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Technical content

Features

  • Continuous Brightness Control
  • Serial Data Input
  • No Load Signal Requirement
  • Enable (MM5450 Only)
  • Wide Power Supply Operation
  • TTL Compatibility
  • 34 or 35 Outputs, 15 mA Capability
  • Alphanumeric Capability

Applications

  • Industrial Control Indicator
  • Relay Driver
  • Digital Clock, Thermometer, Counter, Voltmeter
  • Instrumentation Readouts General Description The MM5450 and MM5451 LED display drivers are monolithic MOS IC’s fabricated in an N-Channel, metal-gate process. The technology produces low-threshold, enhancement-mode, and ion-implanted depletion-mode devices. A single pin controls the LED display brightness by setting a reference current through a variable resistor connected to the supply. Block Diagram

35 OUTPUT BUFFERS

35 LATCHES

(only available in die form) SERIAL DATA 22 CLOCK 21 DATA ENABLE/OUT 35 (See Note 1) 20 24 OUT 34 OUT 1 BRIGHTNESS CONTROL VDD Note 1: Pin in Data Enable in MM5450 Pin in Output 25 in MM5451 LED Display Driver

DS20005651A-page 2  2016 Microchip Technology Inc. Connection Diagram: Die V OUTPUT BIT 24 MM5450/5451 DIE PINOUT OUTPUT BIT 25 OUTPUT BIT 26 OUTPUT BIT 27 OUTPUT BIT 28 OUTPUT BIT 29 OUTPUT BIT 30 OUTPUT BIT 31 OUTPUT BIT 32 OUTPUT BIT 33 SS V OUTPUT BIT 13 OUTPUT BIT 14 OUTPUT BIT 15 OUTPUT BIT 16 OUTPUT BIT 17 OUTPUT BIT 22 OUTPUT BIT 23 OUTPUT BIT 18 OUTPUT BIT 19 OUTPUT BIT 20 OUTPUT BIT 21 SS V SS OUTPUT BIT 12 OUTPUT BIT 11 OUTPUT BIT 10 OUTPUT BIT 9 OUTPUT BIT 8 OUTPUT BIT 7 OUTPUT BIT 6 OUTPUT BIT 5 OUTPUT BIT 4 OUTPUT BIT 3 V OUTPUT BIT 34 OUTPUT BIT 35 ENABLE DATA CLK BRIGTNESS CONTROL RESET OUTPUT BIT 1 OUTPUT BIT 2 DD

