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24LC256 fiches techniques PDF

Microchip - EEPROM

Numéro de référence 24LC256
Description EEPROM
Fabricant Microchip 
Logo Microchip 





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24LC256 fiche technique
24AA256/24LC256/24FC256
256K I2C™ CMOS Serial EEPROM
Device Selection Table
Part
Number
VCC
Range
Max. Clock Temp.
Frequency Ranges
24AA256
1.7-5.5V 400 kHz(1)
24LC256
24FC256
2.5-5.5V
1.7-5.5V
400 kHz
1 MHz(2)
Note 1: 100 kHz for VCC < 2.5V.
2: 400 kHz for VCC < 2.5V.
I, E
I, E
I
Features:
• Single Supply with Operation Down to 1.7V for
24AA256 and 24FC256 Devices, 2.5V for
24LC256 Devices
• Low-Power CMOS Technology:
- Active current 400 uA, typical
- Standby current 100 nA, typical
• 2-Wire Serial Interface, I2CCompatible
• 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, DFN,
TDFN, TSSOP and MSOP
• Pb-Free and RoHS Compliant
Package Types
• Temperature Ranges:
- Industrial (I):
- Automotive (E):
-40C to +85C
-40C to +125C
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, DFN and TDFN packages. The
24AA256 is also available in the 8-lead Chip Scale
package.
Block Diagram
A0 A1A2 WP
HV Generator
I/O
Control
Logic
Memory
Control
Logic
I/O SCL
SDA
VCC
VSS
XDEC
EEPROM
Array
Page Latches
YDEC
Sense Amp.
R/W Control
PDIP/SOIC
TSSOP/MSOP(1)
DFN/TDFN
CS (Chip Scale)(2)
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
Note 1: * Pins A0 and A1 are no connects for the MSOP package only.
Note 2: Available in I-temp, “AA” only.
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
WP
VCC A1 A0
123
45
6 78
SDA SCL VSS
(TOP DOWN VIEW,
BALLS NOT VISIBLE)
A2
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
1998-2013 Microchip Technology Inc.
DS20001203T-page 1
Free Datasheet http://www.datasheet4u.com/

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