PI74STX2G4245ZEEX

PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Features Description • Operation Voltage: 1.65V ≤ VDDA ≤ 3.6V 2.3V ≤ VDDB ≤ 5.5V VDDA ≤ VDDB Pericom Semiconductor’s PI74STX2G4245, a 2-bit noninverting buffer/transceiver, contains two separate supply rails:A port (VDDA), set to operate from 1.8V to 3.3V; B port (VDDB), 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. The DIR pin is supplied by VDDB. • High Speed: tpd = 5ns typical into 30pF @ 3V VDD • Power down high-impedance inputs and outputs • High output drive: ±12mA at 3V VDDA/VDDB ±24mA at 5V VDDB • Industrial operation at –40°C to +85°C • Packaging (Pb-free & Green available): – 8-pin MSOP (U) – 12-pin TDFN (ZE) Block Diagram DIR A2 Pin Configuration (MSOP) 4 3 6 A1 2 (1.8V to 3.3V)VDDA 1 8 A1 2 7 B1 A2 3 6 B2 DIR 4 5 GND VDDB (2.5V to 5V) B2 7 B1 Pin Configuration (TDFN) Function Table Input Output DIR DATA L B2 A2 H A2 B2 NC 1 12 NC B1 (1.8V to 3.3V ) VDDA 2 11 VDDB (2.5V to 5V) A1 3 10 B1 A2 4 9 B2 X A1 Pin Description Pin Name Description DIR 5 8 GND DIR Direction Control NC 6 7 NC A1 Data Input B1 Data Output A2, B2 Data Input/Output VDDA, VDDB Power Supply 08-0291 * NC = No Connect 1 PS8729F 10/11/08 PI74STX2G4245 2-Bit Level Shifting Buffer/Transceiver with Configurable Dual Supply Voltage Maximum Ratings (Absolute maximum ratings over operating free-air temperature range from VDDB at 2.5V & VDDA at 1.2V, unless otherwise noted) Supply voltage range: VDDA ............................. –0.5V to +6V VDDB ............................. –0.5V to +6V Input Voltage Range, VI: Input A1(1) ................... –0.5V to +6V I/O A2(1,2) ....... –0.5V to VDDA+0.5V I/O B2(1,2) ........–0.5V to VDDB+0.5V Output Voltage Range, VO Output B1(1,2) ...–0.5V to VDDB +0.5V DC Input Diode Current, IIK (VO