CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 D D D D D D D D D High-Speed, Low-Skew 1-to-10 Clock Buffer for SDRAM (Synchronous DRAM) Clock Buffering Applications Output Skew, tsk(o), Less Than 250 ps Pulse Skew, tsk(p), Less Than 500 ps Supports up to Two Unbuffered SDRAM DIMMs (Dual Inline Memory Modules) I2C Serial Interface Provides Individual Enable Control for Each Output Operates at 3.3 V Distributed VCC and Ground Pins Reduce Switching Noise ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015 Packaged in 28-Pin Shrink Small Outline (DB) Package DB PACKAGE (TOP VIEW) VCC 1Y0 1Y1 GND VCC 1Y2 1Y3 GND A VCC 3Y0 GND VCC SDATA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC 2Y3 2Y2 GND VCC 2Y1 2Y0 GND OE VCC 3Y1 GND GND SCLOCK description The CDC319 is a high-performance clock buffer that distributes one input (A) to 10 outputs (Y) with minimum skew for clock distribution. The CDC319 operates from a 3.3-V power supply, and is characterized for operation from 0°C to 70°C. The device provides a standard mode (100K-bits/s) I2C serial interface for device control. The implementation is as a slave/receiver. The device address is specified in the I2C device address table. Both of the I2C inputs (SDATA and SCLOCK) provide integrated pullup resistors (typically 140 kΩ) and are 5-V tolerant. Three 8-bit I2C registers provide individual enable control for each of the outputs. All outputs default to enabled at powerup. Each output can be placed in a disabled mode with a low-level output when a low-level control bit is written to the control register. The registers are write only and must be accessed in sequential order (i.e., random access of the registers is not supported). The CDC319 provides 3-state outputs for testing and debugging purposes. The outputs can be placed in a high-impedance state via the output-enable (OE) input. When OE is high, all outputs are in the operational state. When OE is low, the outputs are placed in a high-impedance state. OE provides an integrated pullup resistor. 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. Copyright 2001, 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 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 FUNCTION TABLE INPUTS OUTPUTS OE A 1Y0–1Y3 2Y0–2Y3 3Y0–3Y1 L X Hi-Z Hi-Z Hi-Z H L H H L H† L H† H† L † The function table assumes that all outputs are enabled via the appropriate I2C configuration register bit. If the output is disabled via the appropriate configuration bit, then the output is driven to a low state, regardless of the state of the A input. logic diagram (positive logic) 20 OE 14 SDATA I2C Register Space I2C 10 / 2, 3, 6, 7 15 SCLOCK 1Y0–1Y3 22, 23, 26, 27 2Y0–2Y3 9 A 11, 18 3Y0 – 3Y1 Terminal Functions TERMINAL NAME 2 NO. I/O DESCRIPTION 1Y0–1Y3 2, 3, 6, 7 O 3.3-V SDRAM byte 0 clock outputs 2Y0–2Y3 22, 23, 26, 27 O 3.3-V SDRAM byte 1 clock outputs 3Y0–3Y1 11, 18 O 3.3-V clock outputs provided for feedback control of external PLLs (phase-locked loops) A 9 I Clock input OE 20 I Output enable. When asserted, OE puts all outputs in a high-impedance state. A nominal 140-kΩ pullup resistor is internally integrated. SCLOCK 15 I I2C serial clock input. A nominal 140-kΩ pullup resistor is internally integrated. SDATA 14 I/O GND 4, 8, 12, 16, 17, 21, 25 Ground VCC 1, 5, 10, 13, 19, 24, 28 3.3-V power supply Bidirectional I2C serial data input/output. A nominal 140-kΩ pullup resistor is internally integrated. