INTEGRATED CIRCUITS CBT6832 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion Product specification 2000 Jul 18 Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion FEATURES CBT6832 PIN CONFIGURATION • 5 Ω typical ron • Pull-up on B ports • Undershoot protection on A port only: –1.5 V • Near zero propagation delay • Controlled enable rate • VCC operating range: +4.5 V to +5.5 V • > 100 MHz bandwidth (or clock rate) at 20 pF load capacitance • 56-pin TSSOP package • Bias voltage pre-charges the B output when the channel is disabled • Latch-up protection exceeds 100 mA per JESD78 • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 APPLICATION • Provides PCI hot-plugging 1B1 1 56 1A 2B1 2 55 1B2 2A 3 54 2B2 3B1 4 53 3A 4B1 5 52 3B2 4A 6 51 4B2 5B1 7 50 5A 6B1 8 49 5B2 6A 9 48 6B2 7B1 10 47 7A 8B1 11 46 7B2 8A 12 45 8B2 GND 13 44 GND VCC 14 43 VCC 9B1 15 42 9A 10B1 16 41 9B2 10A 17 40 10B2 11B1 18 DESCRIPTION The CBT6832 is a 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky protection for live insertion. Advantages of the CBT6832 include a propagation delay of 250 ps, resulting from 5 Ω channel resistance, and low I/O capacitance. A port demultiplexes to either 1B and 2B, or to both. The switch is bi-directional. 39 11A 12B1 19 38 11B2 12A 20 37 12B2 13B1 21 36 13A 14B1 22 35 13B2 14A 23 34 14B2 15B1 24 33 15A 16B1 25 32 15B2 16A 26 31 16B2 VBIAS1 27 30 VBIAS2 SEL1 28 29 SEL2 SW00478 QUICK REFERENCE DATA SYMBOL CONDITIONS Tamb = 25°C; GND = 0 V PARAMETER TYPICAL UNIT tPLH tPHL Propagation delay An to Bn or Bn to An CL = 50 pF; VCC = 5 V 0.25 ns CIN Input capacitance VI = 0 V or VCC 4.5 pF COUT B B capacitance Outputs disabled; VO = 0 V 8 pF COUT A A capacitance Outputs disabled; VO = 0 V 13 pF C on 1 One channel on capacitance One B enabled; VO = 0 V 21 pF C on 2 Both channels on capacitance Both B channels enabled; VO = 0 V 34 pF ORDERING INFORMATION PACKAGES 56-Pin Plastic TSSOP Type II 2000 Jul 18 TEMPERATURE RANGE ORDER CODE DWG NUMBER 0°C to +70°C CBT6832 DGG SOT364-1 2 853-2204 24151 Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion PIN DESCRIPTION PIN NUMBER CBT6832 LOGIC DIAGRAM SYMBOL NAME AND FUNCTION VBIAS1 3, 6, 9, 12, 17, 20, 23, 26, 33, 36, 39, 42, 47, 50, 53, 56 1A1–16A1 Inputs PULLUP 1A 1, 2, 4, 5, 7, 8, 10, 11, 15, 16, 18, 19, 21, 22, 24, 25 1B1–16B1 31, 32, 34, 35, 37, 38, 40, 41, 45, 46, 48, 49, 51, 52, 54, 55 1B2–16B2 27, 30 VBIAS1, VBIAS2 1B1 VBIAS2 Outputs PULLUP 1B2 VBIAS1 Outputs PULLUP Precharge bias voltage inputs 16A 28, 29 SEL1, SEL2 13, 44 GND Ground (0 V) 14, 43 VCC Positive supply voltage 16B1 VBIAS2 Select-control inputs PULLUP 16B2 FUNCTION TABLE SEL1 SEL1 SEL2 FUNCTION L H nA to nB1 H L nA to nB2 L L nA to nB1 and nB2 H H nB1, nB2 = VBIAS SEL2 SV01802 ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL VCC PARAMETER CONDITIONS RATING DC supply voltage IIK DC input diode current VI DC input voltage3 VI < 0 UNIT –0.5 to +7.0 V –50 mA –0.5 to +7.0 V VOUT DC output voltage3 output in Off or High state –0.5 to +7.0 V IOUT DC output current output in Low state 120 mA Tstg Storage temperature range –65 to +150 °C ΘJA Power dissipation 95 °C/W NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. RECOMMENDED OPERATING CONDITIONS SYMBOL LIMITS PARAMETER MIN MAX 5.5 VCC DC supply voltage 4.5 VIH High-level input voltage 2.0 VIL Low-level Input voltage Tamb 2000 Jul 18 Operating free-air temperature range 0 3 UNIT V V 0.8 V +70 °C Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion CBT6832 DC ELECTRICAL CHARACTERISTICS Over operating temperature range Tamb = 0°C to +70°C; VCC = 5 V ±10%; VBIAS = 1.3 V to VCC, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS LIMITS MIN TYP1 MAX UNIT VIH Input HIGH