at26df041 ATMEL Corporation, at26df041 Datasheet
at26df041
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at26df041 Summary of contents
Page 1
... AT26DF041 does not require high input voltages for programming. The device oper- ates from a single power supply, 3.0V to 3.6V or 2.7V to 3.6V, for both the program and read operations. The AT26DF041 is enabled through the chip select pin (CS) and accessed via a three-wire interface consisting of the Serial Input (SI), Serial Output (SO), and the Serial Clock (SCK) ...
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... VCC GND 3. Memory Array To provide optimal flexibility, the memory array of the AT26DF041 is divided into three levels of granularity comprising of sectors, blocks, and pages. The Memory Architecture Diagram illustrates the breakdown of each level and details the number of pages per sector and block. All program operations to the DataFlash occur either on a byte basis page-by-page basis ...
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... AT26DF041 Page Erase Detail 4KB 2KB 256 Byte Block Erase Block Erase Page Erase (50h Command) (81h Command) 256 Bytes 256 Bytes ...
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... SO pin during the next eight clock cycles. After bit 0 of the sta- tus register has been shifted out, the sequence will repeat itself (as long as CS remains low AT26DF041 4 . The 03H opcode can be used for lower frequency read operations up to the maxi- ...
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... The device density is indicated using bits and 2 of the status register. For the AT26DF041, the four bits are and 1. The decimal value of these four binary bits does not equate to the device density; the four bits represent a combinational code relating to differ- ing densities of Serial DataFlash devices, allowing a total of 16 different density configurations ...
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... For example, if the first six pages of a sector are used to store static data and the remaining pages are used to store changing data, AT26DF041 6 . During this time, the status register will indicate that the part is busy. ...
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... The erase operation is inter- nally self-timed and should take place in a maximum of time of t register will indicate that the device is busy. 3495C–DFLSH–11/05 . During this time, the status register will indicate that the part is busy. BE1 AT26DF041 . During this time, the status BE2 7 ...
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... Manufacturer ID codes that are two, three or even four bytes long with the first byte(s) in the sequence being 7FH. A system should detect code 7FH as a “Continuation Code” and continue to read Manufacturer ID bytes. The first non-7FH byte would signify the last byte of Manufacturer ID data. For Atmel (and some other manufacturers), the Manufacturer ID data is comprised of only one byte. AT26DF041 8 Bit 3 ...
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... CS pin will be required to start a valid instruction. The SPI mode will be automatically selected on every falling edge sampling the inactive clock state. After power is applied and V ms before an operational mode is started. 3495C–DFLSH–11/ the minimum datasheet value, the system should wait 20 CC AT26DF041 9 ...
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... Address bits are don’t care for the Page Erase Command. Address bits A10 - A0 are don’t care for the 2 KB Block Erase Command. Address bits A11 - A0 are don’t care for the 4 KB Block Erase Command. AT26DF041 10 Address Opcode ...
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... This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. AT26DF041 -40° 85° C 2.7V to 3.6V Min Typ Max 2 ...
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... Page Erase and Programming Time EP t Byte Program Time BP t Page Programming Time P t Page Erase Time PE t Block Erase (2 KB) Time BE1 t Block Erase (4 KB) Time BE2 AT26DF041 12 AT26DF041 2. Min Max Min Max ...
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... UNDER TEST CSS WH SCK t V HIGH IMPEDANCE VALID CSS WL WH SCK HIGH Z SO VALID OUT VALID IN AT26DF041 CSH DIS HIGH IMPEDANCE VALID OUT CSH t DIS HIGH IMPEDANCE 13 ...
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... Read Operations The following waveform illustrates the read sequence available. Figure 14-1. Continuous Array Read Each transition represents 8 bits and 8 clock cycles AT26DF041 14 SI CMD 8 bits A23-A16 · Starts self-timed program operation ...
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... V DATA OUT COMMAND OPCODE MSB AT26DF041 LSB MSB BIT 0 BIT BYTE n BYTE n+1 LSB MSB BIT 0 BIT 7 ...
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... HIGH-IMPEDANCE SO 16.2 Continuous Array Read (Low Frequency: Opcode 03H) CS SCK HIGH-IMPEDANCE SO 16.3 Status Register Read (Opcode: 05H) CS SCK HIGH-IMPEDANCE SO AT26DF041 DATA OUT DATA OUT D 7 ...
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... Very Thin Micro Lead-Frame Package (MLF) 8S2 8-lead, 0.209" Wide, Plastic Gull Wing Small Outline Package (EIAJ SOIC) 3495C–DFLSH–11/05 Ordering Code Package AT26DF041-MU 8M1-A AT26DF041-SU 8S2 Package Type AT26DF041 Operation Range Industrial (-40° 85° ...
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... Packaging Information 18.1 8M1-A – MLF BOTTOM VIEW 2325 Orchard Parkway San Jose, CA 95131 R AT26DF041 Pin 1 ID TOP VIEW Pin #1 Notch (0. TITLE 8M1-A, 8-lead 1.00 mm Body, Very Thin Dual Flat Package No Lead (MLF) SIDE VIEW ...
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... Values b and C apply to pb/Sn solder plated terminal. The standard thickness of the solder layer shall be 0.010 +0.010/−0.005 mm. 2325 Orchard Parkway San Jose, CA 95131 R 3495C–DFLSH–11/ ∅ End View TITLE 8S2, 8-lead, 0.209" Body, Plastic Small Outline Package (EIAJ) AT26DF041 E1 L COMMON DIMENSIONS (Unit of Measure = mm) MIN NOM MAX SYMBOL A 1.70 2.16 A1 0.05 0. ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © Atmel Corporation 2005. All rights reserved. Atmel istered trademarks, and others are the trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations ...