INTEGRATED CIRCUITS 74LVC1284 3.3V Parallel printer interface transceiver/buffer Product specification IC24 Low Voltage Handbook 1995 Nov 10 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer FEATURES 74LVC1284 DESCRIPTION • Asynchronous operation • 4-Bit transceivers • 3 additional buffer/driver lines • TTL compatible inputs • ESD protection exceeds 1000V per MIL STD 883 Method 3015 The 74LVC1284 parallel interface chip is designed to provide an asynchronous, 4-bit, bi-directional, parallel printer interface for personal computers. Three additional lines are included to provide handshaking signals between the host and the peripheral. The part is designed to match IEEE 1284 standard. The 4 transceiver pins (A/B 1-4) allow data transmission from the A bus to the B bus, or from the B bus to the A bus, depending on the state of the direction pin DIR. and 200V per Machine Model • Input Hysteresis • Low Noise Operation • Center Pin VCC & GND • IEEE 1284 Compliant Level 1 & 2 • Overvoltage Protection on B side The B bus and the Y5-Y7 lines have totem pole or open drain style outputs depending on the state of the high drive enable pin HD. The A bus only has totem pole style outputs. All inputs are TTL compatible with at least 300mV of input hysteresis at VCC = 3.3V. QUICK REFERENCE DATA SYMBOL CONDITIONS Tamb = 25°C; GND = 0V TYPICAL UNIT VCC = 3.3V; VO = 1.65V 0.2V (See Figure 2) 45 Ω PARAMETER RD B/Y Side output resistance SR B/Y Side slew rate RL = 62Ω; CL = 50pF (See Waveform 4) 0.2 V/ns ICC Total static current VI = VCC/GND; IO = 0 5 µA Input hysteresis VCC= 3.3V 0.4 V Propagation delay to the B/Y side outputs VCC = 3.3V 12.6/12.4 ns VHYS tPLH/tPHL A –B/Y ORDERING INFORMATION PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER 20-pin plastic SO 0°C to +70°C 7LVC1284 D SOT163-1 20-pin plastic SSOP Type II 0°C to +70°C 74LVC1284 DB SOT339-1 20-pin plastic TSSOP Type I 0°C to +70°C 74LVC1284 PW SOT360-1 PIN CONFIGURATION LOGIC SYMBOL A1 1 20 B1 A2 2 19 B2 A3 3 18 B3 A4 4 17 B4 GND 5 16 VCC GND 6 15 VCC A5 7 14 Y5 A6 8 13 Y6 A7 9 12 Y7 DIR 10 A A1 A2 A B 11 HD A5 SK00001 A6 A7 DIR A B1 B2 A A3 A4 B B B B3 B4 A Y A Y A Y Y5 Y6 Y7 HD SK00009 1995 Nov 10 2 853-1819 16000 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer PIN DESCRIPTION 74LVC1284 FUNCTION TABLE PIN NUMBER SYMBOL FUNCTION 1,2,3,4 A1 - A4 Data inputs/outputs 20,19,18,17 B1 - B4 IEEE 1284 Std. outputs/inputs 7,8,9 A5 - A7 Data inputs 14,13,12 Y5 - Y7 IEEE 1284 Std. outputs 10 DIR 11 HD 5,6 GND Ground (0V) 15,16 VCC Positive supply voltage INPUTS OUTPUTS INPUTS/OUTPUTS DIR HD A5-7 Y5-7 A1-4 B1-4 L L L L A=B Inputs L L H Z A=B Inputs L H L L A=B Inputs Direction selection L H H H A=B Inputs B/Y–side high drive enable/disable H L L L Inputs Low Outputs Low H L H Z Inputs High Outputs Z H H L L Inputs B=A H H H H Inputs B=A H = High Voltage L = Low Voltage Z = High Impedance, Off-State ABSOLUTE MAXIMUM RATINGS1, 2 PARAMETER SYMBOL CONDITIONS ESD Immunity, per Mil Std 883C method 3015 VCC DC supply voltage IIK DC input diode current VI < 0 IOK DC output diode current VO < 0 VIN DC input voltage3 side3 VOUT B/YDC DC output voltage on B/Y VOUT B/Y (tr) Transient output voltage on B/Y side4 VOUT A side DC output voltage on A side IO Tstg ICC/IGND DC output current RATING UNIT 2 kV –0.5 to +4.6 V 20 mA 50 mA –0.5 to +5.5 V –0.5 to +5.5 V –2 to +7 V 40ns transient –0.5 to VCC +0.5 V 50 mA Outputs in High or Low state Storage temperature range –60 to +150 °C 200 mA Continuous current through VCC or GND 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. 