Data Sheet

ManualsBrandsMicrochip Technology ManualsActive ComponentsFlash memory IC DIP 8 EEPROM 128 kBit 16 K x 8

2010-2021 Microchip Technology Inc.

and its subsidiaries

DS20001191U-page 1

24AA128/24LC128/24FC128

Features

Single Supply with Operation down to 1.7V for

24AA128/24FC128 devices, 2.5V for 24LC128

Devices

Low-Power CMOS Technology:

-Write current 3 mA, maximum

-Standby current 1 µA, maximum (I-temp.)

Two-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, 400 kHz and 1 MHz Compatibility

Page Write Time: 5 ms, Maximum

Self-Timed Erase/Write Cycle

64-Byte Page Write Buffer

Hardware Write-Protect

ESD Protection > 4,000V

More than 1 Million Erase/Write Cycles

Data Retention > 200 years

Factory Programming Available

RoHS Compliant

Temperature Ranges:

Automotive AEC-Q100 Qualified

Packages

8-Lead DFN, 8-Lead MSOP, 8-Lead PDIP,

8-Lead SOIC, 8-Lead SOIJ, 8-Lead TDFN and

8-Lead TSSOP

Description

The Microchip Te chnology Inc. 24XX128

(1)

is a 16K x8

(128 Kbit) Serial Electrically Erasable PROM

(EEPROM), capable of operation across a broad

voltage range (1.7V to 5.5V). It has been developed for

advanced, low-power applications such as personal

communications or data acquisition. This device also

has a page write capability of up to 64 bytes of data.

This device is capable of both random and sequential

reads up to the 128K boundary. Functional address

lines allow up to eight devices on the same bus, for up

to 1 Mbit address space.

Package Types

Device Selection Table

Part Number VCC Range

Maximum Clock

Frequency

Temperature

Ranges

Available Packages

24AA128 1.7V-5.5V 400 kHz

(1)

IMF, MS, P, SN, SM, MNY, ST

24LC128 2.5V-5.5V 400 kHz I, E

MF, MS, P, SN, SM, MNY, ST

24FC128 1.7V-5.5V 1MHz

(2)

MF, MS, P, SN, SM, MNY, ST

Note 1: 100 kHz for VCC < 2.5V.

2: 400 kHz for VCC < 2.5V.

-Industrial (I): -40 C to +85 C

-Extended (E) -40 C to +125 C

Note 1: 24XX128 is used in this document as a

generic part number for the

24AA128/24LC128/24FC128 devices.

VSS

VCC

SCL

SDA

24XX128

PDIP/MSOP

SOIC/SOIJ/TSSOP

VSS

VCC

SCL

SDA

24XX128

DFN/TDFN

VSS

SCL

SDA

24XX128

VCC

(1)

Note 1: Pins A0 and A1 are no-connects for the MSOP

package only.

128-Kbit I

C Serial EEPROM

Summary of content (42 pages)

