24AA64/24LC64/24FC64
64K I2C™ Serial EEPROM
Description:
Device Selection Table
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
The Microchip Technology Inc. 24AA64/24LC64/
24FC64 (24XX64*) is a 64 Kbit Electrically Erasable
PROM. The device is organized as a single block of 8K
x 8-bit memory with a 2-wire serial interface. Low-volt-
age design permits operation down to 1.7V, with
standby and active currents of only 1 μA and 1 mA,
respectively. It has been developed for advanced, low-
power applications such as personal communications
or data acquisition. The 24XX64 also has a page write
capability for up to 32 bytes of data. Functional address
lines allow up to eight devices on the same bus, for up
to 512 Kbits address space. The 24XX64 is available in
the standard 8-pin PDIP, surface mount SOIC, TSSOP,
DFN and MSOP packages.
24AA64
24LC64
24FC64
1.7-5.5
2.5-5.5
1.7-5.5
400 kHz(1)
400 kHz
1 MHz(2)
I
I, E
I
Note 1: 100 kHz for VCC <2.5V
2: 400 kHz for VCC <2.5V
Features:
• Single-supply with operation down to 1.7V for
24AA64/24FC64 devices, 2.5V for 24LC64
devices
• Low-power CMOS technology:
- Active current 1 mA, typical
Package Types
SOIC, TSSOP
PDIP, MSOP
- Standby current 1 μA, typical
A0
1
8
VCC
• 2-wire serial interface, I2C™ compatible
• Schmitt Trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz and 400 kHz clock compatibility
• 1 MHz clock for FC versions
1
2
3
4
8
7
6
5
A0
A1
VCC
WP
A1
A2
2
3
7
6
WP
SCL
A2
SCL
SDA
VSS
4
5
SDA
VSS
• Page write time 5 ms, typical
DFN
• Self-timed erase/write cycle
1
VCC
WP
A0
A1
A2
8
7
6
5
• 32-byte page write buffer
2
3
4
• Hardware write-protect
SCL
SDA
VSS
• ESD protection > 4,000V
• More than 1 million erase/write cycles
• Data retention > 200 years
Block Diagram
• Factory programming available
• Packages include 8-lead PDIP, SOIC, TSSOP,
MSOP and DFN
HV
Generator
WP
• Pb-free and RoHS compliant
• Temperature ranges:
I/O
Control
Logic
Memory
Control
Logic
EEPROM
Array
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
XDEC
Page
Latches
I/O
SCL
YDEC
SDA
VCC
VSS
Sense Amp.
R/W Control
* 24XX64 is used in this document as a generic part
number for the 24AA64/24LC64/24FC64 devices.
© 2007 Microchip Technology Inc.
DS21189L-page 1
MICROCHIP [ MICROCHIP ]
