HD26LS31 HITACHI
Document overview
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Technical content
Quadruple Differential Line Drivers With 3 State Outputs ADE-205-576 (Z) 1st. Edition Dec. 2000
Description
The HD26LS31 features quadruple differential line drivers which satisfy the requirements of EIA standard RS-422A. This device is designed to provide differential signals with high current capability on bus lines. The circuit provides enable input to control all four drivers. The output circuit has active pull up and pull down and is capable of sinking or sourcing 40 mA. Logic Diagram Enable G Enable G
(Top view) GND Enable G
16 VCC
H : High level L : Low level X : Irrelevant Z : High impedance (Off)
Supply Voltage V CC 7.0 V Input Voltage V IN 7.0 V Output Voltage V OUT 5.5 V Power Dissipation P T 1W Storage Temperature Range Topr 0 to +70 °C Lead Temperature Range Tstg –65 to +150 °C Note: 1. 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 Application Terminal Supply Voltage V CC 4.75 5.0 5.25 V VCC Output Current I OH — — –40 mA All Output Output Current I OL — — 40 mA All Output Operating Temperature Topr 0 25 70 — —
Electrical Characteristics (Ta = 0 to +70°C) Item Symbol Min Typ* 1 Max Unit Application Terminal Conditions Input Voltage V IH 2.0 — — V All Inputs VIL — — 0.8 Input Clamp Voltage VIK — — –1.5 V CC = 4.75 V, II = –18 mA Output Voltage V OH 2.5 — — All Outputs V CC = 4.75 V IOH = –20 mA VOH — — 2.4 I OH = –40 mA VOL — — 0.5 I OL = 40 mA Output Current I OZL — — –20 mA V CC = 5.25 V VO = 0.5 V IOZH — — 20 V CC = 5.25 V VO = 2.5 V Input Current I I — — 0.1 mA All Inputs V CC = 5.25 V VI = 7 V IIH ——2 0 mAV I = 2.7 V IIL — — –0.36 mA V I = 0.4 V Short Circuit Output Current IOS *2 –30 — –150 All Outputs V CC = 5.25 V Supply Current I CC —3 2 8 0 V CC VCC = 5.25 V Notes: 1. All typical values are at VCC = 5 V, Ta = 25°C 2. Not more than one output should be shorted at a time and duration of the short circuit should not exceed one second. Switching Characteristics (VCC = 5 V, Ta = 25°C) Item Symbol Min Typ Max Unit Application terminal Test circuit Conditions Propagation Delay Time tPLH — 14 20 ns All Outputs 1 CL = 30 pF tPHL —1 42 0n s Output Enable Time t ZH —2 54 0n s 2 C L = 30 pF, RL = 75 W tZL —3 74 5n s 3 C L = 30 pF, RL = 180 W Output Disable Time t HZ —2 13 0n s 2 C L = 10 pF tLZ —2 33 5n s 3 C L = 10 pF Complementary Output To Output Skew — 1 6 ns 1 C L = 30 pF
Y Pulse Generator PRR = 1MHz Duty Cycle 50% Zout = 50Ω Input G G 4.5 V C = 30 pF L C = 30 pF L Note: 1. C L includes probe and jig capacitance. Waveforms Input 0.3 V 2.7 V 1.3 V 0 V 3 V 1.3 V Output Y OH VOL V tPHL tPLH tPHL 1.5 V 1.5 V 1.5 V 1.5 V VOH VOL Output Z 2.7 V 0.3 V tr tf Skew tPLH Skew
G A Y Z Pulse Generator PRR = 1 MHz Duty Cycle 50% Zout = 50Ω G Input
4.5 V Output
Output 180 Ω 180 Ω 75 Ω CL 75 ΩCL Note: 1. C L includes probe and jig capacitance. Waveforms Enable G 0.3 V 2.7 V 1.5 V 2.7 V 0 V 3 V 1.5 V 0.3 V Enable G Output tZH OHV 1.5 V tHZ 0.5 V S1 Open S1 : Closed 0 V 1.5 V tr tf S1 : Open
G A Y Z Pulse Generator PRR = 1 MHz Duty Cycle 50% Zout = 50Ω G Input 180 Ω 75 ΩCL 75 ΩCL 180 Ω Note: 1. C L includes probe and jig capacitance. Waveforms Enable G 0.3 V 2.7 V 1.5 V 2.7 V 0 V 3 V 1.5 V 0.3 V Enable G Output tZL OLV 1.5 V tLZ 0.5 V S2 : Open 4.5 V 1.5 V tr tf S2 : Closed
1.0 0.5 0.2 0.1 0.05 10 20 50 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k Termination Resistance R T (Ω ) Output Voltage VOH (Y), VOL (Z) (V) VOL (Y) VOH (Z) VCC = 5 V Ta = 25°C Z "L" VOL GND R T VOH Y R T VCC Figure 10 Termination Resistance vs. Output Voltage Characteristic
(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
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