PAGE 1
24AA128/24LC128/24FC128 128-Kbit I2C Serial EEPROM Device Selection Table VCC Range Maximum Clock Frequency 24AA128 1.7V-5.5V 400 kHz(1) I 24LC128 2.5V-5.5V 400 kHz I, E MF, MS, P, SN, SM, MNY, ST 24FC128 1.7V-5.5V 1 MHz(2) I MF, MS, P, SN, SM, MNY, ST Part Number Note 1: 2: Temperature Ranges Available Packages MF, MS, P, SN, SM, MNY, ST 100 kHz for VCC < 2.5V. 400 kHz for VCC < 2.5V. Features Description Single Supply with Operation down to 1.7V for 24AA128/24FC128 devices, 2.
PAGE 2
4AA128/24LC128/24FC128 Block Diagram A0 A1 A2 WP I/O Control Logic Memory Control Logic HV Generator XDEC EEPROM Array Page Latches I/O SCL YDEC SDA VCC VSS DS20001191U-page 2 Sense Amp. R/W Control 2010-2021 Microchip Technology Inc.
PAGE 3
24AA128/24LC128/24FC128 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings() VCC.............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS ..........................................................................................................-0.6V to VCC +1.0V Storage temperature ...................................................................
PAGE 4
24AA128/24LC128/24FC128 TABLE 1-2: AC CHARACTERISTICS Industrial (I): Extended (E): AC CHARACTERISTICS Param. Symbol No. 1 FCLK 2 THIGH 3 TLOW 4 TR 5 TF 6 Characteristic Clock Frequency Clock High Time Clock Low Time SDA and SCL Rise Time SDA and SCL Fall Time THD:STA Start Condition Hold Time 7 TSU:STA Start Condition Setup Time 8 THD:DAT Data Input Hold Time 9 TSU:DAT Data Input Setup Time 10 TSU:STO Stop Condition Setup Time Note 1: 2: 3: 4: VCC = +1.7V to 5.
PAGE 5
24AA128/24LC128/24FC128 TABLE 1-2: AC CHARACTERISTICS (CONTINUED) Industrial (I): Extended (E): AC CHARACTERISTICS Param. Symbol No. 11 TSU:WP 12 THD:WP 13 TAA 14 TBUF Characteristic WP Setup Time WP Hold Time Output Valid From Clock Bus Free Time: The Time The Bus Must Be Free Before a New Transmission Can Start VCC = +1.7V to 5.5V TA = -40°C to +85°C VCC = +2.5V to 5.5V TA = -40°C to +125°C Minimum Maximum Units Conditions 2.5V 4000 ns 1.7V VCC 600 ns 2.5V VCC 5.
PAGE 6
24AA128/24LC128/24FC128 FIGURE 1-1: BUS TIMING DATA 5 SCL 7 SDA IN 3 4 D3 2 8 10 9 6 16 14 13 SDA OUT WP DS20001191U-page 6 (protected) (unprotected) 11 12 2010-2021 Microchip Technology Inc.
PAGE 7
24AA128/24LC128/24FC128 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1.
PAGE 8
24AA128/24LC128/24FC128 3.0 FUNCTIONAL DESCRIPTION The 24XX128 supports a bidirectional two-wire bus and data transmission protocol. A device that sends data onto the bus is defined as a transmitter and a device receiving data as a receiver. The bus must be controlled by a host device which generates the Serial Clock (SCL), controls the bus access and generates the Start and Stop conditions while the 24XX128 works as a client.
PAGE 9
24AA128/24LC128/24FC128 FIGURE 4-2: ACKNOWLEDGE TIMING Acknowledge Bit SCL SDA 1 2 3 4 5 6 7 Data from transmitter Transmitter must release the SDA line at this point, allowing the Receiver to pull the SDA line low to acknowledge the previous eight bits of data. 2010-2021 Microchip Technology Inc. and its subsidiaries 8 9 1 2 3 Data from transmitter Receiver must release the SDA line at this point, allowing the Transmitter to continue sending data.
PAGE 10
24AA128/24LC128/24FC128 5.0 DEVICE ADDRESSING FIGURE 5-1: A control byte is the first byte received following the Start condition from the host device. The control byte consists of a 4-bit control code. For the 24XX128, 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). The Chip Select bits allow the use of up to eight 24XX128 devices on the same bus and are used to select which device is accessed.
PAGE 11
24AA128/24LC128/24FC128 6.0 WRITE OPERATIONS 6.1 Byte Write once the host has transmitted a Stop condition. Upon receipt of each word, the six lower Address Pointer bits, which form the byte counter, are internally incremented by one. If the host should transmit more than 64 bytes prior to generating the Stop condition, the address counter will roll over and the previously received data will be overwritten.
PAGE 12
24AA128/24LC128/24FC128 FIGURE 6-1: PAGE WRITE Bus Activity Host S T A R T SDA Line AAA S10102 1 00 Bus Activity Control Byte Address High Byte Address Low Byte Data Byte 0 S T O P Data Byte 63 P xx A C K A C K A C K A C K A C K x = dont care bit 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).
PAGE 13
24AA128/24LC128/24FC128 8.0 READ OPERATION 8.2 Random read operations allow the host to access any memory location in a random manner. To perform this type of read operation, the word address must first be set. This is done by sending the word address to the 24XX128 as part of a write operation (R/W bit set to 0). Once the word address is sent, the host generates a Start condition following the Acknowledge. This terminates the write operation, but not before the internal Address Pointer is set.
