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INTEGRATED CIRCUITS
CBT6810 10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
Product data Supersedes data of 2000 Jun 19 2002 Dec 13
Philips Semiconductors
Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
FEATURES
DESCRIPTION
The CBT6810 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 CBT6810 is organized as one 10-bit switch with a single enable (OE) input. When OE is low, the switch is on and port A is connected to port B. When OE 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-k resistor. The CBT6810 is characterized for operation from -40 to +85 C.
* 5 switch connection between port A and port B * TTL compatible input and output levels * Undershoot protection included to prevent shoot through level
changes
* Bias voltage pre-charges the outputs to minimize signal distortion
during live insertion
* Latch-up protection exceeds 500 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
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN CIO PARAMETER Propagation delay An to Bn or Bn to An Input capacitance Input/output capacitance CONDITIONS Tamb = 25 C; GND = 0 V CL = 50 pF; VCC = 5 V VI = 0 V or VCC Outputs disabled; VO = 0 V or VCC TYPICAL 250 3.5 9.0 UNIT ps pF pF
ORDERING INFORMATION
PACKAGES 24-Pin Plastic TSSOP 24-Pin Plastic SSOP (QSOP) TEMPERATURE RANGE -40 to +85 C -40 to +85 C ORDER CODE CBT6810PW CBT6810DK DWG NUMBER SOT355-1 SOT556-1
PIN CONFIGURATION
PIN DESCRIPTION
PIN NUMBER 1 SYMBOL OE BIASV A1-A10 B1-B10 GND VCC NAME AND FUNCTION Output enable Precharge bias voltage input A - port side B - port side with active pullup Ground (V) Positive supply voltagem
OE A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 GND
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
Vcc B1 B2 B3 B4
13 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 23, 22, 21, 20, 19, 18, 17, 16, 15, 14 12
B5 B6 B7 B8 B9 B10 BIASV
24
SA00505
2002 Dec 13
2
Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
LOGIC SYMBOL
FUNCTION TABLE
OE L
BIASV
STATE A port = B port A port = Z B port = BIASV
H H
A1
B1
H = High voltage level L = Low voltage level Z = High impedance "off" state
A10
B10
CE
SA00531
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL VCC IIK VI ISW Tstg BIASV JA PARAMETER DC supply voltage DC clamp diode current DC input voltage3 DC continuous channel current Storage temperature range DC Bias voltage range Power dissipation per package Plastic thin shrink small outline package CONDITIONS RATING -0.5 to +7.0 -50 -0.5 to +7.0 128 -65 to 150 -0.5 to 7.0 134 UNIT V mA V mA C V 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 150C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2002 Dec 13
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Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
RECOMMENDED OPERATING CONDITIONS
LIMITS SYMBOL VCC BIASV VIH VIL Tamb DC supply voltage DC supply voltage High-level input voltage (control pin) Low-level Input voltage (control pin) Operating free-air temperature range PARAMETER Min 4.0 1.3 2.0 -- -40 Max 5.5 VCC -- 0.8 +85 V V V V C UNIT
DC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = -40 to +85 C Min VIK II IO ICC ICC CI CO(OFF) ron3 VP IUSP4 Input clamp voltage Input leakage current (control pin) Output bias current (B pins) Quiescent supply current Control pins2 Control pins Terminal capacitance VCC = 4.5 V; II = -18 mA VCC = 5.5 V; VI = GND or 5.5 V VCC = 4.5 V; BiasV = 2.4 V; VO = 0, OE = VCC VCC = 5.5 V; IO = 0, VI = VCC or GND VCC = 5.5 V, one input at 3.4 V, other inputs at VCC or GND VI= 3 V or 0 VO = 3 V or 0; switch off VCC = 4.5 V; VI = 0 V; II = 64 mA On-resistance VCC = 4.5 V; VI = 0 V; II = 30 mA VCC = 4.5 V; VI = 2.4 V; II = -15 mA Pass voltage Undershoot static current protection VIN = VCC = 5.0 V; Iout = -100 A VCC = 5.0 V, BiasV = VCC IB = -5 A, VB 3 V -- -- -- -- -- -- -- -- -- -- 3.4 -- Typ1 -- -- -- -- -- 3.5 9.0 5 5 10 3.6 -10 Max -1.2 5 -0.25 2.5 2.5 -- -- 7 7 15 3.9 -- V mA V A mA mA mA pF pF UNIT