 2016 Microchip Technology Inc. DS20005651A-page 3 MM5450/51 Connection Diagram: Dual-Inline Package (DIP) Connection Diagram: Plastic-Leaded Chip Carrier (PLCC) 1 40 2 39 3 38 4 37 5 36 6 35 7 34 8 33 9 32 10 31 11 30 12 29 13 28 14 27 15 26 16 25 17 24 18 23 19 22 20 21 OUTPUT BIT 18 CLOCK IN MM5450YN V SS V DD OUTPUT BIT 17 OUTPUT BIT 16 OUTPUT BIT 15 OUTPUT BIT 14 OUTPUT BIT 13 OUTPUT BIT 12 OUTPUT BIT 11 OUTPUT BIT 10 OUTPUT BIT 9 OUTPUT BIT 8 OUTPUT BIT 7 OUTPUT BIT 6 OUTPUT BIT 5 OUTPUT BIT 4 OUTPUT BIT 3 OUTPUT BIT 2 OUTPUT BIT 1 BRIGHTNESS CONTROL DATA IN DATA ENABLE OUTPUT BIT 19 OUTPUT BIT 20 OUTPUT BIT 21 OUTPUT BIT 22 OUTPUT BIT 23 OUTPUT BIT 24 OUTPUT BIT 25 OUTPUT BIT 26 OUTPUT BIT 27 OUTPUT BIT 28 OUTPUT BIT 29 OUTPUT BIT 30 OUTPUT BIT 31 OUTPUT BIT 32 OUTPUT BIT 33 OUTPUT BIT 34 1 40 2 39 3 38 4 37 5 36 6 35 7 34 8 33 9 32 10 31 11 30 12 29 13 28 14 27 15 26 16 25 17 24 18 23 19 22 20 21 OUTPUT BIT 18 CLOCK IN MM5451YN V SS V DD OUTPUT BIT 17 OUTPUT BIT 16 OUTPUT BIT 15 OUTPUT BIT 14 OUTPUT BIT 13 OUTPUT BIT 12 OUTPUT BIT 11 OUTPUT BIT 10 OUTPUT BIT 9 OUTPUT BIT 8 OUTPUT BIT 7 OUTPUT BIT 6 OUTPUT BIT 5 OUTPUT BIT 4 OUTPUT BIT 3 OUTPUT BIT 2 OUTPUT BIT 1 BRIGHTNESS CONTROL DATA IN OUTPUT BIT 19 OUTPUT BIT 20 OUTPUT BIT 21 OUTPUT BIT 22 OUTPUT BIT 23 OUTPUT BIT 24 OUTPUT BIT 25 OUTPUT BIT 26 OUTPUT BIT 27 OUTPUT BIT 28 OUTPUT BIT 29 OUTPUT BIT 30 OUTPUT BIT 31 OUTPUT BIT 32 OUTPUT BIT 33 OUTPUT BIT 34 OUTPUT BIT 35 MM5450YV VSS OUTPUT BIT 15 OUTPUT BIT 14 OUTPUT BIT 16 OUTPUT BIT 17 OUTPUT BIT 13 OUTPUT BIT 12 OUTPUT BIT 11 OUTPUT BIT 10 OUTPUT BIT 9 OUTPUT BIT 8 OUTPUT BIT 7 OUTPUT BIT 6 OUTPUT BIT 5 OUTPUT BIT 4 OUTPUT BIT 23 OUTPUT BIT 24 OUTPUT BIT 25 OUTPUT BIT 26 OUTPUT BIT 27 NC OUTPUT BIT 28 OUTPUT BIT 29 OUTPUT BIT 30 OUTPUT BIT 31 OUTPUT BIT 32 NC 6 44 43 42 41 40 NC OUTPUT BIT 18 OUTPUT BIT 19 OUTPUT BIT 20 OUTPUT BIT 21 OUTPUT BIT 3 OUTPUT BIT 2 OUTPUT BIT 1 BRIGHTNESS CONTROL NC CLOCK IN DATA IN DATA ENABLE OUTPUT BIT 34 OUTPUT BIT 33 232221201918 24 25 26 27 28 OUTPUT BIT 22 VDD MM5451YV VSS OUTPUT BIT 14 OUTPUT BIT 15 OUTPUT BIT 16 OUTPUT BIT 17 OUTPUT BIT 13 OUTPUT BIT 12 OUTPUT BIT 11 OUTPUT BIT 10 OUTPUT BIT 9 OUTPUT BIT 8 OUTPUT BIT 7 OUTPUT BIT 6 OUTPUT BIT 5 OUTPUT BIT 4 OUTPUT BIT 23 OUTPUT BIT 24 OUTPUT BIT 25 OUTPUT BIT 26 OUTPUT BIT 27 NC OUTPUT BIT 28 OUTPUT BIT 29 OUTPUT BIT 30 OUTPUT BIT 31 OUTPUT BIT 32 NC 6 44 43 42 41 40 NC OUTPUT BIT 18 OUTPUT BIT 19 OUTPUT BIT 20 OUTPUT BIT 21 OUTPUT BIT 3 OUTPUT BIT 2 OUTPUT BIT 1 BRIGHTNESS CONTROL NC CLOCK IN DATA IN OUTPUT BIT 35 OUTPUT BIT 34 OUTPUT BIT 33 232221201918 24 25 26 27 28 OUTPUT BIT 22 VDD

DS20005651A-page 4  2016 Microchip Technology Inc.

1.0 ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings † Operating Ratings ‡ † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this s pecification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. ‡ Notice: The device is not guaranteed to function outside its operating ratings.

