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24LC256-I/P 参数 Datasheet PDF下载

24LC256-I/P图片预览
型号: 24LC256-I/P
PDF下载: 下载PDF文件 查看货源
内容描述: 256K I2C CMOS串行EEPROM [256K I2C CMOS Serial EEPROM]
分类和应用: 存储内存集成电路光电二极管双倍数据速率PC可编程只读存储器电动程控只读存储器电可擦编程只读存储器时钟
文件页数/大小: 26 页 / 465 K
品牌: MICROCHIP [ MICROCHIP TECHNOLOGY ]
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24AA256/24LC256/24FC256
256K I
2
C
CMOS Serial EEPROM
Device Selection Table
Part
Number
24AA256
24LC256
24FC256
Note 1:
2:
V
CC
Range
1.8-5.5V
2.5-5.5V
1.8-5.5V
Max. Clock
Frequency
400 kHz
(1)
400 kHz
1 MHz
(2)
Temp.
Ranges
I
I, E
I
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 (1.8V 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.
100 kHz for V
CC
< 2.5V.
400 kHz for V
CC
< 2.5V.
Features:
• Low-power CMOS technology:
- Maximum write current 3 mA at 5.5V
- Maximum read current 400
μA
at 5.5V
- Standby current 100 nA, typical at 5.5V
• 2-wire serial interface bus, I
2
C
compatible
• 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 > 4000V
• Data retention > 200 years
• 8-pin PDIP, SOIC, TSSOP, MSOP and DFN
packages, 14-lead TSSOP package
• Pb-free finishes available
• Temperature ranges:
- Industrial (I):
-40°C to +85°C
- Automotive (E):
-40°C to +125°C
Block Diagram
A0 A1A2 WP
HV Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page Latches
I/O
SCL
YDEC
SDA
V
CC
V
SS
Sense Amp.
R/W Control
Package Types
PDIP/SOIC
A0
A1
A2
V
SS
1
24XX256
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
A0
A1
A2
V
SS
TSSOP/MSOP*
1
2
3
4
24XX256
8
7
6
5
V
CC
WP
SCL
SDA
A0
A1
A2
V
SS
1
2
3
4
24XX256
DFN
8 V
CC
7 WP
6 SCL
5 SDA
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.
©
2005 Microchip Technology Inc.
DS21203N-page 1