TC74AC245 TC74AC245P TC74AC245F TC74AC245FT TC74AC640P TC74AC640F TC74AC640FT TC74AC245P F FT TC74AC640P F FT
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TC74AC245,640P/F/FT
Octal Transceiver TC74AC245P/F/FT 3-State, Non-Inverting TC74AC640P/F/FT 3-State, Inverting
TC74AC245, advanced high speed CMOS OCTAL TRANSCEIVERs fabricated with silicon gate double-layer metal wiring C2MOS technology. They achieve high speed operation similar equivalent Bipolar Schottky while maintaining CMOS power dissipation. They intended two-way asynchronous communication between data busses. direction data transmission determined level input. enable input used disable device that busses effectively isolated. inputs equipped with protection circuits against static discharge transient excess voltage.
TC74AC245P, TC74AC640P
TC74AC245F, TC74AC640F
Features (Note 1)(Note
High speed: (typ.) power dissipation: (max) 25°C High noise immunity: VNIH VNIL (min) Symmetrical output impedance: |IOH| (min) Capability driving transmission lines. Balanced propagation delays: tpLH tpHL Wide operating voltage range: (opr) function compatible with 74F245/640 Note apply signal terminal when output mode. Damage result.
TC74AC245FT, TC74AC640FT
Weight DIP20-P-300-2.54A SOP20-P-300-1.27A TSSOP20-P-0044-0.65A
1.30 (typ.) 0.22 (typ.) 0.08 (typ.)
Note floating (high impedance) terminals must have their input levels fixed means pull pull down resistors.
2007-10-01
TC74AC245,640P/F/FT
Assignment
TC74AC245
TC74AC640 (top view)
(top view)
Logic Symbol
TC74AC245 (19) [BA] [AB] (17) (16) (15) (14) (13) (12) (11) (18) (19) TC74AC640 [BA] [AB] (18) (17) (16) (15) (14) (13) (12) (11)
2007-10-01
TC74AC245,640P/F/FT
Truth Table
Inputs Function Output
Input
Outputs Input
Output
AC245
AC640
Don't care High impedance
Absolute Maximum Ratings (Note
Characteristics Supply voltage range input voltage output voltage Input diode current Output diode current output current VCC/ground current Power dissipation Storage temperature Symbol VOUT IOUT Tstg Rating -0.5 -0.5 -0.5 ±200 (DIP) (Note 2)/180 (SOP/TSSOP) Unit
Note Exceeding absolute maximum ratings, even briefly, lead deterioration performance even destruction. Using continuously under heavy loads (e.g. application high temperature/current/voltage significant change temperature, etc.) cause this product decrease reliability significantly even operating conditions (i.e. operating temperature/current/voltage, etc.) within absolute maximum ratings operating ranges. Please design appropriate reliability upon reviewing Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/Derating Concept Methods) individual reliability data (i.e. reliability test report estimated failure rate, etc). Note range -40°C 65°C. From 65°C 85°C derating factor mW/°C should applied
Operating Ranges (Note)
Characteristics Supply voltage Input voltage Output voltage Operating temperature Input rise fall time Symbol VOUT Topr dt/dV Rating (VCC (VCC Unit ns/V
Note:
operating ranges required ensure normal operation device. Unused inputs inputs must tied either GND. Please connect both inputs outputs with when terminal changes function. this case, please note that output short-circuited.
2007-10-01
TC74AC245,640P/F/FT
Electrical Characteristics
Characteristics
Test Condition Characteristics Symbol High-level input voltage Low-level input voltage High-level output voltage (Note) Low-level output voltage 3-state output off-state current Input leakage current Quiescent supply current VOUT (Note) 1.50 2.10 3.85 2.58 3.94 25°C Typ. 0.50 0.90 1.65 0.36 0.36 ±0.5 ±0.1 85°C 1.50 2.10 3.85 2.48 3.80 3.85 0.50 0.90 1.65 0.44 0.44 1.65 ±5.0 ±1.0 80.0 Unit
Note:
This spec indicates capability driving transmission lines. output should tested time maximum duration.
2007-10-01
TC74AC245,640P/F/FT
Characteristics input:
Characteristics Symbol tpLH tpHL tpLH tpHL tpZL tpZH tpLZ tpHZ CI/O DIR, TC74AC245 Test Condition Propagation delay time (Note Propagation delay time (Note Output enable time 25°C Typ. 10.9 10.0 15.3 10.5 11.4 85°C 12.4 11.4 17.4 12.0 13.0 10.0 Unit
Output disable time Input capacitance input capacitance Power dissipation capacitance
(Note TC74AC640
Note defined value internal equivalent capacitance which calculated from operating current consumption without load. Average operating current obtained equation: (opr) (per bit) Note TC74AC245 only Note TC74AC640 only
2007-10-01
TC74AC245,640P/F/FT
Package Dimensions
Weight: 1.30 (typ.)
