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24AA256-I/P

Description
Memory interface type: I2C Memory capacity: 256Kb (32K x 8) Operating voltage: 1.7V ~ 5.5V Memory type: Non-Volatile -40°C ~ 85°C
Categorystorage    storage   
File Size1MB,42 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Download user manual Parametric View All

24AA256-I/P Overview

Memory interface type: I2C Memory capacity: 256Kb (32K x 8) Operating voltage: 1.7V ~ 5.5V Memory type: Non-Volatile -40°C ~ 85°C

24AA256-I/P Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeDIP
package instructionDIP, DIP8,.3
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time15 weeks
Maximum clock frequency (fCLK)0.4 MHz
Data retention time - minimum200
Durability1000000 Write/Erase Cycles
I2C control byte1010DDDR
JESD-30 codeR-PDIP-T8
JESD-609 codee3
length9.271 mm
memory density262144 bit
Memory IC TypeEEPROM
memory width8
Number of functions1
Number of terminals8
word count32768 words
character code32000
Operating modeSYNCHRONOUS
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
organize32KX8
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP8,.3
Package shapeRECTANGULAR
Package formIN-LINE
Parallel/SerialSERIAL
Peak Reflow Temperature (Celsius)NOT APPLICABLE
power supply1.8/5 V
Certification statusNot Qualified
reverse pinoutNO
Maximum seat height5.334 mm
Serial bus typeI2C
Maximum standby current0.000005 A
Maximum slew rate0.003 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1.7 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT APPLICABLE
width7.62 mm
Maximum write cycle time (tWC)5 ms
write protectHARDWARE
Base Number Matches1
24AA256/24LC256/24FC256
256K I
2
C™ CMOS Serial EEPROM
Device Selection Table
Part
Number
24AA256
24LC256
24FC256
Note 1:
2:
V
CC
Range
1.7-5.5V
2.5-5.5V
1.7-5.5V
Max. Clock
Frequency
400 kHz
(1)
400 kHz
1 MHz
(2)
Temp.
Ranges
I, E
I, E
I
• Temperature Ranges:
- Industrial (I):
- Automotive (E):
-40C to +85C
-40C to +125C
Description:
The Microchip Technology Inc. 24AA256/24LC256/
24FC256 (24XX256*) is a 32K x 8 (256 Kbit) Serial
Electrically Erasable PROM, 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 256K boundary.
Functional address lines allow up to eight devices on
the same bus, for up to 2 Mbit address space. This
device is available in the standard 8-pin plastic DIP,
SOIC, SOIJ, TSSOP, MSOP, DFN and TDFN pack-
ages. The 24AA256 is also available in the 8-lead Chip
Scale package.
100 kHz for V
CC
< 2.5V.
400 kHz for V
CC
< 2.5V.
Features:
• Single Supply with Operation Down to 1.7V for
24AA256 and 24FC256 Devices, 2.5V for
24LC256 Devices
• Low-Power CMOS Technology:
- Read current: 400 uA max. at 5.5V, 400 kHz
- Standby current: 1 uA max. at 3.6V, I-temp
• 2-Wire Serial Interface, I
2
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 Max.
• Self-Timed Erase/Write Cycle
• 64-Byte Page Write Buffer
• Hardware Write-Protect
• ESD Protection >4000V
• More than One Million Erase/Write Cycles
• Data Retention >200 years
• Factory Programming Available
• Packages Include 8-lead PDIP, SOIC, SOIJ, DFN,
TDFN, TSSOP and MSOP
• RoHS Compliant
Block Diagram
A0 A1A2 WP
HV Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page Latches
I/O
SCL
YDEC
SDA
V
CC
V
SS
Sense Amp.
R/W Control
Package Types
PDIP/SOIC/SOIJ
A0
A1
A2
V
SS
1
24XX256
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
A0
A1
A2
V
SS
TSSOP/MSOP
(1)
1
24XX256
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
A0
A1
A2
V
SS
1
24XX256
2
3
4
DFN/TDFN
8 V
CC
7 WP
6 SCL
5 SDA
WP
6
CS (Chip Scale)
(2)
V
CC
A1 A0
1
4
7
2
5
8
3
A2
SDA SCL V
SS
(TOP DOWN VIEW,
BALLS NOT VISIBLE)
Note 1:
* Pins A0 and A1 are no connects for the MSOP package only.
Note 2:
Available in I-temp, “AA” only.
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
1998-2013 Microchip Technology Inc.
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