M27W512-100K6

M27W512 512 Kbit (64 Kbit x8) low-voltage OTP EPROM Features ■ ■ ■ ■ 2.7 to 3.6 V supply voltage in read operation Access time: 100 ns Pin compatibility with M27C512 Low power consumption – 15 µA max Standby current – 15 mA max Active current at 5 MHz Programming time 100 µs/byte High reliability CMOS technology – 2000 V ESD protection – 200 mA latch-up protection immunity Electronic signature – Manufacturer code: 20h – Device code: 3Dh ECOPACK® packages PLCC32 (K) ■ ■ ■ ■ June 2008 Rev 4 1/22 www.st.com 1 Contents M27W512 Contents 1 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 Read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Two line output control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 System considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PRESTO IIB programming algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Program inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Program verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 4 5 6 7 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 M27W512 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Read mode DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Read mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Programming mode DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Margin mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Programming mode AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 PLCC32 - 32 lead plastic leaded chip carrier, package mechanical data. . . . . . . . . . . . . . 19 Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3/22 List of figures M27W512 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 LCC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Programming flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 AC testing input output waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Read mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Margin mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Programming and verify mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 PLCC32 - 32 lead plastic leaded chip carrier, package outline . . . . . . . . . . . . . . . . . . . . . 19 4/22 M27W512 Description 1 Description The M27W512 is a low-voltage, 512 Kbit OTP (one-time programmable) EPROM. It is ideally suited to microprocessor systems and are organized as 65536 by 8 bits. The M27W512 operates in the read mode with a supply voltage as low as 2.7 V at –40 to 85 °C temperature range. The decrease in operating power allows either a reduction of the size of the battery or an increase in the time between battery recharges. For applications where the content is programmed only one time and erasure is not required, the M27W512 is offered in PLCC32 packages. Figure 1. Logic diagram VCC 16 A0-A15 8 Q0-Q7 E GVPP M27W512 VSS AI01584 5/22 Description Table 1. Signal names Function Address inputs Data outputs Chip Enable Output Enable / Program supply Supply voltage Ground Not connected internally Don’t use M27W512 Signal names A0-A15 Q0-Q7 E GVPP VCC VSS NC DU Figure 2. LCC connections A7 A12 A15 DU VCC A14 A13 1 32 A6 A5 A4 A3 A2 A1 A0 NC Q0 A8 A9 A11 NC GVPP A10 E Q7 Q6 9 M27W512 25 17 Q1 Q2 VSS DU Q3 Q4 Q5 AI01585 6/22 M27W512 Device operation 2 Device operation The modes of operations of the M27W512 are listed in Table 2: Operating modes. A single power supply is required in the read mode. All inputs are TTL levels except for GVPP and 12V on A9 for Electronic Signature. 2.1 Read mode The M27W512 has two control functions, both of which must be logically active in order to obtain data at the outputs. Chip Enable (E) is the power control and should be used for device selection. Output Enable (G) is the output control and should be used to gate data to the output pins, independent of device selection. Assuming that the addresses are stable, the address access time (tAVQV) is equal to the delay from E to output (tELQV). Data is available at the output after a delay of tGLQV from the falling edge of G, assuming that E has been low and the addresses have been stable for at least tAVQV-tGLQV. 2.2 Standby mode The M27W512 has a standby mode which reduces the supply current from 15mA to 15µA with low voltage operation VCC ≤ 3.6V, see Table 7: Read mode DC characteristics. Characteristics table for details. The M27W512 is placed in the standby mode by applying a CMOS high signal to the E input. When in the standby mode, the outputs are in a high impedance state, independent of the GVPP input. Table 2. Operating modes(1) Mode Read Output Disable Program Program Inhibit Standby Electronic Signature 1. X = VIH or VIL, VID = 12V ± 0.5V. E VIL VIL VIL Pulse VIH VIH VIL GVPP VIL VIH VPP VPP X VIL A9 X X X X X VID Q7-Q0 Data Out Hi-Z Data In Hi-Z Hi-Z Codes Table 3. Electronic signature A0 VIL VIH Q7 0 0 Q6 0 0 Q5 1 1 Q4 0 1 Q3 0 1 Q2 0 1 Q1 0 0 Q0 0 1 Hex data 20h 3Dh Identifier Manufacturer code Device code 7/22 Device operation M27W512 2.3 Two line output control Because EPROMs are usually used in larger memory arrays, the product features a 2 line control function which accommodates the use of multiple memory connection. The two line control function allows: ● ● The lowest possible memory power dissipation Complete assurance that output bus contention will not occur. For the most efficient use of these two control lines, E should be decoded and used as the primary device selecting function, while G should be made a common connection to all devices in the array and connected to the READ line from the system control bus. This ensures that all deselected memory devices are in their low power standby mode and that the output pins are only active when data is required from a particular memory device. 2.4 System considerations The power switching characteristics of Advanced CMOS EPROMs require careful decoupling of the devices. The supply current, ICC, has three segments that are of interest to the system designer: the standby current level, the active current level, and transient current peaks that are produced by the falling and rising edges of E. The magnitude of the transient current peaks is dependent on the capacitive and inductive loading of the device at the output. The associated transient voltage peaks can be suppressed by complying with the two line output control and by properly selected decoupling capacitors. It is recommended that a 0.1µF ceramic capacitor be used on every device between VCC and VSS. This should be a high frequency capacitor of low inherent inductance and should be placed as close to the device as possible. In addition, a 4.7µF bulk electrolytic capacitor should be used between VCC and VSS for every eight devices. The bulk capacitor should be located near the power supply connection point.The purpose of the bulk capacitor is to overcome the voltage drop caused by the inductive effects of PCB traces. 8/22 M27W512 Figure 3. Programming flowchart VCC = 6.25V, VPP = 12.75V SET MARGIN MODE Device operation n=0 E = 100μs Pulse NO ++n = 25 YES NO VERIFY YES Last Addr NO ++ Addr FAIL YES RESET MARGIN MODE CHECK ALL BYTES 1st: VCC = 5V 2nd: VCC = 2.7V AI00738C 2.5 Programming The M27W512 has been designed to be fully compatible with the M27C512 and has the same electronic signature. As a result, the M27W512 can be programmed as the M27C512 on the same programming equipment applying 12.75V on VPP and 6.25V on VCC. The M27W512 can use PRESTO IIB Programming Algorithm that drastically reduces the programming time. Nevertheless to achieve compatibility with all programming equipment, PRESTO II Programming Algorithm can be used as well. When delivered, all bits of the M27W512 are in the '1' state. Data is introduced by selectively programming '0's into the desired bit locations. Although only '0's will be programmed, both '1's and '0's can be present in the data word. The M27W512 is in the programming mode when VPP input is at 12.75V and E is pulsed to VIL. The data to be programmed is applied to 8 bits in parallel to the data output pins. The levels required for the address and data inputs are TTL. VCC is specified to be 6.25V ± 0.25V. 9/22 Device operation M27W512 2.6 PRESTO IIB programming algorithm PRESTO IIB programming algorithm allows the whole array to be programmed with a guaranteed margin, in a typical time of 6.5 seconds. This can be achieved with STMicroelectronics M27W512 due to several design innovations described in the M27W512 datasheet to improve programming efficiency and to provide adequate margin for reliability. Before starting the programming the internal MARGIN MODE circuit must be set in order to guarantee that each cell is programmed with enough margin. Then a sequence of 100µs program pulses is applied to each byte until a correct verify occurs (see Figure 3). No overprogram pulses are applied since the verify in MARGIN MODE at VCC much higher than 3.6V, provides the necessary margin. 2.7 Program inhibit Programming of multiple devices in parallel with different data is also easily accomplished. Except for E, all like inputs including GVPP of the parallel M27W512 may be common. A TTL low level pulse applied to a M27W512 E input, with VPP at 12.75V, will program this device. A high level E input inhibits the other M27W512 from being programmed. 