CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 D D D D D D D DW PACKAGE (TOP VIEW) Low-Skew Propagation Delay Specifications for Clock-Driver Applications TTL-Compatible Inputs and CMOS-Compatible Outputs Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC and GND Pin Configurations Minimize High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-µm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic Small-Outline (DW) 1Y2 1Y3 1Y4 GND GND GND GND 2Y1 2Y2 2Y3 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 1Y1 1A 1OE1 1OE2 VCC VCC 2A 2OE1 2OE2 2Y4 description The CDC208 contains dual clock-driver circuits that fanout one input signal to four outputs with minimum skew for clock distribution (see Figure 2). The device also offers two output-enable (OE1 and OE2) inputs for each circuit that can force the outputs to be disabled to a high-impedance state or to a high- or low-logic level independent of the signal on the respective A input. Skew parameters are specified for a reduced temperature and voltage range common to many applications. The CDC208 is characterized for operation from – 40°C to 85°C. FUNCTION TABLES INPUTS OUTPUTS 1OE1 1OE2 1A 1Y1 1Y2 1Y3 L L L L L L 1Y4 L L L H H H H H L H X L L L L H L X H H H H H H X Z Z Z Z INPUTS OUTPUTS 2OE1 2OE2 2A 2Y1 2Y2 2Y3 2Y4 L L L L L L L L L H H H H H L H X L L L L H L X H H H H H H X Z Z Z Z Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC is a trademark of Texas Instruments Incorporated. Copyright 1998, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 logic symbol† X/Y 1OE1 18 17 1OE2 1 2 1 1 V4 2 G5 3 EN 4, 5 20 1 1A 19 4, 5 4, 5 4, 5 2OE1 3 13 8 12 9 2OE2 2A 2 10 11 14 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) 1OE1 18 20 1OE2 17 1 2 3 1A 2OE1 19 9 11 2 1Y3 1Y4 2Y1 12 10 2A 1Y2 13 8 2OE2 1Y1 14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2Y2 2Y3 2Y4 CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 200 mA Maximum power dissipation at TA = 55°C (in still air) (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 W Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C † Stresses beyond those listed under “absolute maximum ratings” 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. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils. For more information, refer to the Package Thermal Considerations application note in the 1994 ABT Advanced BiCMOS Technology Data Book, literature number SCBD002B. recommended operating conditions MIN NOM MAX 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL VI Low-level input voltage IOH IOL High-level output current VCC – 24 mA Low-level output current 24 mA ∆t / ∆v Input transition rise or fall rate 10 ns / V fclock TA Input clock frequency 60 MHz 85 °C High-level input voltage 2 V 0.8 Input voltage 0 0 Operating free-air temperature – 40 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 V V V 3 CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS 4.5 V IOH = – 50 µA VOH IOH = – 24 mA IOH = – 75 mA† II IOZ ICC TA = 25°C TYP MAX IOL = 75 mA† VI = VCC or GND MIN 4.4 4.4 5.5 V 5.4 5.4 4.5 V 3.94 3.8 5.5 V 4.94 ∆ICC‡ One input at 3.4 V, Other inputs at VCC or GND Ci VI = VCC or GND VO = VCC or GND 0.1 0.1 0.1 0.1 4.5 V 0.36 0.44 5.5 V 0.36 0.44 V 1.65 5.5 V ± 0.1 ±1 µA 5.5 V ± 0.5 ±5 µA 5.5 V 8 80 µA 5.5 V 0.9 1 mA 5V POST OFFICE BOX 655303 V 5.5 V 4 Co 5V 10 † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. ‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC. 4 UNIT 4.8 5.5 V IO = 0 MAX 3.85 4.5 V IOL = 24 mA VO = VCC or GND VI = VCC or GND, MIN 5.5 V IOL = 50 µA VOL VCC • DALLAS, TEXAS 75265 pF pF CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL 1A and 2A Any Y tPLH tPHL 1OE1,, 1OE2,, and 2OE1, 2OE2 Any Y tPZH tPZL 1OE2 or 2OE2 tPHZ tPLZ 1OE2 or 2OE2 MIN Any Y 1OE1 or 2OE1 Any Y 1OE1 or 2OE1 TA = 25°C TYP MAX MIN MAX 5.3 8.5 10.9 5.3 11.7 3.6 7.7 11 3.6 11.5 4.7 8.5 11.7 4.7 12.8 4.4 8.4 11.3 4.4 12.4 4.4 8.1 11.3 4.4 12.4 5 9.6 13.3 5 14.9 4.2 7.4 9.3 4.2 10.2 5.4 7.5 9.2 5.4 9.9 UNIT ns ns ns ns switching characteristics, VCC = 5 V ± 0.25 V, TA = 25°C to 70°C (see Note 3 and Figures 1 and 2) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL 1A and 2A Any Y MIN MAX 6.6 10.2 6.6 9.8 tsk(o) 1A and 2A Any Y NOTE 3: All specifications are valid only for all outputs switching simultaneously and in phase. 