Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsIntegrated Circuits (ICs)SOIC 8 2 kBit 256 x 8

24AA024/24LC024/24AA025/24LC025

Device Selection Table

Features:

• Single Supply with Operation from 1.7V to 5.5V

for 24AA024/24AA025 Devices, 2.5V for

24LC024/24LC025 Devices

• Low-Power CMOS Technology:

- Read current 1 mA, typical

- Standby current 1 μA, typical

• 2-Wire Serial Interface, I

C™ Compatible

• Cascadable up to Eight Devices

• Schmitt Trigger Inputs for Noise Suppression

• Output Slope Control to Eliminate Ground Bounce

• 100 kHz and 400 kHz Clock Compatibility

• Page Write Time 5 ms Maximum

• Self-timed Erase/Write Cycle

• 16-Byte Page Write Buffer

• Hardware Write-Protect on 24XX024 Devices

• ESD Protection >4,000V

• More than 1 Million Erase/Write Cycles

• Data Retention >200 years

• Factory Programming Available

• Packages include 8-lead PDIP, SOIC, TSSOP,

DFN, TDFN and MSOP

• 6-Lead SOT-23 Package, 24XX025 only

• Pb-Free and RoHS Compliant

• Temperature Ranges:

- Industrial (I): -40°C to +85°C

- Automotive (E): -40°C to +125°C

Description:

The Microchip Technology Inc. 24AA024/24LC024/

24AA025/24LC025 is a 2 Kbit Serial Electrically

Erasable PROM with a voltage range of 1.7V to 5.5V.

The device is organized as a single block of 256 x 8-bit

memory with a 2-wire serial interface. Low current

design permits operation with typical standby and

active currents of only 1 μA and 1 mA, respectively.

The device has a page write capability for up to 16

bytes of data. Functional address lines allow the

connection of up to eight 24AA024/24LC024/

24AA025/24LC025 devices on the same bus for up to

16K bits of contiguous EEPROM memory. The device

is available in the standard 8-pin PDIP, 8-pin SOIC

(3.90 mm), TSSOP, 2x3 DFN and TDFN and MSOP

packages. The 24AA025/24LC025 is also available in

the 6-lead SOT-23 package.

Package Types

Block Diagram

Part

Number

VCC

Range

Max

Clock

Temp.

Range

Write

Protect

24AA024 1.7V-5.5V 400 kHz

(1)

IYes

24AA025 1.7V-5.5V 400 kHz

(1)

INo

24LC024 2.5V-5.5V 400 kHz I, E Yes

24LC025 2.5V-5.5V 400 kHz I, E No

Note 1: 100 kHz for V

CC < 2.5V

Note: WP pin is not internally connected on the

24XX025

VCC

SCL

SDA

PDIP/SOIC/TSSOP/MSOP

SCL

SDA

SOT-23

SCL

SDA

DFN/TDFN

I/O

Control

Logic

Memory

Control

Logic

XDEC

HV Generator

EEPROM

Array

Write-Protect

Circuitry

YDEC

VSS

Sense Amp.

R/W Control

SDA

SCL

A0 A1 A2 WP*

2K I

™

Serial EEPROM

Summary of content (30 pages)

