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Technical content
Features
Bi-Directional Interface between Any Two Levels: 1.65 V to 5.5 V Direction Control not Needed System GPIO Resources Not Required when OE Tied to VCCA I2C 400 pF Buffer / Repeater I2C Bus Isolation A/B Port VOL = 175 mV (Typical), VIL = 150 mV, IOL = 6 mA Open-Drain Inputs / Outputs Accommodates Standard-Mode and Fast-Mode I2C-Bus Devices Supports I2C Clock Stretching & Multi-Master Fully Configurable: Inputs and Outputs Track VCC Control Input (/OE) Referenced to VCCA. Non-Preferential Power-Up; Either VCC May Be Powered-Up First Outputs Switch to 3-State if Either VCC is at GND Tolerant Output Enable: 5 V Packaged in 8-Terminal Leadless MicroPak™ (1.6 mm x 1.6 mm) and Ultrathin MLP (1.2 mm x 1.4 mm) ESD Protection Exceeds: - 8 kV HBM ESD (per JESD22-A114) - 2 kV CDM (per JESD22-C101)
Description
The FXMA2102 is a high-performance configurable dual-voltage-supply translator for bi-directional voltage translation over a wide range of input and output voltages levels. Intended for use as a voltage translator between I 2C- Bus® complaint masters and slaves. The device is designed so t hat the A port tracks the VCCA level and the B port tracks the V CCB level. This allows for bi-directional A/B port voltage translation between any two levels from 1.65 V to 5.5 V. V CCA can equal V CCB from 1.65V to 5.5V. The OE pin is referenced to VCCA. Either VCC can be powered-up first. Internal power-down control circuits place the device in 3-state if either VCC is removed. The two ports of the devic e have automatic direction sense capability. Either por t may sense an input signal and transfer it as an output signal to the other port.
Ordering Information
-40 to +85°C XN 8-Lead MicroPak™, 1.6 mm Wide 5000 Units on Tape and Reel FXMA2102UMX 8-Lead Ultrathin MLP, 1.2 mm x 1.4 mm
Figure 1. Block Diagram, 1 of 2 Channels
Figure 2. MicroPak™ (Top-Through View ) Figure 3. UMLP (Top-Through View)
1 V CCA A-Side Power Supply
4 GND Ground
5 OE Output Enable Input (Referenced to V CCA )
8 V CCB B-Side Power Supply
- If the OE pin is driven LOW, the FXMA2102 is disabled and the A0, A1, B0, and B1 pins (including dynamic
drivers) are forced into 3-state.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA2102 • Rev. 1.0.5 4 FXMA2102 — Dual-Supply, 2-Bit Voltage Translator / Buffer / Repeater / Isolator for I2C Applications Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The devic e may not function or be operable above the recommended operating c onditions 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 Min. Max. Unit VCCA, VCCB Supply Voltage –0.5 7.0 V VIN DC Input Voltage A Port –0.5 7.0 B Port –0.5 7.0 Control Input (OE) –0.5 7.0 VO Output Voltage (2) An Outputs 3-State –0.5 7.0 V Bn Outputs 3-State –0.5 7.0 An Outputs Active –0.5 V CCA + 0.5V Bn Outputs Active –0.5 V CCB + 0.5V IIK DC Input Diode Current At V IN < 0 V –50 mA IOK DC Output Diode Current At VO < 0 V –50 mA At VO > VCC +50 IOH / IOL DC Output Source/Sink Current –50 +50 mA ICC DC V CC or Ground Current per Supply Pin ±100 mA PD Power Dissipation At 400 KHz 0.129 mW TSTG Storage Temperature Range –65 +150 °C ESD Electrostatic Discharge Capability Human Body Model, JESD22-A114 8 kV Charged Device Mode, JESD22-C101 2 Note: 2. I O absolute maximum rating must be observed. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device oper ation. Recommended operating conditions are specified to ens ure optimal performance to the datasheet specificat ions. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Max. Unit VCCA, VCCB Power Supply Operating 1.65 5.50 V VIN Input Voltage A Port 0 5.5 V B Port 0 5.5 Control Input (OE) 0 V CCA ΘJA Thermal Resistance 8-Lead MicroPak™ 279.0 C°/W 8-Lead Ultrathin MLP 301.5 TA Free Air Operating Temperature –40 +85 °C Note: 3. All unused inputs and I/O pins must be held at V CCI or GND.
capability of the device driving the OE pin.
- Apply power to the first VCC.
- Apply power to the second VCC.
- Drive the OE input HIGH to enable the device.
- Drive OE input LOW to disable the device.
- Remove power from either V
- Remove power from other VCC.
