PO74G245B

PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic FEATURES: . Patented technology . Operating frequency up to 1GHz with 2pf load . Operating frequency up to 730MHz with 5pf load . Operating frequency up to 320MHz with 15pf load . Operating frequency up to 75MHz with 50pf load . VCC Operates from 1.2V to 3.6V . Propagation delay < 1.65ns max with 15pf load . Low input capacitance: 5pf typical . Available in 20pin TSSOP package 04/19/09 DESCRIPTION: Potato Semiconductor’s PO74G245A is designed for world top performance using submicron CMOS technology to achieve 1GHz TTL /CMOS output frequency with less than 1.65ns propagation delay. This Octal bus buffer gate is designed for 1.2-V to 3.6-V VCC operation. The PO74G245A features independent 8-bit Bidirectional Transceiver with 3 state outputs. Each output is disabled when the associated output- enable(OE) input is high. Pin Configuration DIR A1 A2 A3 A4 A5 A6 A7 A8 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Logic Block Diagram DIR VC C OE B1 B2 B3 B4 B5 B6 B7 B8 OE A0 B0 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 Pin Description Pin Name OE DIR AX BX GND VCC De s cription 3- State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3- State Inputs Side B Outputs or 3- State Outputs Ground Power Truth Table Inputs OE L L H DIR L H X Bus B Data to Bus A Bus A Data to Bus B Z Outputs 1 C opyright © Potato Semiconductor Corporation PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic 04/19/09 Maximum Ratings Description Storage Temperature Operation Temperature Operation Voltage Input Voltage Output Voltage Max -65 to 150 -40 to 85 -0.5 to +4.6 -0.5 to +Vcc -0.5 to Vcc+0.5 Unit °C °C V V V Note: stresses greater than 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 specification is not implied. DC Electrical Characteristics VCC Supply Voltage O perating (Over the Operating Range, TA = –40 °C +85°C) M in. 1.4 1.2 VCC 0.65 x VCC 0.65 x VCC 1.7 2 GN D 0.35 x VCC 0.35 x VCC 0.7 0.8 0 3.6 VCC 3.6 –4 –6 – 12 – 24 4 6 12 24 5 –40 85 ns/V °C mA V M a x. 3.6 Units Data retention only VCC = 1.2V VIH High- level Input Voltage VCC = 1.4V to 1.6V VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VCC = 1.2V VCC = 1.4V to 1.6V VIL Low- level Input Voltage VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VI VO Input Voltage O utput Voltage Active State 3- State VCC = 1.4V to 1.6V 0 0 IOH High- level output current VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VCC = 1.4V to 1.6V VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V IOL Low- level output current !t!v TA Input transition rise or fall rate O perating free- air temperature VCC = 1.4V to 3.6V 2 Copyright © Potato Semiconductor Corporation PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic 04/19/09 DC Electrical Characteristics Parame te rs VO H IO HS = –4mA IO HS = –6mA IO HS = –12mA IO HS = –24mA IO LS = 4mA VO L IO LS = 6mA IO LS = 12mA IO LS = 24mA II IO Z IC C CI CO Control Inputs Data Inputs Outputs VO = VC C or GND VI = VC C or GND VO = VC C or GND VI = VC C or GND VI = VC C or GND (Over the Operating Range, TA = –40 °C +85°C) Te s t Conditions (1) VIH = 0.91V VIH = 1.07V VIH = 1.7V VIH = 2V VIL = 0.49V VIL = 0.57V VIL = 0.7V VIL = 0.8V VCC 1. 4 V 1.65V 2.3V 3V 1.4V 1. 6 5 V 2 . 3V 3V 3.6V 3.6V M in. 1.05 1. 2 1. 7 5 2.0 Typ. M ax. Units 0.4 0.45 0.55 0.8 ± 2.5 ± 10 ±350 3.5 5 5 V µA IO = 0 3.6V pF Notes: 1. Typical values are measured at TA = 25°C. 3 Copyright © Potato Semiconductor Corporation PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic 04/19/09 Switching Characteristics Parame te rs tpd ten tdis fmax CL=2pf fmax CL=5pf fmax CL=15pf fmax CL=50pf From (Input) A or B OE OE A or B A or B A or B A or B To (Output) B or A B or A B or A B or A B or A B or A B or A VCC = 1.2V Typ. 3.5 8.4 8.4 VCC = 1.5V ± 0.1V Max 3.5 9.6 9.6 270 150 100 45 VCC = 1.8V ± 0.15V Max 2.9 7.0 7.0 300 150 130 50 VCC = 2.5V ± 0.2V Max 1.85 4.3 4.3 685 390 220 70 VCC = 3.3V ± 0.3V Max 1.65 3.5 3.5 1000 730 320 75 Units ns Mhz Operating Characteristics, Parame te rs Cpd Power Dissipation Capacitance TA= 25°C Te s t Conditions CL = 0pF, f = 10 MHz VCC = 1.2V Typical 18.5 VCC = 1.8V ± 0.15V Typical 20 VCC = 2.5V ± 0.2V Typical 22 VCC = 3.3V ± 0.3V Typical 26 Units pF 4 Copyright © 2005-2006, Potato Semiconductor Corporation PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic 04/19/09 Test Waveforms Test Circuit 500 Ω 50Ω 50pF to 2pF 50 Ω 500 Ω 5 Copyright © Potato Semiconductor Corporation PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic 04/19/09 Packaging Mechanical Drawing: 20 pin TSSOP 20 .169 .177 4.3 4.5 .018 .030 0.45 0.75 .238 .269 6.1 6.7 1 .252 .260 6.4 6.6 .047 1.20 Max .004 0.09 .008 0.20 SEATING PLANE .0256 BSC 0.65 .007 .012 0.19 0.30 .002 0.05 .006 0.15 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 6 Copyright © Potato Semiconductor Corporation PO74G245B 1.2v-3.6v, 8-bit Bidirectional Transceiver with 3 state outputs 74 Series GHz Logic 04/26/09 Ordering Information Ordering Code PO74G245ASU PO74G245ASR 20pin TSSOP 20pin TSSOP Package Tube Tape and reel Pb-free & Green Pb-free & Green Top-Marking PO74G245AS PO74G245AS TA -40°C to 85°C -40°C to 85°C IC Package Information PACKAGE CODE PACKAGE TYPE TAPE WIDTH (mm) TAPE PITCH (mm) PIN 1 LOCATION TAPE TRAILER LENGTH QTY PER REEL TAPE LEADER LENGTH QTY PER TUBE T TSSOP 20 16 8 Top Left Corner 39 (12”) 3000 64 (20”) 74 7 Copyright © Potato Semiconductor Corporation