25LC640-E/ST MICROCHIP [Microchip Technology], 25LC640-E/ST Datasheet
25LC640-E/ST
Related parts for 25LC640-E/ST
25LC640-E/ST Summary of contents
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... PDIP/SOIC *25XX640 is used in this document as a generic part number for the 25AA640/25LC640 devices. SPI is a registered trademark of Motorola Corporation. 2004 Microchip Technology Inc. 25AA640/25LC640 ™ Bus Serial EEPROM Description The Microchip Technology Inc. 25AA640/25LC640 Temp * (25XX640 ...
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... ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V .............................................................................................................................................................................7.0V CC All inputs and outputs w.r.t. V ........................................................................................................ -0. Storage temperature .................................................................................................................................-65°C to 150°C Ambient temperature under bias ...............................................................................................................-65°C to 125°C ESD protection on all pins ..........................................................................................................................................4 kV † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...
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... CLK A 3: This parameter is not tested but established by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model which can be obtained from our web site. 2004 Microchip Technology Inc. 25AA640/25LC640 Industrial (I -40°C to +85°C A Automotive (E -40° ...
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... FIGURE 1-1: HOLD TIMING CS SCK HOLD FIGURE 1-2: SERIAL INPUT TIMING CS 2 Mode 1,1 Mode 0,0 SCK MSB In SO FIGURE 1-3: SERIAL OUTPUT TIMING SCK 13 MSB Out SO SI DS21223G-page High-impedance n Don’t Care High-impedance 14 Don’ ...
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... TABLE 1-3: AC TEST CONDITIONS AC Waveform 0. – 0. 4.0V HI Timing Measurement Reference Level Input Output Note 1: For V 4. For V > 4.0V CC 2004 Microchip Technology Inc. 25AA640/25LC640 FIGURE 1-4: (Note 1) (Note TEST CIRCUIT V CC 2.25 k 100 pF 1.8 k DS21223G-page 5 ...
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... PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Name PDIP SOIC TSSOP SCK HOLD 2.1 Chip Select (CS) A low level on this pin selects the device. A high level deselects the device and forces it into Standby mode ...
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... RDSR 0000 0101 WRSR 0000 0001 2004 Microchip Technology Inc. 25AA640/25LC640 3.3 Write Sequence Prior to any attempt to write data to the 25XX640 array or Status register, the write enable latch must be set by issuing the WREN instruction (Figure 3-4). This is done by setting CS low and then clocking out the proper instruction into the 25XX640 ...
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... FIGURE 3-1: READ SEQUENCE SCK Instruction High-impedance SO FIGURE 3-2: BYTE WRITE SEQUENCE CS Instruction High-impedance SO FIGURE 3-3: PAGE WRITE SEQUENCE SCK Instruction ...
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... WRITE DISABLE SEQUENCE CS SCK SI SO 2004 Microchip Technology Inc. 25AA640/25LC640 The following is a list of conditions under which the write enable latch will be reset: • Power-up • WRDI instruction successfully executed • WRSR instruction successfully executed • WRITE instruction successfully executed ...
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... Read Status Register Instruction (RDSR) The Read Status Register instruction (RDSR) provides access to the Status register. The Status register may be read at any time, even during a write cycle. The Status register is formatted as follows WPEN BP1 BP0 The Write-In-Process (WIP) bit indicates whether the 25XX640 is busy with a write operation. When set to a ‘ ...
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... See Table 3-3 for a matrix of functionality on the WPEN bit. See Figure 3-7 for WRSR timing sequence. FIGURE 3-7: WRITE STATUS REGISTER TIMING SEQUENCE SCK Instruction 2004 Microchip Technology Inc. 25AA640/25LC640 TABLE 3-2: BP1 Data to Status Register ...
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... Data Protection The following protection has been implemented to prevent inadvertent writes to the array: • The write enable latch is reset on power-up • A write enable instruction must be issued to set the write enable latch • After a byte write, page write, or Status register write, the write enable latch is reset • ...
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... Standard marking consists of Microchip part number, year code, week code, traceability code (facility code, mask rev#, and assembly code). For marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. 2004 Microchip Technology Inc. 25AA640/25LC640 Example: 25LC640 /P017 0410 Example: 25LC640 I/SN0410 017 Example: 5LCX 0410 017 DS21223G-page 13 ...
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... Plastic Dual In-line (P) – 300 mil (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width ...
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... Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057 2004 Microchip Technology Inc. 25AA640/25LC640 Units ...
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... Plastic Thin Shrink Small Outline (ST) – 4.4 mm (TSSOP Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Molded Package Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...
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... APPENDIX A: REVISION HISTORY Revision F Corrections to Section 1.0, Electrical Characteristics. Revision G Product ID System, Example C: Corrected part number, added “Alternate Pinout” and corrected part number in Header. Updated Trademark and Sales List pages. 2004 Microchip Technology Inc. 25AA640/25LC640 DS21223G-page 17 ...
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... NOTES: DS21223G-page 18 2004 Microchip Technology Inc. ...
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... Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2004 Microchip Technology Inc. 25AA640/25LC640 SYSTEMS INFORMATION AND UPGRADE HOT LINE The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products ...
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... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: 25AA640/25LC640 Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this document easy to follow? If not, why? 4 ...
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... SPI Serial EEPROM 25LC640T: 64K bit 2.5V SPI Serial EEPROM (Tape and Reel) 25LC640X: 64K bit 2.5V SPI Serial EEPROM in alternate pinout (ST only) 25LC640XT: 64K bit 2.5V SPI Serial EEPROM in alternate pinout Tape and Reel (ST only) Temperature Range ...
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... NOTES: DS21223G-page 22 2004 Microchip Technology Inc. ...
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... The Company’s quality system processes and procedures are for its PICmicro ® 8-bit MCUs ® code hopping devices, Serial EE OQ 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. DS21223G-page 23 ...
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W ORLDWIDE AMERICAS Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Atlanta 3780 Mansell Road, Suite 130 Alpharetta, GA 30022 Tel: 770-640-0034 Fax: 770-640-0307 Boston 2 Lan Drive, Suite ...