24LC256 Microchip Technology Inc., 24LC256 Datasheet
24LC256
Manufacturer Part Number
24LC256
Description
SOP8
Manufacturer
Microchip Technology Inc.
Datasheets
1.24LC256T-I-ST.pdf
(28 pages)
2.24LC256.pdf
(12 pages)
3.24LC256ISM.pdf
(12 pages)
4.24LC256.pdf
(28 pages)
5.24LC256.pdf
(28 pages)
Specifications of 24LC256
Date_code
08+
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
24LC256
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
24LC256-E/MS
Manufacturer:
MCP
Quantity:
100
Part Number:
24LC256-E/MS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
24LC256-E/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
24LC256-E/SM
Manufacturer:
MCP
Quantity:
366
Part Number:
24LC256-E/SM
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
24LC256-E/SN
Manufacturer:
MICROCHIP
Quantity:
6 600
Company:
Part Number:
24LC256-E/SN
Manufacturer:
MICROCHIP
Quantity:
6 600
Part Number:
24LC256-E/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
24LC256-E/ST
Manufacturer:
Microchip Technology
Quantity:
1 869
Device Selection Table
Features:
• Single Supply with Operation Down to 1.7V for
• Low-Power CMOS Technology:
• 2-Wire Serial Interface, I
• 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 1 Million Erase/Write Cycles
• Data Retention >200 years
• Factory Programming Available
• Packages Include 8-lead PDIP, SOIC, DFN,
• Pb-Free and RoHS Compliant
Package Types
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
© 2007 Microchip Technology Inc.
Note 1:
24AA256
24LC256
24FC256
24AA256 and 24FC256 Devices, 2.5V for
24LC256 Devices
- Active current 400 uA, typical
- Standby current 100 nA, typical
TSSOP and MSOP
Number
Note: * Pins A0 and A1 are no connects for the MSOP package only.
Part
2:
V
A0
A1
A2
SS
100 kHz for V
400 kHz for V
1
2
3
4
1.7-5.5V
2.5-5.5V
1.7-5.5V
PDIP/SOIC
Range
V
CC
256K I
CC
CC
8
7
6
5
2
C
Max. Clock
< 2.5V.
< 2.5V.
Frequency
400 kHz
™
1 MHz
400 kHz
V
WP
SCL
SDA
CC
Compatible
(2)
2
(1)
24AA256/24LC256/24FC256
C
™
Ranges
Temp.
CMOS Serial EEPROM
I, E
I
I
V
A0
A1
A2
SS
TSSOP/MSOP*
1
2
3
4
• Temperature Ranges:
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, TSSOP, MSOP and DFN packages.
Block Diagram
SDA
I/O
- Industrial (I):
- Automotive (E):
8
7
6
5
Control
Logic
V
V
I/O
CC
SS
V
WP
SCL
SDA
SCL
CC
A0 A1A2
Memory
Control
Logic
WP
V
A0
A1
A2
SS
-40°C to +85°C
-40°C to +125°C
XDEC
1
2
3
4
DFN
DS21203P-page 1
8
7
6
5
HV Generator
Page Latches
Sense Amp.
R/W Control
EEPROM
Array
V
WP
SCL
SDA
YDEC
CC
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