DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 16
Technical content
Features
Bi-Directional Interface between Any Two Levels: 1.65V to 5.5V No Direction Control Needed Internal 10K Pull-Up Resistors System GPIO Resources Not Required when OE Tied to VCCA I2C-Bus® Isolation A/B Port VOL = 175mV (Typical), VIL = 150mV, IOL = 6mA Open-Drain Inputs / Outputs Works in Push Pull Environment Accommodates Standard-Mode and Fast-Mode I2C-Bus Devices Supports I2C Clock Stretching & Multi-Master Fully Configurable: Inputs and Outputs Track VCC Non-Preferential Power-Up; Either VCC Can Power-Up First Outputs Switch to 3-State if Either VCC is at GND Tolerant Output Enable: 5V Packaged in 8-Terminal Leadless MicroPak™ (1.6mm x 1.6mm) and Ultrathin MLP (1.2mm x 1.4mm) ESD Protection Exceeds: - B Port: 8kV HBM ESD (vs. GND & vs. VCCB) - All Pins: 4kV HBM ESD (per JESD22-A114) - 2kV CDM (per JESD22-C101)
Description
The FXMAR2102 is a high-performance configurable dual-voltage-supply translator for bi-directional voltage translation over a wide range of input and output voltages levels. The FXMAR2102 also works in a push- pull environment. It is intended for use as a voltage translator between I 2C-Bus® compliant masters and slaves. Internal 10K Ω pull-up resistors are provided. The device is designed so the A port tracks the V CCA level and the B port tracks the VCCB level. This allows for bi-directional A/B-port voltage translation between any two levels from 1.65V to 5.5V. VCCA can equal VCCB from 1.65V to 5.5V. Either V CC 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 port may sense an input signal and transfer it as an output signal to the other port.
Ordering Information
-40 to +85°C BU 8-Lead MicroPak™, 1.6mm Wide 5000 Units on Tape and Reel FXMAR2102UMX 8-Lead Ultrathin MLP, 1.2mm x 1.4mm
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
8 V CCB B-Side Power Supply
- If the OE pin is driven LOW, the FXMAR2102 is disabled and the A 0, A1, B0, and B1 pins (including dynamic drivers)
are forced into 3-state and all four 10K internal pull-up resisters are decoupled from their respective VCC.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMAR2102 • Rev. 1.0.0 4 FXMAR2102 — Dual-Supply, 2-Bit Voltage Translator / Isolator for I2C Applications 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 st ressing 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. Units 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 VCCA + 0.5V Bn Outputs Active –0.5 VCCB + 0.5V IIK DC Input Diode Current At V IN < 0V –50 mA IOK DC Output Diode Current At VO < 0V –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 400KHz 0.129 mW TSTG Storage Temperature Range –65 +150 °C ESD Electrostatic Discharge Capability Human Body Model, B-Port Pins 8 kV Human Body Model, All Pins (JESD22-A114) 4 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 th e conditions for actual device operation. Recommended operating conditions are specified to en sure optimal performance to the datash eet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Max. Units VCCA, VCCB Power Supply Operating 1.65 5.50 V VIN Input Voltage (3) A-Port 0 5.5 V B-Port 0 5.5 Control Input (OE) 0 V CCA JA Thermal Resistance 8-Lead MicroPak™ 279 C°/W 8-Lead Ultrathin MLP 302 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. VCCI is the VCC associated with the input side.
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 VCC.
