CAT28LV65 64 kb CMOS Parallel EEPROM Description The CAT28LV65 is a low voltage, low power, CMOS Parallel EEPROM organized as 8K x 8−bits. It requires a simple interface for in−system programming. On−chip address and data latches, self−timed write cycle with auto−clear and VCC power up/down write protection eliminate additional timing and protection hardware. DATA Polling, RDY/BUSY and Toggle status bit signal the start and end of the self−timed write cycle. Additionally, the CAT28LV65 features hardware and software write protection. The CAT28LV65 is manufactured using ON Semiconductor’s advanced CMOS floating gate technology. It is designed to endure 100,000 program/erase cycles and has a data retention of 100 years. The device is available in JEDEC approved 28−pin DIP, 28−pin TSOP, 28−pin SOIC or 32−pin PLCC packages. http://onsemi.com PDIP−28 P, L SUFFIX CASE 646AE SOIC−28 J, K, W, X SUFFIX CASE 751BM Features • 3.0 V to 3.6 V Supply • Read Access Times: • • • • • • • • • • • – 150/200/250 ns Low Power CMOS Dissipation: – Active: 8 mA Max. – Standby: 100 mA Max. Simple Write Operation: – On−chip Address and Data Latches – Self−timed Write Cycle with Auto−clear Fast Write Cycle Time: – 5 ms Max. Commercial, Industrial and Automotive Temperature Ranges CMOS and TTL Compatible I/O Automatic Page Write Operation: – 1 to 32 bytes in 5 ms – Page Load Timer End of Write Detection: – Toggle Bit – DATA Polling – RDY/BUSY Hardware and Software Write Protection 100,000 Program/Erase Cycles 100 Year Data Retention These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant © Semiconductor Components Industries, LLC, 2009 October, 2009 − Rev. 7 1 TSOP−28 H13 SUFFIX CASE 318AE PLCC−32 N, G SUFFIX CASE 776AK PIN FUNCTION Pin Name A0−A12 I/O0−I/O7 Function Address Inputs Data Inputs/Outputs CE Chip Enable OE Output Enable RDY/BSY Ready/BUSY Status WE Write Enable VCC 3.0 V to 3.6 V Supply VSS Ground NC No Connect ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 15 of this data sheet. Publication Order Number: CAT28LV65/D CAT28LV65 PIN CONFIGURATIONS DIP Package (P, L) SOIC Package (J, K, W, X) 1 2 28 27 VCC WE A7 3 NC A8 A6 4 26 25 A9 A11 OE A5 A4 A3 5 6 24 A10 A2 7 8 22 21 A9 A11 OE A1 A0 9 19 CE I/O7 CE I/O7 18 I/O6 I/O0 10 11 20 19 18 I/O6 17 16 15 I/O5 I/O1 12 I/O5 I/O4 I/O3 I/O2 VSS 13 14 17 16 15 1 2 28 27 VCC WE A7 3 NC A6 4 26 25 A5 A4 A3 5 6 24 7 A2 8 22 21 A1 A0 9 20 I/O0 10 11 I/O1 12 RDY/BUSY A12 I/O2 VSS 13 14 23 RDY/BUSY A12 23 A8 A10 I/O4 I/O3 A7 A12 RDY/BUSY NC VCC WE NC PLCC Package (N, G) I/O1 I/O2 VSS NC I/O3 I/O4 I/O5 A6 A5 A4 A3 A2 A1 A0 NC I/O0 4 3 2 1 32 31 30 5 29 6 28 7 27 8 26 9 25 10 24 11 23 12 22 13 21 14 15 16 17 18 19 20 TSOP Package (8 mm x 13.4 mm) (H13) A8 A9 A11 NC OE A10 CE I/O7 I/O6 OE A11 A9 A8 NC WE VCC RDY/BUSY A12 A7 A6 A5 A4 A3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 (Top Views) http://onsemi.com 2 28 27 26 25 24 23 22 21 20 19 18 17 16 15 A10 CE I/O7 I/O6 I/O5 I/O4 I/O3 GND I/O2 I/O1 I/O0 A0 A1 A2 CAT28LV65 A5−A12 ADDR. BUFFER & LATCHES ROW DECODER VCC INADVERTENT WRITE PROTECTION HIGH VOLTAGE GENERATOR CE OE WE CONTROL LOGIC 32 BYTE PAGE REGISTER I/O BUFFERS DATA POLLING RDY/BUSY & TOGGLE BIT TIMER ADDR. BUFFER & LATCHES A0−A4 8,192 x 8 E2PROM ARRAY I/O0−I/O7 COLUMN DECODER RDY/BUSY Figure 1. Block Diagram Table 1. ABSOLUTE MAXIMUM RATINGS Parameters Ratings Units Temperature Under Bias –55 to +125 °C Storage Temperature –65 to +150 °C –2.0 V to +VCC + 2.0 V V −2.0 to +7.0 V Package Power Dissipation Capability (TA = 25°C) 1.0 W Lead Soldering Temperature (10 secs) 300 °C Output Short Circuit Current (Note 2) 100 mA Voltage