HD26C32A Quadruple Differential Line Drivers With 3 State Outputs REJ03D0293–0200Z (Previous ADE-205-575 (Z)) Rev.2.00 Jul.16.2004 Description The HD26C32A provides differential line receivers which realize low power dissipation by CMOS process. The device has four receivers which meet the requirements of EIA standard RS-422A and RS-423A in a 16 pin package. The enable function is common to all four receivers and offers a choise of active high or active low inputs. Fail safe design ensures that if the inputs are open the outputs will always be high. Features • Low power dissipation with CMOS process • Meets EIA standard RS-422A/423A • Input sensitivity: ±0.2V (In the range of ±7 V of common mode input voltage) • Propagation delay time: 19 ns typ • Input hysteresis width: 60 mV typ • Three state outputs • Differential Inputs are includes fail safe circuit • Power up and power down protection • Pin to pin compatible with HD26LS32/32A • Ordering Information Part Name Package Type Package Abbreviation Package Code Taping Abbreviation (Quantity) HD26C32AP DILP-16 pin (JEITA) DP-16E, -16FV P — HD26C32AFPEL SOP-16 pin (JEITA) FP-16DAV FP EL (2,000 pcs/reel) Note: Please consults the sales office for the above package availability. Rev.2.00, Jul.16.2004, page 1 of 12 HD26C32A Pin Arrangement IN A1 1 16 VCC IN A2 2 15 IN B1 OUT A 3 14 IN B2 Enable 4 13 OUT B OUT C 5 12 Enable IN C2 6 11 OUT D IN C1 7 10 IN D2 GND 8 9 IN D1 (Top view) Function Table Enable Differential Input VID≥ V TH or OPEN H X H VTL < VID < VTH X H L X ? VID≥ V TH X H L X L X X L L H Z H L Z X ? : : : : : Enable Outputs High level Low level High impedance Irrelevant Indeterminate Absolute Maximum Ratings (Ta = 25°C) Item 2 Symbol Ratings Unit Supply Voltage* VCC 7 V Common Mode Input Voltage Differential Input Voltage*3 VCM VDIFF ±14 ±14 V V Enable Input Voltage Output Current VIN IO 7 ±25 V mA Storage Temperature Tstg –65 to +150 °C Notes: 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. 2. All voltage values except for differential input voltage are with respect to network ground terminal. 3. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input. Rev.2.00, Jul.16.2004, page 2 of 12 HD26C32A Recommended Operating Conditions (Ta = –40°C to +85°C) Item Symbol Min Typ Max Unit Supply Voltage Common Mode Input Voltage VCC VCM 4.5 — 5.0 — 5.5 ±7 V V Differential Input Voltage Output Current VDIFF IO — — — — ±7 ±6 V mA Operating Temperature Enable Input Rise / Fall Time Topr tr, tf –40 — — — 85 500 °C ns Note: 1. This item guarantees maximum limit when one input switchies. Waveform: Refer to test circuit of switching characteristics. Logic Diagram IN A2 + IN A1 – OUT A + IN B2 OUT B IN B1 – IN C2 + IN C1 – IN D2 + IN D1 – OUT C OUT D Enable G Enable G Electrical Characteristics (Ta = –40°C to +85°C, VCC = 5 V ± 10%) Item Diffrential Input Threshold Voltage Input Hysteresis Symbol VTH Min Typ Max Unit — — 0.2 V Conditions VCM = –7 to 7 V, VOUT≥ 3.8 V VTL VHYST — — — 60 –0.2 — V mV VCM = –7 to 7 V, VOUT≤ 0.3 V VCM = 0 V Enable Input Voltage VIH VIL 2.0 — — — — 0.8 V V Output Voltage VOH VOL 3.8 — 4.2 0.2 — 0.3 V V VCC = 4.5 V, VDIEF = 1 V, IOUT = –6.0 