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
Features
• Low power CMOS technology
• 2-wire serial interface bus, I
• Cascadable for up to eight devices
• Self-timed ERASE/WRITE cycle
• 64-byte page-write mode available
• 5 ms max write-cycle time
• Hardware write protect for entire array
• Output slope control to eliminate ground bounce
• Schmitt trigger inputs for noise suppression
• 1,000,000 erase/write cycles
• Electrostatic discharge protection > 4000 V
• Data retention > 200 years
• 8-pin PDIP, SOIC, TSSOP, MSOP, and DFN
• 14-lead TSSOP package
• Temperature ranges:
Device Selection Table
Package Types
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
M
Note 1: 100 kHz for V
24AA256
24LC256
24FC256
- Maximum write current 3 mA at 5.5 V
- Maximum read current 400 µA at 5.5 V
- Standby current 100 nA typical at 5.5 V
packages
- Industrial (I):
- Automotive (E):
2002 Microchip Technology Inc.
Number
V
A0
A1
A2
SS
Part
1
2
3
4
PDIP/SOIC
1.8-5.5 V
2.5-5.5 V
2.5-5.5 V
Range
V
CC
8
7
6
5
256K I
CC
-40 C to +85 C
-40 C to +125 C
V
WP
SCL
SDA
CC
< 2.5 V.
Max. Clock
Frequency
400 kHz
2
400 kHz
C compatible
1 MHz
V
* Pins A0 and A1 are no connects for the MSOP package only.
A0
A1
A2
SS
2
(1)
24AA256/24LC256/24FC256
C
TSSOP/MSOP *
1
2
3
4
™
Ranges
Temp.
I, E
CMOS Serial EEPROM
I
I
8
7
6
5
Preliminary
V
WP
SCL
SDA
CC
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 (1.8 V to 5.5 V). 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. Func-
tional 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 14-lead TSSOP packages.
Block Diagram
V
SDA
NC
NC
NC
CONTROL
I/O
A0
A1
A2
SS
LOGIC
I/O
V
V
CC
SS
1
2
3
4
5
6
7
SCL
TSSOP
A0 A1 A2
CONTROL
MEMORY
14
13
12
10
11
LOGIC
9
8
WP
V
WP
NC
NC
NC
SCL
SDA
CC
XDEC
V
A0
A1
A2
SS
1
2
3
4
DS21203J-page 1
HV GENERATOR
DFN
PAGE LATCHES
R/W CONTROL
SENSE AMP
EEPROM
ARRAY
YDEC
8
7
6
5
V
WP
SCL
SDA
CC
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