 2016 Microchip Technology Inc. DS20005651A-page 5 MM5450/51 TABLE 1-1: ELECTRICAL CHARACTERISTICS Electrical Characteristics: 4.5V ≤ VDD ≤ 11V, VSS = 0V; TA = 25°C, bold values valid for –40°C ≤ TA ≤ +85°C, unless otherwise noted. Parameter Symbol Min. Typ. Max. Units Conditions Power Supply Current — —— 8.5 mA –25°C to +85°C, excluding output loads —— 10 –40°C to +85°C, excluding output loads Data Input Voltage VL –0.3 — 0.8 V Logic-0 level, ±10 µA input bias VH 2.2 — VDD Logic-1 level, 4.75V ≤ VDD ≤ 5.25V — VDD – 2 — VDD VDD > 5.25V Brightness Control Input Current — 0 — 0.75 mA Note 1 Output Sink Current — —— 10 µA Segment off, VOUT = 3.0V 0 — 10 Segment on, VOUT = 1.8V, Note 2; Brightness input = 0 µA 2.0 2.7 4 mA Segment on, VOUT = 1.8V, Note 2; Brightness input = 100 µA 15 — 25 Segment on, VOUT = 1.8V, Note 2; Brightness input = 750 µA Brightness Control Input Voltage — 3.0 — 4.3 V Input current = 750 µA Output Matching — — — ±20 % Note 3, Note 4 Clock Input Frequency f C —— 500 kHz Note 5, Note 6 Clock Input High Time t H 950 ——n s Note 5, Note 6 Clock Input Low Time t L 950 ——n s Note 5, Note 6 Data Input Setup Time t DS 300 ——n s — Data Input Hold Setup Time tDH 300 ——n s — Data Enable Input Setup Time tDES 100 ——n s — Reset Pad Current — –8 — 8 µA Die. Note 1: With a fixed resistor on the brightness input pin, some variation in brightness will occur among devices. 2: See Figure 2-1, Figure 2-2, and Figure 2-3 for recommended operating conditions and limits. Absolute maximum for each output should be limited to 40 mA. 3: Output matching is calculated as the percent variation of (IMAX + IMIN) / 2. 4: VOUT should be regulated by user. See Figure 2-2 and Figure 2-3 for allowable VOUT vs. IOUT operation. 5: AC input waveform specification for test purpose: tR ≤ 200 ns, tF ≤ 20 ns, f = 500 kHz, 50% ±10% duty cycle. 6: Clock input rise and fall times must not exceed 300 ns.

DS20005651A-page 6  2016 Microchip Technology Inc. TEMPERATURE SPECIFICATIONS (Note 1) Parameters Sym. Min. Typ. Max. Units Conditions Temperature Ranges Ambient Temperature Range T A –40 — +85 °C — Storage Temperature Range T S –65 — +150 °C — Junction Temperature T J — — +150 °C — Lead Temperature — — — +300 °C — Note 1: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +125°C rating. Sustained junction temperatures above +125°C can impact the device reliability.

 2016 Microchip Technology Inc. DS20005651A-page 7 MM5450/51

2.0 TYPICAL PERFORMANCE CURVES

FIGURE 2-1: Output Current vs. Number of Segments. FIGURE 2-2: Output Voltage vs. LED Current. FIGURE 2-3: Power Dissipation vs. Temperature. Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or t ables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. 110 100 0 5 10 15 20 25 30 35 NUMBER OF SEGMENTS OUTPUT CURRENT (mA) V = 1VOUT V = 1.5VOUT V = 2VOUT T = 85°CA 2.5 2.0 1.5 1.0 0.5 048 1 2 1 6 2 0 2 4 2 8 I (mA)LED V (V )OUT O T = 85°C T = 150°C (MAX) A J

20 SEGM

30 SEGM

34 SEGM

1.0 0.8 0.6 0.4 0.2 02 0 4 0 6 0 8 0 TEMPERATURE (°C) POWER DISSIPATION (W)

34 SEGMENTS

V = 1V 15 mA/SEGMENT OUT SAFE OPERATING AREA 100

DS20005651A-page 8  2016 Microchip Technology Inc.