on Any Pin with Respect to Ground (Note 1) VCC with Respect to Ground Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. The minimum DC input voltage is −0.5 V. During transitions, inputs may undershoot to −2.0 V for periods of less than 20 ns. Maximum DC voltage on output pins is VCC + 0.5 V, which may overshoot to VCC + 2.0 V for periods of less than 20 ns. 2. Output shorted for no more than one second. No more than one output shorted at a time. Table 2. RELIABILITY CHARACTERISTICS (Note 3) Symbol Parameter Test Method Min Max Units Endurance MIL−STD−883, Test Method 1033 105 Cycles/Byte TDR Data Retention MIL−STD−883, Test Method 1008 100 Years VZAP ESD Susceptibility MIL−STD−883, Test Method 3015 2,000 V Latch−Up JEDEC Standard 17 100 mA NEND ILTH (Note 4) 3. These parameters are tested initially and after a design or process change that affects the parameters. 4. Latch−up protection is provided for stresses up to 100 mA on address and data pins from −1 V to VCC + 1 V. Table 3. MODE SELECTION CE WE OE I/O Power Read Mode L H L DOUT ACTIVE Byte Write (WE Controlled) L H DIN ACTIVE L H DIN ACTIVE Byte Write (CE Controlled) Standby and Write Inhibit H X X High−Z STANDBY Read and Write Inhibit X H H High−Z ACTIVE http://onsemi.com 3 CAT28LV65 Table 4. CAPACITANCE (TA = 25°C, f = 1.0 MHz) Symbol Test Max Conditions Units CI/O (Note 5) Input/Output Capacitance 10 VI/O = 0 V pF CIN (Note 5) Input Capacitance 6 VIN = 0 V pF 5. This parameter is tested initially and after a design or process change that affects the parameter. Table 5. D.C. OPERATING CHARACTERISTICS (VCC = 3.0 V to 3.6 V, unless otherwise specified.) Limits Symbol Parameter Min Test Conditions Typ Max Units 8 mA 100 mA ICC VCC Current (Operating, TTL) CE = OE = VIL, f = 1/tRC min, All I/O’s Open ISBC (Note 6) VCC Current (Standby, CMOS) CE = VIHC, All I/O’s Open ILI Input Leakage Current VIN = GND to VCC −1 1 mA ILO Output Leakage Current VOUT = GND to VCC, CE = VIH −5 5 mA VIH (Note 6) High Level Input Voltage 2 VCC + 0.3 V VIL Low Level Input Voltage −0.3 0.6 V VOH High Level Output Voltage IOH = −100 mA VOL Low Level Output Voltage IOL = 1.0 mA VWI Write Inhibit Voltage 2 V 0.3 2 V V 6. VIHC = VCC − 0.3 V to VCC + 0.3 V. Table 6. A.C. CHARACTERISTICS, READ CYCLE (VCC = 3.0 V to 3.6 V, unless otherwise specified.) 28LV65−15 Symbol Parameter Min Max 150 28LV65−20 Min Max 200 28LV65−25 Min Max 250 Units tRC Read Cycle Time ns tCE CE Access Time 150 200 250 ns tAA Address Access Time 150 200 250 ns tOE OE Access Time 70 80 100 ns tLZ (Note 7) CE Low to Active Output 0 0 0 ns tOLZ (Note 7) OE Low to Active Output 0 0 0 ns tHZ (Notes 7, 8) CE High to High−Z Output 50 50 55 ns tOHZ (Notes 7, 8) OE High to High−Z Output 50 50 55 ns tOH (Note 7) Output Hold from Address Change 0 0 0 7. This parameter is tested initially and after a design or process change that affects the parameter. 8. Output floating (High−Z) is defined as the state when the external data line is no longer driven by the output buffer. http://onsemi.com 4 ns CAT28LV65 VCC − 0.3 V 2.0 V INPUT PULSE LEVELS REFERENCE POINTS 0.6 V 0.0 V Figure 2. A.C. Testing Input/Output Waveform (Note 9) 9. Input rise and fall times (10% and 90%) < 10 ns. VCC 1.8 K DEVICE OUTPUT UNDER TEST 1. 3 K CL = 100 pF CL INCLUDES JIG CAPACITANCE Figure 3. A.C. Testing Load Circuit (example) Table 7. A.C. CHARACTERISTICS, WRITE CYCLE (VCC = 3.0 V to 3.6 V, unless otherwise specified.) 