AT25256B ATMEL [ATMEL Corporation], AT25256B Datasheet
AT25256B
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AT25256B Summary of contents
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... HOLD HOLD SCK WP SCK GND SI Bottom View Bottom View SPI Serial EEPROMS 128K (16,384 x 8) 256K (32,768 x 8) AT25128B AT25256B HOLD 2 7 SCK GND 5 4 8698B–SEEPR–3/10 ...
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Absolute Maximum Ratings* Operating Temperature ........................–55°C to +125°C Storage Temperature .........................–65° 150°C Voltage on Any Pin with Respect to Ground.............................. –1.0 V +7.0V Maximum Operating Voltage................................. 6.25V DC Output Current .............................................. 5.0 mA Figure 1-1. Block Diagram ...
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Table 1-1. Pin Capacitance Applicable over recommended operating range from T Symbol Test Conditions C Output Capacitance (SO) OUT C Input Capacitance (CS, SCK, SI, WP, HOLD) IN Notes: 1. This parameter is characterized and is not 100% tested. ...
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Table 1-3. AC Characteristics Applicable over recommended operating range from TTL Gate and 30 pF (unless otherwise noted) Symbol Parameter f SCK Clock Frequency SCK t Input Rise Time RI t Input Fall Time FI t ...
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Table 1-3. AC Characteristics (Continued) Applicable over recommended operating range from TTL Gate and 30 pF (unless otherwise noted) Symbol Parameter t HOLD to Output Low HOLD to Output High ...
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Figure 2-1. SPI Serial Interface AT25128B/256B 6 AT25128B/256B 8698B–SEEPR–3/10 ...
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... Bits 0 – 7 are “1”s during an internal write cycle. 8698B–SEEPR–3/10 Operation Set Write Enable Latch Reset Write Enable Register Read Status Register Write Status Register Read Data from Memory Array Write Data to Memory Array Bit 5 Bit 4 Bit BP1 Definition Bit 0 = “ ...
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... Protected 0 Protected 1 Protected 0 Protected 1 Protected 2-6). Upon completion, any data on the SI line will be ignored. The data (D7 - D0) at the Table 2-4. Array Addresses Protected AT25256B None None 6000 – 7FFF 4000 – 7FFF 0000 – 7FFF Blocks Status Register Protected Protected Writable Writable Protected ...
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... If the device is not write enabled (WREN), the device will ignore the Write instruction and will return to the standby state, when CS is brought high. A new CS falling edge is required to re-initiate the serial communication. Table 3-6. Address Key Address A N Don’t Care Bits 8698B–SEEPR–3/10 AT25128B AT25256B A − − AT25128B/256B − ...
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Timing Diagram (for SPI Mode 0 (0,0) Figure 4-1. Synchronous Data Timing CSS V IH SCK HI Figure 4-2. WREN Timing ...
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Figure 4-4. RDSR Timing SCK SI INSTRUCTION HIGH IMPEDANCE SO Figure 4-5. WRSR Timing SCK SI HIGH IMPEDANCE SO Figure 4-6. READ Timing SCK SI INSTRUCTION HIGH IMPEDANCE SO 8698B–SEEPR–3/10 ...
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Figure 4-7. WRITE Timing SCK SI INSTRUCTION HIGH IMPEDANCE SO Figure 4-8. HOLD Timing CS SCK HOLD SO AT25128B/256B ...
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Ordering Code Detail Atmel Designator Product Family Device Density 128 = 128k 256 = 156k Device Revision 8698B–SEEPR–3/ AT25128B/256B Shipping Carrier Option B or ...
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Part Markings AT25128B-SSHL Top Mark |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| * |---|---|---|---|---|---|---|---| | PIN 1 INDICATOR (DOT) AT25128B-XHL Top Mark PIN 1 INDICATOR (DOT ...
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... PIN 1 INDICATOR AT25256B-SSHL Top Mark |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| * |---|---|---|---|---|---|---|---| | PIN 1 INDICATOR (DOT) AT25256B-XHL Top Mark PIN 1 INDICATOR (DOT |---|---|---|---|---|---| A T |---|---|---|---|---|---| 5 E |---|---|---|---|---|---|---| ATMEL |---|---|---|---|---|---|---| 8698B–SEEPR–3/ Country of Origin Y = One Digit Year Code M = One Digit Month Code ...
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... At25256B-MAHL Top Mark |---|---|---| 5 |---|---|---| H |---|---|---| Y |---|---|---| * | PIN 1 INDICATOR (DOT) AT25256B-CUL Top Mark |---|---|---|---| |---|---|---|---| |---|---|---|---|---| * <-- PIN 1 INDICATOR AT25128B/256B YEAR OF ASSEMBLY Country of Ass’y XX= ATMEL LOT NUMBER TO COORESPOND L @ WITH TRACE CODE LOG BOOK. (e. AA, AB, AC,... AX, AY, AZ SEAL YEAR 6: 2006 ...
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Ordering Codes AT25128B Ordering Information Ordering Code (1) AT25128B-SSHL-B (NiPdAu Lead Finish) (2) AT25128B-SSHL-T (NiPdAu Lead Finish) (1) AT25128B-XHL-B (NiPdAu Lead Finish) (2) AT25128B-XHL-T (NiPdAu Lead Finish) (2) AT25128B-MAHL-T (NiPdAu Lead Finish) (2) AT25128B-CUL-T (SnAgCu Ball Finish) (3) AT25128B-WWU11L ...
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... AT25256B Ordering Information Ordering Code (1) AT25256B-SSHL-B (NiPdAu Lead Finish) (2) AT25256B-SSHL-T (NiPdAu Lead Finish) (1) AT25256B-XHL-B (NiPdAu Lead Finish) (2) AT25256B-XHL-T (NiPdAu Lead Finish) (2) AT25256B-MAHL-T (NiPdAu Lead Finish) (2) AT25256B-CUL-T (SnAgCu Ball Finish) (3) AT25256B-WWU11L Notes: 1. Bulk delivery in tubes (SOIC and TSSOP 100/tube). 2. Tape and reel delivery (SOIC 4k/reel. TSSOP, UDFN and VFBGA 5k/reel). ...
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Packaging Information 8S1 – JEDEC SOIC GND SDA SCL e Notes: 1. These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc. Package Drawing Contact: packagedrawings@atmel.com ...
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TSSOP GND Pin 1 indicator this corner SDA SCL Top View Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing ...
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UDFN (8x (6x) L (8x) Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MO-229 for proper dimensions, tolerances, datums, etc. 2. ...
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VFBGA A1 Ball Pad Corner e (e1) Notes: 1. This drawing is for general information. 2. Dimension 'b' is measured at the maximum solder ball diameter. 3. Solder ball composition shall be 95.5Sn-4.0Ag-.5Cu. Package Drawing Contact: packagedrawings@atmel.com AT25128B/256B ...
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Revision History Doc. Rev. Date 8698B 03/2010 8698A 12/2009 8698B–SEEPR–3/10 Comments Update Catalog Numbering Scheme. Update Ordering Information and package types. Initial document release. AT25128B/256B 23 ...
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Headquarters Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to ...