- Remove power from the 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
logic LOW of 0.4V to the master. competition, given a 0.4V VIL. Figure 6. Device Comparison
forever; however. This condition shuts down the I2C bus. condition from slave #2 to slave #1 and as the master. Figure 7. Bus Isolation
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMAR2102 • Rev. 1.0.0 9 FXMAR2102 — Dual-Supply, 2-Bit Voltage Translator / Isolator for I2C Applications TA = –40°C to +85°C. Symbol Parameter Conditions V CCA (V) V CCB (V) Min. Typ. Max. Units VIHA High Level Input Voltage A Data Inputs An 1.65–5.50 1.65–5.50 VCCA – 0.4 V VCCA VIHB High Level Input Voltage B Data Inputs Bn 1.65–5.50 1.65–5.50 VCCB – 0.4 V VILA Low Level Input Voltage A V VCCA VILB Low Level Input VOL Low Level Output Voltage VIL = 0.15V 0.4 V IOL = 6mA IL Input Leakage Current Control Input OE, IOFF Power-Off Leakage Current An VIN or VO = 0V to 5.5V 0 5.50 ±2.0 µA Bn VIN or VO = 0V to 5.5V 5.50 0 ±2.0 IOZ 3-State Output Leakage(7) An, Bn VO = 0V to 5.5V, OE = VIL 5.50 5.50 ±2.0 µA An VO = 0V to 5.5V, OE = Don’t Care 5.50 0 ±2.0 Bn VO = 0V to 5.5V, OE = Don’t Care 0 5.50 ±2.0 ICCA/B Quiescent Supply Current(8,9) VIN = VCCI or Floating, 5.0 µA ICCZ Quiescent Supply Current(8) VIN = VCCI or GND, IO = 0, OE = VIL 1.65–5.50 1.65–5.50 5.0 µA ICCA Quiescent Supply Current(7) VIN = 5.5V 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(7) VIN = 5.5V 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 RPU Resistor Pull-up Value VCCA & VCCB Sides 1.65–5.50 1.65–5.50 10 Notes: 6. This table contains the output vo ltage for static conditions. Dynamic drive specifications are given in Dynamic Output Electrical Characteristics. 7. “Don’t Care” indicates any valid logic level. 8. V CCI is the VCC associated with the input side. 9. Reflects current per supply, V CCA or VCCB.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMAR2102 • Rev. 1.0.0 10 FXMAR2102 — Dual-Supply, 2-Bit Voltage Translator / Isolator for I2C Applications Dynamic Output Electrical Characteristics Output Rise / Fall Time(10) Output load: CL = 50pF, RPU = NC, push / pull driver, and TA = -40°C to +85°C. Symbol Parameter VCCO (11) Typ. Typ. Typ. Typ. trise Output Rise Time; A Port, B Port (12) 3 4 5 7 ns tfall Output Fall Time; A Port, B Port (13) 1 1 1 1 ns Notes: 10. Output rise and fall times guaranteed by design si mulation and characterization; not production tested. 11. V CCO is the VCC associated with the output side. 12. See Figure 12. 13. See Figure 13. Maximum Data Rate(14) Output load: CL = 50pF, RPU = NC, push / pull driver, and TA = -40°C to +85°C. VCCA Direction VCCB Minimums 4.5V to 5.5V A to B 50 50 40 30 MHz B to A 50 50 40 40 3.0V to 3.6V A to B 50 50 40 19 MHz B to A 50 50 40 40 2.3V to 2.7V A to B 40 40 30 19 MHz B to A 40 40 30 30 1.65V to 1.95V A to B 40 40 30 19 MHz B to A 30 30 19 19 Note: 14. F-toggle guaranteed by design simulation; not production tested.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMAR2102 • Rev. 1.0.0 11 FXMAR2102 — Dual-Supply, 2-Bit Voltage Translator / Isolator for I2C Applications AC Characteristics(15) Output Load: CL = 50pF, RPU = NC, push / pull driver, and TA = -40°C to +85°C. Symbol Parameter VCCB VCCA = 4.5 to 5.5V 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 tskew A Port, B Port (16) VCCA = 3.0 to 3.6V 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 2.7V 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 1.95V 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 14 6 14 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 Notes: 15. AC characteristics are guaranteed by design and characterization. 16. Skew is the variation of propagatio n 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; not production tested.
Figure 8. AC Test Circuit Table 1. Propagation Delay Table (17)
- For t PZL and tPLZ testing, an external 2.2K pull-up resister to VCCO is required in order to force the I/O pins high
while OE is Low because when OE is low, the internal 10K RPUs are decoupled from their respective VCC’s. Table 2. AC Load Table
Figure 16. 8-Lead MicroPak™, 1.6mm Wide warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/. http://www.fairchildsemi.com/products/logic/pdf/micropak_tr.pdf.
- 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 17. 8-Lead Ultrathin MLP, 1.2mm x 1.4mm warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/.
0.10 C A B
B. DIMENSIONS ARE IN MILLIMETERS. E. DRAWING FILENAME: MKT-UMLP08Arev2.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FXMAR2102 • Rev. 1.0.0 16 FXMAR2102 — Dual-Supply, 2-Bit Voltage Translator / Isolator for I2C Applications