NOTES: 1. All typical values are at VCC = 5 V, Tamb = 25C 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. 4. Force IUSP, measure VB 3 V
2002 Dec 13
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Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
AC CHARACTERISTICS FOR VCC = 5.0 0.5 V RANGE
GND = 0 V; tr = tf 2.5 ns; CL = 50 pF. SYMBOL tpd tPZH tPZL tPHZ tPLZ PARAMETER Propagation delay An to Bn; Bn to An2 3-State output enable time OE to An; OE to Bn; BIASV = GND 3-State output enable time OE to An; OE to Bn; BIASV = 3.0V 3-State output enable time OE to An; OE to Bn; BIASV = GND 3-State output enable time OE to An; OE to Bn; BIASV = 3.0V WAVEFORM 1 2 2 2 2
CBT6810
LIMITS Tamb = -40 to +85C MIN TYP1 MAX 0.25 1.8 2.1 1.7 1.0 3.5 4.2 3.7 5.5 5.3 7.2 6.1 7.3
UNIT ns ns ns ns ns
NOTE: 1. All typical values are measured at Tamb = 25 C and VCC = 5.0 V 2. 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 50pF, when driven by an ideal voltage source (zero output impedance)
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
3V 1.5V INPUT 0V tPLH tPHL VOH 1.5V OUTPUT VOL SA00028 1.5V 1.5V
TEST CIRCUIT AND WAVEFORMS
7V From Output Under Test CL = 50 pF 500 S1 Open GND 500
Load Circuit
TEST tpd tPLZ/tPZL tPHZ/tPZH
S1 open 7V open
Waveform 1. Waveforms Showing the Input (An) to Output (Yn) Propagation Delays
DEFINITIONS Load capacitance includes jig and probe capacitance; CL = see AC CHARACTERISTICS for value.
3V Output Control (Low-level enabling tPZL Output Waveform 1 S1 at 7 V (see Note) tPZH Output Waveform 2 S1 at Open (see Note) 1.5 V 1.5 V 0V 3.5V 1.5 V tPHZ VOH - 0.3V 1.5 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. SA00029
SA00012
tPLZ
NOTES: 1. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50 , tr 2.5 ns, tf 2.5 ns. 2. The outputs are measured one at a time with one transition per measurement.
VOL + 0.3V VOL VOH
Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times
2002 Dec 13
5
Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm
SOT355-1
2002 Dec 13
6
Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
SSOP24: plastic shrink small outline package; 24 leads; body width 3.9 mm; lead pitch 0.635 mm
SOT556-1
2002 Dec 13
7
Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
REVISION HISTORY Rev Date _3 20021213
Description Product data (9397 750 10871); ECN 853-2151 29159 of 06 November 2002. Modifications: * New package release. Product data (9397 750 07214); ECN 853-2151 23905 of 19 June 2000.
_2
20000619
2002 Dec 13
8
Philips Semiconductors
Product data
10-bit bus switch with precharged outputs and Schottky undershoot protection for live insertion
CBT6810
Data sheet status
Level
I
Data sheet status[1]
Objective data
Product status[2] [3]
Development
Definitions
This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN).
II
Preliminary data
Qualification
III
Product data
Production
[1] Please consult the most recently issued data sheet before initiating or completing a design. [2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. [3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
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 60134). 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 in the products--including circuits, standard cells, and/or software--described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). 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.
Contact information
For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825
Koninklijke Philips Electronics N.V. 2002 All rights reserved. Printed in U.S.A. Date of release: 12-02
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
Document order number:
9397 750 10871
Philips Semiconductors
2002 Dec 13 9

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