2.8 Program verify A verify (read) should be performed on the programmed bits to determine that they were correctly programmed. The verify is accomplished with G at VIL. Data should be verified with tELQV after the falling edge of E. 2.9 Electronic signature The Electronic Signature (ES) mode allows the reading out of a binary code from an EPROM that will identify its manufacturer and type. This mode is intended for use by programming equipment to automatically match the device to be programmed with its corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C ambient temperature range that is required when programming the M27W512. To activate the ES mode, the programming equipment must force 11.5V to 12.5V on address line A9 of the M27W512. Two identifier bytes may then be sequenced from the device outputs by toggling address line A0 from VIL to VIH. All other address lines must be held at VIL during Electronic Signature mode. Byte 0 (A0 = VIL) represents the manufacturer code and byte 1 (A0 = VIH) the device identifier code. For the STMicroelectronics M27W512, these two identifier bytes are given in Table 3 and can be read-out on outputs Q7 to Q0. Note that the M27W512 and M27C512 have the same identifier byte. 10/22 M27W512 Maximum rating 3 Maximum rating Stressing the device outside the ratings listed in Table 4 may cause permanent damage to the device. These are stress ratings only, and operation of the device at these, or any other conditions outside those indicated in the operating sections of this specification, is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4. Symbol TA TBIAS TSTG VIO(2) VCC VA9(2) VPP Ambient operating Absolute maximum ratings Parameter temperature(1) Value –40 to 125 –50 to 125 –65 to 150 –2 to 7 –2 to 7 –2 to 13.5 –2 to 14 Unit °C °C °C V V V V Temperature under bias Storage temperature Input or output voltage (except A9) Supply voltage A9 voltage Program supply voltage 1. Depends on range. 2. Minimum DC voltage on input or output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC voltage on Output is VCC +0.5V with possible overshoot to VCC +2V for a period less than 20ns. 11/22 DC and AC parameters M27W512 4 DC and AC parameters This section summarizes the operating and measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC Characteristic tables that follow are derived from tests performed under the Measurement Conditions summarized in the relevant tables. Designers should check that the operating conditions in their circuit match the measurement conditions when relying on the quoted parameters. Table 5. AC measurement conditions High speed Input rise and fall times Input pulse voltages Input and output timing ref. voltages ≤10ns 0 to 3V 1.5V Standard ≤20ns 0.4V to 2.4V 0.8V and 2V Figure 4. AC testing input output waveform High Speed 3V 1.5V 0V Standard 2.4V 2.0V 0.8V AI01822 0.4V Figure 5. AC testing load circuit 1.3V 1N914 3.3kΩ DEVICE UNDER TEST CL OUT CL = 30pF for High Speed CL = 100pF for Standard CL includes JIG capacitance AI01823B 12/22 M27W512 Table 6. Symbol CIN COUT DC and AC parameters Capacitance Parameter Input capacitance Output capacitance Test condition(1)(2) VIN = 0V VOUT = 0V Min Max 6 12 Unit pF pF 1. TA = 25°C, f = 1MHz 2. Sampled only, not 100% tested. Table 7. Symbol ILI ILO ICC ICC1 ICC2 IPP VIL VIH (2) Read mode DC characteristics Parameter Input leakage current Output leakage current Supply current Supply current (Standby) TTL Supply current (Standby) CMOS Program current Input low voltage Input high voltage Output low voltage Output high voltage TTL IOL = 2.1mA IOH = –1mA 2.4 Test condition(1) 0V ≤VIN ≤VCC 0V ≤VOUT ≤VCC E = VIL, G = VIL, IOUT = 0mA, f = 5MHz VCC ≤3.6V E = VIH E > VCC – 0.2V, VCC ≤3.6V VPP = VCC –0.6 0.7 VCC Min Max ±10 ±10 15 1 15 10 0.2 VCC VCC + 0.5 0.4 Unit µA µA mA mA µA µA V V V V VOL VOH 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 2. Maximum DC voltage on Output is VCC +0.5V. 13/22 DC and AC parameters Table 8. Read mode AC characteristics M27W512 Test condition (1) M27W512 -70(2) VCC = 3.0 to 3.6V Min Max 70 70 40 0 0 0 40 40 0 0 0 -80(2) VCC = 2.7 to 3.6V Min Max 80 80 50 50 50 -100 VCC = 2.7 to 3.6V Min Max 100 100 60 60 60 ns ns ns ns ns ns Unit Symbol Alt Parameter tAVQV tELQV tGLQV tEHQZ(3) tGHQZ(3) tAXQX tACC tCE tOE tDF tDF tOH Address valid to output valid Chip Enable low to output valid Output Enable low to output valid Chip Enable high to output Hi-Z Output Enable high to output Hi-Z Address transition to output transition E = VIL, G = VIL G = VIL E = VIL G = VIL E = VIL E = VIL, G = VIL 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 2. Speed obtained with High Speed AC measurement conditions. 