25lc320a Microchip Technology Inc., 25lc320a Datasheet
25lc320a
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25lc320a Summary of contents
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... MSOP, and 8-lead TSSOP. All packages are Pb-free. Package Types (not to scale) TSSOP/MSOP (ST, MS *25XX320A is used in this document as a generic part number for the 25AA320A, 25LC320A devices. Packages P, SN, ST SN, ST, MS PDIP/SOIC (P, SN ...
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... ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V .............................................................................................................................................................................6.5V 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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... This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model which can be obtained from our web site: www.microchip.com. © 2007 Microchip Technology Inc. 25AA320A/25LC320A Industrial (I -40°C to +85°C A Automotive (E -40° ...
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... TABLE 1-2: AC CHARACTERISTICS (CONTINUED) AC CHARACTERISTICS Param. Sym. Characteristic No HOLD Hold Time HOLD Low to Output HZ High HOLD High to Output HV Valid 20 T Internal Write Cycle Time WC 21 — Endurance Note 1: This parameter is periodically sampled and not 100% tested begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle is WC complete ...
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... SERIAL INPUT TIMING CS 2 Mode 1,1 SCK Mode 0 MSB in SO FIGURE 1-3: SERIAL OUTPUT TIMING SCK 13 MSB out SO SI © 2007 Microchip Technology Inc. 25AA320A/25LC320A High-Impedance n Don’t Care High-Impedance 14 Don’t Care ...
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... FUNCTIONAL DESCRIPTION 2.1 Principles of Operation The 25XX320A is a 4096 byte Serial EEPROM designed to interface directly with the Serial Peripheral Interface (SPI) port of many of today’s popular microcontroller families, including PIC16C6X/7X microcontrollers. It may also interface with microcontrollers that do not have a built-in SPI port by using discrete I/O lines programmed properly in firmware to match the SPI protocol ...
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... SI High-Impedance SO © 2007 Microchip Technology Inc. 25AA320A/25LC320A HV Generator EEPROM Array Page Latches Y Decoder Sense Amp. R/W Control Read data from memory array beginning at selected address Write data to memory array beginning at selected address Reset the write enable latch (disable write operations) ...
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... FIGURE 2-2: BYTE WRITE SEQUENCE SCK Instruction High-Impedance SO FIGURE 2-3: PAGE WRITE SEQUENCE SCK Instruction SCK Data Byte ...
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... FIGURE 2-5: WRITE DISABLE SEQUENCE (WRDI) CS SCK SI SO © 2007 Microchip Technology Inc. 25AA320A/25LC320A The following is a list of conditions under which the write enable latch will be reset: • Power-up See • 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: TABLE 2-2: STATUS REGISTER W/R – – ...
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... WRITE STATUS REGISTER TIMING SEQUENCE (WRSR SCK Instruction Note: An internal write cycle (T WC sequence. © 2007 Microchip Technology Inc. 25AA320A/25LC320A See Figure 2-7 for the WRSR timing sequence. TABLE 2-3: 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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... STATUS register internal write cycle has already begun, WP going low will have no effect on the write. © 2007 Microchip Technology Inc. 25AA320A/25LC320A The WP pin function is blocked when the WPEN bit in the STATUS register is low. This allows the user to install the 25XX320A in a system with WP pin grounded and still be able to write to the STATUS register ...
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... MSOP 1st Line Marking Device 5LBAI 3281L7 25AA320A 25LC320A Example: 25LC320A e I/P 3 1L7 0328 Example: 25LC32AI 0728 1L7 Example: TSSOP 1st Line Marking 5LBA I328 Device 1L7 25AA320A 25LC320A © 2007 Microchip Technology Inc. std mark 5ABAT 5LBAT std mark 5ABA 5LBA ...
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... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 3. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc. 25AA320A/25LC320A ...
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... Plastic Dual In-Line (P or PA) – 300 mil Body [PDIP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging N NOTE Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane ...
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... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 4. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc. 25AA320A/25LC320A ...
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... Plastic Thin Shrink Small Outline (ST) – 4.4 mm Body [TSSOP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D N NOTE Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width ...
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... APPENDIX A: REVISION HISTORY Revision B Corrections to Section 1.0, Electrical Characteristics. Revision C (2/2007) Deleted X-Rotated TSSOP; Revised Table 1-3; Revised Packaging Information; Replaced Package Drawings; Revised Product ID System. Revision D (03/2007) Replaced Package Drawings (Rev. AM). © 2007 Microchip Technology Inc. 25AA320A/25LC320A DS21828D-page 19 ...
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... NOTES: DS21828D-page 20 © 2007 Microchip Technology Inc. ...
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... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2007 Microchip Technology Inc. 25AA320A/25LC320A CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • ...
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... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: 25AA320A/25LC320A 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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... Serial EEPROM, Industrial temp., Tape & Reel, SOIC package 25LC320AT-E/SN = 32k-bit, 32-byte page, 2.5V Serial EEPROM, Extended temp., Tape & Reel, SOIC package 25LC320AT-I/ST = 32k-bit, 32-byte page, 2.5V Serial EEPROM, Industrial temp., Tape & Reel, TSSOP package DS21828D-page 23 ...
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... NOTES: DS21828D-page 24 © 2007 Microchip Technology Inc. ...
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... Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. © 2007 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...
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