1 UNIT ns ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd d Power dissipation capacitance per bank TEST CONDITIONS Outputs enabled Outputs disabled POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CL = 50 pF, pF f = 1 MHz TYP 96 12 UNIT pF 5 CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 PARAMETER MEASUREMENT INFORMATION 2 × VCC From Output Under Test 500 Ω 3V Output Control (low-level enabling) LOAD CIRCUIT FOR OUTPUTS 1.5 V 3V 1.5 V 1.5 V 0V tPLH Output tPHL VOH 50% VCC VOL 50% VCC tPLZ ≈ VCC Output Waveform 1 S1 at 2 × VCC (see Note C) Output Waveform 2 S1 at 2 × VCC (see Note C) 1.5 V 0V tPZL Input (see Note B) S1 Open 2 × VCC GND TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open GND CL = 50 pF (see Note A) (see Note A) S1 500 Ω 50% VCC tPZH VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES 20% VCC VOL tPHZ 50% VCC 80% VCC VOH 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES NOTES: A. CL includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns. For testing pulse duration: tr = tf = 1 to 3 ns. Pulse polarity can be either high-to-low-to-high or low-to-high-to-low. C. 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. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 PARAMETER MEASUREMENT INFORMATION 1A, 2A 1Y1 tPLH1 tPHL1 tPLH2 tPHL2 tPLH3 tPHL3 tPLH4 tPHL4 tPLH5 tPHL5 tPLH6 tPHL6 tPLH7 tPHL7 tPLH8 tPHL8 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 NOTE A: Output skew, tsk(o), is calculated as the greater of: – The difference between the fastest and slowest of tPLHn (n = 1, 2, . . . , 8) – The difference between the fastest and slowest of tPHLn (n = 1, 2, . . . , 8) Figure 2. Waveforms for Calculation of tsk(o) POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 CDC208 DUAL 1-LINE TO 4-LINE CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS109F – APRIL 1990 – REVISED OCTOBER 1998 MECHANICAL INFORMATION DW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 16 PIN SHOWN 0.050 (1,27) 0.020 (0,51) 0.014 (0,35) 16 0.010 (0,25) M 9 0.419 (10,65) 0.400 (10,15) 0.010 (0,25) NOM 0.299 (7,59) 0.293 (7,45) Gage Plane 0.010 (0,25) 1 8 0°– 8° A 0.050 (1,27) 0.016 (0,40) Seating Plane 0.104 (2,65) MAX 0.012 (0,30) 0.004 (0,10) 0.004 (0,10) PINS ** 16 20 24 A MAX 0.410 (10,41) 0.510 (12,95) 0.610 (15,49) A MIN 0.400 (10,16) 0.500 (12,70) 0.600 (15,24) DIM 4040000 / D 02/98 NOTES: A. B. C. D. 8 All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15). Falls within JEDEC MS-013 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 17-Nov-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type CDC208DBLE OBSOLETE SSOP DB 20 TBD Call TI CDC208DW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC208DWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC208DWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC208DWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC208N OBSOLETE PDIP N 20 Package Drawing Pins Package Eco Plan (2) Qty TBD Lead/Ball Finish Call TI MSL Peak Temp (3) Call TI Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Amplifiers amplifier.ti.com Audio www.ti.com/audio Data Converters dataconverter.ti.com Automotive www.ti.com/automotive DSP dsp.ti.com Broadband www.ti.com/broadband Interface interface.ti.com Digital Control www.ti.com/digitalcontrol Logic logic.ti.com Military www.ti.com/military Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork Microcontrollers microcontroller.ti.com Security www.ti.com/security Telephony www.ti.com/telephony Video & Imaging www.ti.com/video Wireless www.ti.com/wireless Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2005, Texas Instruments Incorporated