3. Sampled only, not 100% tested. Figure 6. Read mode AC waveforms A0-A15 VALID tAVQV tAXQX VALID E tGLQV G tELQV Q0-Q7 tGHQZ Hi-Z tEHQZ AI00735B 14/22 M27W512 Table 9. Symbol ILI ICC IPP VIL VIH VOL VOH VID DC and AC parameters Programming mode DC characteristics Parameter Input leakage current Supply current Program current Input low voltage Input high voltage Output low voltage Output high voltage TTL A9 voltage IOL = 2.1mA IOH = –1mA 3.6 11.5 12.5 E = VIL –0.3 2 Test condition(1)(2) VIL ≤VIN ≤VIH Min Max ±10 50 50 0.8 VCC + 0.5 0.4 Unit µA mA mA V V V V V 1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V 2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. Table 10. Symbol tA9HVPH tVPHEL tA10HEH tA10LEH tEXA10X tEXVPX tVPXA9X Margin mode AC characteristics Alt tAS9 tVPS tAS10 tAS10 tAH10 tVPH tAH9 Parameter VA9 high to VPP high VPP high to Chip Enable low VA10 high to Chip Enable high (set) VA10 low to Chip Enable high (reset) Chip Enable transition to VA10 transition Chip Enable transition to VPP transition VPP transition to VA9 transition Test condition(1)(2) Min 2 2 1 1 1 2 2 Max Unit µs µs µs µs µs µs µs 1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V 2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 15/22 DC and AC parameters Figure 7. Margin mode AC waveforms VCC M27W512 A8 A9 tA9HVPH GVPP tVPHEL E tA10HEH A10 Set tEXA10X tEXVPX tVPXA9X A10 Reset tA10LEH AI00736B 1. A8 High level = 5V; A9 High level = 12V. Table 11. Symbol tAVEL tQVEL tVCHEL tVPHEL tVPLVPH tELEH tEHQX tEHVPX tVPLEL tELQV tEHQZ(3) tEHAX Programming mode AC characteristics Alt tAS tDS tVCS tOES tPRT tPW tDH tOEH tVR tDV tDFP tAH Parameter Address valid to Chip Enable low Input Valid to Chip Enable low VCC high to Chip Enable low VPP high to Chip Enable low VPP rise time Chip Enable program pulse width (Initial) Chip Enable high to input transition Chip Enable high to VPP transition VPP low to Chip Enable low Chip Enable low to output valid Chip Enable high to output Hi-Z Chip Enable high to address transition 0 0 Test condition(1)(2) Min 2 2 2 2 50 95 2 2 2 1 130 105 Max Unit µs µs µs µs ns µs µs µs µs µs ns ns 1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V 2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 3. Sampled only, not 100% tested. 16/22 M27W512 Figure 8. A0-A15 tAVEL Q0-Q7 tQVEL VCC tVCHEL GVPP tVPHEL E tELEH PROGRAM tVPLEL tEHVPX DATA IN tEHQX DC and AC parameters Programming and verify mode AC waveforms VALID tEHAX DATA OUT tEHQZ tELQV VERIFY AI00737 17/22 Package mechanical data M27W512 5 Package mechanical data In order to meet environmental requirements, ST offers the M27W512 in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at www.st.com. 18/22 M27W512 Figure 9. Package mechanical data PLCC32 - 32 lead plastic leaded chip carrier, package outline D D1 1N A1 A2 B1 E2 E3 E1 E e F 0.51 (.020) 1.14 (.045) D3 R CP A E2 B D2 D2 PLCC-A 1. Drawing is not to scale. Table 12. PLCC32 - 32 lead plastic leaded chip carrier, package mechanical data millimeters inches(1) Max 3.556 2.413 0.533 0.813 0.100 12.319 11.354 4.780 7.620 14.859 13.894 6.050 10.160 1.270 0.000 0.889 32 12.573 11.506 5.660 15.113 14.046 6.930 0.127 0.0350 0.4000 0.0500 0.3000 0.4850 0.4470 0.1882 0.5850 0.5470 0.2382 0.0000 32 Typ Min 0.1250 0.0602 0.0150 0.0130 0.0260 Max 0.1400 0.0950 0.0210 0.0320 0.0039 0.4950 0.4530 0.2228 0.5950 0.5530 0.2728 0.0050 - Symbol Typ A A1 A2 B B1 CP D D1 D2 D3 E E1 E2 E3 e F R N (number of pins) Min 3.175 1.530 0.381 0.330 0.660 1. Values in inches are converted from mm and rounded to 4 decimal digits. 19/22 Part numbering M27W512 6 Part numbering Table 13. Example: Ordering information scheme M27W512 -100 K6 TR Device type M27 Supply voltage W = 2.7 V to 3.6 V Device function 512 = 512 Kbit (64 Kb x 8) Speed -100= 100 ns Package K = PLCC32 Temperature range 6 = –40 to 85 °C Options Blank = Standard packing TR = Tape and reel packing For a list of available options (speed, package, etc.) or for further information on any aspect of this device, please contact your nearest ST sales office. 20/22 M27W512 Revision history 7 Revision history Table 14. Date Document revision history Revision Changes FDIP28W Package Dimension, L Max added (Table 12) TSOP32 Package Dimension changed (Table 13) 0 to 70°C Temperature Range deleted Speed Classes changed Typing error (Table 8) Package mechanical data clarified for FDIP28W (Table 12), PDIP28 (Table 13), PLCC32 (Table 12, Figure 9) and TSOP28 (Table 13, Figure 11) Details of ECOPACK lead-free package options added Document reformatted. FDIP28W and PDIP28 packages removed. 120, 150 and 200ns access times removed from Table 13: Ordering information scheme. Small text changes. UV range no longer offered (references to UV removed). TSOP28 package removed. Package mechanical data in inches calculated from millimeters and rounded to three decimals (see Table 12: PLCC32 - 32 lead plastic leaded chip carrier, package mechanical data). E and F options and 80 ns speed class removed from Table 13: Ordering information scheme. 20-Mar-2000 1.1 15-Jun-2001 30-Aug-2002 08-Nov-2004 1.2 1.3 2.0 27-Apr-2007 3 09-Jun-2008 4 21/22 M27W512 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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