3.0 FUNCTIONAL DESCRIPTION

The MM5450 and MM5451 are designed to drive either 4- or 5-digit alphanumeric LED displays with the added benefit of requiring minimal interface with the display or data source. Data is transferred serially via two signals: clock and serial data. Data transfer without the added inconvenience of an external load signal is accomplished by using a format of a leading “1” followed by the allowed 35 data bits. These 35 data bits are latched after the 36th has been transferred. This scheme provides non-multiple xed, direct drive to the LED display. Characters currently displayed (thus, data output) changes only if the serial data bits differ from those previously transferred. Control of the output current for LED displays provides for the display brightness. To prevent oscillations, a 1 nF capacitor should be connected to pin 19, brightness control. The Block Diagram is shown on page 1. For the MIC5450, the /DATA ENABLE is a metal option and is used instead of the 35th output. The output current is typically 20-times greater than the current into pin 19, which is set by an external variable resistor. There is an external reset connection shown which is available on unpackaged (die) only. Connection Diagram: Die illustrates the die pad locations for bonding in “chip on board” applications. Figure 3-1 shows the input data format. A leading “1” is followed by 35 bits of data. After the 36th had been transferred, a LOAD signal is generated synchronously with the clock high state. This loads the 35 bits of data into the latches. The low side of the clock is used to generate a RESET signal which clears all shift registers for the next set of data. All shift registers are static master-slave, with no clear for the master portion of the first register, allowing continuous operation. FIGURE 3-1: Input Data Format. There must be a complete set of 36 clocks or the shift registers will not clear. When the chip first powers ON, an internal power ON reset signal is generated that resets all registers and all latches. The START bit and the first clock return the chip to its normal operation. The Connection Diagram: Dual-Inline Package (DIP) and Connection Diagram: Plastic-Leaded Chip Carrier (PLCC) show the pinout of the MIC5450 and MIC5451. Bit 1 is the first bit following the start bit and it will appear on pin 18. A logical “1” at the input will turn on the appropriate LED. Figure 3-2 shows the timing relationships between data, clock and /DATA EN ABLE. A maximum clock frequency of 0.5 MHz is assumed. FIGURE 3-2: Timing Diagram. For applications where a lesser number of outputs is used, it is possible to ei ther increase the current per output, or operate the part at higher than 1V VOUT. The following equation can be used for calculations. EQUATION 3-1: Equation 3-1 is used to plot Figure 2-1, Figure 2-2, and Figure 2-3. CLOCK DATA LOAD (INTERNAL) RESET (INTERNAL) START BIT 1 BIT 36 36 37 BIT 35 CLOCK DATA DATA ENABLE 300 nS MIN 100 nS MIN TJ VOUT ILED No of segments 124oC/W TA+= Where: TJ Junction Temperature (+150°C max.) VOUT Voltage at the LED driver outputs ILED LED current 124°C/W Thermal resistance of the package TA Ambient temperature

 2016 Microchip Technology Inc. DS20005651A-page 9 MM5450/51

4.0 TYPICAL APPLICATIONS

FIGURE 4-1: Typical Application of Constant Current Brightness Control. FIGURE 4-2: Brightness Control Varying the Duty Cycle. FIGURE 4-3: Basic Electronically Tuned Radio System. LM324 MM5450 LM317 240 ȍ RAW DC 1KI19 = 2N2907 I19 PIN 199 CD4046 (VCO) MM74HC123 10 μS MM5450Q1 9 LED DISPLAY MM5450 DISPLAY DRIVER ELECTRONIC TUNING CONTROLLER PLL SYNTHESIZERKEYBOARD STATION DETECT, ETC. AM FM

DS20005651A-page 10  2016 Microchip Technology Inc. FIGURE 4-4: Duplexing Eight Digits with One MM5450. 9–16 2–8, 40 32–39 24–31 18 21 22 19 20 1 23 17 100k TYP. MM5450 VLED VLED VLED = 3.0V VLED = 3.0V CLOCK IN DATA IN VDD BRIGHTNESS CONTROL

 2016 Microchip Technology Inc. DS20005651A-page 11 MM5450/51

5.0 PACKAGING INFORMATION

5.1 Package Marking Information

40-Pin PDIP* Example XXXXXX WNNN XXXXXXXX MICREL 6235 MM5451YN 44-Pin PLCC* Example XXXXXX WNNN XXXXXXXX MICREL 8943 MM5450YV Legend: XX...X Product code or cust omer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code Pb-free JEDEC ® designator for Matte Tin (Sn) * This package is Pb-free. The Pb-free JEDEC designator ( ) can be found on the outer packaging for this package.

