 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels TA=-40°C to +85°C. Symbol Parameter Conditions V CCA (V) V CCB (V) Min. Max. Units VIHA High Level Input Voltage Data Inputs An V VILA Low Level Input Voltage Data Inputs An V VOHA High Level Output Voltage(3) V VOLA Low Level Output Voltage(3) V II(HOLD) Bushold Input Minimum Drive Current V IN=1.60V 4.5 4.5 140 μA 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 II(ODH) Bushold Input Overdrive High Current (4) Data Inputs An, Bn 5.5 5.5 750 μA 3.6 3.6 450 2.7 2.7 300 1.95 1.95 200 II(ODL) Bushold Input Overdrive Low Current (5) Data Inputs An, Bn 5.5 5.5 -750 3.6 3.6 -450 2.7 2.7 -300 1.95 1.95 -200 Continued on the following page…
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 7 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels TA=-40°C to +85°C. Symbol Parameter Conditions V CCA (V) V CCB (V) Min. Max. Units II Input Leakage Current Control Inputs /OE VIN=VCCA or GND 1.65 - 5.50 5.5 ±1 µA IOFF Power Off Leakage Current An, VO=0V to 5.5V 0 5.5 ±2 µA Bn, VO=0V to 5.5V 5.5 0 ±2 IOZ 3-State Output Leakage An, Bn VO=0V or 5.5V, /OE VIH 5.5 5.5 ±5 µA An, VO=0V or 5.5V, /OE=GND 5.5 0 ±5 Bn, VO=0V or 5.5V, /OE=GND 0 5.5 ±5 ICCA/B Quiescent Supply Current( 6,7) VIN=VCCI or GND, IO=0 /OE=GND 1.65 - 5.50 1.65 - 5.50 10 µA ICCZ VIN=VCCI or GND, IO=0 /OE=VIH 1.65 - 5.50 1.65 - 5.50 10 µA ICCA Quiescent Supply Current( 6,7) VIN=VCCB or GND, IO=0 B-to-A Direction /OE=GND 0 1.65 - 5.50 -10 µA VIN=VCCA or GND, IO=0 A-to-B 1.65 - 5.50 0 10 ICCB Quiescent Supply Current VIN=VCCA or GND, IO=0 A-to-B Direction /OE=GND 1.65 - 5.50 0 -10 µA VIN=VCCB or GND, IO=0 B-to-A 0 1.65 - 5.50 10 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. V CCI is the VCC associated with the input side. 7. Reflects current per supply, V CCA or VCCB.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 8 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels Dynamic Output Electrical Characteristics(8) A Port (An) Output Load: CL=15pF, RL ≥ 1MΩ. Symbol Parameter TA=-40°C to +85°C Units 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. trise Output Rise Time A Side(9) 2.5 3.0 3.5 4.0 ns tfall Output Fall Time A Side (10) 2.5 3.0 3.5 4.0 ns B Port (Bn) Output Load: CL=15pF, RL ≥ 1MΩ. Symbol Parameter TA=-40°C to +85°C Units 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 Time B Side9) 3.5 3.5 3.5 4.0 ns tfall Output Fall Time B Side (10) 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 www.fairchildsemi.com FXMA108 • Rev. 1.0.1 9 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels AC Characteristics VCCA=4.5V to 5.5V, Output Load (see Table 2) Symbol Parameter TA=-40°C to +85°C Units VCCB=4.5V to 5.5V VCCB=3.0V to 3.6V VCCB=2.3V to 2.7V VCCB=1.65V to 1.95V tPLH ,tPHL ns tPZL, tPZH /OE-to-A, /OE-to-B 1.7 1.7 1.7 1.7 µs tskew A Port, B Side (11) 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 ). V CCA=3.0V to 3.6V, Output Load (see Table 2) Symbol Parameter TA=-40°C to +85°C Units VCCB=4.5V to 5.5V VCCB=3.0V to 3.6V VCCB=2.3V to 2.7V VCCB=1.65V to 1.95V tPLH, tPHL ns tPZL, tPZH /OE-to-A, /OE-to-B 1.7 1.7 1.7 1.7 µs tskew A Side, B Side(12) 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 www.fairchildsemi.com FXMA108 • Rev. 1.0.1 10 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels AC Characteristics (Continued) VCCA=2.3V to 2.7V, Output Load (see Table 2) Symbol Parameter TA=-40°C to +85°C Units VCCB=4.5V to 5.5V VCCB=3.0V to 3.6V VCCB=2.3V to 2.7V VCCB=1.65V to 1.95V tPLH, tPHL ns tPZL, tPZH /OE- to-A /OE-to-B 1.7 1.7 1.7 1.7 µs tskew A Side, B Side (13) 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). V CCA=1.65V to 1.95V, Output Load (see Table 2) Symbol Parameter TA=-40°C to +85°C Units VCCB=4.5V to 5.5V VCCB=3.0V to 3.6V VCCB=2.3V to 2.7V VCCB=1.65V to 1.95V tPLH, tPHL ns tPZL, tPZH /OE-to-A /OE to B 1.7 1.7 1.7 1.7 µs tskew A Side, B Side (14) 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 www.fairchildsemi.com FXMA108 • Rev. 1.0.1 11 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels Maximum Data Rate(15, 16) For output load, see Table 2. VCCA Direction TA=-40°C to +85°C Units 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. VCCA=4.5V to 5.5V A-to-B 100 100 80 60 Mbps B-to-A 100 100 80 80 VCCA=3.0V to 3.6V A-to-B 100 100 80 60 B-to-A 100 100 80 80 VCCA=2.3V to 2.7V A-to-B 80 80 60 40 B-to-A 80 80 60 60 VCCA=1.65V to 1.95V A-to-B 80 80 60 40 B-to-A 60 60 40 40 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, specifi ed in megahertz. For example, 100Mbps is equivalent to 50MHz. Capacitance TA=+25°C. Symbol Parameter Conditions Typical Unit CIN Input Capacitance, Control Pin /(OE) V CCA=VCCB=GND 3 pF CI/O Input / Output Capacitance An VCCA=VCCB=5.0V, /OE=VCCA pF Bn 5 CPD Power Dissipation Capacitance V CCA=VCCB=5.0V, VIN=0V or VCC, f=10MHz 28 pF
Auto Direction without an external direction pin. in parallel with a weak (typically 100µA) output driver. when an input data transition occurs. with a lumped capacitance of 4pF. VCCO is the supply voltage of the output driver. Figure 3. Typical Dynamic Output Current
Figure 4. AC Test Circuit Table 1. Test Circuit Parameters Table 2. AC Load Table
Figure 12. 20-Lead, DQFN, JEDEC MO-241, 2.5x4.5mm the warranty therein, which covers Fairchild products.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 17 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA108 • Rev. 1.0.1 18 FXMA108 — Dual-Supply, 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels