SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 D Organization . . . 65 536 by 8 Bits D Single 5-V Power Supply D Pin Compatible With Existing 512K MOS D D D D D D D D A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND ROMs, PROMs, and EPROMs All Inputs/Outputs Fully TTL Compatible Max Access/Min Cycle Time VCC ± 10% ’27C/PC512-10 100 ns ’27C/PC512-12 120 ns ’27C/PC512-15 150 ns ’27C/PC512-20 200 ns ’27C/PC512-25 250 ns Power Saving CMOS Technology Very High-Speed SNAP! Pulse Programming 3-State Output Buffers 400-mV Minimum DC Noise Immunity With Standard TTL Loads Latchup Immunity of 250 mA on All Input and Output Lines Low Power Dissipation ( VCC = 5.25 V ) − Active . . . 158 mW Worst Case − Standby . . . 1.4 mW Worst Case (CMOS Input Levels) Temperature Range Options 512K EPROM Available With MIL-STD-883C Class B High Reliability Processing (SMJ27C512) 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 VCC A14 A13 A8 A9 A11 G / VPP A10 E DQ7 DQ6 DQ5 DQ4 DQ3 FM PACKAGE ( TOP VIEW ) A7 A12 A15 NU VCC A14 A13 D D J PACKAGE ( TOP VIEW ) 4 A6 A5 A4 A3 A2 A1 A0 NC DQ0 description 29 6 28 7 27 8 26 9 25 10 24 11 23 12 22 13 21 A8 A9 A11 NC G / VPP A10 E DQ7 DQ6 14 15 16 17 18 19 20 DQ1 DQ2 GND NU DQ3 DQ4 DQ5 The TMS27C512 series are 65 536 by 8-bit (524 288-bit), ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs). The TMS27PC512 series are 65 536 by 8-bit (524 288-bit), one-time programmable (OTP) electrically programmable read-only memories (PROMs). 3 2 1 32 31 30 5 PIN NOMENCLATURE A0 −A15 E DQ0 −DQ7 G / VPP GND NC NU VCC Address Inputs Chip Enable/Power Down Inputs (programming) / Outputs 13-V Programming Power Supply Ground No Internal Connection Make No External Connection 5-V Power Supply 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 1997, Texas Instruments Incorporated !"# $ %&'# "$ (&)*%"# +"#', +&%#$ %! # $('%%"#$ (' #-' #'!$ '."$ $#&!'#$ $#"+"+ /""#0, +&%# (%'$$1 +'$ # '%'$$"*0 %*&+' #'$#1 "** (""!'#'$, POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 1 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 description (continued) These devices are fabricated using power-saving CMOS technology for high speed and simple interface with MOS and bipolar circuits. All inputs (including program data inputs) can be driven by Series 74 TTL circuits without the use of external pullup resistors. Each output can drive one Series 74 TTL circuit without external resistors. The data outputs are 3-state for connecting multiple devices to a common bus. The TMS27C512 and the TMS27PC512 are pin compatible with 28-pin 512K MOS ROMs, PROMs, and EPROMs. The TMS27C512 EPROM is offered in a dual-in-line ceramic package (J suffix) designed for insertion in mounting hole rows on 15,2-mm (600-mil) centers. The TMS27PC512 OTP PROM is supplied in a 32-lead plastic leaded chip carrier package using 1,25-mm (50-mil) lead spacing (FM suffix). The TMS27C512 and TMS27PC512 are offered with two choices of temperature ranges of 0°C to 70°C (JL and FML suffix) and − 40°C to 85°C (JE and FME suffix). See Table 1. All package styles conform to JEDEC standards. Table 1. Temperature Range Suffixes EPROM AND OTP PROM SUFFIX FOR OPERATING FREE-AIR TEMPERATURE RANGES 0°C TO 70°C − 40°C TO 85°C JL JE FML FME TMS27C512-xxx TMS27PC512-xxx These EPROMs and OTP PROMs operate from a single 5-V supply (in the read mode), thus are ideal for use in microprocessor-based systems. One other 13-V supply is needed for programming. All programming signals are TTL level. The device is programmed using the SNAP! Pulse programming algorithm. The SNAP! Pulse programming algorithm uses a VPP of 13 V and a VCC of 6.5 V for a nominal programming time of seven seconds. For programming outside the system, existing EPROM programmers can be used. Locations can be programmed singly, in blocks, or at random. 