4. VOUT B/Y (tr) guarantees only that this part will not be damaged by reflections in application so long as the voltage levels remain in the specified range. RECOMMENDED OPERATING CONDITIONS SYMBOL VCC VI Input voltage B/Y output voltage VOUT A side output voltage IOH B/Y side output current High IOL B/Y side output current Low 1995 Nov 10 MIN DC supply voltage VOUT Tamb LIMITS PARAMETER Operating free-air temperature range UNIT 3.0 3.6 V 0 VCC V –0.5 5.5 V 0 VCC V –14 mA 14 mA +70 °C 0 3 MAX Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer 74LVC1284 DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL VOH PARAMETER An High level High-level out ut voltage output Bn or Yn VOL An Low level Low-level output voltage Bn or Yn VCC = Min to Max; IOH = –50µA TYP VCC–0.2 VCC 2.4 VCC = 3.0V; IOH = 14mA 2.2 Tamb = 0°C to +70°C MAX 2.4 MIN UNIT MAX VCC–0.2 V 2.4 V 2.1 V VCC = Min to Max; IOL = 50µA; VI = VIL or VIH 0.2 0.2 V VCC = 3.0V; IOL = 4mA; VI = VIL or VIH 0.4 0.4 V VCC = 3.0V; IOL = –14mA; VI = VIL or VIH 0.8 0.9 V 0.8 0.8 High-level input voltage VCC = Min to Max VIL Low-level input voltage VCC = Min to Max VHYS Input Hysteresis VCC = 3.3V RD B/Y side Output Impedance See Figure 2 Input leakage current (A5-A7 DIR, HD) VCC = 3.6V; VO = VCC or GND; Not for I/O pins Input current for common I/O pins VCC = 3.6V;VI = 5.5V or GND IOFF B/Y Side Power-off leakage current VCC = 0.0V; VO = 0 to 5.5V IOZH 3-State output High current Yn IOZL IIHZ/IILZ MIN VCC = 3.0V; IOH = –4mA VIH II Tamb = 25°C TEST CONDITIONS 2.0 2.0 0.4 38 45 0.3 53 35 ±1.0 0.1 V 55 Ω ±5.0 µA µA 15 ±10 ±100 µA VCC = 3.6V; VO = VCC; VI = VIL or VIH 5 20 µA 3-State output Low current Yn VCC = 3.6V; VO = GND; VI = VIL or VIH –5 –20 µA IIH+IOZH current (A1 – A4, Bn) VCC = 3.6V; VI/O = VCC 5 25 µA IIL+IOZL current (A1 – A4, Bn) VCC = 3.6V; VI/O = GND –5 –25 µA Quiescent Supply Current VCC = 3.6V; IO = 0; VI = GND or VCC 10 50 µA ICC 5 AC CHARACTERISTICS GND = 0V, tR = tF = 3.0ns, CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER Tamb = 25°C VCC = 3.3V WAVEFORM MIN Tamb = 0 to + 70°C VCC = Min to Max TYP MAX MIN UNIT MAX SR B-Side Slew Rate 4 0.05 0.2 0.35 0.05 0.4 V/ns tPLH tPHL Propagation delay A toY or A to B 5 6.0 6.0 12.6 12.4 18.0 18.0 5.0 5.0 19.5 20.0 ns tPLH tPHL Propagation delay B to A 1 1.5 1.5 5.5 5.6 7.9 7.6 1.5 1.5 9.5 9.0 ns tPZH tPHZ Output enable/disable time to/from High level HD to Y or HD to B 2 4.0 2.0 12.0 6.5 16.0 9.1 4.0 2.0 20.0 11.0 ns tPZL tPLZ Output enable/disable time to/from Low level A to Y or A to B 2 5.0 1.5 12.7 5.0 16.3 7.1 5.0 1.5 20.0 9.0 ns tPZH tPZL Output enable time from DIR to B 2 8.0 8.0 12.3 12.7 18.0 18.0 4.0 4.0 20.0 20.0 ns