INTEGRATED CIRCUITS 74F298 Quad 2-input multiplexer with storage Product specification IC15 Data Handbook 1989 Aug 14 Philips Semiconductors Product specification Quad 2-input multiplexer with storage FEATURES 74F298 PIN CONFIGURATION • Fully synchronous operation • Select from two data sources • Buffered, negative edge triggered clock • Provides the equivalent of function capabilities of two separate I1b 1 16 VCC I1a 2 15 Qa I0a 3 14 Qb I0b 4 13 Qc I1c 5 12 Qd I1d 6 11 CP I0d 7 10 S GND 8 9 I0c MSI functions (74F157 and 74F175) DESCRIPTION The 74F298 is a high speed Quad 2-Input Multiplexer with storage. It selects 4 bits of data from two sources (ports) under the control of a common Select input (S). The selected data is transferred to the 4-bit output register synchronous with the High-to-Low transition of the clock (CP). The 4-bit register is fully edge triggered. The data inputs (I0 and I1) and Select input (S) must be stable only one setup time prior to the High-to-Low transition of the clock for predictable operation. SF00859 TYPE TYPICAL fMAX TYPICAL SUPPLY CURRENT (TOTAL) 74F298 115MHz 30mA ORDERING INFORMATION ORDER CODE DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 16-pin plastic DIP N74F298N SOT38-4 16-pin plastic SO N74F298D SOT109-1 PKG DWG # INPUT AND OUTPUT LOADING AND FAN-OUT TABLE 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW I0a, I0b, I0c, I0d PINS DESCRIPTION Data inputs 1.0/1.0 20µA/0.6mA I1a, I1b, I1c, I1d Data inputs 1.0/1.0 20µA/0.6mA S Select input 1.0/1.0 20µA/0.6mA Clock input (active falling edge) 1.0/1.0 20µA/0.6mA Data outputs 50/33 1.0mA/20mA CP Qa, Qb, Qc, Qd NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state. LOGIC SYMBOL LOGIC SYMBOL (IEEE/IEC) 11 3 2 4 1 9 5 I1b I0c I1c 7 6 10 3 I0a I1a I0b I0d I1d 2 10 S 4 11 CP 1 Qa Qb Qc C1 M2 2, 1D 15 2, 1D 14 9 Qd 13 5 7 VCC = Pin 16 GND = Pin 8 1989 Aug 14 15 14 13 12 6 12 SF00861 SF00860 2 853–0061 97377 Philips Semiconductors Product specification Quad 2-input multiplexer with storage 74F298 LOGIC DIAGRAM S 10 CP 11 I1a I0a 2 3 I1b I0b I1c I0c 4 5 9 1 I1d R R R CP CP CP S Qa S 15 Qa VCC = Pin 16 GND = Pin 8 Qb S 14 Qb I0d 6 7 R CP Qc S Qd 13 Qc 12 Qd SF00862 FUNCTION TABLE INPUTS CP S ↓ ↓ OUTPUT I0n I1n l l X L l h X H ↓ h X l L ↓ h X h H H h = = L l = = X ↓ = = Qn OPERATING MODE Load source “0” Load source “1” High voltage level High voltage level one setup time prior to the High-to-Low clock transition Low voltage level Low voltage level one setup time prior to the High-to-Low clock transition Don’t care High-to-Low clock transition ABSOLUTE MAXIMUM RATINGS (Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL PARAMETER RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA VOUT Voltage applied to output in High output state –0.5 to VCC V IOUT Current applied to output in Low output state 40 mA Tamb Operating free-air temperature range 0 to +70 °C Tstg Storage temperature range –65 to +150 °C 1989 Aug 14 3 Philips Semiconductors Product specification Quad 2-input multiplexer with storage 74F298 RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL PARAMETER UNIT MIN NOM MAX 5.0 5.5 VCC Supply voltage 4.5 V VIH High-level input voltage 2.0 VIL Low-level input voltage 0.8 V IIK Input clamp current –18 mA IOH High-level output current –1 mA IOL Low-level output current 20 mA Tamb Operating free-air temperature range 70 °C V 0 