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ST26C31
CMOS QUAD TRI-STATE DIFFERENTIAL LINE DRIVER
s s s s
s
s s
s s
TTL INPUT COMPATIBLE TYPICAL PROPAGATION DELAY: 6ns TYPICAL OUTPUT SKEW: 0.5ns OUTPUT WILL NOT LOAD LINE WHEN VCC=0V MEETS THE REQUIREMENTS OF EIA STANDARD RS-422 OPERATION FROM SINGLE 5V SUPPLY 3-STATE OUTPUTS FOR CONNECTION TO SYSTEM BUSES LOW QUIESCENT CURRENT AVAILABLE IN SURFACE MOUNT
DIP
SOP
DESCRIPTION The ST26C31 is a quad differential line driver designed for digital data transmission over balanced lines and meets all the requirements of EIA standard RS-422 while retaining the low power characteristics of CMOS. The ST26C31 accepts TTL or CMOS input levels and translates these to RS-422 output levels. This part uses special outputs circuitry common to all four drivers. All outputs are protected against damage due to electrostatic discharge by diode to VCC and ground. ORDERING CODES
Type ST26C31BN ST26C31BD ST26C31BDR ST26C31BTR Temperature Range -40 -40 -40 -40 to 85 to 85 to 85 to 85 C C C C Package DIP-16 SO-16 (Tube) SO-16 (Tape & Reel) TSSOP16 (Tape & Reel)
TSSOP
Comments 25 parts per tube / 40 tube per box 50 parts per tube / 20 tube per box 2500 parts per reel 2500 parts per reel
December 2002
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ST26C31
PIN CONFIGURATION
PIN DESCRIPTION
PlN N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SYMBOL AIN AOUT AOUT EN BOUT BOUT BIN GND CIN COUT COUT EN DOUT DOUT DIN VCC INPUT A Channel A Output Channel A Output ENABLE Channel B Output Channel B Output INPUT B Ground INPUT C Channel C Output Channel C Output ENABLE Channel D Output Channel D Output INPUT D Supply Voltage NAME AND FUNCTION
TRUTH TABLE
ENABLE L ENABLE H INPUT X L H OUTPUT Z L H OUTPUT Z H L
All other combinations of enable inputs
L = Low Voltage State H = High Logic State X = Don't Care Z = High Impedance
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ST26C31
ABSOLUTE MAXIMUM RATINGS (Note 1, 2)
Symbol VCC VIN VOUT IIK IOUT ICC Tstg Supply Voltage DC Input Voltage DC Output Voltage (High or Low State) Clamp Diode Current DC Output Current per Pin DC VCC or GND Current Storage Temperature Range Parameter Value -0.5 to 7 -0.5 to (VCC + 0.5) -0.5 to 7 20 150 150 -65 to +150 Unit V V V mA mA mA 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. All currents into the device pins are positive; all currents out of the device pins are negative.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VIN VOUT VOUT TA tr, tf Supply Voltage DC Input Voltage DC Output Voltage (High or Low State) DC Output Voltage (VCC = 0V or High Impedance) Operating Temperature Range Maximum Enable Input Rise or Fall Times Parameter Value 4.5 to 5.5 0 to VCC 0 to VCC 0 to 5 -40 to +85 500 Unit V V V V C ns
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ST26C31
ELECTRICAL CHARACTERISTICS (VCC = 5V 10%, unless otherwise specified, See Note 1)
Value Symbol VIH VIL VOH VOL VT VT-VT VOS VOSVOS IIN ICC IOZ ISC IOFF Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Differential Output Voltage Difference in Differential Output Voltage Common Mode Output Voltage Difference in Common Mode Output Voltage Input Current Quiescent Supply Current (Note 2) 3-STATE Output Leakage Current VIN = VIH or VIL, VIN = VIH or VIL, RL = 100 (Note 2) RL = 100 (Note 2) RL = 100 (Note 2) RL = 100 (Note 2) VIN = VCC, GND, VIH or VIL IOUT = 0 A VIN = VCC or GND VIN = 2.4 or 0.5 V (Note 3) VOUT = VCC or GND ENABLE = VIH ENABLE = VIL -30 VCC = 0 V VOUT = 6 V VOUT = -0.25 V 200 0.8 0.5 1.8 IOUT = -20mA IOUT = +20mA 2 2.5 3.4 0.3 3.1 0.4 3 0.4 1 500 2 5 -150 100 -100 0.5 Test Conditions Min. 2 0.8 Typ. Max. V V V V V V V V A A mA A mA A A Unit
Output Short Circuit Current VIN = VCC or GND (Notes 2, 4) Power Off Output Leakage Current (Note 2)
Note 1: Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typical are given for VCC = 5V and Ta = 25C Note 2: See EIA Specification RS422 for exact test conditions. Note 3: Measured per pin input. All other input at VCC or GND. Note 4: This is the current sourced when a high output is shorted to ground. Only one output at time should be shorted.
