INTEGRATED CIRCUITS 74ABT2245 Octal transceiver with direction pin with 30Ω series termination resistors (3-State) Product specification Supersedes data of 1996 Sep 10 IC23 Data Handbook 1998 Jan 16 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) FEATURES 74ABT2245 DESCRIPTION • Octal bidirectional bus interface • 3-State buffers • Output capability: +12mA/–32mA • Latch-up protection exceeds 500mA per Jedec Std 17 • ESD protection exceeds 2000 V per MIL STD 833 Method 3015 The 74ABT2245 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed. The 74ABT2245 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. and 200 V per Machine Model • Power-up 3-State • Live insertion/extraction permitted • Same as 74ABT245-1 • Outputs include series resistance of 30Ω, making external The 74ABT2245 is designed with 30Ω series resistance in both the High and Low states of the output. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus receivers/transmitters. The 74ABT2245 is the same as the 74ABT245-1. The part number has been changed to reflect industry standards. termination resistors unnecessary • Inputs are disabled during 3-State mode QUICK REFERENCE DATA SYMBOL CONDITIONS Tamb = 25°C; GND = 0V PARAMETER TYPICAL UNIT 3.9 ns tPLH tPHL Propagation delay An to Bn or Bn to An CL = 50pF; VCC = 5V CIN Input capacitance DIR, OE VI = 0V or VCC 4 pF CI/O I/O pin capacitance Outputs disabled; VO = 0V or VCC 7 pF ICCZ Total supply current Outputs disabled; VCC =5.5V 50 µA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 20-Pin Plastic DIP –40°C to +85°C 74ABT2245 N 74ABT2245 N SOT146-1 20-Pin plastic SO –40°C to +85°C 74ABT2245 D 74ABT2245 D SOT163-1 20-Pin Plastic SSOP Type II –40°C to +85°C 74ABT2245 DB 74ABT2245 DB SOT339-1 20-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT2245 PW 7ABT2245PW DH SOT360-1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER SYMBOL 1 DIR 18 B0 2, 3, 4, 5, 6, 7, 8, 9 A0 – A7 Data inputs/outputs (A side) 17 B1 18, 17, 16, 15, 14, 13, 12, 11 B0 – B7 Data inputs/outputs (B side) 19 OE 13 B5 10 GND Ground (0V) 12 B6 20 VCC Positive supply voltage DIR 1 20 VCC A0 2 19 OE A1 3 A2 4 A3 5 16 B2 A4 6 15 B3 A5 7 14 B4 A6 8 A7 9 GND 10 11 NAME AND FUNCTION Direction control input Output enable input (active-Low) B7 SA00121 1998 Jan 16 2 853-1761 18865 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) LOGIC SYMBOL FUNCTION TABLE INPUTS 1 DIR 19 OE 2 A0 18 B0 3 A1 17 B1 4 A2 Bn L L An = Bn Inputs L H Inputs Bn = An H X Z Z = High voltage level = Low voltage level = Don’t care = High impedance ”off” state VCC 13 B5 8 A6 An SCHEMATIC OF EACH OUTPUT 14 A5 DIR B4 15 7 OE B3 B2 6 A4 INPUTS/OUTPUTS H L X Z 16 5 A3 74ABT2245 12 B6 9 A7 11 B7 SA00122 OUTPUT LOGIC SYMBOL IEEE/IEC 19 G3 3 EN1 (BA) 1 3 EN2 (AB) SA00237 1 2 2 18 3 17 4 16 5 15 6 14 7 13 8 12 9 11 SA00313 1998 Jan 16 3 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) 74ABT2245 ABSOLUTE MAXIMUM RATINGS1, 2 PARAMETER SYMBOL VCC IIK CONDITIONS RATING UNIT –0.5 to +7.0 V –18 mA –1.2 to +7.0 V VO < 0 –50 mA output in Off or High state –0.5 to +5.5 V output in Low state 128 mA –65 to 150 °C DC supply voltage DC input diode current VI < 0 voltage3 VI DC input IOK DC output diode current voltage3 VOUT DC output IOUT DC output current Tstg Storage temperature range 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 voltage ratings may be exceeded if the input and output current ratings are observed. RECOMMENDED OPERATING CONDITIONS SYMBOL VCC PARAMETER LIMITS DC supply voltage UNIT Min Max 4.5 5.5 V 0 VCC V VI Input voltage VIH High-level input voltage VIL Low-level Input voltage 0.8 V IOH High-level output current –32 mA IOL Low-level output current 12 mA 0 5 ns/V –40 +85 °C ∆t/∆v Input transition rise or fall rate Tamb Operating free-air temperature range 1998 Jan 16 2.0 4 V Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) 74ABT2245 DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITIONS Min VIK VOH VOL O II Input clamp voltage High-level output voltage Low level output voltage Low-level Input leakage g current Tamb = –40°C to +85°C Tamb = +25°C VCC = 4.5V; IIK = –18mA Typ Max –0.9 –1.2 Min UNIT Max –1.2 V VCC = 4.5V; IOH = –3mA; VI = VIL or VIH 2.5 2.9 2.5 V VCC = 5.0V; IOH = –3mA; VI = VIL or VIH 3.0 3.4 3.0 V VCC = 4.5V; IOH = –32mA; VI = VIL or VIH 2.0 2.4 2.0 V VCC = 4.5V; IOL = 5mA; VI = VIL or VIH 0.32 0.55 0.55 V VCC = 4.5V; IOL = 12mA; VI = VIL or VIH 0.5 0.8 0.8 V Control pins VCC = 5.5V; VI = GND or 5.5V ±0.01 ±1.0 ±1.0 µA Data pins VCC = 5.5V; VI = GND or 5.5V ±5 ±100 ±100 µA Power-off leakage current VCC = 0.0V; VI or VO ≤ 4.5V ±5.0 ±100 ±100 µA Power-up/down 3-State output current3 VCC = 2.1V; VO = 0.5V; VI = GND or VCC; V OE = Don’t care ±5.0 ±50 ±50 µA IIH + IOZH 3-State output High current VCC = 5.5V; VO = 2.7V; VI = VIL or VIH 5.0 50 50 µA IIL + IOZL 3-State output Low current VCC = 5.5V; VO = 0.5V; VI = VIL or VIH –5.0 –50 –50 µA ICEX Output high leakage current VCC = 5.5V; VO = 5.5V; VI = GND or VCC 5.0 50 50 µA Output current1 VCC = 5.5V; VO = 2.5V –100 –180 –180 mA VCC = 5.5V; Outputs High, VI = GND or VCC 50 250 250 µA VCC = 5.5V; Outputs Low, VI = GND or VCC 24 30 30 mA VCC = 5.5V; Outputs 3-State; VI = GND or VCC 50 250 250 µA Outputs enabled, one input at 3.4V, other inputs at VCC or GND; VCC = 5.5V 0.5 1.5 1.5 mA Outputs 3-State, one data input at 3.4V, other inputs at VCC or GND; VCC = 5.5V 50 250 250 µA Outputs 3-State, one enable input at 3.4V, other inputs at VCC or GND; VCC = 5.5V 0.5 1.5 1.5 mA IOFF IPU/IPD IO ICCH ICCL Quiescent su supply ly current ICCZ ∆ICC Additional supply current per input pin2 –40 –40 NOTES: 1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second. 2. This is the increase in supply current for each input at 3.4V. 3. This parameter is valid for any VCC between 0V and 2.1V with a transition time of up to 10msec. From VCC = 2.1V to VCC = 5V ± 10%, a transition time of up to 100µsec is permitted. 1998 Jan 16 5 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) 74ABT2245 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER Tamb = +25°C VCC = +5.0V WAVEFORM Tamb = –40°C to +85°C VCC = +5.0V ±0.5V Min Typ Max Min Max UNIT tPLH tPHL Propagation delay An to Bn or Bn to An 1 1.0 1.0 2.8 3.9 4.2 5.0 1.0 1.0 4.7 5.4 ns tPZH tPZL Output enable time to High and Low level 2 1.3 3.0 3.5 5.5 4.6 7.0 1.3 3.0 5.5 7.8 ns tPHZ tPLZ Output disable time from High and Low Level 2 1.5 1.0 4.0 3.4 5.4 4.6 1.5 1.0 6.3 5.0 ns AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V OE INPUT VM VM An or Bn INPUT VM VM tPLZ tPZL tPLH 3.5V tPHL OUTPUT Bn or An OUTPUT VM VM VM VOL + 0.3V tPHZ tPZH VOL VOH VOH – 0.3V OUTPUT VM SA00124 0V SA00314 Waveform 1. Waveforms Showing the Input to Output Propagation Delays Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times TEST CIRCUIT AND WAVEFORMS 7V 500 Ω From Output Under Test S1 Open GND 500 Ω CL = 50 pF Load Circuit TEST S1 tpd open tPLZ/tPZL 7V tPHZ/tPZH open DEFINITIONS Load capacitance includes jig and probe capacitance; CL = see AC CHARACTERISTICS for value. SA00012 1998 Jan 16 6 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) DIP20: plastic dual in-line package; 20 leads (300 mil) 1998 Jan 16 7 74ABT2245 SOT146-1 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) SO20: plastic small outline package; 20 leads; body width 7.5 mm 1998 Jan 16 8 74ABT2245 SOT163-1 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm 1998 Jan 16 9 74ABT2245 SOT339-1 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1998 Jan 16 10 74ABT2245 SOT360-1 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) NOTES 1998 Jan 16 11 74ABT2245 Philips Semiconductors Product specification Octal transceiver with direction pin and 30Ω series termination resistors (3-State) 74ABT2245 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 12 Date of release: 05-96 9397-750-03468