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| DATA SHEET MOS INTEGRATED CIRCUIT PD4726 RS-232 LINE DRIVER/RECEIVER The PD4726 is a high-voltage silicon gate CMOS line driver/receiver conforming to EIA/TIA-232-E Standards. It contains a DC/DC converter and can operate with a +5 V single power supply. In addition, it is also provided with ancillary functions such as a standby function. This IC is equipped with four driver circuits and seven receiver circuits and can configure a simple RS-232 interface circuit with only four external capacitors. FEATURES * Conforms to EIA/TIA-32-E (old RS-232C) Standards * +5 V single power supply * A standby mode can be set by making the standby pin low to reduce the power dissipation. At this time, the driver outputs go into a high-impedance state. * Two receiver circuits can operate as inverters without a hysteresis width even in the standby mode. The remaining five receiver circuits are fixed to the high level. ORDERING INFORMATION Part Number Package 36-pin plastic SSOP (300 mil) Quality Grade Standard PD4726GS-BAF Please refer to "Quality grade on NEC Semiconductor Devices" (Document number IEI-1209) published by NEC Corporation to know the specification of quality grade on the devices and its recommended applications. Document No. IC-3413 (1st edition) (O.D.No. IC-8923) Date Published March 1997 P Printed in Japan (c) 1994 PD4726 BLOCK DIAGRAM/PIN CONFIGURATION (Top View) +10 V C3 + + 1 2 VDD C1 + C4+ 36 GND 35 C4 - + C4 + C1 +5 V 3 4 5 6 7 DIN1 DIN2 DIN3 DIN4 ROUT1 ROUT2 ROUT3 ROUT4 ROUT5 ROUT6 ROUT7 8 9 10 11 12 13 14 15 16 17 18 VCC C1N.C. GND N.C. To internal circuit To internal circuit 34 C2 VSS 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 STBY GND EN DOUT1 DOUT2 DOUT3 DOUT4 RIN1 RIN2 RIN3 RIN4 RIN5 RIN6 RIN7 -10 V Notes 1. VDD and VSS output internally boosted voltages. Do not connect a load directly to these pins. 2. It is recommended that capacitors having a breakdown voltage of 20 V or higher be used as C1 through C5. Inserting a bypass capacitor of 0.1 to 1 F in between VCC and GND is also recommended. 3. Be sure to connect all the GND pins. Especially, make sure that pin 31 is connected; otherwise, the PD4726 will not operate normally. Be sure to leave the NC pins (pins 5 and 7) open. 4. The pull-up resistors for DIN1 through DIN4 and STBY and the pull-down resistor for EN are active resistors. 2 PD4726 TRUTH TABLE Drivers STBY L H H DIN x L H DOUT Z H L Remarks Standby mode (DC/DC converter stops.) Space level output Mark level output Receivers RIN STBY L L L H H EN R6 - R7 L H H x x x L H L H R1 - R5 x x x R6 - R7 H H L H L R1 - R5 H H H Mark level input Space level input Standby mode 1 (DC/DC converter stops.) Standby mode 2 (DC/DC converter stops. R6 and R7 operate.) ROUT Remarks H : high level L : low level Z : high impedance x : H or L 3 PD4726 ABSOLUTE MAXIMUM RATING (Ta = 25 C) Parameter Supply voltage Driver input voltage Receiver input voltage Control input voltage (STBY, EN) Driver output voltage Receiver output voltage Input current (DIN, STBY, EN) Operating ambient temperature Storage temperature Permissible package power dissipation Symbol VCC DIN RIN VIN Ratings -0.5 to +7.0 -0.5 to VCC + 0.5 -30.0 to +30.0 -0.5 to VCC + 0.5 -25.0 to +25.0 Note 5 Unit V V V V DOUT ROUT IINI Topt. Tstg. PT V V mA C C W -0.5 to VCC + 0.5 20.0 -40 to +85 -55 to +150 0.5 Note 5. Pulse width: 1 ms, duty cycle: 10 % MAX. RECOMMENDED OPERATING CONDITIONS Parameter Supply voltage (VCHA = L) Input voltage, high (DIN) Input voltage, low (DIN) Input voltage, high (STBY, EN) Input voltage, low (STBY, EN) Receiver input voltage Operating ambient temperature External capacitance (nominal value) Symbol VCC VIH VIL VIH VIL RIN Topt. Note 6 MIN. 4.5 2.0 0 2.4 0 -30 -40 1 TYP. 5.0 MAX. 5.5 VCC 0.8 VCC 0.8 +30 +85 4.7 Unit V V V V V V C F Note 6. Use capacitors whose capacitance fluctuation is within 50 % including fluctuations due to temperature and tolerance (effective value: 0.5 to 7.05 F). Use of capacitors with excellent high-frequency characteristics (such as multilayer ceramic capacitors, tantalum capacitors, and aluminum electrolytic capacitors for switching power supply) is recommended. Keep the wiring length between a capacitor and an IC pin as short as possible. 