2 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 operation The seven modes of operation are listed in Table 2. The read mode requires a single 5-V supply. All inputs are TTL level except for VPP during programming (13 V for SNAP! Pulse) and 12 V on A9 for signature mode. Table 2. Operation Modes MODE† FUNCTION READ OUTPUT DISABLE STANDBY PROGRAMMING VERIFY PROGRAM INHIBIT SIGNATURE MODE G / VPP VIL VIL VIL VIH VIH X VIL VPP VIL VIL VIH VPP VIL VIL VCC A9 VCC X VCC X VCC X VCC X VCC X VCC X VH‡ A0 X X X X X X VIL E VCC VH‡ VIH CODE DQ0 −DQ7 Data Out Hi-Z Hi-Z Data In Data Out Hi-Z MFG DEVICE 97 85 † X can be VIL or VIH. ‡ VH = 12 V ± 0.5 V. read/ output disable When the outputs of two or more TMS27C512s or TMS27PC512s are connected in parallel on the same bus, the output of any particular device in the circuit can be read with no interference from the competing outputs of the other devices. To read the output of a single device, a low-level signal is applied to the E and G/ VPP pins. All other devices in the circuit should have their outputs disabled by applying a high-level signal to one of these pins. Output data is accessed at pins DQ0 through DQ7. latchup immunity Latchup immunity on the TMS27C512 and TMS27PC512 is a minimum of 250 mA on all inputs and outputs. This feature provides latchup immunity beyond any potential transients at the P.C. board level when the devices are interfaced to industry-standard TTL or MOS logic devices. Input-output layout approach controls latchup without compromising performance or packing density. power down Active ICC supply current can be reduced from 30 mA to 500 µA ( TTL-level inputs) or 250 µA (CMOS-level inputs) by applying a high TTL / CMOS signal to the E pin. In this mode all outputs are in the high-impedance state. erasure ( TMS27C512) Before programming, the TMS27C512 EPROM is erased by exposing the chip through the transparent lid to a high intensity ultraviolet light (wavelength 2537 angstroms). EPROM erasure before programming is necessary to assure that all bits are in the logic high state. Logic lows are programmed into the desired locations. A programmed logic low can be erased only by ultraviolet light. The recommended minimum exposure dose (UV intensity × exposure time) is 15-W⋅s / cm2. A typical 12-mW / cm2, filterless UV lamp erases the device in 21 minutes. The lamp should be located about 2.5 cm above the chip during erasure. It should be noted that normal ambient light contains the correct wavelength for erasure. Therefore, when using the TMS27C512, the window should be covered with an opaque label. POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 3 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 initializing (TMS27PC512) The one-time programmable TMS27PC512 PROM is provided with all bits in the logic high state, then logic lows are programmed into the desired locations. Logic lows programmed into a PROM cannot be erased. SNAP! Pulse programming The 512K EPROM and OTP PROM are programmed using the TI SNAP! Pulse programming algorithm illustrated by the flowchart in Figure 1, which programs in a nominal time of seven seconds. Actual programming time varies as a function of the programmer used. The SNAP! Pulse programming algorithm uses initial pulses of 100 microseconds (µs) followed by a byte verification to determine when the addressed byte has been successfully programmed. Up to 10 (ten) 100-µs pulses per byte are provided before a failure is recognized. The programming mode is achieved with