28LV65−15 Symbol Min Parameter Max 28LV65−20 Min 5 Max 28LV65−25 Min 5 Max Units 5 ms tWC Write Cycle Time tAS Address Setup Time 0 0 0 ns tAH Address Hold Time 100 100 100 ns tCS CE Setup Time 0 0 0 ns tCH CE Hold Time 0 0 0 ns tCW (Note 10) CE Pulse Time 110 150 150 ns tOES OE Setup Time 0 10 10 ns tOEH OE Hold Time 0 10 10 ns tWP (Note 10) WE Pulse Width 110 150 150 ns tDS Data Setup Time 60 100 100 ns tDH Data Hold Time 0 0 0 ns Write Inhibit Period After Power−up 5 10 5 10 5 10 ms 0.05 100 0.1 100 0.1 100 ms 220 ns tINIT (Note 11) tBLC (Notes 11, 12) tRB Byte Load Cycle Time WE Low to RDY/BUSY Low 220 220 10. A write pulse of less than 20 ns duration will not initiate a write cycle. 11. This parameter is tested initially and after a design or process change that affects the parameter. 12. A timer of duration tBLC max. begins with every LOW to HIGH transition of WE. If allowed to time out, a page or byte write will begin; however a transition from HIGH to LOW within tBLC max. stops the timer. http://onsemi.com 5 CAT28LV65 DEVICE OPERATION Byte Write A write cycle is executed when both CE and WE are low, and OE is high. Write cycles can be initiated using either WE or CE, with the address input being latched on the falling edge of WE or CE, whichever occurs last. Data, conversely, is latched on the rising edge of WE or CE, whichever occurs first. Once initiated, a byte write cycle automatically erases the addressed byte and the new data is written within 5 ms. Read Data stored in the CAT28LV65 is transferred to the data bus when WE is held high, and both OE and CE are held low. The data bus is set to a high impedance state when either CE or OE goes high. This 2−line control architecture can be used to eliminate bus contention in a system environment. tRC ADDRESS tCE CE tOE OE tOLZ VIH WE tLZ tHZ tOH HIGH−Z DATA OUT tOHZ tAA DATA VALID DATA VALID Figure 4. Read Cycle tWC ADDRESS tAS tAH tCH tCS CE OE tOES tOEH tWP WE tRB tBLC HIGH−Z HIGH−Z RDY/BUSY DATA OUT DATA IN HIGH−Z DATA VALID tDS tDH Figure 5. Byte Write Cycle [WE Controlled] http://onsemi.com 6 CAT28LV65 Page Write in any order) during the first and subsequent write cycles. Each successive byte load cycle must begin within tBLC MAX of the rising edge of the preceding WE pulse. There is no page write window limitation as long as WE is pulsed low within tBLC MAX. Upon completion of the page write sequence, WE must stay high a minimum of tBLC MAX for the internal automatic program cycle to commence. This programming cycle consists of an erase cycle, which erases any data that existed in each addressed cell, and a write cycle, which writes new data back into the cell. A page write will only write data to the locations that were addressed and will not rewrite the entire page. The page write mode of the CAT28LV65 (essentially an extended BYTE WRITE mode) allows from 1 to 32 bytes of data to be programmed within a single EEPROM write cycle. This effectively reduces the byte−write time by a factor of 32. Following an initial WRITE operation (WE pulsed low, for tWP, and then high) the page write mode can begin by issuing sequential WE pulses, which load the address and data bytes into a 32 byte temporary buffer. The page address where data is to be written, specified by bits A5 to A12, is latched on the last falling edge of WE. Each byte within the page is defined by address bits A0 to A4 (which can be loaded tWC ADDRESS tAS tBLC tAH tCW CE tOEH OE tOES tCS tCH WE tRB HIGH−Z HIGH−Z RDY/BUSY HIGH−Z DATA OUT DATA VALID DATA IN tDS tDH Figure 6. Byte Write Cycle [CE Controlled] OE CE tWP tBLC WE ADDRESS tWC I/O LAST BYTE BYTE 0 BYTE 1 BYTE 2 BYTE n Figure 7. Page Mode Write Cycle http://onsemi.com 7 BYTE n+1 BYTE n+2 CAT28LV65 DATA Polling write cycle. While a write cycle is in progress, reading data from the device will