PAGE 14
24AA128/24LC128/24FC128 FIGURE 8-3: Bus Activity Host SEQUENTIAL READ Control Byte Data (n) Data (n + 1) S T O P Data (n + x) Data (n + 2) P SDA Line Bus Activity DS20001191U-page 14 A C K A C K A C K A C K N O A C K 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128 9.0 PACKAGING INFORMATION 9.1 Package Marking Information 8-Lead DFN-S Example XXXXXXX XXXXXXX YYWW NNN 24LC128 I/MF 2136 13F 8-Lead MSOP Example XXXXXX 4L128I YWWNNN 13613F 8-Lead PDIP (300 mil) Example XXXXXXXX XXXXXNNN YYWW 24AA128 I/P 13F 2136 8-Lead SOIC (3.90 mm) XXXXXXXX XXXXYYWW NNN 2010-2021 Microchip Technology Inc.
PAGE 16
24AA128/24LC128/24FC128 Package Marking Information (Continued) 8-Lead SOIJ (5.
PAGE 17
24AA128/24LC128/24FC128 2010-2021 Microchip Technology Inc.
PAGE 18
24AA128/24LC128/24FC128 DS20001191U-page 18 2010-2021 Microchip Technology Inc.
PAGE 19
24AA128/24LC128/24FC128 2010-2021 Microchip Technology Inc.
PAGE 20
24AA128/24LC128/24FC128        DS20001191U-page 20 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128        2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128    DS20001191U-page 22 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128                               2010-2021 Microchip Technology Inc.
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AA128/24LC128/24FC128                                      
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24AA128/24LC128/24FC128                                                               
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24AA128/24LC128/24FC128                                   
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24AA128/24LC128/24FC128                               
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24AA128/24LC128/24FC128    DS20001191U-page 28 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128    2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128    DS20001191U-page 30 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128                                                           
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24AA128/24LC128/24FC128                              
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24AA128/24LC128/24FC128                               
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24AA128/24LC128/24FC128 DS20001191U-page 34 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128 DS20001191U-page 36 2010-2021 Microchip Technology Inc.
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24AA128/24LC128/24FC128 APPENDIX A: REVISION HISTORY Revision U (11/2021) Replaced terminology Master and Slave with Host and Client respectively; Added Automotive Product Identification System; Removed CSP product offering; Updated DFN, PDIP, SOIC and TSSOP package drawings. Revision T (08/2019) Updated Packaging; Updated content throughout for clarification. Revision S (05/2010) Added TDFN Package; Updated Package Drawings and Product ID. Revision R (04/2009) Updated Chip Scale package.
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24AA128/24LC128/24FC128 THE MICROCHIP WEBSITE CUSTOMER SUPPORT Microchip provides online support via our website at www.microchip.com. This website is used as a means to make files and information easily available to customers.
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24AA128/24LC128/24FC128 PRODUCT IDENTIFICATION SYSTEM (NON-AUTOMOTIVE) To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. (1) PART NO. X X /XX Device Tape and Reel Option Temperature Range Package 24AA128 24LC128 24FC128 = 1.7V, 128-Kbit I2C Serial EEPROM = 2.5V, 128-Kbit I2C Serial EEPROM = 1.
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24AA128/24LC128/24FC128 PRODUCT IDENTIFICATION SYSTEM (AUTOMOTIVE) To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device [X](1) X /XX Tape and Reel Option Temperature Range Package XXX (2, 3) Variant Device: 24AA128 24LC128 = 1.7V, 128-Kbit I2C Serial EEPROM = 2.
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Note the following details of the code protection feature on Microchip products: Microchip products meet the specifications contained in their particular Microchip Data Sheet. Microchip believes that its family of products is secure when used in the intended manner, within operating specifications, and under normal conditions. Microchip values and aggressively protects its intellectual property rights.
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Worldwide Sales and Service AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://www.microchip.com/ support Web Address: www.microchip.