  • , ▲, ▼ Pin one index is identified by a dot, delta up, or delta down (triangle mark). Note: In the event the full Microchip part numbe r cannot be marked on one line, it will be carried over to the next line, t hus limiting the number of available characters for customer-specific information. Package may or may not include the corporate logo. Underbar (_) and/or Overbar (⎯) symbol may not be to scale.

DS20005651A-page 12  2016 Microchip Technology Inc. 40-Lead PDIP Package Outline and Recommended Land Pattern Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging.

 2016 Microchip Technology Inc. DS20005651A-page 13 MM5450/51 44-Lead PLCC Package Outline and Recommended Land Pattern Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging.

DS20005651A-page 14  2016 Microchip Technology Inc. NOTES:

 2016 Microchip Technology Inc. DS20005651A-page 15 MM5450/51 APPENDIX A: REVISION HISTORY Revision A (October 2016)

  • Converted Micrel docume nt MM5450/51 to Micro- chip data sheet DS20005651A.
  • Minor text changes throughout.
  • Corrected Pin 26 of the MM5451YV in Connection Diagram: Plastic-Leaded Chip Carrier (PLCC) to read Output Bit 35.
  • Corrected the minimum value for Reset Pad Cur- rent in Table 1-1 to be –8 µA.

DS20005651A-page 16  2016 Microchip Technology Inc. NOTES:

 2016 Microchip Technology Inc. DS20005651A-page 17 MM5450/51 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office. Examples: a) MM5450YN: LED Display Driver with Enable –40°C to +85°C Junction Temperature Range, 40-Lead PDIP, 9/Tube b) MM5450YV: LED Display Driver with Enable –40°C to +85°C Junction Temperature Range, 44-Lead PLCC, 26/Tube c) MM5450YV-TR: LED Display Driver with Enable –40°C to +85°C Junction Temperature Range, 44-Lead PLCC, 500/Reel a) MM5451YN: LED Display Driver –40°C to +85°C Junction Temperature Range, 40-Lead PDIP, 9/Tube b) MM5451YV: LED Display Driver –40°C to +85°C Junction Temperature Range, 44-Lead PLCC, 26/Tube c) MM5451YV-TR: LED Display Driver –40°C to +85°C Junction Temperature Range, 44-Lead PLCC, 500/Reel PART NO. XX PackageDevice Device: MM5450: LED Display Driver (with Enable) MM5451: LED Display Driver Junction Temperature Range: Y = –40°C to +85°C Package: N = 40-Lead PDIP V = 44-Lead PLCC Media Type: TR = 500/Reel for V Package (blank)= 9/Tube for N Package (blank)= 26/Tube for V Package X Junction XX – Media Type Temperature Range Note 1: Tape and Reel identifier only appears in the catalog part number description. This identifier is used for ordering purposes and is not printed on the device package. Check with your Microchip Sales Office for package availability with the Tape and Reel option.

DS20005651A-page 18  2016 Microchip Technology Inc. NOTES:

 2016 Microchip Technology Inc. DS20005651A-page 19 Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application me ets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY , PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE . Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting fr om such use. No licenses are conveyed, implicitly or ot herwise, under any Microchip intellectual property rights unless otherwise stated. Trademarks The Microchip name and logo, the Microchip logo, AnyRate, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, KeeLoq, KeeLoq logo, Kleer, LANCheck, LINK MD, MediaLB, MOST, MOST logo, MPLAB, OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. ClockWorks, The Embedded Control Solutions Company, ETHERSYNCH, Hyper Speed Control, HyperLight Load, IntelliMOS, mTouch, Precision Edge, and QUIET-WIRE are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, MiWi, motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PureSilicon, RightTouch logo, REAL ICE, Ripple Blocker, Serial Quad I/O, SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. GestIC is a registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2016, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 978-1-5224-1052-2 Note the following details of the code protection feature on Microchip devices:

  • Microchip products meet the specification cont ained in their particular Microchip Data Sheet.
  • Microchip believes that its family of products is one of the mo st secure families of its kind on the market today, when used in the intended manner and under normal conditions.
  • There are dishonest and possibly illegal meth ods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
  • Microchip is willing to work with the customer who is concerned about the integrity of their code.
  • Neither Microchip nor any other semiconduc tor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC ® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 ==

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