result in I/O6 toggling between one and zero. However, once the write is complete, I/O6 stops toggling and valid data can be read from the device. DATA polling is provided to indicate the completion of write cycle. Once a byte write or page write cycle is initiated, attempting to read the last byte written will output the complement of that data on I/O7 (I/O0–I/O 6 are indeterminate) until the programming cycle is complete. Upon completion of the self−timed write cycle, all I/O’s will output true data during a read cycle. Ready/BUSY (RDY/BUSY) The RDY/BUSY pin is an open drain output which indicates device status during programming. It is pulled low during the write cycle and released at the end of programming. Several devices may be OR−tied to the same RDY/BUSY line. Toggle Bit In addition to the DATA Polling feature, the device offers an additional method for determining the completion of a ADDRESS CE WE tOEH tOES tOE OE tWC I/O7 DOUT = X DIN = X DOUT = X Figure 8. DATA Polling WE CE tOEH tOES tOE OE I/O6 (Note 13) (Note 13) tWC Figure 9. Toggle Bit 13. Beginning and ending state of I/O6 is indeterminate. http://onsemi.com 8 CAT28LV65 Hardware Data Protection 4. Noise pulses of less than 20 ns on the WE or CE inputs will not result in a write cycle. The following is a list of hardware data protection features that are incorporated into the CAT28LV65. 1. VCC sense provides for write protection when VCC falls below 2.0 V min. 2. A power on delay mechanism, tINIT (see AC characteristics), provides a 5 to 10 ms delay before a write sequence, after VCC has reached 2.40 V min. 3. Write inhibit is activated by holding any one of OE low, CE high or WE high. WRITE DATA: ADDRESS: WRITE DATA: ADDRESS: WRITE DATA: ADDRESS: Software Data Protection The CAT28LV65 features a software controlled data protection scheme which, once enabled, requires a data algorithm to be issued to the device before a write can be performed. The device is shipped from ON Semiconductor with the software protection NOT ENABLED (the CAT28LV65 is in the standard operating mode). AA WRITE DATA: 1555 ADDRESS: 55 WRITE DATA: 0AAA ADDRESS: A0 WRITE DATA: 1555 ADDRESS: WRITE DATA: SOFTWARE DATA PROTECTION ACTIVATED (Note 14) WRITE DATA: ADDRESS: XX WRITE DATA: TO ANY ADDRESS ADDRESS: WRITE LAST BYTE TO LAST ADDRESS WRITE DATA: ADDRESS: Figure 10. Write Sequence for Activating Software Data Protection AA 1555 55 0AAA 80 1555 AA 1555 55 0AAA 20 1555 Figure 11. Write Sequence for Deactivating Software Data Protection 14. Write protection is activated at this point whether or not any more writes are completed. Writing to addresses must occur within tBLC Max., after SDP activation. http://onsemi.com 9 CAT28LV65 Software Data Protection This gives the user added inadvertent write protection on power−up in addition to the hardware protection provided. To allow the user the ability to program the device with an EEPROM programmer (or for testing purposes) there is a software command sequence for deactivating the data protection. The six step algorithm (Figure 11) will reset the internal protection circuitry, and the device will return to standard operating mode (Figure 13 provides reset timing). After the sixth byte of this reset sequence has been issued, standard byte or page writing can commence. To activate the software data protection, the device must be sent three write commands to specific addresses with specific data (Figure 10). This sequence of commands (along with subsequent writes) must adhere to the page write timing specifications (Figure 12). Once this is done, all subsequent byte or page writes to the device