voltage Guaranteed logic HIGH level 2.0 VIL Input LOW voltage Guaranteed logic LOW level –0.5 0.8 V IIH Input HIGH current VCC = 5.5 V, VIN = VCC ±5 µA IIL Input LOW current VCC = 5.5 V, VIN = GND ±5 µA IOZH High impedance output current A = 0 V or VCC MAX, VBIAS1 = VBIAS2 = VCC MAX ±1 µA IOZL Low impedance output current B = 0 V or VCC MAX, VBIAS1 = VBIAS2 = VCC MAX –2 mA VIK Input clamp voltage VCC = 4.5 V; II = –18 mA ron Switch on resistance2 V –0.2 –1.2 V VCC = 4.5 V; VI = 0 V; II = 48 mA 5 8 Ω VCC = 4.5 V; VI = 2.4 V; II = –15 mA 10 15 Ω Capacitance3 (Tamb = +25°C; f = 1 MHz) Input capacitance VI = 0 V 4.5 pF COFF B CIN B capacitance, switch off VI = 0 V 8 pF COFF A A capacitance, switch off VI = 0 V 13 pF CON 1 One B channel on capacitance VI = 0 V 21 pF CON 2 Both B channels on capacitance VI = 0 V 34 pF Power supply ICC ∆ICC Quiescent supply current VCC = 5.5 V; VI = VCC or GND 200 µA Additional supply current per input pin5 VCC = 5.5 V, one input at 3.4 V, other inputs at VCC or GND 2.5 mA NOTES: 1. All typical values are at VCC = 5 V, Tamb = +25°C ambient and maximum loading. 2. Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined by the lowest voltage of the two (A or B) terminals. 3. These parameters are determined by device characterization, but is not production tested. 4. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 5. Per TTL driven input (VI = 3.4 V, control inputs only); A and B pins do not contribute to ICC. 6. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. this parameter is not tested, but is guaranteed by design. 2000 Jul 18 4 Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion CBT6832 AC CHARACTERISTICS VCC = 5.0 V ±0.5 V; GND = 0 V; CL = 50 pF, RL = 500 Ω SYMBOL PARAMETER tPLH tPHL Propagation delay1 A to B tPZH tPZL Bus enable time SEL to A, B LIMITS TEST CONDITIONS MIN TYP MAX 0.25 UNIT ns 1 1 7.0 6.0 ns tPHZ Bus disable time 1 7.0 ns tPLZ SEL to A, B 1 6.5 NOTES: 1. This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical on-state resistance of the switch and a load capacitance of 50 pF, when driven by an ideal voltage source (zero output impedance). AC WAVEFORMS TEST CIRCUIT AND WAVEFORMS VM = 1.5 V, VIN = GND to 3.0 V 7V 3V 1.5V 1.5V 500 Ω From Output Under Test S1 Open GND INPUT 500 Ω CL = 50 pF 0V tPHL tPLH Load Circuit VOH 1.5V 1.5V OUTPUT VOL SA00028 Waveform 1. Input (An) to Output (Bn) Propagation Delays 1.5 V 1.5 V Output Waveform 2 S1 at Open (see Note) 3.5V 1.5 V VOL + 0.3V VOL tPHZ VOH VOH – 0.3V 1.2 V 0V Note: Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. SA00543 Waveform 2. 3-State Output Enable and Disable Times 2000 Jul 18 open tPLZ/tPZL 7V tPHZ/tPZH open SA00012 0V tPLZ tPZL Output Waveform 1 S1 at 7 V (see Note) tPZH S1 tpd DEFINITIONS Load capacitance includes jig and probe capacitance; CL = see AC CHARACTERISTICS for value. 3V Output Control (Low-level enabling TEST 5 Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1 mm 2000 Jul 18 6 CBT6832 SOT364-1 Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion NOTES 2000 Jul 18 7 CBT6832 Philips Semiconductors Product specification 16-bit 1-of-2 multiplexer/demultiplexer with precharged outputs and Schottky undershoot protection for live insertion CBT6832 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product specification Production This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. [1] Please consult the most recently issued datasheet before initiating or completing a design. Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Copyright Philips Electronics North America Corporation 2000 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 Date of release: 07-00 Document order number: 2000 Jul 18 8 9397-750 07335