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INTEGRATED CIRCUITS
74ABT2245 Octal transceiver with direction pin with 30 series termination resistors (3-State)
Product specification Supersedes data of 1996 Sep 10 IC23 Data Handbook 1998 Jan 16
Philips Semiconductors
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
FEATURES
* 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
and 200 V per Machine Model
DESCRIPTION
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. The 74ABT2245 is designed with 30 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.
* Power-up 3-State * Live insertion/extraction permitted * Same as 74ABT245-1 * Outputs include series resistance of 30, making external
termination resistors unnecessary
* Inputs are disabled during 3-State mode
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN CI/O ICCZ PARAMETER Propagation delay An to Bn or Bn to An Input capacitance DIR, OE I/O pin capacitance Total supply current CONDITIONS Tamb = 25C; GND = 0V CL = 50pF; VCC = 5V VI = 0V or VCC Outputs disabled; VO = 0V or VCC Outputs disabled; VCC =5.5V TYPICAL 3.9 4 7 50 UNIT ns pF pF A
ORDERING INFORMATION
PACKAGES 20-Pin Plastic DIP 20-Pin plastic SO 20-Pin Plastic SSOP Type II 20-Pin Plastic TSSOP Type I TEMPERATURE RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C OUTSIDE NORTH AMERICA 74ABT2245 N 74ABT2245 D 74ABT2245 DB 74ABT2245 PW NORTH AMERICA 74ABT2245 N 74ABT2245 D 74ABT2245 DB 7ABT2245PW DH DWG NUMBER SOT146-1 SOT163-1 SOT339-1 SOT360-1
PIN CONFIGURATION
DIR A0 A1 A2 A3 A4 A5 A6 A7 1 2 3 4 5 6 7 8 9 20 VCC 19 OE 18 B0 17 B1 16 B2 15 B3 14 B4 13 B5 12 B6 11 B7
PIN DESCRIPTION
PIN NUMBER 1 2, 3, 4, 5, 6, 7, 8, 9 18, 17, 16, 15, 14, 13, 12, 11 19 10 20 SYMBOL DIR A0 - A7 B0 - B7 OE GND VCC NAME AND FUNCTION Direction control input Data inputs/outputs (A side) Data inputs/outputs (B side) Output enable input (active-Low) Ground (0V) Positive supply voltage
GND 10
SA00121
1998 Jan 16
2
853-1761 18865
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
LOGIC SYMBOL
1 DIR 19 2 18 A1 3 17 A2 4 16 A3 5 15 A4 6 14 A5 7 13 A6 8 12 A7 9 11 B7 B6 B5 B4 B3 B2 B1 B0 OE
FUNCTION TABLE
INPUTS OE L L H H L X Z DIR L H X INPUTS/OUTPUTS An An = Bn Inputs Z Bn Inputs Bn = An Z
A0
= High voltage level = Low voltage level = Don't care = High impedance "off" state
SCHEMATIC OF EACH OUTPUT
VCC
SA00122
LOGIC SYMBOL IEEE/IEC
19 G3 3 EN1 (BA) 1 3 EN2 (AB)
OUTPUT
SA00237
1 2 3 4 5 6 7 8 9 2 18 17 16 15 14 13 12 11
SA00313
1998 Jan 16
3
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL VCC IIK VI IOK VOUT IOUT Tstg PARAMETER DC supply voltage DC input diode current DC input voltage3 VO < 0 output in Off or High state output in Low state VI < 0 CONDITIONS RATING -0.5 to +7.0 -18 -1.2 to +7.0 -50 -0.5 to +5.5 128 -65 to 150 UNIT V mA V mA V mA C
DC output diode current DC output voltage3
DC output current 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 150C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER Min VCC VI VIH VIL IOH IOL t/v Tamb DC supply voltage Input voltage High-level input voltage Low-level Input voltage High-level output current Low-level output current Input transition rise or fall rate Operating free-air temperature range 0 -40 4.5 0 2.0 0.8 -32 12 5 +85 LIMITS Max 5.5 VCC V V V V mA mA ns/V C UNIT
1998 Jan 16
4
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