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 I2C DEVICE ADDRESS A7 A6 A5 A4 A3 A2 A1 A0 (R/W) H H L H L L H — I2C BYTE 0-BIT DEFINITION† BIT DEFINITION DEFAULT VALUE 7 Reserved H 6 Reserved H 5 Reserved H 4 Reserved H 3 1Y3 enable (pin 7) H 2 1Y2 enable (pin 6) H 1 1Y1 enable (pin 3) H 0 1Y0 enable (pin 2) H † When the value of the bit is high, the output is enabled. When the value of the bit is low, the output is forced to a low state. The default value of all bits is high. I2C BYTE 1-BIT DEFINITION† BIT DEFINITION DEFAULT VALUE 7 2Y3 enable (pin 27) H 6 2Y2 enable (pin 26) H 5 2Y1 enable (pin 23) H 4 2Y0 enable (pin 22) H 3 Reserved H 2 Reserved H 1 Reserved H 0 Reserved H † When the value of the bit is high, the output is enabled. When the value of the bit is low, the output is forced to a low state. The default value of all bits is high. I2C BYTE 2-BIT DEFINITION† BIT DEFINITION DEFAULT VALUE 7 3Y1 enable (pin 18) H 6 3Y0 enable (pin 11) H 5 Reserved H 4 Reserved H 3 Reserved H 2 Reserved H 1 Reserved H 0 Reserved H † When the value of the bit is high, the output is enabled. When the value of the bit is low, the output is forced to a low state. The default value of all bits is high. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4.6 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4.6 V Input voltage range, VI (SCLOCK, SDATA) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V Output voltage range, VO (SDATA) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V Voltage range applied to any output in the high-impedance or power-off state, VO . . . –0.5 V to VCC + 0.5 V Current into any output in the low state (except SDATA), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA Current into SDATA in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mA Input clamp current, IIK (VI < 0) (SCLOCK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA Output clamp current, IOK (VO < 0) (SDATA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA Package thermal impedance, θJA (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 °C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260_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 package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages, which use a trace length of zero. recommended operating conditions (see Note 3) MIN VCC 3.3-V core supply voltage MAX UNIT 3.135 3.465 V 2 VCC+0.3 V 2.2 5.5 V –0.3 0.8 V 0 1.04 V A, OE VIH High-level input voltage VIL Low-level input voltage SDATA, SCLOCK (see Note 3) IOH IOL High-level output current Y outputs – 24 mA Low-level output current Y outputs 24 mA RI Input resistance to VCC SDATA, SCLOCK (see Note 3) f(SCL) t(BUS) SCLOCK frequency Bus free time 4.7 µs tsu(START) th(START) START setup time 4.7 µs 4 µs tw(SCLL) tw(SCLH) SCLOCK low pulse duration 4.7 µs tr(SDATA) tf(SDATA) SDATA input rise time tsu(SDATA) th(SDATA) SDATA setup time SDATA hold time 0 ns tsu(STOP) TA STOP setup time 4 µs Operating free-air temperature 0 SDATA, SCLOCK (see Note 3) A, OE 140 kΩ 100 START hold time SCLOCK high pulse duration SDATA input fall time 1000 ns 300 ns 250 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 kHz µs 4 NOTE 3: The CMOS-level inputs fall within these limits: VIH min = 0.7 × VCC and VIL max = 0.3 × VCC. 4 TYP ns 70 °C CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VOL IOH IOL TEST CONDITIONS Input clamp voltage High-level output voltage Low-level output voltage High level output current High-level Low-level output current Y outputs VCC = 3.135 V, VCC = 3.135 V, II = –18 mA IOH = –1 mA Y outputs VCC = 3.135 V, SDATA VCC = 3.135 3 135 V IOL = 1 mA IOL = 3 mA SDATA VCC = 3.135 V, VCC = 3.135 V, Y outputs Y outputs VCC = 3.3 V, VCC = 3.465 V, VCC = 3.135 V, VCC = 3.3 V, MIN TYP High-level input current V 0.1 0.4 0.2 0.6 VO = 2 V VO = 2.6 V – 54 –126 VO = 3.135 V VO = 1 V – 21 IOL = 6 mA VO = VCC MAX VCC = 3.465 V, VO = 0.7 V VO = 0.4 V VCC = 3.465 V, VI = VCC 20 – 46 49 118 23 