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CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting preliminary data 2002 sep 09 integrated circuits
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2 2002 sep 09 features ? 5 w switch connection between two ports ? ttl-compatible input levels ? designed to be used in level shifting applications ? minimal propagation delay through the switch ? 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 description the CBTD3257 is a quad 1-of-2 high-speed ttl-compatible multiplexer/demultiplexer. the low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. output enable (oe ) and select-control (s) inputs select the appropriate b1 and b2 outputs for the a-input data. internal diode allows voltage level shifting from 5 v inputs to 3.3 v outputs. the CBTD3257 is characterized for operation from 40 to +85 c. pin configuration 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 s 1b1 1b2 1a 2b1 2b2 2a gnd v cc oe 4b1 4b2 4a 3b1 3b2 3a sa00533 pin description pin number symbol name and function 1 s select-control input 2, 3, 5, 6, 10, 11, 13, 14 1b1, 1b2, 2b1, 2b2 3b1, 3b2 4b1, 4b2 b outputs 4, 7, 9, 12 1a, 2a, 3a, 4a a inputs 8 gnd ground (0 v) 15 oe output enable 16 v cc positive supply voltage ordering information packages temperature range order code topside mark dwg number 16-pin plastic so 40 to 85 c CBTD3257d CBTD3257d sot109-1 16-pin plastic ssop 40 to 85 c CBTD3257db cd3257 sot338-1 16-pin plastic ssop (qsop) 40 to 85 c CBTD3257ds cbd3257 sot519-1 16-pin plastic tssop 40 to 85 c CBTD3257pw cbd3257 sot403-1 standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 3 logic diagram (positive logic) 4 1a 2 1b1 3 1b2 7 2a 5 2b1 6 2b2 9 3a 11 3b1 10 3b2 12 4a 14 4b1 13 4b2 1 s 15 oe sa00532 function table inputs function oe s function l l a port = b1 port l h a port = b2 port h x disconnect
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 4 absolute maximum ratings 1 symbol parameter conditions rating unit v cc dc supply voltage 0.5 to +7.0 v v i dc input voltage 2 0.5 to +7.0 v continuous channel current 128 ma i k input clamp current v i/o < 0 50 ma t stg storage temperature range 65 to +150 c 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 arecommended operating conditionso is not implied. exposur e to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. the input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. recommended operating conditions symbol parameter limits unit symbol parameter min max unit v cc dc supply voltage 4.5 5.5 v v ih high-level input voltage 2.0 e v v il low-level input voltage e 0.8 v t amb operating free-air temperature range 40 +85 c note: 1. all unused control inputs of the device must be held at v cc or gnd to ensure proper device operation. dc electrical characteristics limits symbol parameter test conditions t amb = 40 to +85 c unit min typ 1 max v ik input clamp voltage v cc = 4.5 v; i i = 18 ma e e 1.2 v v p pass voltage v i = v cc = 5.5 v; i/o = 100 ma see figure 1 i i input leakage current v cc = 5.5 v; v i = gnd or 5.5 v e e 1 m a i cc quiescent supply current v cc = 5.5 v; i o = 0, v i = v cc or gnd e e 1.5 ma d i cc additional supply current per input pin 2 v cc = 5.5 v, one input at 3.4 v, other inputs at v cc or gnd e e 2.5 ma c i control pins v i = 3 v or 0 e 4.5 e pf c o(o ) power off leakage current a port v o = 3 v or 0; oe = v cc e 12.5 e pf c io(off) po w er - off leakage c u rrent b port v o = 3 v or 0; oe = v cc e 6.5 e pf 3 v cc = 4.5 v; v i = 0v; i i = 64 ma e 5 7 w r on 3 on-resistance v cc = 4.5 v; v i = 0v; i i = 30 ma e 5 7 w v cc = 4.5 v; v i = 2.4 v; i i = 15 ma e 16 50 w notes: 1. all typical values are at v cc = 5 v, t amb = 25 c. 2. this is the increase in supply current for each input that is at the specified ttl voltage level rather than v cc 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 preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 5 ac characteristics t amb = 40 to +85 c; c l = 50 pf to limits symbol parameter from (input) to (output) v cc = +5.0 v 0.5 v unit (output) min max t pd propagation delay 1 a or b b or a e 0.25 ns t pd propagation delay s a 1.6 11.0 ns t output enable time oe a or b 1.8 11.2 ns t en to high and low level s b 1.6 10.8 ns t output disable