G/ VPP = 13 V, VCC = 6.5 V, and E = VIL. Data is presented in parallel (eight bits) on pins DQ0 to DQ7. Once addresses and data are stable, E is pulsed. More than one device can be programmed when the devices are connected in parallel. Locations can be programmed in any order. When the SNAP! Pulse programming routine is complete, all bits are verified with VCC = 5 V, G / VPP = VIL, and E = VIL. program inhibit Programming can be inhibited by maintaining a high level input on the E pin. program verify Programmed bits can be verified when G / VPP and E = VIL. signature mode The signature mode provides access to a binary code identifying the manufacturer and type. This mode is activated when A9 is forced to 12 V. Two identifier bytes are accessed by toggling A0. All other addresses must be held low. the signature code for these devices is 9785. A0 selects the manufacturer’s code 97 (Hex), and A0 high selects the device code 85, as shown in Table 3. Table 3. Signature Mode IDENTIFIER† Manufacturer Code PINS A0 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 HEX VIL VIH 1 0 0 1 0 1 1 1 97 0 1 0 1 85 Device Code 1 0 0 0 † E = G = VIL, A9 = VH, A1 −A8 = VIL, A10 −A15 = VIL, PGM = VIH or VIL. 4 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 Start Address = First Location Program Mode VCC = 6.5 V ± 0.25 V, G / VPP = 13 V ± 0.25 V Program One Pulse = tw = 100 µs Last Address ? Increment Address No Yes Address = First Location X=0 Program One Pulse = tw = 100 µs No Increment Address Verify One Byte Fail X=X+1 X = 10? Interactive Mode Pass No Last Address ? Yes Yes VCC = 5 V ± 0.5 V, G / VPP = VIL Compare All Bytes To Original Data Device Failed Fail Final Verification Pass Device Passed Figure 1. SNAP! Pulse Programming Flow Chart POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 5 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 logic symbols† A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 E G / VPP 10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 1 20 22 EPROM 65 536 × 8 0 A 0 65 535 A A A A A A A A 11 12 13 15 16 17 18 19 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 15 [PWR DWN] A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 E & EN G / VPP 10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 1 20 22 OTP PROM 65 536 × 8 0 A 0 65 535 A A A A A A A A 11 12 13 15 16 17 18 19 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 15 [PWR DWN] & EN † These symbols are in accordance with ANSI / IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the J package. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.6 V to 7 V Supply voltage range, VPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.6 V to 14 V Input voltage range (see Note 1): All inputs except A9 . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.6 V to VCC + 1 V A9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.6 V to 13.5 V Output voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.6 V to VCC + 1 V Operating free-air temperature range (’27C512-_ _JL, ’27PC512-_ _FML)TA . . . . . . . . . . . . . . . 0°C to 70°C Operating free-air temperature range (’27C512-_ _JE, ’27PC512-_ _FME)TA . . . . . . . . . . . . . −40°C to 85°C 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. NOTE 1: All voltage values are with respect to GND. 6 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 recommended operating conditions MIN Read mode (see Note 2) NOM MAX UNIT 4.5 5 5.5 SNAP! Pulse programming algorithm 6.25 6.5 6.75 SNAP! Pulse programming algorithm 12.75 13 13.25 V VCC+1 VCC+1 V VCC Supply voltage G / VPP Supply voltage VIH High-level dc input voltage VIL Low-level dc input voltage TA Operating free-air