ST26C32A CMOS QUAD TRI-STATE DIFFERENTIAL LINE RECEIVER ■ ■ ■ ■ ■ ■ ■ ■ CMOS DESIGN FOR LOW POWER ±0.2V SENSITIVITY OVER INPUT COMMON MODE VOLTAGE RANGE TYPICAL PROPAGATION DELAY: 19ns TYPICAL INPUT HYSTERESIS: 60mV INPUT WILL NOT LOAD LINE WHEN VCC=0V MEETS THE REQUIREMENTS OF EIA STANDARD RS-422, RS-423 3-STATE OUTPUTS FOR CONNECTION TO SYSTEM BUSES AVAILABLE IN SURFACE MOUNT DESCRIPTION The ST26C32A is a quad differential line receiver designed to meet the RS-422, RS-423 standards for balanced and unbalanced digital data transmission, while retaining the low power characteristics of CMOS. The ST26C32A has an input sensitivity of 200mV over the common mode input voltage range of ±7V. The ST26C32A features internal pull-up and pull-down resistors which prevent output oscillation on unused channels. The ST26C32A provides an enable and disable function to all four receivers and features 3-STATE output with 6mA source and sink capability. DIP SOP TSSOP ORDERING CODES Type ST26C32ABN ST26C32ABD ST26C32ABDR ST26C32ABTR December 2002 Temperature Range -40 -40 -40 -40 to 85 to 85 to 85 to 85 °C °C °C °C Package Comments DIP-16 SO-16 (Tube) SO-16 (Tape & Reel) TSSOP16 (Tape & Reel) 25 parts per tube / 40 tube per box 50 parts per tube / 20 tube per box 2500 parts per reel 2500 parts per reel 1/10 ST26C32A PIN CONFIGURATION PIN DESCRIPTION PlN N° SYMBOL NAME AND FUNCTION 1 AIN1 INPUT A1 2 AIN2 INPUT A2 3 AOUT Channel A Output 4 5 EN BOUT ENABLE Channel B Output 6 BIN2 INPUT B2 7 BIN1 INPUT B1 8 GND Ground 9 CIN1 INPUT C1 10 CIN2 INPUT C2 11 COUT Channel C Output 12 13 EN DOUT ENABLE Channel D Output 14 DIN2 INPUT D2 15 DIN1 INPUT D1 16 VCC Supply Voltage TRUTH TABLE ENABLE ENABLE INPUT OUTPUT L H X VID ≥ VTH(MAX) VID ≤ VTH(MIN) Z H Open H All other combinations of enable inputs L = Low Voltage State H = High Logic State X = Don’t Care Z = High Impedance 2/10 L ST26C32A ABSOLUTE MAXIMUM RATINGS (Note 1, 2) Symbol Parameter Value Unit VCC Supply Voltage 7 V VCM Input Common Mode Range ± 14 V VDIFF Differential Input Voltage ± 14 V 7 V VIN Enable Input Voltage IOMAX Maximum Current per Output ± 25 mA Tstg Storage Temperature Range -65 to +150 °C Note 1: Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the device should be operated at these limits. The table of electrical characteristics provide conditions for actual device operation. Note 2: Unless otherwise specified, all voltage are referenced to ground. RECOMMENDED OPERATING CONDITIONS Symbol Value Unit Supply Voltage 4.5 to 5.5 V TA Operating Temperature Range -40 to +85 °C tr, tf Maximum Enable Input Rise or Fall Times 500 ns VCC Parameter ELECTRICAL CHARACTERISTICS (VCC = 5V ± 10%, unless otherwise specified, See Note 1) Value Symbol VTH Parameter RIN Minimum Differential Input Voltage Input Resistance IIN Input Current Test Conditions VOUT = VOH or VOL, -7V < VCM < 7V mV 5 6.8 10 KΩ mA 1.1 1.5 Other Input = GND -2 -2.5 IOUT = -6mA VDIFF = -1V IOUT = 6mA VIH Minimum Enable High Input Level Voltage Minimum Enable Low Input Level Voltage 3-STATE Output Leakage VOUT = VCC or GND Current ENABLE = VIL ENABLE = VIH VHYST 200 Other Input = GND VDIFF = 1V ICC 35 VIN = 10V Low Level Output Voltage Maximum Enable Input Current Quiescent Power Supply Current Input Hysteresis -200 VIN = -10V High Level Output Voltage II Max. Other Input = GND VOL IOZ Typ. VIN = -7V, 7V VOH VIL Unit Min. 3.8 4.2 0.2 V 0.3 2 V V ±0.5 VIN = VCC or GND VCC = Max, V(DIFF) = 1V 16 VCM = 0V 60 0.8 V ±5 µA ±1 µA 23 mA mV Note 1: Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typical are given for VCC = 5V and T a = 25°C 3/10 ST26C32A SWITCHING CHARACTERISTICS (VCC = 5V ± 10%, See Note 1) Value Symbol Parameter Test Conditions Unit Min. Typ. Max. tPLH tPHL Propagation Delay Input to Output CL = 50pF VCM = 0V VDIFF = 2.5V 19 30 ns tRISE tFALL Output Rise and Fall Times CL = 50pF VCM = 0V VDIFF = 2.5V 4 9 ns tPZH tPZL Propagation Enable Time to CL = 50pF Output RL = 1000Ω VDIFF = 2.5V 13 23 ns tPHZ tPLZ Propagation Disable Time to Output CL = 50pF RL = 1000Ω VDIFF = 2.5V 13 22 ns Data Rate CL = 50pF VDIFF = 2.5V All Outputs Loaded and Switching DR 10 20 Note 1: Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typical are given for VCC=5V and Ta = 25°C. 4/10 Mbits/s ST26C32A Plastic DIP-16 (0.25) MECHANICAL DATA mm. inch DIM. MIN. a1 0.51 B 0.77 TYP MAX. MIN. TYP. MAX. 0.020 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 F 7.1 0.280 I 5.1 0.201 L Z 3.3 0.130 1.27 0.050 P001C 5/10 ST26C32A SO-16 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.004 0.008 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45˚ (typ.) D 9.8 10 0.385 0.393 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.62 8 0.024 ˚ (max.) PO13H 6/10 ST26C32A TSSOP16 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0079 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0˚ L 0.45 A 0.60 0.0256 BSC 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.030 A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080338D 7/10 ST26C32A Tape & Reel SO-16 MECHANICAL DATA mm. inch DIM. MIN. A MAX. MIN. 330 13.2 TYP. MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 8/10 TYP 0.504 22.4 0.519 0.882 Ao 6.45 6.65 0.254 0.262 Bo 10.3 10.5 0.406 0.414 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 ST26C32A Tape & Reel TSSOP16 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 22.4 0.519 0.882 Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 9/10 ST26C32A Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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