- Alternatively, the OE pin can be hardwired to V CCA
either VCC can be powered up or down first. Figure 4. Application Circuit
sourcing capability to driv e a 400 pF capacitive bus. maximum edge rate of 300 ns. logic LOW of 0.4 V to the master. Figure 6. V OL vs. IOL
forever; however, this condition shuts down the I 2C bus. between the master and slave #1. Figure 7. Bus Isolation
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA2102 • Rev. 1.0.5 9 FXMA2102 — Dual-Supply, 2-Bit Voltage Translator / Buffer / Repeater / Isolator for I2C Applications TA = –40°C to +85°C. Symbol Parameter Condition V CCA (V) V CCB (V) Min. Max. Unit VIHA High Level Input Voltage A V VIHB High Level Input VILA Low Level Input Voltage A V VCCA VILB Low Level Input VOL Low Level Output Voltage VIL = 0.15 V IOL = 6 mA IL Input Leakage Current Control Input OE, IOFF Power Off Leakage Current An V IN or VO = 0 V to 5.5 V 0 5.50 ±2.0 µA Bn V IN or VO = 0 V to 5.5 V 5.50 0 ±2.0 IOZ 3-State Output Leakage(6) An, Bn VO = 0 V to 5.5 V, OE = VIL 5.50 5.50 ±2.0 µA An VO = 0 V to 5.5 V, OE = Don’t Care 5.50 0 ±2.0 Bn VO = 0 V to 5.5 V, OE = Don’t Care 0 5.50 ±2.0 ICCA/B Quiescent Supply Current (7,8) ICCZ Quiescent Supply Current(7) VIN = VCCI or GND, IO = 0, ICCA Quiescent Supply Current(6) VIN = 5.5 V or GND, IO = 0, OE = Don’t Care, Bn to An 0 1.65–5.50 –2.0 µA 1.65–5.50 0 2.0 ICCB Quiescent Supply Current(6) VIN = 5.5 V or GND, IO = 0, OE = Don’t Care, An to Bn 1.65–5.50 0 –2.0 µA 0 1.65–5.50 2.0 Notes: 5. This table contains the output voltage for static conditions. Dynamic drive specifications are given in Dynamic Output Electrical Characteristics. 6. “Don’t Care” indicates any valid logic level. 7. V CCI is the VCC associated with the input side. 8. Reflects current per supply, V CCA or VCCB.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA2102 • Rev. 1.0.5 10 FXMA2102 — Dual-Supply, 2-Bit Voltage Translator / Buffer / Repeater / Isolator for I2C Applications Dynamic Output Electrical Characteristics Output Rise / Fall Time Output load: CL = 50 pF, RPU = 2.2 kΩ, push / pull driver, and TA = -40°C to +85°C. Symbol Parameter VCCO (10) Typ. Typ. Typ. Typ. trise Output Rise Time; A Port, B Port(11) 3 4 5 7 ns tfall Output Fall Time; A Port, B Port (12) 1 1 1 1 ns Notes: 9. Output rise and fall times guaranteed by design si mulation and characterization; not production tested. 10. V CCO is the VCC associated with the output side. 11. See Figure 12. 12. See Figure 13. Maximum Data Rate(13) Output load: CL = 50 pF, RPU = 2.2 kΩ, push / pull driver, and TA = -40°C to +85°C. VCCA Direction VCCB Min. Min. Min. Min. 4.5 V to 5.5 V A to B 50 50 40 30 MHz B to A 50 50 40 40 3.0 V to 3.6 V A to B 50 50 40 19 MHz B to A 50 50 40 40 2.3 V to 2.7 V A to B 40 40 30 19 MHz B to A 40 40 30 30 1.65 V to 1.95 V A to B 40 40 30 19 MHz B to A 30 30 19 19 Note: 13. F-toggle guaranteed by design si mulation; not production tested.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA2102 • Rev. 1.0.5 11 FXMA2102 — Dual-Supply, 2-Bit Voltage Translator / Buffer / Repeater / Isolator for I2C Applications AC Characteristics Output Load: CL = 50 pF, RPU = 2.2 kΩ, and TA = -40°C to +85°C. Symbol Parameter VCCB VCCA = 4.5 to 5.5 V tPLH A to B 1 3 1 3 1 3 1 3 ns B to A 1 3 2 4 3 5 4 7 tPHL A to B 2 4 3 5 4 6 5 7 ns B to A 2 4 2 5 2 6 5 7 tPZL OE to A 4 5 6 10 5 9 7 15 ns OE to B 3 5 4 7 5 8 10 15 tPLZ OE to A 65 100 65 105 65 105 65 105 ns OE to B 5 9 6 10 7 12 9 16 VCCA = 3.0 to 3.6 V tPLZ OE to A 100 115 100 115 100 115 100 115 ns OE to B 5 10 4 8 5 10 9 15 VCCA = 2.3 to 2.7 V tPLZ OE to A 100 115 100 115 100 115 100 115 ns OE to B 65 110 65 110 65 115 12 25 VCCA = 1.65 to 1.95 V tPHL A to B 5 8 3 7 3 7 3 7 ns B to A 4 8 3 7 3 7 3 7 tPZL OE to A 11 15 11 14 14 28 14 23 ns OE to B 6 14 6 12 6 12 9 16 tPLZ OE to A 75 115 75 115 75 115 75 115 ns OE to B 75 115 75 115 75 115 75 115 Note: 14. Skew is the variation of propagat ion delay between output signals and applies only to output signals on the same port (An or Bn) and switching with the same polarity (LOW-to-HIGH or HIGH-to-LOW) (see Figure 15). Skew is guaranteed, but not tested.
Figure 8. AC Test Circuit Table 1. Propagation Delay Table Table 2. AC Load Table
- DRAWING CONFORMS TO ASME Y.14M-1994
- DIMENSIONS ARE IN MILLIMETERS
- PACKAGE CONFORMS TO JEDEC MO-255 VARIATION UAAD
- PIN 1 FLAG, END OF PACKAGE OFFSET
0.10 CAB
0.55 MAX
- DRAWING FILE NAME: MKT-MAC08AREV4
Figure 16. 8-Lead MicroPak™, 1.6 mm Wide warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/products/logic/pdf/micropak_tr.pdf.
B. DIMENSIONS ARE IN MILLIMETERS. E. DRAWING FILENAME: MKT-UMLP08Arev3. Figure 17. 8-Lead Ultrat hin MLP, 1.2 mm x 1.4 mm warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/. http://www.fairchildsemi.com/dwg/UM/UMLP08A.pdf.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMA2102 • Rev. 1.0.5 16 FXMA2102 — Dual-Supply, 2-Bit Voltage Translator / Buffer / Repeater / Isolator for I2C Applications