temperature TA Operating free-air temperature TTL 2 CMOS VCC − 0.2 − 0.5 TTL CMOS V 0.8 V − 0.5 0.2 TMS27C512-_ _JL TMS27PC512-_ _FML 0 70 °C TMS27C512-_ _JE TMS27PC512-_ _FME − 40 85 °C NOTE 2: VCC must be applied before or at the same time as G / VPP and removed after or at the same time as G / VPP. The device must not be inserted into or removed from the board when VPP or VCC is applied. electrical characteristics over recommended ranges of supply voltage and operating free-air temperature PARAMETER TEST CONDITIONS IOH = − 2.5 mA IOH = − 20 µA VOH High-level dc output voltage VOL Low-level dc output voltage II IO Input current (leakage) IPP G / VPP supply current (during program pulse) ICC1 VCC supply current (standby) ICC2 VCC supply current (active) Output current (leakage) TTL-input level CMOS-input level TYP† MIN MAX UNIT 3.5 V VCC − 0.1 IOL = 2.1 mA IOL = 20 µA VI = 0 V to 5.5 V 0.4 VO = 0 V to VCC G / VPP = 13 V ±1 µA 35 50 mA 250 500 100 250 15 30 0.1 ±1 VCC = 5.5 V, . . . . . E = VIH VCC = 5.5 V, . . . . . E = VCC VCC = 5.5 V, E = VIL, tcycle = minimum cycle time, outputs open V µA µA A mA † Typical values are at TA = 25°C and nominal voltages. capacitance over recommended temperature, f = 1 MHz† ranges PARAMETER CI Input capacitance CO Output capacitance of supply voltage TEST CONDITIONS CG / VPP G / VPP input capacitance † Capacitance measurements are made on a sample basis only. ‡ Typical values are at TA = 25°C and nominal voltages. POST OFFICE BOX 1443 and operating MIN free-air TYP‡ MAX UNIT VI = 0 V, VO = 0 V, f = 1 MHz 6 10 pF f = 1 MHz 10 14 pF G / VPP = 0 V, f = 1 MHz 20 25 pF • HOUSTON, TEXAS 77251−1443 7 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 switching characteristics over recommended ranges of operating conditions TEST CONDITIONS (SEE NOTES 3 AND 4) PARAMETER ’27C512-10 ’27PC512-10 MIN MAX ’27C512-12 ’27PC512-12 MIN UNIT MAX ta(A) ta(E) Access time from address 100 120 ns Access time from chip enable 100 120 ns ten(G) tdis Output enable time from G / VPP 55 55 ns 45 ns tv(A) Output disable time from G / VPP or E, whichever occurs first† Output data valid time after change of address, E, or G / VPP, whichever occurs first† CL = 100 pF, 1 Series 74 TTL Load, Input tr ≤ 20 ns, Input tf ≤ 20 ns 0 45 0 0 TEST CONDITIONS (SEE NOTES 3 AND 4) PARAMETER 0 ns ’27C512-15 ’27PC512-15 MIN UNIT MAX ta(A) ta(E) Access time from address 150 ns Access time from chip enable 150 ns ten(G) tdis Output enable time from G / VPP 75 ns 60 ns tv(A) Output disable time from G / VPP or E, whichever occurs first† Output data valid time after change of address, E, or G / VPP, whichever occurs first† CL = 100 pF, 1 Series 74 TTL Load, Input tr ≤ 20 ns, Input tf ≤ 20 ns TEST CONDITIONS (SEE NOTES 3 AND 4) PARAMETER 0 0 ’27C512-20 ’27PC512-20 MIN MAX ns ’27C512-25 ’27PC512-25 MIN UNIT MAX ta(A) ta(E) Access time from address 200 250 ns Access time from chip enable 200 250 ns ten(G) tdis Output enable time from G / VPP 75 100 ns 60 ns tv(A) Output disable time from G / VPP or E, whichever occurs first† Output data valid time after change of address, E, or G / VPP, whichever occurs first† CL = 100 pF, 1 Series 74 TTL Load, Input tr ≤ 20 ns, Input tf ≤ 20 ns 0 0 60 0 0 ns † Value calculated from 0.5 V delta to measured output level. This parameter is only sampled. NOTES: 3. For all switching characteristics, the input pulse levels are 0.4 V to 2.4 V. Timing measurements are made at 2 V for logic high and 0.8 V for logic low (see Figure 2). 