INTEGRATED CIRCUITS 74LVT245 3.3V Octal transceiver with direction pin (3-State) Product specification Supersedes data of 1994 May 20 IC23 Data Handbook 1998 Feb 19 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) FEATURES 74LVT245 DESCRIPTION • Octal bidirectional bus interface • 3-State buffers • Output capability: +64mA/-32mA • TTL input and output switching levels • Input and output interface capability to systems at 5V supply • Bus-hold data inputs eliminate the need for external pull-up The LVT245 is a high-performance BiCMOS product designed for VCC operation at 3.3V. This device is an octal transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features an Output Enable (OE) input for easy cascading and a Direction (DIR) input for direction control. resistors to hold unused inputs • Live insertion/extraction permitted • Power-up 3-State • No bus current loading when output is tied to 5V bus • Latch-up protection exceeds 500mA per JEDEC Std 17 • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model QUICK REFERENCE DATA SYMBOL CONDITIONS Tamb = 25°C; GND = 0V PARAMETER TYPICAL UNIT 2.4 ns tPLH tPHL Propagation delay An to Bn or Bn to An CL = 50pF; VCC = 3.3V CIN Input capacitance DIR, OE VI = 0V or 3.0V 4 pF CI/O I/O pin capacitance Outputs disabled; VI/O = 0V or 3.0V 10 pF ICCZ Total supply current Outputs disabled; VCC = 3.6V 0.13 mA ORDERING INFORMATION TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 20-Pin Plastic SO PACKAGES –40°C to +85°C 74LVT245 D 74LVT245 D SOT163-1 20-Pin Plastic SSOP –40°C to +85°C 74LVT245 DB 74LVT245 DB SOT339-1 20-Pin Plastic TSSOP –40°C to +85°C 74LVT245 PW 74LVT245PW DH SOT360-1 PIN CONFIGURATION PIN DESCRIPTION DIR 1 20 VCC A0 2 19 OE A1 3 18 B0 A2 4 17 B1 A3 5 16 B2 A4 6 15 B3 A5 7 14 B4 A6 8 13 B5 A7 9 12 B6 11 B7 GND 10 PIN NUMBER SYMBOL NAME AND FUNCTION 1 DIR 2, 3, 4, 5, 6, 7, 8, 9 A0 – A7 Data inputs/outputs (A side) 18, 17, 16, 15, 14, 13, 12, 11 B0 – B7 Data inputs/outputs (B side) 19 OE 10 GND Ground (0V) 20 VCC Positive supply voltage Direction control input Output enable input (active–Low) SV00014 1998 Feb 19 2 853-1727 18985 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) LOGIC SYMBOL 74LVT245 LOGIC SYMBOL (IEEE/IEC) 1 DIR A0 19 3 EN1 (BA) A5 A6 A7 B1 2 B2 18 1 2 5 15 A4 3 EN2 (AB) 4 16 A3 1 B0 3 17 A2 G3 2 18 A1 19 OE 3 17 4 16 5 15 6 14 7 13 8 12 9 11 B3 6 14 B4 13 B5 12 B6 7 8 9 11 B7 SV00016 SV00015 FUNCTION TABLE INPUTS H L X Z = = = = INPUTS/OUTPUTS OEn DIR An Bn L L An= Bn Inputs L H Inputs Bn =An Z Z H X High voltage level Low voltage level Don’t care High impedance “Off” state ABSOLUTE MAXIMUM RATINGS1,2 PARAMETER SYMBOL VCC IIK CONDITIONS RATING UNIT –0.5 to +4.6 V –50 mA –0.5 to +7.0 V VO < 0 –50 mA Output in Off or High state –0.5 to +7.0 V Output in Low state 128 Output in High state –64 DC supply voltage DC input diode current VI < 0 voltage3 VI DC input IOK DC output diode current voltage3 VOUT DC output IOUT O DC output current Tstg Storage temperature range mA –65 to +150 °C NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. 3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. 1998 Feb 19 3 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) 74LVT245 RECOMMENDED OPERATING CONDITIONS SYMBOL VCC LIMITS PARAMETER DC supply voltage UNIT MIN MAX 2.7 3.6 V 0 5.5 V VI Input voltage VIH High-level input voltage VIL Input voltage 0.8 V IOH High-level output current –32 mA Low-level output current 32 Low-level output current; current duty cycle ≤ 50%; f ≥ 1kHz 64 IOL 2.0 ∆t/∆v Input transition rise or fall rate; Outputs enabled Tamb Operating free-air temperature range V –40 mA 10 ns/V +85 °C DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL VIK PARAMETER Input clamp voltage TEST CONDITIONS Temp = -40°C to +85°C MIN TYP1 MAX –0.9 –1.2 VCC-0.2 VCC-0.1 VCC = 2.7V; IOH = –8mA 2.4 2.5 VCC = 3.0V; IOH = –32mA 2.0 2.2 VCC = 2.7V; IIK = –18mA VCC = 2.7 to 3.6V; IOH = –100µA VOH VOL High-level output voltage