SCBS159E − JANUARY 1991 − REVISED APRIL 2005 D State-of-the-Art EPIC-ΙΙB BiCMOS Design D D D D D D SN54ABT827 . . . JT PACKAGE SN74ABT827 . . . DB, DW, NT, OR PW PACKAGE (TOP VIEW) Significantly Reduces Power Dissipation Flow-Through Architecture Optimizes PCB Layout Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17 Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C High-Impedance State During Power Up and Power Down High-Drive Outputs (−32-mA IOH, 64-mA IOL) Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs OE1 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 GND 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 VCC Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 OE2 SN54ABT827 . . . FK PACKAGE (TOP VIEW) A2 A1 OE1 NC VCC Y1 Y2 description These 10-bit buffers or bus drivers provide a high-performance bus interface for wide data paths or buses carrying parity. 5 3 2 1 28 27 26 25 6 24 7 23 8 22 9 21 10 20 4 A3 A4 A5 NC A6 A7 A8 The 3-state control gate is a 2-input AND gate with active-low inputs so that, if either output-enable (OE1 or OE2) input is high, all ten outputs are in the high-impedance state. The ’ABT827 provides true data at the outputs. A9 A10 GND NC OE2 Y10 Y9 When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 11 19 12 13 14 15 16 17 18 Y3 Y4 Y5 NC Y6 Y7 Y8 NC − No internal connection The SN54ABT827 is characterized for operation over the full military temperature range of −55°C to 125°C. The SN74ABT827 is characterized for operation from −40°C to 85°C. FUNCTION TABLE INPUTS A OUTPUT Y OE1 OE2 L L L L L L H H H X X Z X H X 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-ΙΙB is a trademark of Texas Instruments. Copyright 2005, Texas Instruments Incorporated !"#$%! & '("")% $& ! *(+,'$%! -$%). "!-('%& '!!"# %! &*)''$%!& *)" %/) %)"#& ! )0$& &%"(#)%& &%$-$"- 1$""$%2. "!-('%! *"!')&&3 -!)& !% )')&&$",2 ',(-) %)&%3 ! $,, *$"$#)%)"&. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SCBS159E − JANUARY 1991 − REVISED APRIL 2005 logic symbol† 1 OE1 OE2 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 13 2 logic diagram (positive logic) OE1 & OE2 EN 1 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 A1 1 13 2 23 Y1 Y1 Y2 To Nine Other Channels Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the DB, DW, JT, NT, and PW packages. 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 7 V Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . −0.5 V to 5.5 V Current into any output in the low state, IO: SN54ABT827 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74ABT827 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −18 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W NT package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −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 package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages, which use a trace length of zero. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SCBS159E − JANUARY 1991 − REVISED APRIL 2005 recommended operating conditions (see Note 3) SN54ABT827 SN74ABT827 MIN MAX MIN MAX 4.5 5.5 4.5 5.5 UNIT VCC VIH Supply voltage VIL VI Low-level input voltage IOH IOL High-level output current VCC −24 Low-level output current 48 64 mA ∆t/∆v Input transition rise or fall rate 5 5 ns/V ∆t/∆VCC TA Power-up ramp rate 200 Operating free-air temperature −55 High-level input voltage 2 2 0.8 Input voltage 0 V 0.8 0 VCC −32 −40 V V mA µs/V 200 125 V 85 °C NOTE 3: Unused inputs must be held high or low to prevent them from floating. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SCBS159E − JANUARY 1991 − REVISED APRIL 2005 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH TEST CONDITIONS VCC = 4.5 V, VCC = 4.5 V, II = −18 mA IOH = −3 mA VCC = 5 V, VCC = 4.5 V VOL Vhys II IOZPU‡ IOZPD‡ IOZH IOZL Ioff ICEX IO¶ VCC = 4.5 V ∆ICC# Ci MIN SN74ABT827 MAX −1.2 MIN −1.2 MAX −1.2 2.5 2.5 IOH = −3 mA IOH = −24 mA 3 3 3 2 2 IOH = −32 mA IOL = 48 mA 2* UNIT V V 2 0.55 0.55 0.55* 0.55 100 V mV VCC = 0 to 5.5 V, VI = VCC or GND VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V, OE = X ±1 ±1 ±1 µA ±50 ±10 ±50 µA VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V, OE = X VCC = 2.1 V to 5.5 V, VO = 2.7 V, OE ≥ 2 V ±50 10§ ±10 µA 10 ±50 10§ −10§ −10 −10§ µA ±100 µA 50 −225§ mA VCC = 2.1 V to 5.5 V, VO = 0.5 V, OE ≥ 2 V VCC = 0, VI or VO ≤ 5.5 V VCC = 5.5 V, VO = 5.5 V VCC = 5.5 V, VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND ±100 Outputs high VO = 2.5 V Outputs high −50 −140 50 −225§ 80 50 −225§ −50 −50 µA µA µA Outputs low 35 250 40§ 250 40§ 250 40§ mA Outputs disabled 80 250 250 250 µA Outputs enabled 1.5 1.5 1.5 mA Outputs disabled 50 50 50 µA 1.5 1.5 1.5 mA Control inputs VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V Co SN54ABT827 2.5 IOL = 64 mA VCC = 5.5 V, IO = 0, VI = VCC or GND ICC TA = 25°C TYP† MAX MIN 4 pF 8 pF * On products compliant to MIL-PRF-38535, this parameter does not apply. † All typical values are at VCC = 5 V. ‡ This parameter is characterized, but not production tested. § This data sheet limit may vary among suppliers. ¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. # This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND. switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) FROM (INPUT) TO (OUTPUT) tPLH tPHL A Y tPZH tPZL OE Y tPHZ tPLZ OE Y PARAMETER VCC = 5 V, TA = 25°C POST OFFICE BOX 655303 SN74ABT827 MIN TYP MAX MIN MAX MIN MAX 1.1 2.6 4.4 1.1 4.9 1.1 4.8 1.1 1§ 2.3 4.1 1.1 4.8 4.7 3.2 5.1 1 6 1.1 1§ 7.1 1§ 6.9 2 1.3§ 6.8 1§ 3.3 5.9 2 1.3§ 4.9 6.3 2 7 4.2 6.6 1.3 7.9 § This data sheet limit may vary among suppliers. 4 SN54ABT827 • DALLAS, TEXAS 75265 1 UNIT ns 5.9 6.9 ns ns SCBS159E − JANUARY 1991 − REVISED APRIL 2005 PARAMETER MEASUREMENT INFORMATION 500 Ω From Output Under Test S1 7V Open GND CL = 50 pF (see Note A) 500 Ω TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 7V Open 3V LOAD CIRCUIT Timing Input 1.5 V 0V tw tsu 3V th 3V Input 1.5 V 1.5 V Data Input 0V 1.5 V 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATION 3V 3V 1.5 V Input Output Control 1.5 V 0V 1.5 V 1.5 V VOL tPLH tPHL VOH Output 1.5 V 1.5 V VOL 1.5 V 0V tPLZ Output Waveform 1 S1 at 7 V (see Note B) VOH Output 1.5 V tPZL tPHL tPLH 1.5 V Output Waveform 2 S1 at Open (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS 1.5 V 3.5 V VOL + 0.3 V VOL tPHZ tPZH 1.5 V VOH − 0.3 V VOH ≈0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING 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 5 PACKAGE OPTION ADDENDUM www.ti.com 26-Sep-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty 5962-9450901Q3A ACTIVE LCCC FK 28 1 TBD Call TI Level-NC-NC-NC 5962-9450901QKA ACTIVE CFP W 24 1 TBD Call TI Level-NC-NC-NC 1 TBD Call TI Level-NC-NC-NC TBD Call TI Call TI Lead/Ball Finish MSL Peak Temp (3) 5962-9450901QLA ACTIVE CDIP JT 24 SN74ABT827DBLE OBSOLETE SSOP DB 24 SN74ABT827DBR ACTIVE SSOP DB 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827DBRE4 ACTIVE SSOP DB 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827DW ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827DWE4 ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827DWR ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827DWRE4 ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827NSR ACTIVE SO NS 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827NSRE4 ACTIVE SO NS 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827NT ACTIVE PDIP NT 24 15 Pb-Free (RoHS) CU NIPDAU Level-NC-NC-NC SN74ABT827NTE4 ACTIVE PDIP NT 24 15 Pb-Free (RoHS) CU NIPDAU Level-NC-NC-NC SN74ABT827PW ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827PWE4 ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827PWLE OBSOLETE TSSOP PW 24 TBD Call TI SN74ABT827PWR ACTIVE TSSOP PW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ABT827PWRE4 ACTIVE TSSOP PW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SNJ54ABT827FK ACTIVE LCCC FK 28 1 TBD Call TI Level-NC-NC-NC SNJ54ABT827JT ACTIVE CDIP JT 24 1 TBD Call TI Level-NC-NC-NC SNJ54ABT827W ACTIVE CFP W 24 1 TBD Call TI Level-NC-NC-NC 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 Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 26-Sep-2005 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. 