PAGE 1
24AA024/24LC024/24AA025/24LC025 2K I2C™ Serial EEPROM Device Selection Table Description: Part Number VCC Range Max Clock 24AA024 1.7V-5.5V 400 kHz(1) 24AA025 1.7V-5.5V (1) I No 24LC024 2.5V-5.5V 400 kHz I, E Yes 2.5V-5.5V 400 kHz I, E No 24LC025 Note 1: 400 kHz Temp. Write Range Protect I Yes 100 kHz for VCC < 2.5V Features: • Single Supply with Operation from 1.7V to 5.5V for 24AA024/24AA025 Devices, 2.
PAGE 2
4AA024/24LC024/24AA025/24LC025 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings(†) VCC .............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS ......................................................................................................... -0.3V to VCC +1.0V Storage temperature ..........................................................
PAGE 3
24AA024/24LC024/24AA025/24LC025 TABLE 1-2: AC CHARACTERISTICS Industrial (I): TA = -40°C to +85°C, VCC = +1.7V to +5.5V Automotive (E): TA = -40°C to +125°C, VCC = +2.5V to +5.5V AC CHARACTERISTICS Param. No. Symbol Characteristic Min. Max. Units Conditions 1 FCLK Clock frequency — — 100 400 kHz 1.7V ≤ VCC < 1.8V 1.8V ≤ VCC ≤ 5.5V 2 THIGH Clock high time 4000 600 — — ns 1.7V ≤ VCC < 1.8V 1.8V ≤ VCC ≤ 5.5V 3 TLOW Clock low time 4700 1300 — — ns 1.7V ≤ VCC < 1.8V 1.8V ≤ VCC ≤ 5.
PAGE 4
24AA024/24LC024/24AA025/24LC025 FIGURE 1-1: BUS TIMING DATA 5 SCL 7 SDA In 3 4 D4 2 8 10 9 6 16 14 13 SDA Out WP DS21210N-page 4 (protected) (unprotected) 11 12 © 2009 Microchip Technology Inc.
PAGE 5
24AA024/24LC024/24AA025/24LC025 2.0 PIN DESCRIPTIONS Pin Function Table Name PDIP SOIC TSSOP DFN/TDFN MSOP SOT-23 Description A0 1 1 1 1 1 5 Address Pin AO A1 2 2 2 2 2 4 Address Pin A1 A2 3 3 3 3 3 — Address Pin A2 VSS 4 4 4 4 4 2 Ground SDA 5 5 5 5 5 3 Serial Address/Data I/O SCL 6 6 6 6 6 1 Serial Clock WP 7 7 7 7 7 — Write-Protect Input VCC 8 8 8 8 8 6 +1.7 to 5.5V Power Supply 2.
PAGE 6
24AA024/24LC024/24AA025/24LC025 4.0 BUS CHARACTERISTICS The data on the line must be changed during the low period of the clock signal. There is one bit of data per clock pulse. The following bus protocol has been defined: • Data transfer may be initiated only when the bus is not busy. • During data transfer, the data line must remain stable whenever the clock line is high. Changes in the data line while the clock line is high will be interpreted as a Start or Stop condition.
PAGE 7
24AA024/24LC024/24AA025/24LC025 5.0 DEVICE ADDRESSING A control byte is the first byte received following the Start condition from the master device (Figure 5-1). The control byte consists of a four-bit control code. For the 24AA024/24LC024/24AA025/24LC025, this is set as ‘1010’ binary for read and write operations. The next three bits of the control byte are the Chip Select bits (A2, A1, A0).
PAGE 8
24AA024/24LC024/24AA025/24LC025 6.0 WRITE OPERATIONS 6.1 Byte Write The higher-order four bits of the word address remain constant. If the master should transmit more than 16 bytes prior to generating the Stop condition, the address counter will roll over and the previously received data will be overwritten. As with the byte-write operation, once the Stop condition is received, an internal write cycle will begin (Figure 6-2).
PAGE 9
24AA024/24LC024/24AA025/24LC025 7.0 ACKNOWLEDGE POLLING Since the device will not acknowledge during a write cycle, this can be used to determine when the cycle is complete (this feature can be used to maximize bus throughput). Once the Stop condition for a Write command has been issued from the master, the device initiates the internally-timed write cycle, with ACK polling being initiated immediately.
PAGE 10
24AA024/24LC024/24AA025/24LC025 8.0 READ OPERATIONS Read operations are initiated in the same way as write operations, with the exception that the R/W bit of the slave address is set to ‘1’. There are three basic types of read operations: current address read, random read and sequential read. 8.1 Current Address Read The 24AA024/24LC024/24AA025/24LC025 contains an address counter that maintains the address of the last word accessed, internally incremented by one.
PAGE 11
24AA024/24LC024/24AA025/24LC025 FIGURE 8-2: RANDOM READ BUS ACTIVITY MASTER S T A R T Control Byte S SDA LINE BUS ACTIVITY MASTER Control Byte S T O P Data (n) P S A C K A C K BUS ACTIVITY FIGURE 8-3: S T A R T Word Address (n) N O A C K A C K SEQUENTIAL READ Control Byte Data (n) Data (n + 1) Data (n + 2) S T O P Data (n + x) P SDA LINE BUS ACTIVITY © 2009 Microchip Technology Inc.