4. Common test conditions apply for tdis except during programming. switching characteristics for programming: VCC = 6.50 V and G/VPP = 13 V (SNAP! Pulse), TA = 25°C (see Note 3) PARAMETER MIN MAX UNIT tdis(G) Disable time, output from G / VPP 0 130 ns NOTE 3: For all switching characteristics, the input pulse levels are 0.4 V to 2.4 V. Timing measurements are made at 2 V for logic high and 0.8 V for logic low. 8 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 timing requirements for programming MIN NOM MAX UNIT 95 100 105 µs tw(IPGM) tsu(A) Pulse duration, initial program Setup time, address 2 µs tsu(D) tsu(VPP Setup time, data 2 µs Setup time, G / VPP 2 µs tsu(VCC) th(A) Setup time, VCC 2 µs Hold time, address 0 µs th(D) th(VPP) Hold time, data 2 µs Hold time, G / VPP 2 µs trec(PG) tEHD Recovery time, G / VPP 2 tr(PG)G Rise time, G / VPP Data valid from E low µs 1 50 µs ns PARAMETER MEASUREMENT INFORMATION 2.08 V RL = 800 Ω Output Under Test CL = 100 pF (see Note A) 2.4 V 0.4 V 2V 0.8 V 2V 0.8 V NOTES: A. CL includes probe and fixture capacitance. B. The ac testing inputs are driven at 2.4 V for logic high and 0.4 V for logic low. Timing measurements are made at 2 V for logic high and 0.8 V for logic low for both inputs and outputs. Figure 2. AC Testing Output Load Circuit POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 9 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 PARAMETER MEASUREMENT INFORMATION VIH A0 −A15 Addresses Valid VIL ta(A) VIH E VIL ta(E) VIH G / VPP ten(G) VIL tdis tv(A) VOH DQ0 −DQ7 Output Valid Hi-Z Hi-Z VOL Figure 3. Read-Cycle Timing VIH Address Stable A0 −A15 VIL tsu(A) th(A) VIH / VOH Data-In Stable DQ0 −DQ7 Hi-Z Data-Out Valid VIL / VOL tsu(D) tdis(G)† th(D) tEHD G / VPP th(VPP) VPP VIL tsu(VPP) tr(PG)G trec(PG) VIH E tsu(VCC) VIL tw(IPGM) VCC‡ VCC VCC † tdis(G) is a characteristic of the device but must be accommodated by the programmer. ‡ 13-V G / VPP and 6.5-V VCC for SNAP! Pulse programming. Figure 4. Program-Cycle Timing (SNAP! Pulse Programming) 10 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 FM (R-PQCC-J32) PLASTIC J-LEADED CHIP CARRIER Seating Plane 0.004 (0,10) 0.140 (3,56) 0.132 (3,35) 0.495 (12,57) 4 0.485 (12,32) 0.129 (3,28) 0.123 (3,12) 0.453 (11,51) 0.447 (11,35) 0.049 (1,24) 0.043 (1,09) 1 0.008 (0,20) NOM 30 29 5 0.020 (0,51) 0.015 (0,38) 0.595 (15,11) 0.585 (14,86) 0.553 (14,05) 0.547 (13,89) 0.030 (0,76) TYP 21 13 14 20 0.050 (1,27) 4040201-4 / B 03/95 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-016 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 11 SMLS512G − NOVEMBER 1985 − REVISED SEPTEMBER 1997 J (R-CDIP-T**) CERAMIC SIDE-BRAZE DUAL-IN-LINE PACKAGE 24 PIN SHOWN B 13 24 C 12 1 Lens Protrusion 0.010 (0,25) MAX 0.065 (1,65) 0.045 (1,14) 0.090 (2,29) 0.060 (1,53) 0.018 (0,46) MIN 0.175 (4,45) 0.140 (3,56) A Seating Plane 0°−ā 10° 0.125 (3,18) MIN 0.022 (0,56) 0.014 (0,36) 0.100 (2,54) PINS** A B C 24 NARR DIM 0.012 (0,30) 0.008 (0,20) 32 28 WIDE NARR WIDE NARR 40 WIDE NARR WIDE MAX 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) MIN 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) MAX 1.265(32,13) 1.265(32,13) 1.465(37,21) 1.465(37,21) 1.668(42,37) 1.668(42,37) 2.068(52,53) 2.068(52,53) MIN 1.235(31,37) 1.235(31,37) 1.435(36,45) 1.435(36,45) 1.632(41,45) 1.632(41,45) 2.032(51,61) 2.032(51,61) MAX 0.541(13,74) 0.598(15,19) 0.541(13,74) 0.598(15,19) 0.541(13,74) 0.598(15,19) 0.541(13,74) 0.598(15,19) MIN 0.514(13,06) 0.571(14,50) 0.514(13,06) 0.571(14,50) 0.514(13,06) 0.571(14,50) 0.514(13,06) 0.571(14,50) 4040084 / B 04/95 NOTES: A. B. C. D. 12 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 only on press ceramic glass frit seal only. POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 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. 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