DC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = +25C Min VIK Input clamp voltage VCC = 4.5V; IIK = -18mA VCC = 4.5V; IOH = -3mA; VI = VIL or VIH VOH High-level output voltage VCC = 5.0V; IOH = -3mA; VI = VIL or VIH VCC = 4.5V; IOH = -32mA; VI = VIL or VIH VO OL Low-level Low level output voltage Input leakage g current Control pins Data pins VCC = 4.5V; IOL = 5mA; VI = VIL or VIH VCC = 4.5V; IOL = 12mA; VI = VIL or VIH VCC = 5.5V; VI = GND or 5.5V VCC = 5.5V; VI = GND or 5.5V VCC = 0.0V; VI or VO 4.5V VCC = 2.1V; VO = 0.5V; VI = GND or VCC; V OE = Don't care VCC = 5.5V; VO = 2.7V; VI = VIL or VIH VCC = 5.5V; VO = 0.5V; VI = VIL or VIH VCC = 5.5V; VO = 5.5V; VI = GND or VCC VCC = 5.5V; VO = 2.5V VCC = 5.5V; Outputs High, VI = GND or VCC Quiescent su ly current supply VCC = 5.5V; Outputs Low, VI = GND or VCC VCC = 5.5V; Outputs 3-State; VI = GND or VCC Outputs enabled, one input at 3.4V, other inputs at VCC or GND; VCC = 5.5V ICC Additional supply current per input pin2 Outputs 3-State, one data input at 3.4V, other inputs at VCC or GND; VCC = 5.5V Outputs 3-State, one enable input at 3.4V, other inputs at VCC or GND; VCC = 5.5V -40 2.5 3.0 2.0 Typ -0.9 2.9 3.4 2.4 0.32 0.5 0.01 5 5.0 5.0 5.0 -5.0 5.0 -100 50 24 50 0.5 50 0.5 0.55 0.8 1.0 100 100 50 50 -50 50 -180 250 30 250 1.5 250 1.5 -40 Max -1.2 2.5 3.0 2.0 0.55 0.8 1.0 100 100 50 50 -50 50 -180 250 30 250 1.5 250 1.5 Tamb = -40C to +85C Min Max -1.2 V V V V V V A A A A A A A mA A mA A mA A mA UNIT
II IOFF IPU/IPD IIH + IOZH IIL + IOZL ICEX IO ICCH ICCL ICCZ
Power-off leakage current Power-up/down 3-State output current3 3-State output High current 3-State output Low current Output high leakage current Output current1
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 100sec is permitted.
1998 Jan 16
5
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500 LIMITS SYMBOL PARAMETER WAVEFORM Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation delay An to Bn or Bn to An Output enable time to High and Low level Output disable time from High and Low Level 1 2 2 1.0 1.0 1.3 3.0 1.5 1.0 Tamb = +25C VCC = +5.0V Typ 2.8 3.9 3.5 5.5 4.0 3.4 Max 4.2 5.0 4.6 7.0 5.4 4.6 Tamb = -40C to +85C VCC = +5.0V 0.5V Min 1.0 1.0 1.3 3.0 1.5 1.0 Max 4.7 5.4 5.5 7.8 6.3 5.0 ns ns ns UNIT
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
OE INPUT VM An or Bn INPUT VM VM tPZL tPLH tPHL OUTPUT Bn or An OUTPUT VM tPZH tPHZ VOL + 0.3V VOL VOH VOH - 0.3V OUTPUT VM 0V SA00314 VM tPLZ
3.5V
VM
VM
SA00124
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 From Output Under Test CL = 50 pF 500 S1 Open GND 500
Load Circuit
TEST tpd tPLZ/tPZL tPHZ/tPZH
S1 open 7V 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 30 series termination resistors (3-State)
74ABT2245
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
1998 Jan 16
7
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1998 Jan 16
8
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
1998 Jan 16
9
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
1998 Jan 16
10
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
NOTES
1998 Jan 16
11
Philips Semiconductors
Product specification
Octal transceiver with direction pin and 30 series termination resistors (3-State)
74ABT2245
Data sheet status
Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. 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. 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.
Production
[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. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. print code Document order number: Date of release: 05-96 9397-750-03468
Philips Semiconductors
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