SWITCHING CHARACTERISTICS (VCC = 5V 10%, tr = tf 6ns, See Note 1)
Value Symbol tPLH tPHL Skew tTLH tTHL tPZH tPZL tPHZ tPLZ CPD CIN Parameter Propagation Delay Input to Output (Note 2) S1 Open S1 Open Test Conditions Min. 2 Typ. 6 0.5 6 11 13 5 7 50 6 Max. 11 2 10 19 21 9 11 ns ns ns ns ns ns ns pF pF Unit
Differential Output Rise and S1 Open Fall Times Output Enable Time Output Enable Time Output Disable Time (Note 3) Output Disable Time (Note 3) Power Dissipation Capacitance (Note 4) Input Capacitance S1 Closed S1 Closed S1 Closed S1 Closed
Note 1: Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typical are given for VCC=5V and Ta = 25C Note 2: Skewis defined as the difference in propagation delays between complementary outputs at the 50% point. Note 3: Output disable time is the delay from the control input being switched to the output transistors tuming off. The actual disable times are less than indicated due to the delay added by RC time constant of the load. Note 4: CPD determines the no load dynamic power consumption, PD = CPD V2CCf = ICCVCC, and the no load dynamic current consumption, PD = CPD VCCf + ICC
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ST26C31
Plastic DIP-16 (0.25) MECHANICAL DATA
mm. DIM. MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.27 8.5 2.54 17.78 7.1 5.1 0.130 0.050 0.51 0.77 0.5 0.25 20 0.335 0.100 0.700 0.280 0.201 1.65 TYP MAX. MIN. 0.020 0.030 0.020 0.010 0.787 0.065 TYP. MAX. inch
P001C
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ST26C31
SO-16 MECHANICAL DATA
DIM. A a1 a2 b b1 C c1 D E e e3 F G L M S 8 3.8 4.6 0.5 9.8 5.8 1.27 8.89 4.0 5.3 1.27 0.62 (max.) 0.149 0.181 0.019 10 6.2 0.35 0.19 0.5 45 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 0.1 mm. MIN. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.004 MIN. inch TYP. MAX. 0.068 0.008 0.064 0.018 0.010
PO13H
6/10
ST26C31
TSSOP16 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 4.9 6.2 4.3 5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 5.1 6.6 4.48 0.002 0.031 0.007 0.004 0.193 0.244 0.169 0.197 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0079 0.201 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
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ST26C31
Tape & Reel SO-16 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.45 10.3 2.1 3.9 7.9 12.8 20.2 60 22.4 6.65 10.5 2.3 4.1 8.1 0.254 0.406 0.082 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.262 0.414 0.090 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch
8/10
ST26C31
Tape & Reel TSSOP16 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.7 5.3 1.6 3.9 7.9 12.8 20.2 60 22.4 6.9 5.5 1.8 4.1 8.1 0.264 0.209 0.063 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.272 0.217 0.071 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch
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ST26C31
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. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com
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