ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Product Features Product Description • Operation Voltage: 1.65V ≤ VCCA ≤ 3.6V 2.3V ≤ VCCB ≤ 5.5V VCCA ≤ VCCB Pericom Semiconductor’s STX series of logic circuits are produced using the Company’s advanced CMOS technology, achiev ing industry leading performance. • High Speed: tpd = 5ns typical into 30pF @ 3V VCC Pericom Semiconductor’s PI74STX2G4245, a 2-bit noninverting buffer/transceiver, contains two separate supply rails:A port (VCCA), set to operate from 1.8V to 3.3V; B port (VCCB), set to operate from 2.5V to 5V. The A1 to B1 translation is configured as an unidirectional buffer; the translation between A2 and B2 is bidirectional and its direction is controlled by the DIR pin. • Power down high-impedance inputs and outputs • High output drive: ±12mA at 3V VCCA/VCCB ±24mA at 5V VCCB • Industrial operation at –40°C to +85°C • Packaging: - 8-pin MSOP (U) - 12-pin TDFN (ZE) Product Pin Configuration(MSOP) Logic Block Diagram DIR A2 4 3 6 A1 2 1 8 A1 2 7 B1 A2 3 6 B2 DIR 4 5 GND VCCB (2.5V to 5V) B2 7 Product Pin Configuration(TDFN) B1 Function Table Input (1.8V to 3.3V)VCCA Output DIR DATA L B2 A2 H A2 B2 X A1 B1 1 12 (1.8V to 3.3V ) VCCA 2 11 VCCB (2.5V to 5V) A1 3 10 B1 A2 4 9 B2 DIR 5 8 GND 6 7 Pin Description Pin Name Description DIR Direction Control A1 Data Input B1 Data Output A2, B2 Data Input/Output VCCA, VCCB Power Supply 1 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Maximum Ratings (Absolute maximum ratings over operating free-air temperature range from VCCB at 2.5V & VCCA at 1.2V, unless otherwise noted) Supply voltage range: VCCA.............................. –0.5V to +6V VCCB .............................. –0.5V to +6V Input Voltage Range, VI: Input A1(1) ................... –0.5V to +6V I/O A2(1,2) ........–0.5V to VCCA+0.5V I/O B2(1,2) ........ –0.5V to VCCB+0.5V Output Voltage Range, VO Output B1(1, 2) .. –0.5V to VCCB +0.5V DC Input Diode Current, IIK (VO <0) .......................... –50mA DC Output Diode Current, IOK (VO <0) ....................... –50mA DC Output Current, (IOUT) ........................................... ±50mA DC VCC or GND Current (ICC/IGND).......................... ±100mA Storage temperature range, TSTG .................... –65°C to 150°C Junction Lead Temperature (IOS) ....................................260°C Power Dissipation: MSOP ........................................... 200mW Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 1. The input negative voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. This value is limited to 6V. Recommended Operating Conditions for A Port ( VCCA)(1) Parameter VCCA Description Test Conditions Supply Voltage Min. Max. 1.65 3.6 VCCA = 1.65V to 1.95V 0.7 x VCCA VCCA = 2.3V to 3.6V 0.7 x VCCA VIH High-level input voltage VIL Low-level input voltage VIA Input Voltage 0 VCCA VOA Output Votage 0 VCCA IOH IOL High-level Output Current Low-level Output Current ∆t/∆V Input transition rise or fall rate TA Operation free-air temperature VCCA = 1.65 to 1.95V 0.3 x VCCA VCCA = 2.3V to 3.6V 0.3 x VCCA VCCA = 1.65 V to 1.95V -4 VCCA = 2.3V to 2.7V -8 VCCA = 3V to 3.6V -12 VCCA = 1.65V to 1.95V 4 VCCA = 2.3V to 2.7V 8 VCCA = 3V to 3.6V 12 VCCA = 1.65V to 1.95V 20 VCCA = 2.3V to 3.6V 10 -40 Units V mA ns/V 85 ºC Note: 1. To ensure proper device operation, all unused inputs must be held at VCCA or GND. 2 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Recommended Operating Conditions for B Port ( VCCB)(1) Paramaters VCCB Description Test Conditions Supply Voltage Min. Max. 2.3 5.5 VIH High-level input voltage VCCB = 2.3V to 5.5V VIL Low-level input voltage VCCB = 2.3V to 5.5V VIB Input Voltage 0 VCCB VOB Output Votage 0 VCCB IOH IOL High-level Output Current Low-level Output Current ∆t/∆V Input transition rise or fall rate TA Operation free-air temperature Units 0.7 x VCCB 0.3 x VCCB V VCCB = 2.3 V to 2.7V -8 VCCB = 3V to 3.6V -12 VCCB = 4.5V to 5.5V -24 