PAGE 12
24AA024/24LC024/24AA025/24LC025 9.0 PACKAGING INFORMATION 9.1 Package Marking Information 8-Lead PDIP (300 mil) XXXXXXXX T/XXXNNN YYWW 8-Lead SOIC (3.90 mm) XXXXXXXT XXXXYYWW NNN 8-Lead TSSOP Example: 24LC024I SN e3 0519 13F Example: 4L24 TYWW I519 NNN 13F XXXXT YWWNNN 8-Lead 2x3 DFN XXX YWW NN 8-Lead 2x3 TDFN DS21210N-page 12 24LC024 I/P e3 13F 0519 XXXX 8-Lead MSOP XXX YWW NN Example: Example: 4L24I 51913F Example: 2P4 519 13 Example: AP4 519 13 © 2009 Microchip Technology Inc.
PAGE 13
24AA024/24LC024/24AA025/24LC025 Example: 6-Lead SOT-23 HQEC XXNN 1st Line Marking Codes Part Number DFN TSSOP TDFN SOT-23 MSOP I-TEMP E-TEMP I-TEMP E-TEMP I-TEMP E-TEMP 24AA024 4A24 4A24T 2P1 — AP1 — — — 24LC024 4L24 4L24T 2P4 AP5 AP4 2P5 — — 24AA025 4A25 4A25T 2R1 — AR1 — HQNN HRNN 24LC025 4L25 4L25T 2R4 AR5 AR4 2R5 HMNN HPNN Note: T = Temperature grade (I, E) Legend: XX...
PAGE 14
24AA024/24LC024/24AA025/24LC025 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 N NOTE 1 E1 1 3 2 D E A2 A L A1 c e eB b1 b 6 &! ' ! 9 ' &! 7"') % ! 7,8. 7 7 & ; < & & 7: 1 , = = - 1 ! & & = = .
PAGE 15
24AA024/24LC024/24AA025/24LC025 ! "" #$ %& ! ' 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 D e N E E1 NOTE 1 1 2 3 α h b h A2 A c φ L A1 L1 6 &! ' ! 9 ' &! 7"') % ! β 99 . . 7 7 7: ; < & : 8 & = = = = = # # 4 4 !! & # %% + 1 , : > #& .
PAGE 16
24AA024/24LC024/24AA025/24LC025 ! "" #$ %& ! ' 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 DS21210N-page 16 © 2009 Microchip Technology Inc.
PAGE 17
24AA024/24LC024/24AA025/24LC025 () )" * ! ( +%+ ( ! 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 D N E E1 NOTE 1 1 2 b e c A φ A2 A1 L L1 6 &! ' ! 9 ' &! 7"') % ! 99 . . 7 7 7: ; < & : 8 & = = < = # # 4 4 !! & # %% ? 1 , : > #& .
PAGE 18
24AA024/24LC024/24AA025/24LC025 , " ! * - , , ! 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 D N E E1 NOTE 1 1 2 e b A2 A c φ L L1 A1 6 &! ' ! 9 ' &! 7"') % ! 99 . . 7 7 7: ; < & : 8 & = = < = # # 4 4 !! & # %% ? 1 , : > #& . # # 4 > #& .
PAGE 19
24AA024/24LC024/24AA025/24LC025 . $ * - ,' /0 0 %& . 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 D e b N N L K E2 E EXPOSED PAD NOTE 1 2 1 2 NOTE 1 1 D2 BOTTOM VIEW TOP VIEW A A3 A1 NOTE 2 6 &! ' ! 9 ' &! 7"') % ! 99 . .
PAGE 20
24AA024/24LC024/24AA025/24LC025 . $ * - ,' /0 0 %& . 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 DS21210N-page 20 © 2009 Microchip Technology Inc.
PAGE 21
24AA024/24LC024/24AA025/24LC025 . $ * - , /0 0 %12 ( . 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 © 2009 Microchip Technology Inc.
PAGE 22
24AA024/24LC024/24AA025/24LC025 . $ * - , /0 0 %12 ( . 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 DS21210N-page 22 © 2009 Microchip Technology Inc.
PAGE 23
24AA024/24LC024/24AA025/24LC025 3 ! (" " !( !( / 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4 b 4 N E E1 PIN 1 ID BY LASER MARK 1 2 3 e e1 D A A2 c φ L A1 L1 6 &! ' ! 9 ' &! 7"') % ! 99 . . 7 7 7: & 1 , :"&! # 9 # & 1 , : 8 & ; ? = < = - = : > #& .
PAGE 24
AA024/24LC024/24AA025/24LC025 APPENDIX A: REVISION HISTORY Revision F Corrections to Section 1.0, Electrical Characteristics. Revision G Added part number 24AA025 to document. Correction to Section 1.0, Ambient Temperature. Revision H Added DFN package. Revision J (02/2007) Revised Features section; Revised Pin Function Table; Changed 1.8V to 1.7V, Table 1-1 and Table 1-2; Replaced Package Drawings; Replaced On-line Support page; Revised Product ID section.
PAGE 25
24AA024/24LC024/24AA025/24LC025 THE MICROCHIP WEB SITE CUSTOMER SUPPORT Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers.
PAGE 26
24AA024/24LC024/24AA025/24LC025 READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this document.
PAGE 27
24AA024/24LC024/24AA025/24LC025 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device X /XX Temperature Range Device: Package 24AA024: 1.7V, 2 Kbit Addressable Serial EEPROM with WP pin. 24AA024T:1.7V, 2 Kbit Addressable Serial EEPROM (Tape and Reel) with WP pin. 24LC024: 2.5V, 2 Kbit Addressable Serial EEPROM with WP pin. 24LC024T:2.5V, 2 Kbit Addressable Serial EEPROM (Tape and Reel) with WP pin.
PAGE 29
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
PAGE 30
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