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24LCS52T-I/MS Datasheet

  • 24LCS52T-I/MS

  • EEPROM

  • 432.46KB

  • 22頁

  • ETC

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M
Features
24AA52/24LCS52
Description
The Microchip Technology Inc. 24AA52/24LCS52
(24XX52*) is a 2 Kbit Electrically Erasable PROM
capable of operation across a broad voltage range
(1.8V to 5.5V). This device has a software write protect
feature for the lower half of the array, as well as an
external pin that can be used to write protect the entire
array. The software write protect feature is enabled by
sending the device a special command. Once this fea-
ture has been enabled, it cannot be reversed. In addi-
tion to the software protect feature, there is a WP pin
that can be used to write protect the entire array,
regardless of whether the software write protect regis-
ter has been written or not. This allows the system
designer to protect none, half or all of the array,
depending on the application. The device is organized
as one block of 256 x 8-bit memory with a 2-wire serial
interface. Low voltage design permits operation down
to 1.8V, with standby and active currents of only 1 碌A
and 1 mA respectively. The 24XX52 also has a page-
write capability for up to 16 bytes of data. The 24XX52
is available in the standard 8-pin PDIP, surface mount
SOIC, TSSOP and MSOP packages.
2K I
2
C
鈩?/div>
Serial EEPROM with Software Write Protect
鈥?Single supply with operation down to 1.8V
鈥?Low power CMOS technology
- 1 mA active current typical
- 1 碌A standby current typical (I-temp)
鈥?Organized as 1 block of 256 bytes (256 x 8)
鈥?Software write protection for lower 128 bytes
鈥?Hardware write protection for entire array
鈥?2-wire serial interface bus, I
2
C鈩?compatible
鈥?Schmitt trigger inputs for noise suppression
鈥?Output slope control to eliminate ground bounce
鈥?100 kHz (24AA52) and 400 kHz (24LCS52)
compatibility
鈥?Self-timed write cycle (including auto-erase)
鈥?Page-write buffer for up to 16 bytes
鈥?3.5 ms typical write cycle time for page-write
鈥?ESD protection > 4,000V
鈥?1,000,000 erase/write cycles
鈥?Data retention > 200 years
鈥?8-lead PDIP, SOIC, TSSOP and MSOP package
鈥?Available for extended temperature ranges:
- Industrial (I): -40擄C to +85擄C
Block Diagram
A0 A1 A2
WP
HV Generator
Software write
protected area
(00h-7Fh)
Standard
Array
Device Selection Table
Part
Number
24AA52
24LCS52
V
CC
Range
1.8-5.5
2.5-5.5
Max Clock
Frequency
400 kHz
(1)
400 kHz
Temp
Ranges
I
I
I/O
Control
Logic
Memory
Control
Logic
XDEC
Note 1:
100 kHz for V
CC
<2.5V
SDA SCL
V
CC
V
SS
Package Types
PDIP/SOIC/TSSOP/MSOP
A0
A1
A2
V
SS
1
24XX52
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
Write Protect
Circuitry
YDEC
SENSE AMP
R/W CONTROL
*24XX52 is used in this document as a generic part number for the 24AA52/24LCS52 devices.
錚?/div>
2002 Microchip Technology Inc.
DS21166F-page 1

24LCS52T-I/MS 產品屬性

  • Microchip

  • 電可擦除可編程只讀存儲器

  • 2 Kbit

  • 256 x 8

  • 200 yr

  • 0.4 MHz

  • 3 mA

  • 2.2 V, 5.5 V

  • + 85 C

  • SMD/SMT

  • MSOP-8

  • 900 ns

  • I2C

  • - 40 C

  • Reel

  • 2500

  • 5.5 V

  • 2.2 V

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