HD26LS32 HITACHI

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Technical content

Quadruple Differential Line Receivers With 3 State Outputs ADE-205-577 (Z) 1st. Edition Dec. 2000

Description

The HD26LS32 features quadruple line receivers designed to meet the specs of EIA standard RS-422A and RS-423. This device operates from a single 5 V power supply. The enable function is common to all four receivers and offers a choice of active high or active low input. Fail safe design ensures that if the inputs are open, the outputs will always be high. Logic Diagram Enable G Enable G

(Top view) GND Enable G

16 VCC

Differential Input Enable Output A – B G G Y VID ‡ VTH HXH XLH VTL < VID < VTH HX? XL? VID £ VTL HXL XLL XL H Z H : High level L : Low level X : Immaterial ? : Irrelevant Z : High impedance

Supply Voltage V CC *1 7.0 V In Phase Input Voltage V IC –25 V Differential Input Voltage V ID*2 –25 V Enable Input Voltage V IN 7V Output Sink Current Iout 50 mA Continuous Total Dissipation P T 1W Operating Temperature Range Topr 0 to +70 °C Storage Temperature Range Tstg –65 to 150 °C Notes: 1. All voltage values except for differential input voltage are with respect to network ground terminal. 2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting onput. 3. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Symbol Min Typ Max Unit Supply Voltage V CC 4.75 5.00 5.25 V In Phase Input Voltage V IC —— –7.0 V Output Current I OH — — –440 mA IOL ——8 m A Operating Temperature Topr 0 — 70 °C

Electrical Characteristics (Ta = 0 to +70°C) Item Symbol Min Typ* 1 Max Unit Conditions Differential Input High Threshold Voltage VTH — — 0.2 V V IC = –7 to +7 V VOH = 2.7 V, IOH = –440 mA Differential Input Low VTL — — –0.2 V OL = 0.4 V, IOL = 4 mA Threshold Voltage — — –0.2 V OL = 0.45 V, IOL = 8 mA Input Hysteresis*2 V TH – VTL —3 0—m V Enable Input Voltage VIH 2.0 — — V VIL — — 0.8 Enable Input Clamp Voltage VIK — — 1.5 V CC = 4.75 V, IIN = –18 mA Output Voltage V OH 2.7 — — V CC = 4.75 V V ID = 1 V, IOH = –440 mA VOL — — 0.4 V IL (G) = 0.8 V VID = –1 V, IOL = 4 mA — — 0.45 V ID = –1 V, IOL = 8 mA Off State (High I OZ ——2 0 mAV CC = 5.25 V V O = 2.4 V Impedance) Output Current Line Input Current I I — 2.3 2.8 mA V I = 15 V, Other Inputs –10 to +15 V VI = –15 V, Other Inputs –15 to +10 V Enable Input Current II (EN) — — 100 mAV I = 5.5 V IIH ——2 0 V I = 2.7 V IIL — — –0.36 mA V I = 0.4 V Input Resistance ri 6 9.8 — k W VIC = –15 to +15 V (Other Inputs AC GND) Short Circuit Output Current IOS *3 –15 — –85 mA V CC = 5.25 V Supply Current I CC —5 27 0 V CC = 5.25 V, VI = 0 V (All Outputs Disable) Notes: 1. All typical values are at VCC = 5 V, Ta = 25°C,VIC = 0. 2. Hysteresis is the differential between the positive going input threshold voltage and the negative going input threshold voltage. 3. Not more than one output should be shorted at a time. Switching Characteristics (VCC = 5 V, Ta = 25°C) TItem Symbol Min typ Max Unit Conditions Propagation Delay Time t PLH , tPHL —1 72 5n sC L = 15 pF Output Enable Time t ZH , tZL —1 52 2 Output Disable Time t HZ —1 52 2 C L = 5 pF tLZ —2 03 0

  1. tPLH , tPHL Test circuit Pulse Generator Input C L Output Ω2 k VCC Ω5 k 2 V Waveforms Input A 0 V 0 V

0 V 0 V

V 1.3 V 2.5 V –2.5 V 2.5 V –2.5 V tPHL 1.3 V Input B Output

  1. tHZ , tZH Test circuit Input Pulse Generator 2.5 V 2 V C L Output Ω2 k VCC Ω5 k Waveforms Enable G 1.3 V 1.3 V 1.3 V 1.3 V tZH OHV 1.3 V 3 V 0 V 3 V 0 V tHZ

0.5 VOutput

S1 : Open 0 V 1.4 V S1 : Closed

  1. tLZ , tZL Test circuit Input Pulse Generator –2.5 V 2 V C L Output Ω2 k VCC Ω5 k Waveforms Enable 1.3 V 1.3 V 1.3 V 1.3 V tZL OH VOL V 1.3 V 3 V 0 V 3 V 0 V tLZ 0.5 V Output Enable G S2 : Open S2 : Closed 1.4 V Notes: 1. The pulse generator has the following characteristics : PRR = 1 MHz, 50 % duty cycle, tr £ 15 ns, tf £ 6 ns, Zout = 50 W . 2. C L includes probe and jig capacitance. 3. All diodes are 1S2074 (H) 4. To test G input,ground G input and apply an inverted input waveform.

(reference value) DP-16 Conforms Conforms 1.07 g Unit: mm 6.30 19.20 16 9 1.3

20.00 Max

7.40 Max

7.62 0.25 + 0.13

0.51 Min

2.54 Min5.06 Max 0° – 15°

1.11 Max

(reference value) FP-16DA Conforms 0.24 g Unit: mm *Dimension including the plating thickness Base material dimension *0.22 – 0.05 *0.42 – 0.08 0.12 0.15 M

2.20 Max

5.5 10.06

0.80 Max

10.5 Max

+ 0.20 – 0.307.80 0.70 – 0.20 0° – 8° 0.10 – 0.10 1.15 1.27 0.40 – 0.06 0.20 – 0.04

  1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi’s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products. Hitachi, Ltd. Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109 Copyright  Hitachi, Ltd., 2000. All rights reserved. Printed in Japan. Hitachi Asia Ltd. Hitachi Tower

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