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INTEGRATED CIRCUITS
74LVC1284 3.3V Parallel printer interface transceiver/buffer
Product specification IC24 Low Voltage Handbook 1995 Nov 10
Philips Semiconductors
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
FEATURES
* Asynchronous operation * 4-Bit transceivers * 3 additional buffer/driver lines * TTL compatible inputs * ESD protection exceeds 1000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTION
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. 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.
* Input Hysteresis * Low Noise Operation * Center Pin VCC & GND * IEEE 1284 Compliant Level 1 & 2 * Overvoltage Protection on B side
QUICK REFERENCE DATA
SYMBOL RD SR ICC VHYS tPLH/tPHL A -B/Y PARAMETER B/Y Side output resistance B/Y Side slew rate Total static current Input hysteresis Propagation delay to the B/Y side outputs
CONDITIONS Tamb = 25C; GND = 0V VCC = 3.3V; VO = 1.65V "0.2V (See Figure 2) RL = 62; CL = 50pF (See Waveform 4) VI = VCC/GND; IO = 0 VCC= 3.3V VCC = 3.3V
TYPICAL 45 0.2 5 0.4 12.6/12.4
UNIT V/ns A V ns
ORDERING INFORMATION
PACKAGES 20-pin plastic SO 20-pin plastic SSOP Type II 20-pin plastic TSSOP Type I TEMPERATURE RANGE 0C to +70C 0C to +70C 0C to +70C ORDER CODE 7LVC1284 D 74LVC1284 DB 74LVC1284 PW DRAWING NUMBER SOT163-1 SOT339-1 SOT360-1
PIN CONFIGURATION
A1 1 A2 A3 A4 GND GND A5 A6 A7 2 3 4 5 6 7 8 9 20 B1 19 B2 18 B3 17 B4 16 VCC 15 VCC 14 Y5 13 Y6 12 Y7 11 HD
LOGIC SYMBOL
A1 A B B1
A2
A
B
B2
A3
A
B
B3
A4
A
B
B4
DIR 10
A5 A6 A7 DIR
A A A
Y Y Y
Y5 Y6 Y7 HD
SK00001
SK00009
1995 Nov 10
2
853-1819 16000
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
PIN DESCRIPTION
PIN NUMBER 1,2,3,4 20,19,18,17 7,8,9 14,13,12 10 11 5,6 15,16 SYMBOL A1 - A4 B1 - B4 A5 - A7 Y5 - Y7 DIR HD GND VCC FUNCTION Data inputs/outputs IEEE 1284 Std. outputs/inputs Data inputs IEEE 1284 Std. outputs Direction selection B/Y-side high drive enable/disable Ground (0V) Positive supply voltage
FUNCTION TABLE
INPUTS DIR L L L L H H H H HD L L H H L L H H A5-7 L H L H L H L H OUTPUTS Y5-7 L Z L H L Z L H INPUTS/OUTPUTS A1-4 A=B A=B A=B A=B Inputs Low Inputs High Inputs Inputs B1-4 Inputs Inputs Inputs Inputs Outputs Low Outputs Z B=A B=A
H = High Voltage L = Low Voltage Z = High Impedance, Off-State
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL VCC IIK IOK VIN VOUT B/YDC VOUT B/Y (tr) VOUT A side IO Tstg ICC/IGND PARAMETER ESD Immunity, per Mil Std 883C method 3015 DC supply voltage DC input diode current DC output diode current DC input voltage3 DC output voltage on B/Y side3 40ns transient Outputs in High or Low state Transient output voltage on B/Y side4 DC output voltage on A side DC output current Storage temperature range Continuous current through VCC or GND VI < 0 VO < 0 CONDITIONS RATING "2 -0.5 to +4.6 "20 "50 -0.5 to +5.5 -0.5 to +5.5 -2 to +7 -0.5 to VCC +0.5 "50 -60 to +150 "200 UNIT kV V mA mA V V V V mA C mA
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. 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 VOUT VOUT IOH IOL Tamb DC supply voltage Input voltage B/Y output voltage A side output voltage B/Y side output current High B/Y side output current Low Operating free-air temperature range 0 PARAMETER LIMITS MIN 3.0 0 -0.5 0 MAX 3.6 VCC 5.5 VCC -14 14 +70 UNIT V V V V mA mA C
1995 Nov 10
3
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
DC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS MIN VOH High level High-level out ut voltage output An Bn or Yn Low level Low-level output voltage An Bn or Yn VIH VIL VHYS RD II IIHZ/IILZ IOFF IOZH IOZL IIH+IOZH IIL+IOZL ICC High-level input voltage Low-level input voltage Input Hysteresis B/Y side Output Impedance Input leakage current (A5-A7 DIR, HD) Input current for common I/O pins B/Y Side Power-off leakage current 3-State output High current Yn 3-State output Low current Yn current (A1 - A4, Bn) current (A1 - A4, Bn) Quiescent Supply Current VCC = Min to Max; IOH = -50A VCC = 3.0V; IOH = -4mA