25AA080 Microchip Technology Inc., 25AA080 Datasheet
25AA080
Available stocks
Related parts for 25AA080
25AA080 Summary of contents
Page 1
... Microchip Technology Inc. Not recommended for new designs – Please use 25AA080A/B or 25LC080A/B. 25AA080/25LC080/25C080 ™ Bus Serial EEPROM Description: The Microchip Technology Inc. 25AA080/25LC080/ Temp. 25C080 (25XX080 Ranges Erasable PROMs. The memory is accessed via a I simple Serial Peripheral Interface™ (SPI™) compati- ble serial bus ...
Page 2
... 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 ...............................................................................................................-40°C to 125°C Soldering temperature of leads (10 seconds) .......................................................................................................+300°C ESD protection on all pins ......................................................................................................................................... 4 KV † NOTICE: Stresses above those listed under ‘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 listings of this specification is not implied ...
Page 3
... 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™ Model which can be obtained from Microchip’s web site at: www.microchip.com. 2004 Microchip Technology Inc. 25AA080/25LC080/25C080 Industrial (I -40°C to +85°C ...
Page 4
... FIGURE 1-1: HOLD TIMING CS 16 SCK SO n+2 n+1 n+2 n+1 SI HOLD FIGURE 1-2: 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 DS21230D-page High-impedance n don’t care High-impedance 14 don’t care 17 n n-1 5 ...
Page 5
... 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. 25AA080/25LC080/25C080 FIGURE 1-4: — (Note 1) (Note TEST CIRCUIT V CC 2.25 K 100 pF 1.8 K DS21230D-page 5 ...
Page 6
... PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Name PDIP SOIC Chip Select Input Serial Data Output Write-Protect Pin Vss 4 4 Ground Serial Data Input SCK 6 6 Serial Clock Input HOLD ...
Page 7
... RDSR 0000 0101 WRSR 0000 0001 2004 Microchip Technology Inc. 25AA080/25LC080/25C080 3.3 Write Sequence Prior to any attempt to write data to the 25XX080, 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 25XX080 ...
Page 8
... FIGURE 3-1: READ SEQUENCE SCK instruction High-impedance SO FIGURE 3-2: BYTE WRITE SEQUENCE SCK instruction High-impedance SO FIGURE 3-3: PAGE WRITE SEQUENCE SCK instruction ...
Page 9
... FIGURE 3-5: WRITE DISABLE SEQUENCE CS SCK SI SO 2004 Microchip Technology Inc. 25AA080/25LC080/25C080 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 ...
Page 10
... Read Status Register (RDSR) The Read Status Register (RDSR) instruction 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 25XX080 is busy with a write operation. When set to a ‘ ...
Page 11
... See Table 3-3 for a matrix of functionality on the WPEN bit. See Figure 3-5 for the WRSR timing sequence. FIGURE 3-7: WRITE STATUS REGISTER TIMING SEQUENCE SCK instruction 2004 Microchip Technology Inc. 25AA080/25LC080/25C080 TABLE 3-2: BP1 data to Status register ...
Page 12
... 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 • ...
Page 13
... Standard PICmicro device marking consists of Microchip part number, year code, week code, and traceability code. For PICmicro device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. 2004 Microchip Technology Inc. 25AA080/25LC080/25C080 Example: 25LC080 /PNNN YYWW ...
Page 14
... 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 ...
Page 15
... 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. 25AA080/25LC080/25C080 ...
Page 16
... APPENDIX A: REVISION HISTORY Revision D Added note to page 1 header (Not recommended for new designs). Updated document format. DS21230D-page 16 2004 Microchip Technology Inc. ...
Page 17
... Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2004 Microchip Technology Inc. 25AA080/25LC080/25C080 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 ...
Page 18
... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: 25AA080/25LC080/25C080 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 ...
Page 19
... X /XX Device Temperature Package Range Device 25AA080: 8 Kbit 1.8V SPI Serial EEPROM 25AA080T: 8 Kbit 1.8V SPI Serial EEPROM (Tape and Reel) 25LC080: 8 Kbit 2.5V SPI Serial EEPROM 25LC080: 8 Kbit 2.5V SPI Serial EEPROM (Tape and Reel) 25C080: 8 Kbit 5.0V SPI Serial EEPROM 25C080: 8 Kbit 5.0V SPI Serial EEPROM ...
Page 20
... NOTES: DS21230D-page 20 2004 Microchip Technology Inc. ...
Page 21
... Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. 2004 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC ...
Page 22
... Italy Via Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 05/28/04 2004 Microchip Technology Inc. ...