2007-10-01
TC74AC245,640P/F/FT
Package Dimensions
Weight: 0.22 (typ.)
2007-10-01
TC74AC245,640P/F/FT
Package Dimensions
Weight: 0.08 (typ.)
2007-10-01
TC74AC245,640P/F/FT
RESTRICTIONS PRODUCT
Toshiba Corporation, subsidiaries affiliates (collectively "TOSHIBA"), reserve right make changes information this document, related hardware, software systems (collectively "Product") without notice. This document information herein reproduced without prior written permission from TOSHIBA. Even with TOSHIBA's written permission, reproduction permissible only reproduction without alteration/omission. Though TOSHIBA works continually improve Product's quality reliability, Product malfunction fail. Customers responsible complying with safety standards providing adequate designs safeguards their hardware, software systems which minimize risk avoid situations which malfunction failure Product could cause loss human life, bodily injury damage property, including data loss corruption. Before creating producing designs using, customers must also refer comply with latest versions relevant TOSHIBA information, including without limitation, this document, specifications, data sheets application notes Product precautions conditions forth "TOSHIBA Semiconductor Reliability Handbook" instructions application that Product will used with for. Customers solely responsible aspects their product design applications, including limited determining appropriateness this Product such design applications; evaluating determining applicability information contained this document, charts, diagrams, programs, algorithms, sample application circuits, other referenced documents; validating operating parameters such designs applications. TOSHIBA ASSUMES LIABILITY CUSTOMERS' PRODUCT DESIGN APPLICATIONS. Product intended general electronics applications (e.g., computers, personal equipment, office equipment, measuring equipment, industrial robots home electronics appliances) specific applications expressly stated this document. Product neither intended warranted equipment systems that require extraordinarily high levels quality and/or reliability and/or malfunction failure which cause loss human life, bodily injury, serious property damage serious public impact ("Unintended Use"). Unintended includes, without limitation, equipment used nuclear facilities, equipment used aerospace industry, medical equipment, equipment used automobiles, trains, ships other transportation, traffic signaling equipment, equipment used control combustions explosions, safety devices, elevators escalators, devices related electric power, equipment used finance-related fields. Product Unintended unless specifically permitted this document. disassemble, analyze, reverse-engineer, alter, modify, translate copy Product, whether whole part. Product shall used incorporated into products systems whose manufacture, use, sale prohibited under applicable laws regulations. information contained herein presented only guidance Product use. responsibility assumed TOSHIBA infringement patents other intellectual property rights third parties that result from Product. license intellectual property right granted this document, whether express implied, estoppel otherwise. ABSENT WRITTEN SIGNED AGREEMENT, EXCEPT PROVIDED RELEVANT TERMS CONDITIONS SALE PRODUCT, MAXIMUM EXTENT ALLOWABLE LAW, TOSHIBA ASSUMES LIABILITY WHATSOEVER, INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, INCIDENTAL DAMAGES LOSS, INCLUDING WITHOUT LIMITATION, LOSS PROFITS, LOSS OPPORTUNITIES, BUSINESS INTERRUPTION LOSS DATA, DISCLAIMS EXPRESS IMPLIED WARRANTIES CONDITIONS RELATED SALE, PRODUCT, INFORMATION, INCLUDING WARRANTIES CONDITIONS MERCHANTABILITY, FITNESS PARTICULAR PURPOSE, ACCURACY INFORMATION, NONINFRINGEMENT. otherwise make available Product related software technology military purposes, including without limitation, design, development, use, stockpiling manufacturing nuclear, chemical, biological weapons missile technology products (mass destruction weapons). Product related software technology controlled under Japanese Foreign Exchange Foreign Trade U.S. Export Administration Regulations. Export re-export Product related software technology strictly prohibited except compliance with applicable export laws regulations. Please contact your TOSHIBA sales representative details environmental matters such RoHS compatibility Product. Please Product compliance with applicable laws regulations that regulate inclusion controlled substances, including without limitation, RoHS Directive. TOSHIBA assumes liability damages losses occurring result noncompliance with applicable laws regulations.
2007-10-01
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