tPHZ tPLZ Output disable time from DIR to B 2 5.0 6.0 8.9 9.1 12.5 12.0 2.0 2.0 14.5 14.0 ns tPZH tPZL Output enable time from DIR to A 2 3.5 4.0 6.9 8.6 13.0 14.0 3.0 3.0 14.5 16.0 ns tPHZ tPLZ Output disable from DIR to A 2 2.5 2.5 3.7 3.7 5.5 5.0 2.0 2.0 6.0 5.5 ns 1995 Nov 10 4 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer 74LVC1284 AC WAVEFORMS VM = 1.5V VX = VOL "0.3V VY = VOH –0.3V VOL and VOH are the typical output voltage drops that occur with the output load. (VCC never goes below 3.0V). V = 2.7V 2.4V VM INPUTS INPUT 1.4V 1.4V 0.4V GND tPHL tPLH tPLH tPHL VOH VOUT OUTPUTS OUTPUT VM 1.4V VOUT –1.4V VOL SY00001 SY00008 Waveform 1. Input Bn to output An propagation delays Waveform 3. Voltage Waveforms Propagation Delay Times (A To B) Measured at Output Pin 2.4V DIR to A VM DIR to B INPUT tPZL tPLZ VM 2.4V 0.9V OUTPUT HD to B 0.4V 1.9V 0.4V t1 t2 t1 t2 VM SY00007 VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL Waveform 4. Slew Rate Waveforms Voltage Waveforms (Input pulse rise and fall time are 3ns, 150ns t pulse width t10 µs, for both a Low to High and a High to Low transition.) Slew Rate measured between 0.4V and 0.9V - rising. Slew Rate measured between 2.4V and 1.9V - falling. Slew Rate measured at TP1. VM VX tPZH tPHZ VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND VY VM outputs enabled outputs disabled outputs enabled SY00002 Waveform 2. 3-State enable and disable times 1995 Nov 10 5 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer 74LVC1284 VCC VIN VOUT D.U.T. PULSE GENERATOR SWITCH POSITION Bn or Yn Outputs VCC 50pF S1 RT TEST SWITCH tPLH tPHL GND VCC GND RL = 500Ω tPLH/PHL = 62Ω for SR test Test Circuit for Bn or Yn Outputs VCC VIN NEGATIVE PULSE VOUT PULSE GENERATOR tW 90% 90% AMP (V) VM VM 10% 10% 0V D.U.T tTHL (tf) RT tTHL (tf) RL CL tTLH (tr) tTLH (tr) POSITIVE PULSE Test Circuit for An Outputs AMP (V) 90% 90% VM VM 10% 10% tW 0V VM = 1.5V Input Pulse Definition DEFINITIONS CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. INPUT PULSE REQUIREMENTS FAMILY RL = Load resistor; see AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators. 74LVC Amplitude Rep. Rate tW tr tf 3.0V 1MHz 500ns 3ns 3ns SY00004 Waveform 5. S1 VCC PULSE GENERATOR VI TEST CIRCUIT 2 x VCC Open GND VCC 500Ω VO D.U.T. RT VCC VI 50pF CL IO 500Ω Test S1 tPLH/tPHL Open t 2.7V VCC tPLZ/tPZL 2 x VCC 2.7V – 3.6V 2.7V tPHZ/tPZH GND D.U.T. IO is measured by forcing VCC/2 on the output. RD can then be calculated using the equation RD = VCC/2 ť IO ť. SY00003 SY00005 Figure 1. Load Circuitry for Bn to An Switching Times 1995 Nov 10 VCC/2 Figure 2. Output Impedance RD 6 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer SO20: plastic small outline package; 20 leads; body width 7.5 mm 1995 Nov 10 7 74LVC1284 SOT163-1 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm 1995 Nov 10 8 74LVC1284 SOT339-1 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1995 Nov 10 9 74LVC1284 SOT360-1 Philips Semiconductors Product specification 3.3V Parallel printer interface transceiver/buffer 74LVC1284 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 9397-750-04523