mA VCC = 5.5 V, VDIEF = –1 V, IOUT = 6.0 mA Output Leak CurrentI IOZ — — 0.5 –0.5 5.0 –5.0 µA µA Enable = 0.8 V, Enable = 2.0 V VOUT = VCC Enable = 0.8 V, Enable = 2.0 V VOUT = GND Input Current IIN — 1.1 1 –0.1* — 1.5 0.6 mA mA VIN = 10 V, Other Input = GND VIN = 3 V, Other Input = GND 0 — — –2.0 –1.1 -2.5 mA mA VIN = –3 V, Other Input = GND VIN = –10 V, Other Input = GND Enable Input Current II — — — — 1.0 –1.0 µA µA VI = VCC VI = GND Input Resistance Supply Current RIN ICC 5.8 6.8 16 10 23 kΩ mA VCM = –7 to 7 V (One Input AC GND) VCC = 5.5 V, VDIEF = 1 V Note: 1. This specification is nonstandard of RS-422A. Rev.2.00, Jul.16.2004, page 3 of 12 HD26C32A Switching Characteristics (Ta = –40°C to +85°C, VCC = 5 V ± 10%) Item Symbol Min Typ Max Unit Conditions Propagation Delay Time tPLH tPHL 7 7 16 16 25 25 ns ns CL = 50 pF, VDIEF = 2.5 V, VCM = 0 V Output Rise / Fall Time tRISE tFALL — 4 4 9 9 ns ns CL = 50 pF, VDIEF = 2.5 V, VCM = 0 V Output Disable Time tLZ tHZ — 13 13 22 22 ns ns CL = 50 pF, RL = 1000 Ω VDIEF = 2.5 V Output Enable Time tZL tZH — 13 13 22 22 ns ns CL = 50 pF, RL = 1000 Ω VDIEF = 2.5 V 1. tPLH, tPHL, tRISE, tFALL Test Circuit Input + Pulse Generater Output – CL = 50 pF *1 *2 2V Wave forms 2.5 V Input + 0V 0V –2.5 V 2.5 V Input – 0V 0V –2.5 V t PLH t PHL 90 % Output 50 % 10 % tr Rev.2.00, Jul.16.2004, page 4 of 12 VOH 90 % 50 % 10 % tf VOL HD26C32A 2. tHZ, tZH Test Circuit + 2.5 V Output – CL = 50 pF RL = 1000 Ω Input *2 Pulse Generater *1 2V *3 Wave forms 3V Enable 1.3 V 1.3 V 0V 3V 1.3 V 1.3 V Enable 0V t ZH Output t HZ 50 % 0.5 V VOH VOL Rev.2.00, Jul.16.2004, page 5 of 12 HD26C32A 3. tLZ, tZL Test circuit VCC RL = 1000 Ω + –2.5 V Output – CL = 50 pF Input Pulse Generator 2V Wave forms 3V Enable 1.3 V 1.3 V 0V 3V 1.3 V 1.3 V Enable 0V t ZL t LZ VOH Output 50 % 0.5 V Notes: VOL 1. The pulse generator has the following characteristics: PRR = 1 MHz, 50 % duty cycle, tr≤ 6 ns, t f≤ 6 ns, Zout = 50 Ω 2. CL includes probe and jig capacitance. 3. To test Enable input, ground Enable input and apply an inverted input waveform. Rev.2.00, Jul.16.2004, page 6 of 12 HD26C32A HD26C32A Line Receiver Applications The HD26C32A is a line receiver that meets the EIA RS-422A and RS-423A conditions. It has a high in-phase input voltage range, both positive and negative, enabling highly reliable transmission to be performed even in noisy environments. Its main features are listed below. • • • • • Operates on a single 5 V power supply. ±0.2 V input sensitivity in in-phase input voltage ±7 V range Three-state output On-chip input fail-safe circuit On-chip power up/down protection circuit As shown by the logic diagram, the enable function is common to all four drivers, and either active-high or active-low input can be selected. Output Voltage VOUT (V) When exchange is carried out using a party line system, it is better to keep the receiver input bias current constituting the driver load small, as this allows more receivers to be connected. Output Voltage vs. Differential Input Voltage 6.0 Ta = 25°C VCC = 5 V 5.0 VCM = +7 V 4.0 VCM = 0 V 3.0 VCM = –7 V 2.0 1.0 0.0 –80 –40 0 40 80 Differential Input Voltage VDIFF (mV) Figure 1 Differential Input Voltage vs. Output Voltage Characteristics Input Current vs. Input Voltage 2.0 Input Current IIN (mA) Ta = 25°C 1.2 C = V 0 VC 0.4 0.0 5 C = 5. V VC –0.4 –1.2 –2.0 –15 9 –3 0 3 9 Input Voltage VIN (V) 15 Figure 2 Input Voltage vs. Input Current Characteristics Rev.2.00, Jul.16.2004, page 7 of 12 HD26C32A VCC R1 Driver R2 Receiver RT R1 R2 Figure 3 Method of Enhancing Fail-Safe Function kΩ Ω = 50 0k 0.4 = R2 R2 =3 0.5 R2 Differential Input Voltage VDIEF (V) Differential Input Voltage vs. R1 0.6 10 VCC Ω 0k R 00 2=3 R2 = 0.3 R1 kΩ ∞ 100Ω Ta = 25°C VCC = 5 V 0.2 R2 VDIFF R1 R2 0.1 0 5 10 15 R1 (kΩ) Figure 4 R1, R2 vs. Differential Input Voltage 1. Unidirectional Transmission (1 : 1 Configuration) Driver B Data Input A D Receiver F RT C E Figure 5 1 : 1 Unidirectional Transmission Rev.2.00, Jul.16.2004, page 8 of 12 Data Output HD26C32A H : 5 µs/div V : 2 V/div Line : 1200 m, Duty : 50% Frequency : 100 kHz, RT : 100 Ω A D GND– GND– E GND– B GND– C F GND– GND– H : 50 ns/div V : 2 V/div Line : 12 m, Duty : 50% Frequency : 10 MHz, RT : 100 Ω A D GND– GND– E GND– B GND– C F GND– GND– Figure 6 Sample Transmission Waveforms Rev.2.00, Jul.16.2004, page 9 of 12 HD26C32A 2. Unidirectional Transmission (1 : n Configuration) Driver Data Input Receiver RT RT Data Output Enable Receiver Data Output Data Output Data Output Figure 7 1:n Unidirectional Transmission With this connection method, n receivers are connected for one driver. In the RS-422A standard, ten receivers can be connected simultaneously for one driver. Conversely, it is also possible to connect one receiver for n drivers. 3. Bidirectional Transmission Driver Data Input/ Output Receiver RT Data Input/ Output RT Enable Enable Receiver Driver Figure 8 Bidirectional Transmission When bidirectional data exchange is performed using a combination of the HD26C31 and HD26C32A, since either high or low output control is possible, using complementary enable inputs for the driver and receiver makes it easy to configure the kind of combination illustrated in figure 8. Extending this combination makes it possible to exchange n-bit data simultaneously, and handle a party line system. Rev.2.00, Jul.16.2004, page 10 of 12 HD26C32A Package Dimensions As of January, 2003 Unit: mm 19.2 20.32 Max 9 6.3 7.4 Max 16 1 8 0.48 ± 0.1 2.54 ± 0.25 2.54 Min 5.06 Max 0.51 Min 1.3 0.89 7.62 + 0.1 0.25 – 0.05 0˚ – 15˚ Package Code JEDEC JEITA Mass (reference value) DP-16E Conforms Conforms 1.05 g Unit: mm 19.2 20.32 Max 9 6.3 7.4 Max 16 1 8 *0.48 ± 0.08 2.54 Min 5.06 Max 2.54 ± 0.25 1.3 0.51 Min 0.89 7.62 *0.25 ± 0.06 0˚ – 15˚ *NI/Pd/AU Plating Rev.2.00, Jul.16.2004, page 11 of 12 Package Code JEDEC JEITA Mass (reference value) DP-16FV Conforms Conforms 1.05 g HD26C32A As of January, 2003 Unit: mm 10.06 10.5 Max 9 1 8 1.27 *0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.20 ± 0.05 2.20 Max 5.5 16 0.20 7.80 +– 0.30 1.15 0 ˚ – 8˚ 0.70 ± 0.20 0.15 0.12 M *Ni/Pd/Au plating Rev.2.00, Jul.16.2004, page 12 of 12 Package Code JEDEC JEITA Mass (reference value) FP-16DAV — Conforms 0.24 g Sales Strategic Planning Div. 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