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24LC256T-I/SN

Description
EEPROM Serial-2Wire 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R
Categorystorage    storage   
File Size956KB,42 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Download user manual Parametric View All

24LC256T-I/SN Overview

EEPROM Serial-2Wire 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R

24LC256T-I/SN Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.32.00.51
Chip Density (bit)256K
Organization32Kx8
Address Bus Width (bit)3
ProgrammabilityYes
Data Retention (Year)200(Min)
Max. Access Time (ns)900
Maximum Operating Frequency (MHz)0.4
Process TechnologyCMOS
Interface TypeSerial-2Wire
Minimum Operating Supply Voltage (V)2.5
Typical Operating Supply Voltage (V)5|3.3
Maximum Operating Supply Voltage (V)5.5
Programming Voltage (V)2.5 to 5.5
Operating Current (mA)3
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
Hardware Data ProtectionYes
PackagingTape and Reel
Number of Bits per Word (bit)8
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.25(Min)
Package Length4.9
Package Width3.9
PCB changed8
Lead ShapeGull-wing
24AA256/24LC256/24FC256
256K I
2
C Serial EEPROM
Device Selection Table
Part Number
24AA256
24LC256
24FC256
Note 1:
2:
V
CC
Range
1.7V-5.5V
2.5V-5.5V
1.7V-5.5V
100 kHz for V
CC
< 2.5V.
400 kHz for V
CC
< 2.5V.
Max. Clock Frequency
400 kHz
(1)
400 kHz
1 MHz
(2)
Temp. Ranges
I, E
I, E
I
Available Packages
MF, MS, P, SN, SM, MNY, ST, CS
MF, MS, P, SN, SM, MNY, ST
MF, MS, P, SN, SM, MNY, ST
Features
• Single Supply with Operation Down to 1.7V for
24AA256 and 24FC256 Devices, 2.5V for
24LC256 Devices
• Low-Power CMOS Technology:
- Write current: 3 mA, maximum
- Standby current: 1 µA maximum (I-temp.)
• Two-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, 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 >4000V
• More than One Million Erase/Write Cycles
• Data Retention >200 years
• Factory Programming Available
• RoHS Compliant
• Temperature Ranges:
- Industrial (I):
-40C to +85C
- Extended (E):
-40C to +125C
• Automotive AEC-Q100 Qualified
Packages
• 8-Lead DFN, 8-Lead MSOP, 8-Lead PDIP,
8-Lead SOIC, 8-Lead SOIJ, 8-Lead TDFN,
8-Lead TSSOP and 8-Ball CSP
Description
The Microchip Technology Inc. 24XX256
(1)
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.
Note 1:
24XX256 is used in this document as a
generic part number for the 24AA256/
24LC256/24FC256 devices.
Package Types
8-Lead DFN/TDFN
(Top View)
24XX256
A0
1
8
7
6
5
V
CC
WP
SCL
SDA
A1 2
A2 3
V
SS
4
Note
1:
8-Lead PDIP/MSOP
(Top View)
A0
A1
A2
V
SS
1
1
8
8
(1)
8-Lead SOIC/SOIJ/TSSOP
(Top View)
2
3
4
24XX256
A0
A1
A2
V
SS
1
8
7
6
5
V
CC
WP
SCL
SDA
WP
8-Ball CSP
(Top View)
V
CC
A1 A0
1
4
6
7
2
5
8
3
A2
V
CC
WP
SCL
SDA
2
2
3
3
4
4
24XX256
7
7
6
6
5
5
SDA SCL V
SS
Pins A0 and A1 are no connects for the MSOP package only.
1998-2019 Microchip Technology Inc.
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