time oe a or b 2.2 6.0 ns t dis from high and low level s b 2.0 8.0 ns note: 1. the propagation delay is the calculated rc time constant of the typical on-state resistance of the switch and the specified l oad capacitance, when driven by an ideal voltage source (zero output impedance). ac waveforms v m = 1.5 v, v in = gnd to 3.0 v input 1.5 v output t plh t phl sa00028 1.5 v 1.5 v 1.5 v 3 v 0 v v oh v ol waveform 1. input to output propagation delays output control (low-level enabling ) 1.5 v t pzh t phz v oh v ol t pzl t plz 3.5 v 0 v v ol + 0.3 v v oh 0.3 v sa00029 1.5 v 1.5 v 1.5 v 0 v 3 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. 3-state output enable and disable times notes: 1. t plz and t phz are the same as t dis . 2. t pzl and t pzh are the same as t en . 3. t plh and t phl are the same as t pd . test circuit and waveforms c l = 50 pf 500 w load circuit definitions c l = load capacitance includes jig and probe capacitance; see ac characteristics for value. test s1 t pd open t plz /t pzl 7 v t phz /t pzh open sa00012 500 w from output under test s1 7 v open gnd notes: 1. all input pulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 w , t r 2.5 ns, t f 2.5 ns. 2. the outputs are measured one at a time with one transition per measurement.
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 6 typical characteristics 100 m a 24 ma 24 ma 12 ma temp = 85 c temp = 0 c temp = 25 c temp = 70 c temp = 40 c v cc supply voltage v cc supply voltage v cc supply voltage v cc supply voltage v cc supply voltage v p v p v p 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 3.4 3.2 3.0 2.8 2.6 2.4 2.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 4.4 4.6 4.8 5.0 5.2 5.4 5.6 4.4 4.6 4.8 5.0 5.2 5.4 5.6 4.4 4.6 4.8 5.0 5.2 5.4 5.6 100 m a 100 m a 100 m a 100 m a 6 ma 6 ma 6 ma 6 ma 12 ma 12 ma 24 ma 24 ma 24 ma sw00895 3.8 12 ma 12 ma 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 6 ma 2.0 v p v p 2.0 figure 1. v oh values (v in = v cc )
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 7 so16: plastic small outline package; 16 leads; body width 3.9 mm sot109-1
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 8 ssop16: plastic shrink small outline package; 16 leads; body width 5.3 mm sot338-1
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 9 ssop16: plastic shrink small outline package; 16 leads; body width 3.9 mm; lead pitch 0.635 mm sot519-1
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 10 tssop16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm sot403-1
philips semiconductors preliminary data CBTD3257 quad 1-of-2 multiplexer/demultiplexer with level shifting 2002 sep 09 11 definitions short-form specification e 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 e 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 dev ice at these or at any other conditions above those given in the characteristics sections of the specification is not implied. exposure to limi ting values for extended periods may affect device reliability. application information e 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 e 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 i n 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 e 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 ass umes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or m ask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right in fringement, unless otherwise specified. contact information for additional information please visit http://www.semiconductors.philips.com . fax: +31 40 27 24825 for sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com . ? koninklijke philips electronics n.v. 2002 all rights reserved. printed in u.s.a. date of release: 04-02 document order number: 9397 750

data sheet status [1] objective data preliminary data product data product status [2] development qualification production 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. changes will be communicated according to the customer product/process change notification (cpcn) procedure snw-sq-650a. data sheet status [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 l atest information is available on the internet at url http://www.semiconductors.philips.com.

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