CBT6800 PHILIPS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 8

Technical content

/C0080 /C0115 /C0111/C0110/C0111 /C0115

1999 Oct 28

10-bit bus switch with precharged outputs for live insertion INTEGRATED CIRCUITS Product specification Supersedes data of 1999 Mar 18

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

21999 Oct 28 853–2182 22598

FEATURES

  • 5 Ω switch connection between two ports
  • TTL compatible input and output levels
  • Outputs are precharged by bias voltage to minimize signal distortion during live insertion
  • 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

DESCRIPTION

The CBT6800 provides ten bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows bi-directional connections to be made while adding near-zero propagation delay. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise. The CBT6800 is organized as one 10-bit switch with a single enable (ON ) input. When ON is low, the switch is on and port A is connected to port B. When ON is high, the switch between port A and port B is open and the B port is precharged to BIASV through the equivalent of a 10 kΩ resistor. The CBT6800 is characterized for operation from –40°C to 85°C. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Tamb = 25°C; GND = 0 V TYPICAL UNIT tPLH tPHL Propagation delay An to Bn or Bn to An C L = 50 pF; VCC = 5 V 250 ps C IN Input capacitance – control pin VI = 0 V or VCC 3.5 pF C OUT Output capacitance – I/O pins Outputs disabled; VO = 0 V or VCC 8.2 pF ICCZ Total supply current Outputs disabled; VCC =5.5 V 1 µA

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER 24-Pin Plastic TSSOP Type I –40°C to +85°C CBT6800 PW DH SOT355–1 PIN CONFIGURATION SA00505 A10 GND OE Vcc B10 BIASV PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION

1 OE Output enable

13 BIASV Precharge bias voltage input

2, 3, 4, 5, 6, 7, 8, 9, 10, 11 A1–A10 A-port I/O pins 18, 17, 16, 15, 14B1–B10 B-port I/O pins – with active pullup

12 GND Ground (V)

24 VCC Positive supply voltage

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

1999 Oct 28 3

OE B1 – B10 FUNCTION L A1 – A10 Connect H BIASV Precharge H = High voltage level L = Low voltage level Z = High impedance “off” state ABSOLUTE MAXIMUM RATINGS 1, 2 SYMBOL PARAMETER CONDITIONS RATING UNIT VCC DC supply voltage –0.5 to +7.0 V IIK DC input diode current –50 mA VI DC input voltage3 –1.2 to +7.0 V ISW DC clamp diode current VO < 0 –50 mA Tstg Storage temperature range –65 to 150 °C BiasV DC voltage range –0.5 to 6.0 V 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 PARAMETER LIMITS UNITSYMBOL PARAMETER Min Max UNIT VCC DC supply voltage 4.5 5.5 V BIASV DC supply voltage 1.3 VCC V VIH High-level input voltage 2.0 V VIL Low-level Input voltage 0.8 V Tamb Operating free-air temperature range –40 +85 °C

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

1999 Oct 28 4

DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = –40°C to +85°C UNIT Min Typ1 Max VIK Input clamp voltage VCC = 4.5 V; II = –18 mA –1.2 V II Input leakage current – OE VCC = 5.5 V; VI = GND or 5.5 V ±5 µA IO Output bias current VCC = 4.5 V; BiasV = 2.4 V; VO = 0 0.25 mA ICC Quiescent supply current VCC = 5.5 V; IO = 0, VI = VCC or GND 50 µA ΔICC Control pins2 VCC = 5.5 V, one input at 3.4 V, other inputs at VCC or GND 2.5 mA C I Control pins VI= 3 V or 0 3.5 pF C O(OFF) Off-state capacitance – I/O pinsVO = 3 V or 0; switch off 8.2 pF VCC = 4.5 V; VI = 0 V; II = 64 mA 5 7 ron3 On-resistance VCC = 4.5 V; VI = 0 V; II = 30 mA 5 7 Ω VCC = 4.5 V; VI = 2.4 V; II = 15 mA 10 15 VP Pass gate voltage VIN = VCC = 5.0 V, IOUT = –100 µA 3.4 3.6 3.9 V NOTES: 1. All typical values are at VCC = 5 V, Tamb = 25°C 2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND 3. 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.

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

1999 Oct 28 5

GND = 0 V; CL = 50 pF; tr = tf ≤ 2.5 ns FROM TO LIMITS SYMBOL PARAMETER FROM (INPUT) TO (OUTPUT) VCC = +5.0 V ±0.5 V UNIT(INPUT) (OUTPUT) Min Max tpd Propagation delay1 A or B B or A .25 ns tPZH TPZL BIASV = GND BIASV = 3 V ON A or B 2.4 3.0 7.7 8.3 ns tPHZ TPLZ BIASV = GND BIASV = 3 V ON A or B 1.0 3.1 5.3 7.8 ns NOTE: 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 VM = 1.5 V, VIN = GND to 3.0 V INPUT 1.5V OUTPUT tPLH tPHL SA00028 1.5V 1.5V 1.5V 3 V 0 V VOH VOL Waveform 1. Waveforms Showing the Input (An) to Output (Yn) Propagation Delays Output Control (Low-level enabling 1.5 V tPZH tPHZ VOH VOL tPZL tPLZ 3.5V VOL + 0.3V VOH – 0.3V SA00029 1.5 V 1.5 V 1.5 V Output Waveform 1 S1 at 7 V (see Note) 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. Output Waveform 2 S1 at Open (see Note) Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times TEST CIRCUIT AND WAVEFORMS C L = 50 pF 500 Ω Load Circuit DEFINITIONS C L = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. TEST S1 tpd open tPLZ /tPZL 7 V tPHZ /tPZH open SA00012 500 ΩFrom Output Under Test 7 V Open GND NOTES: 1. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω , tr ≤ 2.5 ns, tf ≤ 2.5 ns. 2. The outputs are measured one at a time with one transition per measurement.

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

1999 Oct 28 6

TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

1999 Oct 28 7

Philips Semiconductors Product specification CBT680010-bit bus switch with precharged outputs for live insertion

1999 Oct 28 8

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. Philips Semiconductors

811 East Arques Avenue

P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381  Copyright Philips Electronics North America Corporation 1999 All rights reserved. Printed in U.S.A. Date of release: 10-99 Document order number: 9397 750 06552 /C0080 /C0115 /C0111/C0110/C0111 /C0115 Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Production Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. 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. 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. Data sheet status [1] Please consult the most recently issued datasheet before initiating or completing a design.