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) LIMITS SYMBOL TEST CONDITIONSNO TAG PARAMETER MIN VCC = MIN,, VIL = MAX,, VIH = MIN, IOH = –MAX VOH O High level output voltage High-level VOL O Low level output voltage Low-level VIK Input clamp voltage VCC = MIN, II = IIK II Input current at maximum input voltage IIH IIL IOS ICC ±10%VCC 2.5 ±5%VCC 2.7 TYP NO TAG UNIT MAX V 3.4 V ±10%VCC 0.30 0.50 V ±5%VCC 0.30 0.50 V –0.73 –1.2 V VCC = MAX, VI = 7.0V 100 µA High-level input current VCC = MAX, VI = 2.7V 20 µA Low-level input current VCC = MAX, VI = 0.5V –0.6 mA Short-circuit output VCC = MIN,, VIL = MAX,, VIH = MIN, IOL =– MAX currentNO TAG Supply current (total) ICCH ICCL VCC = MAX –60 VCC = MAX –150 mA 30 40 mA 32 40 mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25°C. 3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any sequence of parameter tests, IOS tests should be performed last. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER Tamb = +25°C VCC = +5.0V CL = 50pF RL = 500Ω TEST CONDITION MIN TYP fMAX Maximum clock frequency Waveform NO TAG 110 115 tPLH tPHL Propagation delay CP tp Qn Waveform NO TAG 4.0 4.5 5.5 6.5 1989 Aug 14 4 Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF RL = 500Ω MAX MIN MAX 105 7.5 8.5 4.0 4.5 UNIT ns 9.0 9.5 ns Philips Semiconductors Product specification Quad 2-input multiplexer with storage 74F298 AC SETUP REQUIREMENTS LIMITS SYMBOL Tamb = +25°C VCC = +5.0V CL = 50pF RL = 500Ω TEST CONDITION PARAMETER MIN TYP Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF RL = 500Ω MAX MIN UNIT MAX ts(H) ts(L) Setup time, High or Low I0n, I1n to CP Waveform NO TAG 2.0 2.0 2.0 2.0 ns th(H) th(L) Hold time, High or Low I0n, I1n to CP Waveform NO TAG 1.0 1.0 1.0 1.0 ns ts(H) ts(L) Setup time, High or Low S to CP Waveform NO TAG 6.0 5.0 7.0 6.0 ns th(H) th(L) Hold time, High or Low S to CP Waveform NO TAG 0 0 0 0 ns tw(H) tw(L) CP Pulse width, High or Low Waveform NO TAG 5.0 5.0 5.0 7.0 ns AC WAVEFORMS For all waveforms, VM = 1.5V. The shaded areas indicate when the input is permitted to change for predictable output performance. 1/fMAX Ion, I1n, S VM VM CP VM tW(L) ts(H) VM th(H) VM ts(L) th(L) tW(H) tPHL tPLH VM CP VM VM VM Qn VM SF00864 SF00863 Waveform 1. Clock Input to Output, Clock Pulse Width, and Maximum Clock Frequency Waveform 2. Data Setup and Hold Times TEST CIRCUIT AND WAVEFORMS VCC VIN tw 90% NEGATIVE PULSE VM D.U.T. RT CL RL AMP (V) VM 10% VOUT PULSE GENERATOR 90% 10% tTHL (tf ) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0V AMP (V) 90% 90% POSITIVE PULSE Test Circuit for Totem-Pole Outputs DEFINITIONS: RL = Load resistor; see AC ELECTRICAL CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC ELECTRICAL CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators. VM VM 10% 10% tw 0V Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns SF00006 1989 Aug 14 5 Philips Semiconductors Product specification 74F298 Quad 2-input multiplexer with storage DIP16: plastic dual in-line package; 16 leads (300 mil) 1989 Aug 14 6 SOT38-4 Philips Semiconductors Product specification 74F298 Quad 2-input multiplexer with storage SO16: plastic small outline package; 16 leads; body width 3.9 mm 1989 Aug 14 7 SOT109-1 Philips Semiconductors Product specification 74F298 Quad 2-input multiplexer with storage 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 8 Date of release: 10-98 9397-750-05116