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24LC256-I/SM Datasheet

  • 24LC256-I/SM

  • IC-SM-256K BIT SERIAL EEPROM

  • 191.11KB

  • 12頁

  • ETC

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24AA256/24LC256/24FC256
256K Bit I
2
C
鈩?/div>
CMOS Serial EEPROM
DEVICE SELECTION TABLE
Part
Number
24AA256
24LC256
24FC256
鈥?/div>
100
鈥?/div>
PACKAGE TYPE
PDIP
V
CC
Range
1.8-5.5V
2.5-5.5V
2.5-5.5V
Max Clock
Frequency
400 kHz
鈥?/div>
400 kHz
1 MHz
鈥?/div>
Temp
Ranges
C
I, E
I
A0
A1
A2
Vss
1
8
Vcc
WP
SCL
SDA
24XX256
2
3
4
7
6
5
kHz for V
CC
< 2.5V.
100 kHz for E temperature range.
SOIC
FEATURES
鈥?Low power CMOS technology
- Maximum write current 3 mA at 5.5V
- Maximum read current 400 碌A at 5.5V
- Standby current 100 nA typical at 5.5V
鈥?2-wire serial interface bus, I
2
C compatible
鈥?Cascadable for up to eight devices
鈥?Self-timed ERASE/WRITE cycle
鈥?64-byte page-write mode available
鈥?5 ms max write-cycle time
鈥?Hardware write protect for entire array
鈥?Output slope control to eliminate ground bounce
鈥?Schmitt trigger inputs for noise suppression
鈥?100,000 erase/write cycles guaranteed
鈥?Electrostatic discharge protection > 4000V
鈥?Data retention > 200 years
鈥?8-pin PDIP and SOIC (208 mil) packages
鈥?Temperature ranges:
- Commercial (C):
0擄C to +70擄C
- Industrial (I):
-40擄C to +85擄C
- Automotive (E):
-40擄C to +125擄C
A0
A1
A2
V
SS
1
8
V
CC
WP
SCL
SDA
24XX256
2
3
4
7
6
5
BLOCK DIAGRAM
A0 A1 A2 WP
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
XDEC
EEPROM
ARRAY
PAGE LATCHES
I/O
SCL
YDEC
SDA
DESCRIPTION
The Microchip Technology Inc. 24AA256/24LC256/
24FC256 (24XX256*) is a 32K x 8 (256K bit) 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. Func-
tional address lines allow up to eight devices on the
same bus, for up to 2M bit address space. This device
is available in the standard 8-pin plastic DIP and 8-pin
SOIC (208 mil) packages.
V
CC
V
SS
SENSE AMP
R/W CONTROL
I
2
C is a trademark of Philips Corporation.
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
漏
1999 Microchip Technology Inc.
Preliminary
DS21203F-page 1

24LC256-I/SM 產(chǎn)品屬性

  • Microchip

  • 電可擦除可編程只讀存儲器

  • 256 Kbit

  • 32 K x 8

  • 200 yr

  • 0.4 MHz

  • 3 mA

  • 2.5 V

  • + 85 C

  • SMD/SMT

  • SOIC-8

  • 900 ns

  • I2C

  • - 40 C

  • Tube

  • 90

  • 5.5 V

  • 2.5 V

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