Low-level output voltage 0.1 0.2 VCC = 2.7V; IOL = 24mA 0.3 0.5 VCC = 3.0V; IOL = 16mA 0.25 0.4 VCC = 3.0V; IOL = 32mA 0.3 0.5 VCC = 3.0V; IOL = 64mA 0.4 0.55 1 10 VCC = 3.6V; VI = VCC or GND II Input leakage current VCC = 3.6V; VI = 5.5V I/O Data pins4 VCC = 3.6V; VI = VCC IOFF Output off current Control pins ins IHOLD IEX IPU/PD Bus Hold current A inputs5 20 0.1 1 –1 -5 VCC = 0V; VI or VO = 0 to 4.5V 1 ±100 75 150 VCC = 3V; VI = 2.0V –75 –150 VCC = 0V to 3.6V; VCC = 3.6V ±500 µA µA µA VO = 5.5V; VCC = 3.0V 60 125 µA Power up/down 3-State output current3 VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC; OE/OE = Don’t care 15 ±100 µA VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0 0.13 0.19 VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0 3 12 VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 0 0.13 0.19 VCC = 3V to 3.6V; One input at VCC-0.6V, Other inputs at VCC or GND 0.1 0.2 Quiescent supply current ICCZ ∆ICC ±1 1 V Current into an ouptut in the High state when VO > VCC ICCH ICCL ±0.1 VCC = 3.6V; VI = 0 VCC = 3V; VI = 0.8V V V VCC = 2.7V; IOL = 100µA VCC = 0 or 3.6V; VI = 5.5V UNIT Additional supply current per input pin2 mA mA NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. 2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND 3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.3V a transition time of 100µsec is permitted. This parameter is valid for Tamb = +25°C only. 4. Unused pins at VCC or GND. 5. This is the bus hold overdrive current required to force the input to the opposite logic state. 1998 Feb 19 4 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) 74LVT245 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C. LIMITS SYMBOL PARAMETER WAVEFORM VCC = 3.3V +0.3V VCC = 2.7V MIN TYP1 MAX MAX UNIT tPLH tPHL Propagation delay An to Bn or Bn to An 1 1.0 1.0 2.4 2.4 4.0 4.0 4.7 4.6 ns tPZH tPZL Output enable time to High and Low level 2 1.1 1.5 3.3 3.2 5.5 5.5 7.1 6.5 ns tPHZ tPLZ Output disable time from High and Low Level 2 2.2 2.0 3.6 3.4 5.9 4.8 6.5 4.8 ns NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. AC WAVEFORMS VM = 1.5V, VIN = GND to 2.7V 2.7V OE INPUT An or Bn INPUT 1.5V 1.5V 0V VM VM tPLZ tPZL tPHL tPLH 1.5V An or Bn OUTPUT Bn or An OUTPUT VM VM 3.0V VOL + 0.3V tPHZ tPZH VOL VOH Bn or An OUTPUT VOH – 0.3V 0V SA00192 SV00106 Waveform 1. Input (An or Bn) to Output (Bn or An) Propagation Delays 1998 Feb 19 1.5V Waveform 2. 3-State Output Enable and Disable Times 5 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) 74LVT245 TEST CIRCUIT AND WAVEFORMS 6.0V VCC Open VIN VOUT PULSE GENERATOR RL GND tW 90% NEGATIVE PULSE 90% VM VM 10% 10% D.U.T. RT 0V CL tTHL (tF) RL tTLH (tR) tTLH (tR) tTHL (tF) 90% Test Circuit for 3-State Outputs POSITIVE PULSE AMP (V) 90% VM VM 10% 10% tW SWITCH POSITION TEST SWITCH tPLH/tPHL Open tPLZ/tPZL 6V tPHZ/tPZH GND AMP (V) 0V VM = 1.5V Input Pulse Definition INPUT PULSE REQUIREMENTS DEFINITIONS FAMILY RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. 74LVT Amplitude Rep. Rate 2.7V 10MHz tW tR tF 500ns 2.5ns 2.5ns RT = Termination resistance should be equal to ZOUT of pulse generators. SV00092 1998 Feb 19 6 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) SO20: plastic small outline package; 20 leads; body width 7.5 mm 1998 Feb 19 7 74LVT245 SOT163-1 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm 1998 Feb 19 8 74LVT245 SOT339-1 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1998 Feb 19 9 74LVT245 SOT360-1 Philips Semiconductors Product specification 3.3V Octal transceiver with direction pin (3-State) 74LVT245 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. Product specification Production This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. [1] Please consult the most recently issued datasheet before initiating or completing a design. Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 print code Document order number: yyyy mmm dd 10 Date of release: 05-96 9397-750-03522