must be preceded by this same set of write commands. The data protection mechanism is activated until a deactivate sequence is issued regardless of power on/off transitions. DATA ADDRESS AA 1555 55 0AAA tWC A0 1555 BYTE OR PAGE CE tWP WRITES ENABLED tBLC WE Figure 12. Software Data Protection Timing DATA ADDRESS AA 1555 55 0AAA 80 1555 AA 1555 55 0AAA 20 1555 tWC SDP RESET CE DEVICE UNPROTECTED WE Figure 13. Resetting Software Data Protection Timing http://onsemi.com 10 CAT28LV65 PACKAGE DIMENSIONS PLCC 32 CASE 776AK−01 ISSUE O PIN#1 IDENTIFICATION E1 E E2 D1 A2 D A3 TOP VIEW END VIEW b1 b e D2 SIDE VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MS-016. SYMBOL MIN A2 0.38 A3 2.54 2.80 11 MAX b 0.33 0.54 b1 0.66 0.82 D 12.32 12.57 D1 11.36 11.50 D2 9.56 11.32 E 14.86 15.11 E1 13.90 14.04 E2 12.10 13.86 e http://onsemi.com NOM 1.27 BSC CAT28LV65 PACKAGE DIMENSIONS SOIC−28, 300 mils CASE 751BM−01 ISSUE O SYMBOL MIN A 2.35 2.65 A1 0.10 0.30 A2 2.05 2.55 b 0.31 0.51 c 0.20 0.33 D 17.78 18.03 E 10.11 10.51 E1 7.34 E NOM 7.60 e b e PIN #1 IDENTIFICATION MAX 1.27 BSC h 0.25 0.75 L 0.40 1.27 θ 0º 8º θ1 5º 15º TOP VIEW h D A2 A A1 h q1 q q1 c L E1 SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-013. http://onsemi.com 12 CAT28LV65 PACKAGE DIMENSIONS PDIP−28, 600 mils CASE 646AE−01 ISSUE A SYMBOL MIN NOM A E1 E D 6.35 A1 0.39 A2 3.18 4.95 b 0.36 0.55 b1 0.77 1.77 c 0.21 0.38 D 35.10 39.70 E 15.24 15.87 E1 12.32 e TOP VIEW A2 14.73 2.54 BSC eB 15.24 17.78 L 2.93 5.08 A c A1 b1 e L b eB SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MS-011. http://onsemi.com 13 MAX CAT28LV65 PACKAGE DIMENSIONS TSOP 28, 8x13.4 CASE 318AE−01 ISSUE O D1 A PIN 1 b E1 e A1 A2 D TOP VIEW END VIEW q1 c q L2 L L1 SIDE VIEW SYMBOL MIN NOM MAX A 1.00 1.10 1.20 A1 0.05 A2 0.90 1.00 1.05 b 0.17 0.22 0.27 c 0.10 0.15 0.20 D 13.20 13.40 13.60 D1 11.70 11.80 11.90 E 7.90 8.00 8.10 e 0.55 BSC L 0.30 L1 0.675 L2 Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-183. http://onsemi.com 14 0.15 0.50 0.70 0.25 BSC θ 0° 3° 5° θ1 10° 12° 16° CAT28LV65 Example of Ordering Information (Note 15) Prefix Device # Suffix CAT 28LV65 N Company ID (Optional) Product Number 28LV65 I − 25 Tape & Reel (Note 18) T: Tape & Reel Temperature Range Blank = Commercial (0°C to +70°C) I = Industrial (−40°C to +85°C) A = Automotive (−40°C to +105°C) (Note 17) Package P: PDIP (Note 16) J: SOIC (JEDEC) (Note 16) K: SOIC (EIAJ) (Note 16) N: PLCC (Note 16) L: PDIP (Lead Free, Halogen Free) W: SOIC (JEDEC) (Lead Free, Halogen Free) X: SOIC (EIAJ) (Lead Free, Halogen Free) G: PLCC (Lead Free, Halogen Free) H13: TSOP (8 mm x 13.4 mm) (Lead Free, Halogen Free) T Speed 15: 150 ns 20: 200 ns 25: 250 ns 15. The device used in the above example is a CAT28LV65NI−25T (PLCC, Industrial temperature, 250 ns Access Time, Tape & Reel). 16. Solder−plate (tin−lead) packages, contact Factory for availability. 17. −40°C to +125°C is available upon request. 18. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. ORDERING INFORMATION Orderable Part Numbers (for Pb−Free Devices) CAT28LV65GI−15T CAT28LV65H13A15T CAT28LV65WI−15T CAT28LV65XA−15T CAT28LV65GI−20T CAT28LV65H13A20T CAT28LV65WI−20T CAT28LV65XA−20T CAT28LV65GI−25T CAT28LV65H13A25T CAT28LV65WI−25T CAT28LV65XA−25T CAT28LV65GA−15T CAT28LV65LI15 CAT28LV65WA−15T CAT28LV65GA−20T CAT28LV65LI20 CAT28LV65WA−20T CAT28LV65GA−25T CAT28LV65LI25 CAT28LV65WA−25T CAT28LV65H13I15T CAT28LV65LA15 CAT28LV65XI−15T CAT28LV65H13I20T CAT28LV65LA20 CAT28LV65XI−20T CAT28LV65H13I25T CAT28LV65LA25 CAT28LV65XI−25T ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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