VCC = 3.0V; IOH = 14mA VCC = Min to Max; IOL = 50A; VI = VIL or VIH VCC = 3.0V; IOL = 4mA; VI = VIL or VIH VCC = 3.0V; IOL = -14mA; VI = VIL or VIH VCC = Min to Max VCC = Min to Max VCC = 3.3V See Figure 2 VCC = 3.6V; VO = VCC or GND; Not for I/O pins VCC = 3.6V;VI = 5.5V or GND VCC = 0.0V; VO = 0 to 5.5V VCC = 3.6V; VO = VCC; VI = VIL or VIH VCC = 3.6V; VO = GND; VI = VIL or VIH VCC = 3.6V; VI/O = VCC VCC = 3.6V; VI/O = GND VCC = 3.6V; IO = 0; VI = GND or VCC 5 "0.1 38 2.0 0.4 45 53 1.0 "15 10 5 -5 5 -5 10 100 20 -20 25 -25 50 VCC-0.2 2.4 2.2 2.4 0.2 0.4 0.8 0.8 2.0 0.3 35 55 5.0 V A A A A A A A A Tamb = 25C TYP VCC MAX Tamb = 0C to +70C MIN VCC-0.2 2.4 2.1 0.2 0.4 0.9 0.8 MAX V V V V V V UNIT
VOL
AC CHARACTERISTICS
GND = 0V, tR = tF = 3.0ns, CL = 50pF, RL = 500 LIMITS SYMBOL PARAMETER WAVEFORM MIN SR tPLH tPHL tPLH tPHL tPZH tPHZ tPZL tPLZ tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ B-Side Slew Rate Propagation delay A toY or A to B Propagation delay B to A Output enable/disable time to/from High level HD to Y or HD to B Output enable/disable time to/from Low level A to Y or A to B Output enable time from DIR to B Output disable time from DIR to B Output enable time from DIR to A Output disable from DIR to A 4 5 1 2 2 2 2 2 2 0.05 6.0 6.0 1.5 1.5 4.0 2.0 5.0 1.5 8.0 8.0 5.0 6.0 3.5 4.0 2.5 2.5 Tamb = 25C VCC = 3.3V TYP 0.2 12.6 12.4 5.5 5.6 12.0 6.5 12.7 5.0 12.3 12.7 8.9 9.1 6.9 8.6 3.7 3.7 MAX 0.35 18.0 18.0 7.9 7.6 16.0 9.1 16.3 7.1 18.0 18.0 12.5 12.0 13.0 14.0 5.5 5.0 Tamb = 0 to + 70C VCC = Min to Max MIN 0.05 5.0 5.0 1.5 1.5 4.0 2.0 5.0 1.5 4.0 4.0 2.0 2.0 3.0 3.0 2.0 2.0 MAX 0.4 19.5 20.0 9.5 9.0 20.0 11.0 20.0 9.0 20.0 20.0 14.5 14.0 14.5 16.0 6.0 5.5 V/ns ns ns ns ns ns ns ns ns UNIT
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 INPUTS
GND
2.4V INPUT 1.4V 1.4V 0.4V
VM
tPHL VOH OUTPUTS VOL VM
tPLH
tPLH OUTPUT
tPHL VOUT 1.4V VOUT -1.4V
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 tPLZ DIR to B VM OUTPUT HD to B VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL tPHZ VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND outputs enabled VY VM outputs disabled outputs enabled 0.4V t1 t2 VM t1 t2 tPZL INPUT 0.4V
0.9V
2.4V 1.9V
SY00007
VM VX tPZH
Waveform 4. Slew Rate Waveforms Voltage Waveforms (Input pulse rise and fall time are 3ns, 150ns t pulse width t10 s, 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.
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 PULSE GENERATOR RT
D.U.T.
VOUT
50pF
VCC S1 GND
SWITCH POSITION Bn or Yn Outputs TEST tPLH tPHL SWITCH GND VCC
RL = 500 tPLH/PHL
= 62 for SR test
Test Circuit for Bn or Yn Outputs
VCC 90% NEGATIVE PULSE VM 10% tTHL (tf) RT CL RL tTLH (tr) 90% 90% VM 10% tW POSITIVE PULSE 10% tTLH (tr) tW VM 10% 90%
AMP (V)
VIN PULSE GENERATOR D.U.T
VOUT
0V
tTHL (tf)
AMP (V)
Test Circuit for An Outputs
VM
0V
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. RL = Load resistor; see AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators. FAMILY
VM = 1.5V Input Pulse Definition
INPUT PULSE REQUIREMENTS Amplitude 74LVC 3.0V Rep. Rate 1MHz tW 500ns tr 3ns tf 3ns
SY00004
Waveform 5.
VCC
S1
TEST CIRCUIT
2 x VCC Open GND VCC
PULSE GENERATOR
VI D.U.T. RT
VO
500
CL
50pF
IO 500 D.U.T. VCC/2
Test VCC t 2.7V 2.7V - 3.6V VI VCC 2.7V tPLH/tPHL tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND IO is measured by forcing VCC/2 on the output. RD can then be calculated using the equation RD = VCC/2 IO .
SY00003
SY00005
Figure 1. Load Circuitry for Bn to An Switching Times
Figure 2. Output Impedance RD
1995 Nov 10
6
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1995 Nov 10
7
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
1995 Nov 10
8
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
1995 Nov 10
9
Philips Semiconductors
Product specification
3.3V Parallel printer interface transceiver/buffer
74LVC1284
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 9397-750-04523
Philips Semiconductors
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