at25020b-wwu11l ATMEL Corporation, at25020b-wwu11l Datasheet

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at25020b-wwu11l

Manufacturer Part Number
at25020b-wwu11l
Description
Spi Serial Eeprom
Manufacturer
ATMEL Corporation
Datasheet
1.AT25020B-WWU11L.pdf (27 pages)
Features
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Description
The AT25010B/020B/040B provides 1024/2048/4096 bits of serial electrically eras-
able programmable read-only memory (EEPROM) organized as 128/256/512 words
of 8 bits each. The device is optimized for use in many industrial and commercial
applications where low-power and low-voltage operation are essential. The
AT25010B/020B/040B is available in space saving, JEDEC SOIC, UDFN, TSSOP,
XDFN and VFBGA packages.
The AT25010B/020B/040B is enabled through the Chip Select pin (CS) and accessed
via a three-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO),
and Serial Clock (SCK). All programming cycles are completely self-timed, and no
separate erase cycle is required before write.
Block write protection is enabled by programming the status register with one of four
blocks of write protection. Separate Program Enable and Program disable instructions
are provided for additional data protection. Hardware data protection is provided via
the WP pin to protect against inadvertent write attempts. The HOLD pin may be used
to suspend any serial communication without resetting the serial sequence.
Table 0-1.
Pin Name
CS
SCK
SI
SO
GND
V
WP
HOLD
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
Low-voltage and Standard-voltage Operation
20 MHz Clock Rate (5V)
8-byte Page Mode
Block Write Protection
Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software
Data Protection
Self-timed Write Cycle (5 ms max)
High Reliability
Green (Pb/Halogen-free/Rohs Compliant) Packaging Options
Die Sales: Wafer Form, Waffle Pack, Bumped Wafers
CC
– Data Sheet Describes Mode 0 Operation
– V
– Protect 1/4, 1/2, or Entire Array
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
CC
= 1.8V to 5.5V
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
Pin Configuration
GND
WP
SO
CS
HOLD
8-lead UDFN, XDFN
SCK
V
CC
SI
SOIC, TSSOP
Bottom View
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
CS
SO
WP
GND
V
HOLD
SCK
SI
CC
HOLD
SCK
V
SI
CC
8-ball VFBGA
Bottom View
8
7
6
5
1
2
3
4
CS
SO
WP
GND
SPI Serial
EEPROM
1K (128x8)
2K (256x8)
4K (512x8)
AT25010B
AT25020B
AT25040B
Preliminary
8707B–SEEPR–3/10

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at25020b-wwu11l Summary of contents

Page 1

... UDFN, XDFN 8-ball VFBGA HOLD HOLD SCK WP SCK GND Bottom View Bottom View SPI Serial EEPROM 1K (128x8) 2K (256x8) 4K (512x8) AT25010B AT25020B AT25040B Preliminary GND 5 4 8707B–SEEPR–3/10 ...

Page 2

... Operating Temperature40° 125°C Storage Temperature65° 150°C Voltage on Any Pin with Respect to Ground1. 7.0V Maximum Operating Voltage6.25V DC Output Current5.0 mA Figure 1-1. Block Diagram AT25010B/020B/040B [Preliminary MEMORY ARRAY STATUS 128/256/512 X 8 REGISTER DATA REGISTER MODE DECODE LOGIC CLOCK GENERATOR *NOTICE: Stresses beyond those listed under “ ...

Page 3

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 Note: 1. This parameter is characterized and is not 100% tested. ...

Page 4

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 ...

Page 5

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 High Output Disable Time DIS t Write Cycle ...

Page 6

Figure 2-1. SPI Serial Interface AT25010B/020B/040B [Preliminary] 6 AT25010B/020B/040B 8707B–SEEPR–3/10 ...

Page 7

... Set Write Enable Latch 0000 X100 Reset Write Enable Latch 0000 X101 Read Status Register 0000 X001 Write Status Register 0000 A011 Read Data from Memory Array 0000 A010 Write Data to Memory Array Bit 4 Bit 3 Bit BP1 BP0 Table 3-4. Table 3-4 ...

Page 8

... If the WP pin is brought low or 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 reinitiate the serial communication. AT25010B/020B/040B [Preliminary] 8 Array Addresses Protected BP0 AT25010B AT25020B 0 None None 1 607F C0FF 0 40 ...

Page 9

Timing Diagrams Figure 4-1. Synchronous Data Timing (for Mode CSS V IH SCK HI Figure 4-2. WREN Timing CS SCK ...

Page 10

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 INSTRUCTION SI HIGH IMPEDANCE SO AT25010B/020B/040B ...

Page 11

Figure 4-7. WRITE Timing SCK INSTRUCTION SI HIGH IMPEDANCE SO Figure 4-8. HOLD Timing CS SCK HOLD SO 8707B–SEEPR–3/10 AT25010B/020B/040B [Preliminary ...

Page 12

Ordering Code Detail Atmel Designator Product Family Device Density 010 = 1k 020 = 2k 040 = 4k Device Revision AT25010B/020B/040B [Preliminary Shipping ...

Page 13

Part Markings AT25010B-SSHL |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| | PIN 1 INDICATOR (DOT) LINE 1: ATML=ATMEL H=MATERIAL SET/GRADE YWW=DATE CODE ...