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Addendum-Page 2 MECHANICAL DATA MCER004A – JANUARY 1995 – REVISED JANUARY 1997 JT (R-GDIP-T**) CERAMIC DUAL-IN-LINE 24 LEADS SHOWN PINS ** A 13 24 B 1 24 28 A MAX 1.280 (32,51) 1.460 (37,08) A MIN 1.240 (31,50) 1.440 (36,58) B MAX 0.300 (7,62) 0.291 (7,39) B MIN 0.245 (6,22) 0.285 (7,24) DIM 12 0.070 (1,78) 0.030 (0,76) 0.100 (2,54) MAX 0.320 (8,13) 0.290 (7,37) 0.015 (0,38) MIN 0.200 (5,08) MAX Seating Plane 0.130 (3,30) MIN 0.023 (0,58) 0.015 (0,38) 0°–15° 0.014 (0,36) 0.008 (0,20) 0.100 (2,54) 4040110/C 08/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a ceramic lid using glass frit. Index point is provided on cap for terminal identification. Falls within MIL STD 1835 GDIP3-T24, GDIP4-T28, and JEDEC MO-058 AA, MO-058 AB POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MCFP007 – OCTOBER 1994 W (R-GDFP-F24) CERAMIC DUAL FLATPACK 0.375 (9,53) 0.340 (8,64) Base and Seating Plane 0.006 (0,15) 0.004 (0,10) 0.090 (2,29) 0.045 (1,14) 0.045 (1,14) 0.026 (0,66) 0.395 (10,03) 0.360 (9,14) 0.360 (9,14) 0.240 (6,10) 1 0.360 (9,14) 0.240 (6,10) 24 0.019 (0,48) 0.015 (0,38) 0.050 (1,27) 0.640 (16,26) 0.490 (12,45) 0.030 (0,76) 0.015 (0,38) 12 13 30° TYP 1.115 (28,32) 0.840 (21,34) 4040180-5 / B 03/95 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a ceramic lid using glass frit. Falls within MIL-STD-1835 GDFP2-F24 and JEDEC MO-070AD Index point is provided on cap for terminal identification only. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MLCC006B – OCTOBER 1996 FK (S-CQCC-N**) LEADLESS CERAMIC CHIP CARRIER 28 TERMINAL SHOWN 18 17 16 15 14 13 NO. OF TERMINALS ** 12 19 11 20 10 A B MIN MAX MIN MAX 20 0.342 (8,69) 0.358 (9,09) 0.307 (7,80) 0.358 (9,09) 28 0.442 (11,23) 0.458 (11,63) 0.406 (10,31) 0.458 (11,63) 21 9 22 8 44 0.640 (16,26) 0.660 (16,76) 0.495 (12,58) 0.560 (14,22) 23 7 52 0.739 (18,78) 0.761 (19,32) 0.495 (12,58) 0.560 (14,22) 24 6 68 0.938 (23,83) 0.962 (24,43) 0.850 (21,6) 0.858 (21,8) 84 1.141 (28,99) 1.165 (29,59) 1.047 (26,6) 1.063 (27,0) B SQ A SQ 25 5 26 27 28 1 2 3 4 0.080 (2,03) 0.064 (1,63) 0.020 (0,51) 0.010 (0,25) 0.020 (0,51) 0.010 (0,25) 0.055 (1,40) 0.045 (1,14) 0.045 (1,14) 0.035 (0,89) 0.045 (1,14) 0.035 (0,89) 0.028 (0,71) 0.022 (0,54) 0.050 (1,27) 4040140 / D 10/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a metal lid. The terminals are gold plated. Falls within JEDEC MS-004 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MPDI004 – OCTOBER 1994 NT (R-PDIP-T**) PLASTIC DUAL-IN-LINE PACKAGE 24 PINS SHOWN PINS ** A 24 28 A MAX 1.260 (32,04) 1.425 (36,20) A MIN 1.230 (31,24) 1.385 (35,18) B MAX 0.310 (7,87) 0.315 (8,00) B MIN 0.290 (7,37) 0.295 (7,49) DIM 24 13 0.280 (7,11) 0.250 (6,35) 1 12 0.070 (1,78) MAX B 0.020 (0,51) MIN 0.200 (5,08) MAX Seating Plane 0.125 (3,18) MIN 0.100 (2,54) 0.021 (0,53) 0.015 (0,38) 0°– 15° 0.010 (0,25) M 0.010 (0,25) NOM 4040050 / B 04/95 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 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 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 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-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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. 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