4 PD4726 ELECTRICAL SPECIFICATIONS (CHIP) (Unless otherwise specified, Ta = -40 to +85 C, C1 through C5 = 1 F) Parameter Circuit current Symbol ICC1 Conditions VCC = +5.0 V, no load, RIN pin open, STBY = H VCC = +5.0 V, RL = 3 k (DOUT), DIN = GND, RIN, ROUT pins open, STBY = H VCC = +5.0 V, no load, DIN, RIN pins open, STBY = L, EN = L, Ta = 25 C VCC = +5.0 V, no load, DIN, RIN pins open, STBY = L, EN = L, Circuit current in standby mode (standby mode 2) ICC4 VCC = +5.0 V, no load, DIN, RIN pins open, STBY = L, EN = H, Ta = 25 C VCC = +5.0 V, no load, DIN, RIN pins open, STBY = L, EN = H, Ta = 25 C Input voltage, high VIH STBY, EN pins, VCC = +4.5 to +5.5 V STBY, EN pins, VCC = +4.5 to +5.5 V STBY pin, VCC = +5.5 V, VI = +5.5 V STBY pin, VCC = +5.5 V, VI = 0 V EN pin, VCC = +5.5 V, VI = +5.5 V EN pin, VCC = +5.5 V, VI = 0 V Driver inputs and receiver inputs, VCC = +5.0 V, vs. GND, f = 1 MHz 2.4 9 MIN. TYP. MAX. 12 Unit mA Circuit current ICC2 38 mA Circuit current in standby mode (standby mode 1) ICC3 20 A 15 A 20 9 A 15 A V Input voltage, low VIL 0.8 V Input current, high Input current, low Input current, high Input current, low Input capacitance IIH IIL IIH IIL CIN 1 -40 40 -1 10 A A A A pF Remark TYP. value is a reference value at Ta = 25 C. 5 PD4726 ELECTRICAL SPECIFICATIONS (DRIVERS) (Unless otherwise specified, Ta = -40 to +85 C, VCC = +5.0 V 10 %, C1 through C5 = 1 F) Parameter Input voltage, low Input voltage, high Input current, low Input current, high Output voltage Symbol VIL VIH IIL IIH VDO VCC = +5.0 V, RL = , Ta = 25 C VCC = +5.0 V, RL = 3 k, Ta = Topt. VCC = +4.5 V, RL = 3 k, Ta = Topt. Output short current Slew rate ISC SR VCC = +5.0 V, vs. GND CL = 10 pF, RL = 3 to 7 k CL = 2 500 pF, RL = 3 to 7 k Propagation delay time Note 8 Conditions MIN. TYP. MAX. 0.8 Unit V V 2.0 -40 1.0 9.7 5.5 5.0 40 4.0 4.0 2 30 30 A A V V V mA V/s V/s tPHL tPLH R0 RL = 3 k, CL = 2 500 pF s Output resistance VCC = VDD = VSS = 0 V VOUT = 2 V RL = 3 k, CL = 2500 pF, Note 9 RL = 3 k, CL = 2500 pF, RL = 3 k, CL = 2500 pF, Note 9 Note 10 300 Standby output transition time Standby output transition time Power-ON output transition time tDAZ tDZA tPRA 4 0.5 0.5 10 1 1 s ms ms Remark TYP. value is a reference value at Ta = 25 C. Note 8. Test point VCC DIN 0.8 V 0V 2.0 V tPLH VDO DOUT VDO- SR+ + tPHL +5 V +3 V -3 V +3 V -3 V -5 V SR- 6 PD4726 Note 9. Test point VCC STBY 0.6 V 0V 2.4 V tDAZ VDO+ tDZA +5 V High impedance DOUT VDO- -5 V +5 V -5 V The driver output is undefined during the standby output transition time tDZA. Do not perform communication within the standby output transition time tDZA after the standby mode has been released. Note 10. Test point 5V 4.5 V VCC 0V tPRA VDO+ High impedance DOUT VDO- +5 V -5 V The driver output is undefined during the power-ON output transition time tPRA. Do not perform communication within the power-ON output transition time tPRA on power application. 