25AA020A MICROCHIP [Microchip Technology], 25AA020A Datasheet
25AA020A
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25AA020A Summary of contents
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... SOT-23 (OT SCK HOLD *25XX020A is used in this document as a generic part number for the 25AA020A and the 25LC020A. Preliminary Packages P, MS, SN, ST, MC MS, SN, ST, MC, OT PDIP/SOIC (P, SN HOLD 7 HOLD ...
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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 ...............................................................................................................-40°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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... Total Endurance™ Model which can be obtained from our web site: www.Microchip.com begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle WC is complete. © 2006 Microchip Technology Inc. 25AA020A/25LC020A 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 (byte or page) 21 — Endurance Note 1: This parameter is periodically sampled and not 100% tested. 2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ ...
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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 © 2006 Microchip Technology Inc. 25AA020A/25LC020A high-impedance n don’t care high-impedance 14 don’t care Preliminary ...
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... FUNCTIONAL DESCRIPTION 2.1 Principles of Operation The 25XX020A is a 256-byte Serial EEPROM designed to interface directly with the Serial Peripheral Interface (SPI) port of many of today’s popular microcontroller families, including ® PICmicro 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 software to match the SPI protocol ...
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... SI high-impedance SO © 2006 Microchip Technology Inc. 25AA020A/25LC020A 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 FIGURE 2-3: PAGE WRITE SEQUENCE SCK Instruction SCK data byte DS21833C-page 8 ...
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... FIGURE 2-5: WRITE DISABLE SEQUENCE (WRDI) CS SCK SI SO © 2006 Microchip Technology Inc. 25AA020A/25LC020A 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. See Figure 2-6 for the RDSR timing sequence. The STATUS register may be read at any time, even during a write cycle. The STATUS register is formatted as follows: TABLE 2-2: ...
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... Table 2-3. FIGURE 2-7: WRITE STATUS REGISTER TIMING SEQUENCE (WRSR SCK instruction Note: An internal write cycle (T WC sequence. © 2006 Microchip Technology Inc. 25AA020A/25LC020A 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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... The SI pin is used to transfer data into the device. It receives instructions, addresses and data. Data is latched on the rising edge of the serial clock. © 2006 Microchip Technology Inc. 25AA020A/25LC020A 3.5 Serial Clock (SCK) The SCK is used to synchronize the communication between a master and the 25XX020A. Instructions, ...
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... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS21833C-page 14 Example: 25AA020A e I/P 3 1L7 0627 Example: ...
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... Package Marking Information (continued) 8-Lead 2X3 DFN XXX YWW NN 6-Lead SOT-23 XXNN © 2006 Microchip Technology Inc. 25AA020A/25LC020A Example: 411 627 L7 Example: 22L7 Preliminary DS21833C-page 15 ...
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... Plastic Dual In-line (P) – 300 mil (PDIP Units Dimension Limits n Number of Pins p Pitch Top to Seating Plane A Molded Package Thickness A2 Base to Seating Plane A1 Shoulder to Shoulder Width E Molded Package Width E1 Overall Length D Tip to Seating Plane L c Lead Thickness ...
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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 © 2006 Microchip Technology Inc. 25AA020A/25LC020A ...
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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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... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. BSC: Basic Dimension. Theoretically exact value shown without tolerances. See ASME Y14.5M REF: Reference Dimension, usually without tolerance, for information purposes only. See ASME Y14.5M JEDEC Equivalent: MO-187 Drawing No. C04-111 © 2006 Microchip Technology Inc. 25AA020A/25LC020A INCHES ...
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... Plastic Dual-Flat, No-Lead Package (MC) 2x3x0.9 mm Body (DFN) – Saw Singulated D PIN 1 ID INDEX AREA (NOTE 1) TOP VIEW A3 Dimension Limits Number of Pins Pitch Overall Height Standoff Contact Thickness Overall Length Overall Width Exposed Pad Length Exposed Pad Width Contact Length § ...
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... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. BSC: Basic Dimension. Theoretically exact value shown without tolerances. See ASME Y14.5M JEITA (formerly EIAJ) equivalent: SC-74A Drawing No. C04-120 © 2006 Microchip Technology Inc. 25AA020A/25LC020A ...
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... APPENDIX A: REVISION HISTORY Revision B Corrections to Section 1.0, Electrical Characteristics. Revision C Added Packages SOT-23, DFN and X-rotated TSSOP; Revised AC Char., Params. 9, 10; Revised Package Legend. DS21833C-page 22 Preliminary © 2006 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. © 2006 Microchip Technology Inc. 25AA020A/25LC020A 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: 25AA020A/25LC020A 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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... Examples: Package a) 25AA020A-I/MS = 2k-bit, 16-byte page, 1.8V Serial EEPROM, Industrial temp., MSOP package b) 25AA020AT-I/SN = 2k-bit, 16-byte page, 1.8V Serial EEPROM, Industrial temp., Tape & Reel, SOIC package c) 25LC020AT-I/SN = 2k-bit, 16-byte page, 2.5V Serial EEPROM, Industrial temp., Tape & Reel, SOIC package d) 25LC020AT-I/ST = 2k-bit, 16-byte page, 2.5V Serial EEPROM, Industrial temp., Tape & ...
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... NOTES: DS21833C-page 24 Preliminary © 2006 Microchip Technology Inc. ...
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... Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company’s quality system processes and procedures are for its PICmicro 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. ...
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W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Australia - Sydney 2355 West Chandler Blvd. Tel: 61-2-9868-6733 Chandler, AZ 85224-6199 Fax: 61-2-9868-6755 Tel: 480-792-7200 China - Beijing Fax: 480-792-7277 Tel: 86-10-8528-2100 Technical Support: Fax: 86-10-8528-2104 http://support.microchip.com China - Chengdu Web Address: Tel: ...