53 20 ICC Supply current ∆ICC Change in supply current Ci Input capacitiance Co CI/O µA –5 VI = GND SCLOCK, SDATA Off-state current mA 58 20 VCC = 3.465 V, OE High-impedance-state output current µA 5 OE IOZ Ioff V mA – 60 A Low-level input current V 0.4 SCLOCK, SDATA IIL UNIT –1.2 2.4 A IIH MAX SCLOCK, SDATA VCC = 3.465 V, VCC = 0 V, –10 – 50 – 10 – 50 VO = 3.465 V or 0 VI = 0 V to 5.5 V VCC = 3.465 V, IO = 0 VCC = 3.135 V to 3.465 V, One input at VCC – 0.6 V, All other inputs at VCC or GND 0.2 µA ±10 µA 50 µA 0.5 mA 500 µA VCC = 3.3 V VCC = 3.3 V 4 pF Output capacitance VI = VCC or GND, VO = VCC or GND, 6 pF SDATA I/O capacitance VI/O = VCC or GND, VCC = 3.3 V 7 pF POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 switching characteristics over recommended operating conditions PARAMETER tPLH Low-to-high level propagation delay time tPLH Low-to-high level propagation delay time tPHL High-to-low level propagation delay time tPHL High-to-low level propagation delay time tPZH tPZL Enable time to the high level tPHZ tPLZ Disable time from the high level tsk(o) tsk(p) tsk(pr) tr FROM TO A Y SCLOCK↓ SDATA valid SDATA↑ Y TEST CONDITIONS MIN MAX 1.2 3.6 ns VCC = 3.3 V ±0.185 V, See Figure 3 2 µs VCC = 3.3 V ±0.185 V, See Figure 3 150 ns A Y 3.6 ns SCLOCK↓ SDATA valid VCC = 3.3 V ±0.185 V, See Figure 3 2 µs SDATA↑ Y VCC = 3.3 V ±0.185 V, See Figure 3 150 ns OE Y 47 4.7 ns Skew time A Y 250 ps Skew time A Y 500 ps Skew time A Y 1 ns 1.3 ns Enable time to the low level 1.2 1 Disable time from the low level Rise time tr Rise time ((see Note 4 and Figure 3) tf Fall time tf Fall time ((see Note 4 and Figure 3) f Operating frequency (see Note 5) Y 0.5 CL = 10 pF SDATA CL = 400 pF Y SDATA 6 250 0.5 CL = 10 pF 1.3 20 CL = 400 pF 250 CL = 30 pF, TA = 70°C 100 CL = 20 pF, TA = 70°C 125 CL = 15 pF, TA = 70°C 140 NOTES: 4. This parameter has a lower limit than BUS specification. This allows use of series resistors for current spike protection. 5. See Figure 4 (Frequency versus Capacitive Load). 6 UNIT POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ns ns ns MHz CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 PARAMETER MEASUREMENT INFORMATION 6V S1 500 Ω From Output Under Test GND CL = 30 pF (see Note A) S1 Open 6V GND TEST tPLH /tPHL tPLZ /tPZL tPHZ /tPZH Open 500 Ω tw LOAD CIRCUIT FOR tpd AND tsk 3V Input 1.5 V 1.5 V From Output Under Test 0V VOLTAGE WAVEFORMS CL = 30 pF (see Note A) 1.5 V 0V tPHL 2.4 V 0.4 V tr 1.5 V 0V tPLZ 1.5 V tPLH Output 1.5 V tPZL 3V Input VCC Output Enable (high-level enabling) LOAD CIRCUIT FOR tr AND tf 1.5 V VOH 2.4 V 0.4 V VOL tf ≈3V Output Waveform 1 S1 at 6 V (see Note B) Output Waveform 2 S1 at GND (see Note B) 1.5 V VOL tPHZ tPZH VOLTAGE WAVEFORMS VOL + 0.3 V VOH 1.5 V VOH – 0.3 V ≈0V VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. 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. C. 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. D. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 PARAMETER MEASUREMENT INFORMATION A 1Y0 tPHL1 tPLH1 1Y1 tPHL2 tPLH2 1Y2 tPHL3 tPLH3 1Y3 tPHL4 tPLH4 2Y0 tPHL5 tPLH5 2Y1 tPHL6 tPLH6 2Y2 tPHL7 tPLH7 2Y3 tPHL8 tPLH8 3Y0 tPHL9 tPLH9 3Y1 tPHL10 tPLH10 NOTES: A. Output skew, tsk(o), is calculated as the greater of: – The difference between the fastest and slowest of tPLHn (n = 1:10) – The difference between the fastest and slowest of tPHLn (n = 1:10) B. Pulse skew, tsk(p), is calculated as the greater of |tPLHn – tPHLn| (n = 1:10). C. Process skew, tsk(pr), is calculated as the greater of: – The difference between the fastest and slowest of tPLHn (n = 1:10) across multiple devices under identical operating conditions – The difference between the fastest and slowest of tPHLn (n = 1:10) across multiple devices under identical operating conditions Figure 2. Waveforms for Calculation of tsk(o), tsk(p), tsk(pr) 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 PARAMETER MEASUREMENT INFORMATION VO = 3.3 V RL = 1 kΩ DUT CL = 10 pF or CL = 400 pF GND TEST CIRCUIT 4 to 6 Bytes for Complete Device Programming Start Condition (S) Bit 7 MSB Bit 0 LSB (R/W) Bit 6 tw(SCLL) Acknowledge (A) Stop Condition (P) tsu(START) tw(SCLH) 0.7 VCC 0.3 VCC SCLOCK tsu(START) tr tPHL tf t(BUS) tPLH 0.7 VCC 0.3 VCC SDATA tf(SDATA) th(START) tr(SDATA) th(SDATA) tsu(SDATA) tsu(STOP) Repeat Start Condition (see Note A) Start or Repeat Start Condition Stop Condition VOLTAGE WAVEFORMS BYTE DESCRIPTION 1 I2C address 2 Command (dummy value, ignored) 3 Byte count (dummy value, ignored) I2C data byte 0 4 5 6 I2C data byte 1 I2C data byte 2 NOTES: A. The repeat start condition is not supported. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 100 kHz, ZO = 50 Ω, tr ≥ 10 ns, tf ≥ 10 ns. Figure 3. Propagation Delay Times, tr and tf POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 CAPACITIVE LOAD vs SUPPORTED MAXIMUM CLOCK FREQUENCY 60 55 CL – Capaccitive Load – pF 50 TA = 55°C TJ = 130°C VDD = 3.465 V 45 40 35 30 TA = 70°C TJ = 130°C VDD = 3.6 V 25 20 15 10 30 40 50 60 70 80 90 100 110 120 f – Supported Maximum Clock Frequency – MHz 130 140 150 NOTES: A. With a total capacitive load of 20 pF for each output, the CDC319 is capable of running up to about 125 MHz. A lower capacitive load will allow higher application frequencies, up to 133 MHz (140 MHz). B. CPD for the CDC319 is about 25 pF per output (21 pF if CL < 20 pF) P(total) = VDD2 × CPD × FO × N + (VOH – VOL)2 × CL × FO × N + DC load where: N = number of switching outputs FO = clock frequency Package thermal impedance (junction-to-ambient) = 92.4°C/W Maximum junction temperature = 150°C (<125°C recommended) Figure 4 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CDC319 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE SCAS590A – DECEMBER 1997 – REVISED OCTOBER 2001 MECHANICAL INFORMATION DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 28 PIN SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,15 NOM 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°– 8° 1,03 0,63 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 8 14 16 20 24 28 30 38 A MAX 3,30 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 2,70 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 / C 10/95 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-150 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11 PACKAGE OPTION ADDENDUM www.ti.com 17-Apr-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty CDC319DB ACTIVE SSOP DB 28 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC319DBG4 ACTIVE SSOP DB 28 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC319DBR ACTIVE SSOP DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CDC319DBRG4 ACTIVE SSOP DB 28 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) (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), Pb-Free (RoHS Exempt), 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. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. 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. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device CDC319DBR Package Package Pins Type Drawing SSOP DB 28 SPQ Reel Reel Diameter Width (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 8.2 10.5 2.5 12.0 16.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) CDC319DBR SSOP DB 28 2000 346.0 346.0 33.0 Pack Materials-Page 2 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. 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