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HD26LS32A
Quadruple Differential Line Receivers With 3 State Outputs
REJ03D0296-0200Z (Previous ADE-205-578 (Z)) Rev.2.00 Jul.16.2004
Description
The HD26LS32A 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.
Features
* Ordering Information
Part Name HD26LS32AP Package Type Package Code P Package Abbreviation -- Taping Abbreviation (Quantity)
DILP-16 pin (JEITA) DP-16E, -16FV
Logic Diagram
1A 1B 2A 2B 3A 3B 4A 4B Enable G Enable G 1Y
2Y
3Y
4Y
Rev.2.00, Jul.16.2004, page 1 of 7
HD26LS32A
Pin Arrangement
1B 1 1A 2 1Y 3 Enable G 4 2Y 5 2A 6 2B 7 GND 8
16 VCC 15 4B 14 4A 13 4Y 12 Enable G 11 3Y 10 3A 9 3B
(Top view)
Function Table
Differential Input A-B VID V TH VTL < VID < VTH VID V TL X H L X ? Z : : : : : High level Low level Immaterial Irrelevant High impedance H X H X H X L Enable G X L X L X L H G H H ? ? L L Z Output Y
Absolute Maximum Ratings
Item
1
Symbol
Ratings
Unit
Supply Voltage VCC* 7.0 V Input Voltage A or B VIN 25 V Differential Input Voltage VID*2 25 V Enable Input Voltage VIN 7 V Output Sink Current Iout 50 mA Continuous Total Dissipation PT 1 W Operating Temperature Topr 0 to +70 C Storage Temperature 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 input. 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.
Rev.2.00, Jul.16.2004, page 2 of 7
HD26LS32A
Recommended Operating Conditions
Item Supply Voltage In Phase Input Voltage Output Current Operating Temperature Symbol VCC VIC IOH IOL Topr 4.75 -- -- -- 0 Min 5.00 -- -- -- -- Typ Max 5.25 7.0 -440 8 70 V V A mA C Unit
Electrical Characteristics (Ta = 0 to +70C)
Item Differential Input High Threshold Voltage Differential Input Low Threshold Voltage Input Hysteresis*2 Enable Input Voltage Enable Input Clamp Voltage Output Voltage Symbol VTH VTL VTH - VTL VIH VIL VIK VOH VOL IOZ Min Typ*1 Max -- -- -- -- 2.0 -- -- 2.7 -- -- -- -- -- -- -- -- -- 12 -15 -- -- -- 50 -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- 0.2 -0.2 -0.2 -- -- 0.8 -1.5 -- 0.4 0.45 20 -20 1.2 -1.7 100 20 -0.36 -- -85 Unit V Conditions VIC = -7 to +7 V VOH = 2.7V, IOH = -440 A VOL = 0.4 V, IOL = 4 mA VOL = 0.45 V, IOL = 8 mA mV V VCC = 4.75 V, IIN = -18 mA VCC = 4.75 V VIL (G) = 0.8 V A VCC = 5.25 V VID = 1 V, IOH = -440 A VID = -1 V, IOL = 4 mA VID = -1 V, IOL = 8 mA VO = 2.4 V VO = 0.4 V
Off State (High Impedance) Output Current Line Input Current Enable Input Current
II II (EN) IIH IIL ri IOS*3
mA A
mA Input Resistance k Short Circuit Output mA Current Supply Current ICC -- 52 70 VCC = 5.25 V, VI = 0 V (All Outputs Disable) Notes: 1. All typical values are at VCC = 5 V, Ta = 25C,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.
VI = 15 V, Other Inputs -10 to +15 V VI = -15 V, Other Inputs -15 to +10 V VI = 5.5 V VI = 2.7 V VI = 0.4 V VIC = -15 to +15 V (Other Inputs AC GND) VCC = 5.25 V
Switching Characteristics (VCC = 5 V, Ta = 25C)
Item Propagation Delay Time Output Enable Time Output Disable Time Symbol tPLH tPHL tZH tZL tHZ tLZ -- -- -- -- -- -- Min 20 22 17 20 21 30 Typ Max 35 35 22 25 30 40 ns ns ns Unit Conditions CL = 15 pF CL = 15 pF CL = 5 pF
Rev.2.00, Jul.16.2004, page 3 of 7
HD26LS32A 1. tPLH, tPHL Test circuit
VCC Input Output 2 k Pulse Generator CL 5 k
2V
Waveforms
2.5 V Input A 0V 0V -2.5 V
2.5 V Input B 0V 0V -2.5 V
t PLH
t PHL VOH
Output
1.3 V
1.3 V VOL
Rev.2.00, Jul.16.2004, page 4 of 7
HD26LS32A 2. tHZ, tZH Test circuit
VCC Output 2 k S1 2.5 V CL Input 5 k
Pulse Generator 2V
Waveforms
3V Enable G 1.3 V 1.3 V 0V
3V Enable G 1.3 V 1.3 V 0V S1 : Open t ZH Output S1 : Closed t HZ 0.5 V VOH 1.4 V 0V
1.3 V
Rev.2.00, Jul.16.2004, page 5 of 7
HD26LS32A 3. tLZ, tZL Test circuit
VCC Output 2 k
-2.5 V CL Input 5 k
Pulse Generator 2V
S2
Waveforms
3V Enable 1.3 V 1.3 V 0V
3V Enable G 1.3 V 1.3 V 0V S2 : Open t ZL Output S2 : Closed t LZ VOH 1.3 V 1.4 V 0.5 V VOL
Notes:
1. The pulse generator has the following characteristics: PRR = 1 MHz, 50% duty cycle, tr 6 ns, t f 6 ns, Zout = 50 . 2. CL 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.
Rev.2.00, Jul.16.2004, page 6 of 7
HD26LS32A
Package Dimensions
As of January, 2003
Unit: mm 19.2 20.32 Max
16
9
6.3 7.4 Max
1
0.89 1.3
8
2.54 Min 5.06 Max
7.62
0.51 Min
2.54 0.25
0.48 0.1
0.25 - 0.05 0 - 15
Package Code JEDEC JEITA Mass (reference value) DP-16E Conforms Conforms 1.05 g
+ 0.1
Unit: mm 19.2 20.32 Max
16
9
6.3 7.4 Max
1
0.89 1.3
8
2.54 Min 5.06 Max
7.62
0.51 Min
2.54 0.25
*0.48 0.08
*0.25 0.06 0 - 15
Package Code JEDEC JEITA Mass (reference value) DP-16FV Conforms Conforms 1.05 g
*NI/Pd/AU Plating
Rev.2.00, Jul.16.2004, page 7 of 7
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Keep safety first in your circuit designs!
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