AT25256-10PI Atmel, AT25256-10PI Datasheet
AT25256-10PI
Specifications of AT25256-10PI
Related parts for AT25256-10PI
AT25256-10PI Summary of contents
Page 1
... PDIP (AT25128/256), 8-lead EIAJ SOIC (AT25128/256), 8-lead and 16-lead JEDEC SOIC (AT25128), 14-lead TSSOP (AT25128), 20-lead TSSOP (AT25128/256), and 8-lead Leadless Array (AT25256) packages. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions. Table 1. Pin Configuration ...
Page 2
Absolute Maximum Ratings* Operating Temperature..................................–55°C to +125°C Storage Temperature .....................................–65°C to +150°C Voltage on Any Pin with Respect to Ground .................................... –1.0V to +7.0V Maximum Operating Voltage .......................................... 6.25V DC Output Current........................................................ 5.0 mA Figure 1. Block Diagram AT25128/256 2 ...
Page 3
Table 2. 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 Note: 1. This parameter is characterized and is not 100% tested. ...
Page 4
Table 4. AC Characteristics Applicable over recommended operating range from TTL Gate and 100 pF (unless otherwise noted) Symbol Parameter f SCK Clock Frequency SCK t Input Rise Time RI t Input Fall Time FI t ...
Page 5
... Output Disable Time DIS t Write Cycle Time WC (1) Endurance 5.0V, 25°C, Page Mode Note: 1. This parameter is characterized and is not 100% tested. Contact Atmel for further information. Serial Interface Description 0872O–SEEPR–03/05 = 40° 85°C, T – AI Voltage 4.5 – 5.5 2.7 – 5.5 1.8 – ...
Page 6
... X100 RDSR 0000 X101 WRSR 0000 X001 READ 0000 X011 WRITE 0000 X010 AT25128/256 Operation Set Write Enable Latch Reset Write Enable Latch Read Status Register Write Status Register Read Data from Memory Array Write Data to Memory Array 0872O–SEEPR–03/05 ...
Page 7
... Status Register Bits Level BP1 0 0 1(1/4) 0 2(1/2) 1 3(All) 1 AT25128/256 Bit 4 Bit 3 Bit 2 Bit 1 X BP1 BP0 WEN , RDSR). WC Array Addresses Protected BP0 AT25128 0 None 1 3000 - 3FFF 0 2000 - 3FFF 1 0000 - 3FFF CC Bit 0 RDY AT25256 None 6000 - 7FFF 4000 - 7FFF 0000 - 7FFF 7 ...
Page 8
... When the highest address is reached, the address counter will roll over to the lowest address allowing the entire memory to be read in one continuous read cycle. WRITE SEQUENCE (WRITE): In order to program the AT25128/256, two separate instructions must be executed ...
Page 9
... NOTE: 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 fall- ing edge is required to reinitiate the serial communication. Table 10. Address Key Address A N Don’t Care Bits VALID IN AT25128/256 AT25128 CSH DIS HO V AT25256 HI-Z 9 ...
Page 10
Figure 4. WREN Timing Figure 5. WRDI Timing Figure 6. RDSR Timing CS 0 SCK SI INSTRUCTION HIGH IMPEDANCE SO AT25128/256 MSB ...
Page 11
Figure 7. WRSR Timing Figure 8. READ Timing Figure 9. WRITE Timing 0872O–SEEPR–03/05 AT25128/256 11 ...
Page 12
Figure 10. HOLD Timing CS SCK HOLD SO AT25128/256 0872O–SEEPR–03/05 ...
Page 13
AT25128 Ordering Information (2) Ordering Code AT25128-10PI-2.7 AT25128N-10SI-2.7 AT25128W-10SI-2.7 AT25128N1-10SI-2.7 AT25128T1-10TI-2.7 AT25128-10PI-1.8 AT25128N-10SI-1.8 AT25128W-10SI-1.8 AT25128N1-10SI-1.8 AT25128T1-10TI-1.8 AT25128N-10SJ-2.7 AT25128N-10SJ-1.8 AT25128N-10SE-2.7 Notes: 1. This device is not recommended for new designs. Please refer to AT25128A. 2. For 2.7V devices used in ...
Page 14
... AT25256 Ordering Information (2) Ordering Code AT25256-10PI-2.7 AT25256W-10SI-2.7 AT25256-10CI-2.7 AT25256T2-10TI-2.7 AT25256-10PI-1.8 AT25256W-10SI-1.8 AT25256-10CI-1.8 AT25256T2-10TI-1.8 AT25256W-10SJ-2.7 AT25256W-10SJ-1.8 AT25256W-10SE-2.7 Notes: 1. This device is not recommended for new designs. Please refer to AT25256A. 2. For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC Characteristics tables ...
Page 15
Packaging Information 8P3 – PDIP Top View PLCS Side View Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MS-001, Variation BA, for additional information. 2. Dimensions A and L are measured ...
Page 16
JEDEC SOIC Top View e Side View Note: These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc. 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R ...
Page 17
EIAJ SOIC 1 N Top View e D Side View Notes: 1. This drawing is for general information only; refer to EIAJ Drawing EDR-7320 for additional information. 2. Mismatch of the upper and lower dies and resin burrs ...
Page 18
LAP Marked Pin1 Indentifier E Top View 0.10 mm TYP Bottom View Note: 1. Metal Pad Dimensions. 2. All exposed metal area shall have the following finished platings. Ni: 0.0005 to 0.015 ...
Page 19
JEDEC SOIC 3 2 Top View e D Side View End View Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MS-012 for proper dimensions, tolerances, datums, etc. 2. Dimension D ...
Page 20
TSSOP Top View D A Side View Notes: 1. This drawing is for general information only. Please refer to JEDEC Drawing MO-153, Variation AB-1, for additional information. 2. Dimension D does not include mold ...
Page 21
TSSOP Top View A Side View Notes: 1. This drawing is for general information only. Please refer to JEDEC Drawing MO-153, Variation AC, for additional information. 2. Dimension D does not include mold Flash, protrusions ...
Page 22
... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...