7 PD4726 ELECTRICAL SPECIFICATIONS (RECEIVERS) (Unless otherwise specified, VCC = 4.5 to 5.5 V, Ta = -40 to +85 C, C1 through C5 = 1 F) Parameter Output voltage, low (STBY = H) Output voltage, high (STBY = H) Output voltage, low (STBY = L) Output voltage, high (STBY = L) Propagation delay time (STBY = H) Propagation delay time (STBY = L, EN = H) Propagation delay time (STBY = L) Input resistance Open voltage across input pins Input threshold voltage (STBY = H) Symbol VOL1 IOUT = 4 mA IOUT = -4 mA IOUT = 4 mA IOUT = -4 mA RIN ROUT, CL =150 pF VCC = +4.5 V, Note 11 RIN ROUT (R6, R7), CL =150 pF VCC = +4.5 V, Note 11 EN ROUT (R6, R7), CL =150 pF VCC = +4.5 V, Note 12 3 VCC - 0.5 0.2 VCC - 0.4 0.5 Conditions MIN. TYP. MAX. 0.4 Unit V VOH1 V VOL2 V VOH2 V tPHL tPLH tPHL tPLH tPHA tPAH RI VIO VIH VIL VH s s 300 ns 0.1 100 5.5 7 0.5 k V V V V VCC = +4.5 to +5.5 V VCC = +4.5 to +5.5 V VCC = +4.5 to +5.5 V (hysteresis width) VCC = +4.5 to +5.5 V, RIN6, RIN7 VCC = +4.5 to +5.5 V, RIN6, RIN7 Note 13 Note 13 Note 14 1.7 0.7 0.5 2.3 1.1 1.2 2.7 1.7 1.8 Input threshold voltage (STBY = L, EN = H) Standby output transition time Standby output transition time Power-ON output transition time VIH VIL tDAH tDHA tPRA 2.7 1.5 1.5 0.2 0.3 0.5 0.7 3 1 1 V V s ms ms Remark TYP. value is a reference value at Ta = 25 C. Note 11. Test point +3 V 2.7 V RIN 0V -3 V 0.7 V tPLH VOH ROUT VOL 2.0 V tPHL 0.8 V 8 PD4726 Note 12. Test point VCC EN 0V 2.4 V 0.6 V tPHA VOH ROUT VOL STBY = L 0.8 V tPAH 2.0 V Note 13. Test point VCC STBY 0.6 V 0V 2.4 V tDAH VOH ROUT VOL 2.0 V tDHA 0.8 V The receiver output is undefined during the standby output transition time tDHA. Do not perform communication within the standby output transition time tDHA after the standby mode has been released. Note 14. Test point 5V 4.5 V VCC 0V tPRA VOH ROUT 0.8 V VOL The receiver output is undefined during the power-ON output transition time tPRA. Do not perform communication within the power-ON output transition time tPRA on power application. 9 PD4726 36 PIN PLASTIC SHRINK SOP (300 mil) 36 19 detail of lead end 1 A 18 55 H I G J F K E C D MM N B L P36GM-80-300B-3 NOTE Each lead centerline is located within 0.10 mm (0.004 inch) of its true position (T.P.) at maximum material condition. ITEM A B C D E F G H I J K L M N MILLIMETERS 15.54 MAX. 0.97 MAX. 0.8 (T.P.) +0.10 0.35 -0.05 INCHES 0.612 MAX. 0.039 MAX. 0.031 (T.P.) 0.014+0.004 -0.003 0.005 0.003 0.071 MAX. 0.061 0.303 0.012 0.220 0.043 0.008+0.004 -0.002 0.024 -0.009 0.004 0.004 +0.008 0.125 0.075 1.8 MAX. 1.55 7.7 0.3 5.6 1.1 0.20 +0.10 -0.05 0.6 0.2 0.10 0.10 10 PD4726 RECOMMENDED SOLDERING CONDITIONS Solder and mount the PD4726 under the following recommended conditions. Consult NEC for conditions other than those recommended. PD4726GS-BAF Soldering method Infrared ray reflow Soldering conditions Peak temperature of package surface: 235 C, Reflow time: Within 30 sec (210 C or higher), Number of reflow process: 2, Exposure limit: None Peak temperature of package surface: 215 C, Reflow time: Within 40 sec (200 C or higher), Number of reflow process: 2, Exposure limit: None Symbol IR35-00-2 Note VPS VP15-00-2 Note Wave soldering Solder temperature: 260 C or lower, Reflow time: Within 10 sec, Number of reflow process: 1, Exposure limit: None Note Pin temperature: 300 C or lower, Time: Within 10 sec, Exposure limit: None Note WS60-00-1 Partial heating Note Exposure limit before soldering after dry-package is opened. Storage condition: 25 C and relative humidity at 65 % or less. Caution Do not use two or more soldering methods in combination (except the partial heating method). REFERENCE Document name Semiconductor Device Mounting Technology Manual Quality grade on NEC Semiconductor Devices NEC Semiconductor Device Reliability/Quality Control system Document No. IEI-1207 IEI-1209 IEI-1212 11 PD4726 No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance. Anti-radioactive design is not implemented in this product. M4 96.5 |
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