24AA024 Datasheet, PDF (1/22 Pages) Microchip Technology – 2K I2C Serial EEPROM

24AA024/24LC024/24AA025/24LC025
2K I²C^™ Serial EEPROM
Device Selection Table
Part
Number
VCC Range
Max
Clock
Temp. Write
Range Protect
24AA024 1.8V - 5.5V 400 KHz⁽¹⁾ I
Yes
24AA025 1.8V - 5.5V 400 KHz⁽¹⁾ I
No
24LC024 2.5V - 5.5V 400 KHz I
Yes
24LC025 2.5V - 5.5V 400 KHz I
No
Note 1: 100 KHz for VCC < 2.5V
Features
• Single supply with operation from 1.8V to 5.5V
• Low-power CMOS technology
- 1 mA active current typical
- 1 µA standby current typical at 5.5V
• Organized as a single block of 256 bytes (256 x 8)
• Hardware write protection for entire array
(24XX024)
• 2-wire serial interface bus, I²C™ compatible
• 100 kHz and 400 kHz clock compatibility
• Page write buffer for up to 16 bytes
• Self-timed write cycle (including auto-erase)
• 10 ms max. write cycle time
• Address lines allow up to eight devices on bus
• 1,000,000 erase/write cycles
• ESD protection > 4,000V
• Data retention > 200 years
• 8-pin PDIP, SOIC, TSSOP and MSOP packages
• Available for extended temperature ranges
- Industrial (I): -40°C to +85°C
Pin Function Table
Name
VSS
SDA
SCL
VCC
A0, A1, A2
WP
Function
Ground
Serial Data
Serial Clock
1.8V to 5.5V Power Supply
Chip Selects
Hardware Write-Protect (24LC024)
Description
The Microchip Technology Inc. 24AA024/24LC024/
24AA025/24LC025 is a 2 Kbit Serial Electrically
Erasable PROM with a voltage range of 1.8V to 5.5V.
The device is organized as a single block of 256 x 8-bit
memory with a 2-wire serial interface. Low current
design permits operation with typical standby and
active currents of only 1 µA and 1 mA, respectively.
The device has a page write capability for up to 16
bytes of data. Functional address lines allow the
connection of up to eight 24AA024/24LC024/
24AA025/24LC025 devices on the same bus for up to
16K bits of contiguous EEPROM memory. The device
is available in the standard 8-pin PDIP, 8-pin SOIC
(150 mil), TSSOP and MSOP packages.
Package Types
PDIP/SOIC
A0 1
8 VCC
A1 2
A2 3
7 WP*
6 SCL
VSS 4
TSSOP/MSOP
A0 ¹
A1 ²
A2 ³
VSS ⁴
5 SDA
8 _VCC
7 _WP*
6 _SCL
5 _SDA
Block Diagram
A0 A1 A2
WP*
HV Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
SDA SCL
VCC
VSS
EEPROM
Array
Write-Protect
Circuitry
YDEC
Sense Amp.
R/W Control
Note:
*WP pin available only on 24XX024. This pin
has no internal connection on 24XX025.
 2004 Microchip Technology Inc.
DS21210G-page 1