Page 14

... LINE 2: Y=DATE CODE, XX=TRACE CODE AT25020B-SSHL |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| | PIN 1 INDICATOR (DOT) LINE 1: ATML=ATMEL H=MATERIAL SET/GRADE YWW=DATE CODE LINE 2: 52B=AT25020B, L=1.8 to 5.5v, @=COUNTRY of ORIGIN LINE 3: ATMEL LOT NUMBER AT25010B/020B/040B [Preliminary 8707B–SEEPR–3/10 ...

Page 15

... AT25020B-XHL PIN 1 INDICATOR (DOT) | |---|---|---|---|---|---| * A T |---|---|---|---|---|---| 5 2 |---|---|---|---|---|---|---| |---|---|---|---|---|---|---| LINE 1: AT=ATMEL H=MATERIAL SET/GRADE YWW=DATE CODE LINE 2: 52B=AT25020B, L=1.8 to 5.5v, @=COUNTRY of ORIGIN LINE 3: ATMEL LOT NUMBER AT25020B-CUL |---|---|---|---| |---|---|---|---| |---|---|---|---| |<-- PIN 1 THIS CORNER LINE 1: 52B=AT25020B, U=MATERIAL SET/GRADE LINE 2: YM=DATE CODE, XX=TRACE CODE ...

Page 16

... AT25020B-MEHL |---|---|---| |---|---|---| |---|---|---| * | PIN 1 INDICATOR (DOT) LINE 1: 52B=AT25020B LINE 2: Y=DATE CODE, XX=TRACE CODE AT25040B-SSHL PIN 1 INDICATOR (DOT) | |---|---|---|---|---|---| * A T |---|---|---|---|---|---| 5 4 |---|---|---|---|---|---|---| |---|---|---|---|---|---|---| LINE 1: AT=ATMEL H=MATERIAL SET/GRADE YWW=DATE CODE LINE 2: 54B=AT25040B, L=1.8 to 5.5v, @=COUNTRY of ORIGIN LINE 3: ATMEL LOT NUMBER ...

Page 17

AT25040B-CUL |---|---|---|---| |---|---|---|---| |---|---|---|---| |<-- PIN 1 THIS CORNER LINE 1: 54B=AT25040B, U=MATERIAL SET/GRADE LINE 2: YM=DATE CODE, XX=TRACE CODE AT25040B-MAHL |---|---|---| |---|---|---| |---|---|---| |---|---|---| ...

Page 18

Ordering Codes AT25010B Ordering Information Ordering Code (1) AT25010B-SSHL-B (NiPdAu Lead Finish) (2) AT25010B-SSHL-T (NiPdAu Lead Finish) (1) AT25010B-XHL-B (NiPdAu Lead Finish) (2) AT25010B-XHL-T (NiPdAu Lead Finish) (2) AT25010B-MAHL-T (NiPdAu Lead Finish) (2) AT25010B-MEHL-T (NiPdAu Lead Finish) (2) AT25010B-CUL-T ...

Page 19

... AT25020B-MEHL-T (NiPdAu Lead Finish) (2) AT25020B-CUL-T (SnAgCu Ball Finish) (3) AT25020B-WWU11L Note: 1. Bulk delivery in tubes (SOIC and TSSOP 100/tube). 2. Tape and reel delivery (SOIC 4k/reel. TSSOP, UDFN, XDFN and VFBGA 5k/reel). 3. Contact Atmel Sales for Wafer sales. 8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline Package (JEDEC SOIC) 8A2 8-lead, 0.170" ...

Page 20

AT25040B Ordering Information Ordering Code (1) AT25040B-SSHL-B (NiPdAu Lead Finish) (2) AT25040B-SSHL-T (NiPdAu Lead Finish) (1) AT25040B-XHL-B (NiPdAu Lead Finish) (2) AT25040B-XHL-T (NiPdAu Lead Finish) (2) AT25040B-MAHL-T (NiPdAu Lead Finish) (2) AT25040B-MEHL-T (NiPdAu Lead Finish) (2) AT25040B-CUL-T (SnAgCu Ball Finish) ...

Page 21

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 ...

Page 22

TSSOP GND Pin 1 indicator this corner SDA SCL Top View Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing ...

Page 23

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. ...

Page 24

XDFN 8 7 PIN # Top View Package Drawing Contact: packagedrawings@atmel.com AT25010B/020B/040B [Preliminary Side View TITLE 8ME1, 8-lead (1.80 x 2.20 mm Body) Extra Thin DFN (XDFN) ...

Page 25

VFBGA PIN 1 BALL PAD CORNER PIN 1 BALL PAD CORNER 1 (d1 (e1) Notes: 1. This drawing is for general information only. 2. Dimension ‘b’ is measured at maximum solder ball diameter. 3. Solder ball ...

Page 26

Revision History Doc. Rev. Date 8707B 3/2010 8707A 2/2010 AT25010B/020B/040B [Preliminary] 26 Comments Replace 8Y6 with 8MA2 Initial document release 8707B–SEEPR–3/10 ...

Page 27

... 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. © 2010 Atmel Corporation. All rights reserved. Atmel trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. International Atmel Asia Atmel Europe Unit 1-5 & ...

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