24LC256-I/P

Manufacturer Part Number24LC256-I/P
Description256K, 32K X 8, 2.5V SER EE, IND
ManufacturerMicrochip Technology Inc.
24LC256-I/P datasheet
 

Specifications of 24LC256-I/P

Capacitance, Input10 pFCapacitance, Output10 pF
Current, Input, Leakage±1 μACurrent, Operating400 μA (Read), 3 mA (Write)
Current, Output, Leakage±1Data Retention>200 yrs.
Density256KInterface2-Wire
Memory TypeSerial EEPROMOrganization32K×8
Package TypePDIPTemperature, Operating-40 to +85 °C
Time, Access900 nsTime, Fall300 ns
Time, Rise300 nsVoltage, Esd≥4 kV
Voltage, Input, High1.75 VVoltage, Input, Low0.75 V
Voltage, Output, Low0.4 VVoltage, Supply2.5 to 5.5 V
Lead Free Status / Rohs StatusRoHS Compliant part Electrostatic Device  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
Page 1/6

Download datasheet (296Kb)Embed
Next
256K I
Device Selection Table
Part
V
Max. Clock
CC
Number
Range
Frequency
24AA256
1.7-5.5V
400 kHz
24LC256
2.5-5.5V
400 kHz
(2)
24FC256
1.7-5.5V
1 MHz
Note 1:
100 kHz for V
< 2.5V.
CC
2:
400 kHz for V
< 2.5V.
CC
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
• 2-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 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,
TSSOP and MSOP
• Pb-Free and RoHS Compliant
Package Types
PDIP/SOIC
A0
1
8
V
CC
A1
2
7
WP
A2
3
6
SCL
V
4
5
SDA
SS
Note: * Pins A0 and A1 are no connects for the MSOP package only.
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
© 2007 Microchip Technology Inc.
24AA256/24LC256/24FC256
2
C
CMOS Serial EEPROM
• Temperature Ranges:
- Industrial (I):
Temp.
- Automotive (E):
Ranges
(1)
I
Description:
I, E
The Microchip Technology Inc. 24AA256/24LC256/
I
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
I/O
Control
Logic
I/O
SCL
SDA
V
CC
V
SS
TSSOP/MSOP*
1
8
A0
V
CC
2
7
A1
WP
3
6
A2
SCL
4
5
V
SDA
SS
-40°C to +85°C
-40°C to +125°C
A0 A1A2
WP
HV Generator
Memory
EEPROM
Control
XDEC
Array
Logic
Page Latches
YDEC
Sense Amp.
R/W Control
DFN
A0
1
8
V
CC
2
A1
7
WP
A2
3
6
SCL
4
V
5
SDA
SS
DS21203P-page 1

24LC256-I/P Summary of contents

  • Page 1

    ... SCL SDA SS Note: * Pins A0 and A1 are no connects for the MSOP package only. *24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices. © 2007 Microchip Technology Inc. 24AA256/24LC256/24FC256 2 C CMOS Serial EEPROM ™ • Temperature Ranges: - Industrial (I): Temp ...

  • Page 2

    ... ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V .............................................................................................................................................................................6.5V CC All inputs and outputs w.r.t. V ......................................................................................................... -0. Storage temperature ...............................................................................................................................-65°C to +150°C Ambient temperature with power applied ................................................................................................-40°C to +125°C ESD protection on all pins ......................................................................................................................................................≥ † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...

  • Page 3

    ... This eliminates the need for This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model, which can be obtained from Microchip’s web site © 2007 Microchip Technology Inc. 24AA256/24LC256/24FC256 Electrical Characteristics: Industrial (I +1.7V to 5.5V ...

  • Page 4

    ... AC CHARACTERISTICS (Continued) Param. Sym. Characteristic No Output valid from clock AA (Note Bus free time: Time the bus BUF must be free before a new transmission can start 15 T Output fall time from V OF minimum to V maximum IL ≤ 100 Input filter spike suppression SP (SDA and SCL pins) ...

  • Page 5

    ... N NOTE DS21203P-page © 2007 Microchip Technology Inc. ...

  • Page 6

    ... C Serial e) 24LC256-E/P: 2.5V, PDIP package Serial f) 24LC256-I/SN: 2.5V, SOIC package Serial g) 24LC256T-I/SN: Tape and Reel, Industrial Temp., 2.5V, SOIC package. h) 24LC256-I/MS: 2.5V, MSOP package. i) 24FC256-I/P: 1.7V, High Speed, PDIP package. j) 24FC256-I/SN: 1.7V, High Speed, SOIC package. k) 24FC256T-I/SN: Tape and Reel, Industrial Temp, 1 ...