24AA128/24LC128/24FC128
128K I2C™ CMOS Serial EEPROM
Device Selection Table
Description
The Microchip Technology Inc. 24AA128/24LC128/
24FC128 (24XX128*) is a 16K x 8 (128 Kbit) Serial
Electrically Erasable PROM (EEPROM), 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 capabil-
ity of up to 64 bytes of data. This device is capable of
both random and sequential reads up to the 128K
boundary. Functional address lines allow up to eight
devices on the same bus, for up to 1 Mbit address
space. This device is available in the standard 8-pin
plastic DIP, SOIC (150 and 208 mil), TSSOP, MSOP,
DFN and 14-lead TSSOP packages.
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
24AA128
1.8-5.5V
400 kHz(1)
I
24LC128
24FC128
2.5-5.5V
1.8-5.5V
400 kHz
1 MHz(2)
I, E
I
Note 1: 100 kHz for VCC < 2.5V.
2: 400 kHz for VCC < 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
Block Diagram
• 2-wire serial interface bus, I2C™ compatible
• Cascadable for up to eight devices
• Self-timed erase/write cycle
A0 A1 A2WP
HV Generator
• 64-byte Page Write mode available
• 5 ms max write cycle time
I/O
Control
Logic
Memory
Control
Logic
EEPROM
Array
XDEC
• 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
Page Latches
I/O
SCL
YDEC
SDA
• Electrostatic discharge protection > 4000V
• Data retention > 200 years
VCC
• 8-pin PDIP, SOIC, TSSOP, MSOP and DFN
packages, 14-lead TSSOP package
Sense Amp.
R/W Control
VSS
• Standard and Pb-free finishes available
• Temperature ranges:
- Industrial (I):
- Automotive (E):
-40°C to +85°C
-40°C to +125°C
Package Types
PDIP/SOIC
TSSOP/MSOP *
TSSOP
DFN
14
1
2
3
4
5
6
7
VCC
A0
A1
A0
1
8
VCC
1
2
3
4
A0
A1
8
7
6
5
VCC
WP
1
2
8
7
A0
A1
VCC
WP
13
12
11
10
9
WP
NC
NC
NC
A1
A2
2
3
7
6
WP
NC
NC
NC
A2
A2
SCL
SDA
SCL
3
4
6
5
A2
SCL
SDA
VSS
SCL
SDA
VSS
4
5
SDA
VSS
8
VSS
Note: * Pins A0 and A1 are no-connects for the MSOP package only.
*24XX128 is used in this document as a generic part number for the 24AA128/24LC128/24FC128 devices.
2004 Microchip Technology Inc.
DS21191M-page 1