VCCB = 2.3V to 2.7V 8 VCCB = 3V to 3.6V 12 VCCB = 4.5V to 5.5V 24 VCCB = 2.3V to 5.5V 10 m/V 85 ºC -40 mA Note: 1. To ensure proper device operation, all unused inputs must be held at VCCB or GND. 3 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Electrical Characteristics (Over recommended operating free-air temperature range) Parameters Test Conditions VCCA(1) VCCB(1) IOH = -100uA VOHA (B to A) VOLA (B to A) 1.65V to 3.6V VCCB-0.1 IOH = -4mA 1.65V 1.3 IOH = -8mA 2.3V IOH = -12mA 3.0V IOH = 100uA 1.65V to 3.6V 2.3V ≤ VCCB ≤ 5.5V and VCCB ≥ VCCA 0.1 0.3 IOH = 12mA 3.0V 0.4 IOH = -24mA IOH = 100uA 0.24 2.3V to 5.5V VCCB-0.1 2.3V 1.8 3.0V 2.4 4.5V 3.8 2.3V to 5.5V 0.1 2.3V 0.3 IOH = 12mA 3.0V 0.4 IOH = 24mA 4.5V 0.55 1.65V to 3.6V and VCCB ≥ VCCA 2.3V to 5.5V and VCCB ≥ VCCA ±5 VI or VO = VCCB or GND 0V 0 to 5.5V ±10 VI or VO = VCCA or GND 0 to 3.6V 0V ±10 1.65V to 3.6V and VCCB ≥ VCCA 2.3 to 5.5V and VCCB ≥ VCCA IOH = 8mA VI = VCCA/VCCB or GND IOFF 2.4 2.3V 1.65V ≤ VCCA ≤ 3.6V and VCCB ≥ VCCA ICCA VI = VCCA or GND, IO =0 ICCB VI = VCCB or GND, IO =0 V µA 10 10 CI A1, DIR VI = VCCA or GND 1.8V 3.3V 4.5 CO B1 Vo = VCCB or GND 1.8V 3.3V 4.5 A2, B2 VI or VO = VCCA/VCCB or GND 1.8V 3.3V 6.0 CIO Units 1.8 IOH = 8mA IOH = -12mA II(3) Max. 1.65V IOH = -8mA VOLB (A to B) Typ.(2) IOH = 4mA IOH = -100uA VOHB (A to B) Min. pF Notes: 1. When 1.65 ≤ VCCA ≤ 1.95V, VCCB can not be greater then 3.6V 2. All Typical values are at TA = 25ºC 3. For I/O ports, the paraneter II includes the output leackage current. 4 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Switching Characteristics for VCCA = 1.8V ± 0.15V (Over recommended operating free-air temperature range, see figure 1) Parameter tPHL tPLH tPHL tPLH From (Input) To (Output) A B B A VCCB = 2.5V ±0.2V VCCB = 3.3V ±0.3V Min. Max. Min. Max. 1.0 8 1.0 8 1.0 8 1.0 8 1.0 7 1.0 7 1.0 7 1.0 7 tSK(O) 1.5 Units ns 1 Switching Characteristics for VCCA = 2.5V ± 0.2V (Over recommended operating free-air temperature range, see figure 1) Parameter tPHL tPLH tPHL tPLH From (Input) To (Output) A B B A VCCB = 2.5V ±0.2V VCCB = 3.3V ±0.3V VCCB = 5V ±0.5V Min. Max. Min. Max. Min. Max. 1.0 7 1.0 6.5 1.0 6 1.0 7 1.0 6.5 1.0 6 1.0 6 1.0 6 1.0 5 1.0 6 1.0 6 1.0 5 tSK(O) 1.5 1 Units ns 1 Switching Characteristics for VCCA = 3.3V ± 0.3V (Over recommended operating free-air temperature range, see figure 1) Parameter tPHL tPLH tPHL tPLH From (Input) To (Output) A B B A VCCB = 3.3V ±0.3V tSK(O) Min. Max. Min. Max. 1.0 5 1.0 5 1.0 5 1.0 5 1.0 5 1.0 5 1.0 5 1.0 5 1 5 VCCB = 5V ±0.5V Units ns 1 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage AC Loading and Waveforms VCCA/B 1.8 ± 0.15V 2.5V ± 0.2V 3.0V to 3.6V 5V ± 0.5V CL 15pF 15pF 30pF 50pF tR = 3ns RL 1KΩ 500Ω 500Ω 500Ω tf = 3ns Input VCC 90% 90% 50% 50% 10% 10% GND tW tPHL VCCA/B tPLH VOH Output 50% 50% VOL Output Input CL RL Figure 3. AC Waveforms CL includes load and stray capacitance Input PRR = 1.0 MHz; tW = 500ns Figure 1. AC Test Circuit VCC A Input Output Input = AC Waveform; tr = tf = 1.8ns; PRR = 10 MHz; Duty Cycle = 50% Figure 2. ICCD Test Circuit 6 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Packaging Mechanical: 8-Pin MSOP (U) .003 .012 0.07 0.30 15˚ Max. .003 .012 0.07 0.30 Gauge Plane .010 0.25 .016 .028 0.40 0.70 15˚ Max. .037 0.95 REF 0˚- 6˚ Detail A .112 2.85 .120 3.05 Detail A 15˚ MAX .114 2.90 .122 3.10 15˚ MAX .114 2.90 .122 3.10 Packaging Mechanical: 12-pin TDFN (ZE) 2.50 REF. Pin #1 Corner 0.50 TYP. 0.20 REF. 7 P-0.9 1/28/04 ADVANCED INFORMATION PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Ordering Information Ordering Code Package Code Package Type Package Top Marking PI74STX2G4245UX U 8-pin MSOP STX2G,4245 PI74STX2G4245ZEEX ZE Pb-free & Green, 12-pinTDFN DE Notes: 1. Thermal Characteristics can be found on the web: http://www.pericom.com/packaging/ 2. X = Tape and Reel 3. Number of Transistors = TBD Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com 8 P-0.9 1/28/04