74AC245, 74ACT245 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Features General Description ■ ICC and IOZ reduced by 50% ■ Non-inverting buffers The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (activeLOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition. ■ Bidirectional data path ■ A and B outputs source/sink 24mA ■ ACT245 has TTL-compatible inputs Ordering Information Package Number Package Description 74AC245SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74AC245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Order Number 74AC245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74AC245PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide 74ACT245SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74ACT245SJ 74ACT245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 74ACT245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74ACT245PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number. All packages are lead free per JEDEC: J-STD-020B standard. ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs January 2008 Logic Symbol IEEE/IEC Pin Description Pin Names Description OE Output Enable Input T/R Transmit/Receive Input A0–A7 Side A 3-STATE Inputs or 3-STATE Outputs B0–B7 Side B 3-STATE Inputs or 3-STATE Outputs Truth Table Inputs OE T/R Outputs L L Bus B Data to Bus A L H Bus A Data to Bus B H X HIGH-Z State H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 2 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Connection Diagram Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions 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 VCC IIK Parameter Rating −0.5V to +7.0V Supply Voltage DC Input Diode Current VI = −0.5V −20mA VI = VCC + 0.5 +20mA VI DC Input Voltage −0.5V to VCC + 0.5V IOK DC Output Diode Current VO = −0.5V −20mA VO = VCC + 0.5V +20mA VO DC Output Voltage −0.5V to VCC + 0.5V IO DC Output Source or Sink Current ±50mA ±50mA ICC or IGND DC VCC or Ground Current per Output Pin TSTG Storage Temperature TJ −65°C to +150°C 140°C Junction Temperature Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol VCC Parameter Supply Voltage AC 2.0V to 6.0V ACT 4.5V to 5.5V VI Input Voltage VO Output Voltage TA Operating Temperature ∆V / ∆t Rating 0V to VCC 0V to VCC −40°C to +85°C Minimum Input Edge Rate, AC Devices: 125mV/ns VIN from 30% to 70% of VCC, VCC @ 3.3V, 4.5V, 5.5V ∆V / ∆t 125mV/ns Minimum Input Edge Rate, ACT Devices: VIN from 0.8V to 2.0V, VCC @ 4.5V, 5.5V ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 3 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Absolute Maximum Ratings TA = +25°C Symbol Parameter VCC (V) VIH Minimum HIGH Level Input Voltage 3.0 Conditions VOUT = 0.1V or VCC – 0.1V Maximum LOW Level Input Voltage 2.1 2.1 2.25 3.15 3.15 2.75 3.85 3.85 1.5 0.9 0.9 2.25 1.35 1.35 2.75 1.65 1.65 2.99 2.9 2.9 4.5 4.49 4.4 4.4 5.5 5.49 5.4 5.4 2.56 2.46 3.86 3.76 4.86 4.76 4.5 3.0 4.5 VOUT = 0.1V or VCC – 0.1V 5.5 VOH Minimum HIGH Level Output Voltage Guaranteed Limits 1.5 5.5 VIL Typ. TA = −40°C to +85°C 3.0 3.0 IOUT = –50µA VIN = VIL or VIH, Units V V V IOH = –12mA 4.5 VIN = VIL or VIH, IOH = –24mA 5.5 VIN = VIL or VIH, IOH = VOL Maximum LOW Level Output Voltage 3.0 –24mA(1) IOUT = 50µA 0.002 0.1 0.1 4.5 0.001 0.1 0.1 5.5 0.001 0.1 0.1 0.36 0.44 0.36 0.44 0.36 0.44 ±0.1 ±1.0 µA 3.0 VIN = VIL or VIH, V IOL = 12mA 4.5 VIN = VIL or VIH, IOL = 24mA 5.5 VIN = VIL or VIH, IOL = 24mA(1) IIN(2) Maximum Input Leakage Current 5.5 VI = VCC, GND IOLD Minimum Dynamic Output Current(3) 5.5 VOLD = 1.65V Max. 75 mA 5.5 VOHD = 3.85V Min. −75 mA Maximum Quiescent Supply Current 5.5 VIN = VCC or GND 4.0 40.0 µA Maximum I/O Leakage Current 5.5 VI (OE) = VIL, VIH; VI = VCC, GND; VO = VCC, GND ±0.3 ±3.0 µA IOHD ICC (2) IOZT Notes: 1. All outputs loaded; thresholds on input associated with output under test. 2. IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC. 3. Maximum test duration 2.0ms, one output loaded at a time. ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 4 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs DC Electrical Characteristics for AC TA = +25°C Symbol Parameter VCC (V) VIH Minimum HIGH Level Input Voltage 4.5 5.5 Maximum LOW Level Input Voltage VIL VOH Minimum HIGH Level Output Voltage Conditions Typ. TA = −40°C to +85°C Guaranteed Limits VOUT = 0.1V or VCC − 0.1V 1.5 2.0 2.0 1.5 2.0 2.0 VOUT = 0.1V or VCC − 0.1V 1.5 0.8 0.8 5.5 1.5 0.8 0.8 4.5 IOUT = −50µA 4.49 4.4 4.4 4.5 5.5 4.5 5.49 VIN = VIL or VIH, 5.4 5.4 3.86 3.76 4.86 4.76 0.1 0.1 Units V V V IOH = −24mA 5.5 VIN = VIL or VIH, IOH = −24mA(4) VOL Maximum LOW Level Output Voltage 4.5 IOUT = 50µA 5.5 4.5 0.001 0.001 VIN = VIL or VIH, 0.1 0.1 0.36 0.44 0.36 0.44 ±0.1 ±1.0 V IOL = 24mA 5.5 VIN = VIL or VIH, IOL = 24mA(4) IIN Maximum Input Leakage Current 5.5 VI = VCC, GND µA ICCT Maximum ICC/Input 5.5 VI = VCC − 2.1V 1.5 mA IOLD Minimum Dynamic Output Current(5) 5.5 VOLD = 1.65V Max. 75 mA 5.5 VOHD = 3.85V Min. −75 mA ICC Maximum Quiescent Supply Current 5.5 VIN = VCC or GND 4.0 40.0 µA IOZT Maximum I/O Leakage Current 5.5 VI (OE) = VIL, VIH; VI = VCC, GND; VO = VCC, GND ±0.3 ±3.0 µA IOHD 0.6 Notes: 4. All outputs loaded; thresholds on input associated with output under test. 5. Maximum test duration 2.0ms, one output loaded at a time. ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 5 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs DC Electrical Characteristics for ACT TA = +25°C, CL = 50pF VCC (V)(6) Min. Propagation Delay, An to Bn or Bn to An 3.3 1.5 5.0 5.0 1.5 Propagation Delay, An to Bn or Bn to An 3.3 5.0 Output Enable Time Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Output Enable Time Output Disable Time Output Disable Time TA = −40°C to +85°C, CL = 50pF Typ. Max. Min. Max. Units 8.5 1.0 9.0 ns 3.5 6.5 1.0 7.0 1.5 5.0 8.5 1.0 9.0 1.5 3.5 6.0 1.0 7.0 3.3 2.5 7.0 11.5 2.0 12.5 5.0 1.5 5.0 8.5 1.0 9.0 3.3 2.5 7.5 12.0 2.0 13.5 5.0 1.5 5.5 9.0 1.0 9.5 3.3 2.0 6.5 12.0 1.0 12.5 5.0 1.5 5.5 9.0 1.0 10.0 3.3 2.0 7.0 11.5 1.5 13.0 5.0 1.5 5.5 9.0 1.0 10.0 ns ns ns ns ns Note: 6. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V. AC Electrical Characteristics for ACT TA = +25°C, CL = 50pF Symbol Parameter TA = −40°C to +85°C, CL = 50pF VCC (V)(7) Min. Typ. Max. Min. Max. Units tPLH Propagation Delay, An to Bn or Bn to An 5.0 1.5 4.0 7.5 1.5 8.0 ns tPHL Propagation Delay, An to Bn or Bn to An 5.0 1.5 4.0 8.0 1.0 9.0 ns tPZH Output Enable Time 5.0 1.5 5.0 10.0 1.5 11.0 ns tPZL Output Enable Time 5.0 1.5 5.5 10.0 1.5 12.0 ns tPHZ Output Disable Time 5.0 1.5 5.5 10.0 1.0 11.0 ns tPLZ Output Disable Time 5.0 2.0 5.0 10.0 1.5 11.0 ns Note: 7. Voltage range 5.0 is 5.0V ± 0.5V. Capacitance Symbol Parameter Conditions Typ. Units CIN Input Capacitance VCC = OPEN 4.5 pF CI/O Input/Output Capacitance VCC = 5.0V 15.0 pF CPD Power Dissipation Capacitance VCC = 5.0V 45.0 pF ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 6 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs AC Electrical Characteristics for AC 13.00 12.60 A 11.43 20 11 B 9.50 10.65 7.60 10.00 7.40 2.25 1 PIN ONE INDICATOR 10 0.51 0.35 0.25 M 0.65 1.27 1.27 C B A LAND PATTERN RECOMMENDATION 2.65 MAX SEE DETAIL A 0.33 0.20 C 0.75 0.25 X 45° SEATING PLANE NOTES: UNLESS OTHERWISE SPECIFIED (R0.10) GAGE PLANE (R0.10) 0.10 C 0.30 0.10 0.25 8° 0° A) THIS PACKAGE CONFORMS TO JEDEC MS-013, VARIATION AC, ISSUE E B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) CONFORMS TO ASME Y14.5M-1994 1.27 0.40 SEATING PLANE E) LANDPATTERN STANDARD: SOIC127P1030X265-20L (1.40) DETAIL A F) DRAWING FILENAME: MKT-M20BREV3 SCALE: 2:1 Figure 1. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 7 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Physical Dimensions 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Physical Dimensions (Continued) Figure 2. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 8 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Physical Dimensions (Continued) Figure 3. 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 9 26.92 24.89 7.11 6.09 PIN #1 (0.97) 1.78 1.14 2.54 0.36 0.56 .001[.025] 3.43 3.17 5.33 MAX 7° TYP 7.87 7° TYP 3.55 3.17 0.38 MIN 7.62 10.92 MAX 0.20 0.35 C NOTES: Figure 4. 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 10 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Physical Dimensions (Continued) 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Physical Dimensions (Continued) Figure 5. 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 11 ACEx® Build it Now™ CorePLUS™ CROSSVOLT™ CTL™ Current Transfer Logic™ EcoSPARK® EZSWITCH™ * ™ PDP-SPM™ SyncFET™ ® Power220® ® Power247 The Power Franchise® POWEREDGE® Power-SPM™ PowerTrench® TinyBoost™ Programmable Active Droop™ TinyBuck™ ® QFET TinyLogic® QS™ TINYOPTO™ QT Optoelectronics™ TinyPower™ ® Quiet Series™ TinyPWM™ RapidConfigure™ TinyWire™ Fairchild® SMART START™ Fairchild Semiconductor® µSerDes™ ® SPM FACT Quiet Series™ UHC® STEALTH™ FACT® Ultra FRFET™ SuperFET™ FAST® UniFET™ SuperSOT™-3 FastvCore™ VCX™ ® ®* SuperSOT™-6 FlashWriter SuperSOT™-8 * EZSWITCH™ and FlashWriter® are trademarks of System General Corporation, used under license by Fairchild Semiconductor. FPS™ FRFET® Global Power ResourceSM Green FPS™ Green FPS™ e-Series™ GTO™ i-Lo™ IntelliMAX™ ISOPLANAR™ MegaBuck™ MICROCOUPLER™ MicroFET™ MicroPak™ MillerDrive™ Motion-SPM™ OPTOLOGIC® OPTOPLANAR® DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve the design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. Rev. I32 ©1988 Fairchild Semiconductor Corporation 74AC245, 74ACT245 Rev. 1.5.0 www.fairchildsemi.com 12 74AC245, 74ACT245 — Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks.