24XX64X
24XX64
24AA64/24LC64
2
64K I C Serial EEPROM
Device Selection Table Description
The Microchip Technology Inc. 24AA64/24LC64
Part VCC Max Clock Temp
(24XX64*) is a 64 Kbit Electrically Erasable PROM.
Number Range Frequency Ranges
The device is organized as eight blocks of 1K x 8-bit
(1)
24AA64 1.8-5.5 400 kHz I memory with a 2-wire serial interface. Low-voltage
design permits operation down to 1.8V, with standby
24LC64 2.5-5.5 400 kHz I, E
and active currents of only 1 A and 1mA,
Note 1: 100 kHz for VCC <2.5V
respectively. It has been developed for advanced, low-
power applications such as personal communications
Features
or data acquisition. The 24XX64 also has a page write
capability for up to 32 bytes of data. Functional address
Single supply with operation down to 1.8V
lines allow up to eight devices on the same bus, for up
Low-power CMOS technology
to 512 Kbits address space. The 24XX64 is available in
- 1 mA active current typical
the standard 8-pin PDIP, surface mount SOIC, TSSOP
-1 A standby current (max.) (I-temp) and MSOP packages.
Organized as 8 blocks of 8K bit (64K bit)
2
Package Types
2-wire serial interface bus, I C compatible
PDIP/SOIC/TSSOP ROTATED TSSOP
Cascadable for up to eight devices
(24AA64X/24LC64X)
/MSOP
Schmitt Trigger inputs for noise suppression
A0 1 8 Vcc
Output slope control to eliminate ground bounce
1 8
WP SCL
2 7
100 kHz (24AA64) and 400 kHz (24LC64) A1 WP
7
Vcc 2 SDA
compatibility
A2 3 6 SCL A0 3 6 Vss
5
A1 4 A2
Self-timed write cycle (including auto-erase)
Vss 4 5 SDA
Page write buffer for up to 32 bytes
2 ms typical write cycle time for page write
Block Diagram
Hardware write-protect for entire memory
Can be operated as a serial ROM
HV
WP
Factory programming (QTP) available
Generator
ESD protection > 4,000V
1,000,000 erase/write cycles
I/O Memory
EEPROM
Data retention > 200 years
Control Control XDEC
Array
8-lead PDIP, SOIC, TSSOP and MSOP packages Logic Logic
Page
Standard and Pb-free finishes available
Latches
Available temperature ranges:
I/O
- Industrial (I): -40C to +85C
SCL
YDEC
- Automotive (E): -40C to +125C
SDA
VCC
Sense Amp.
VSS
R/W Control
* 24XX64 is used in this document as a generic part number for the 24AA64/24LC64 devices.
2003 Microchip Technology Inc. DS21189H-page 124AA64/24LC64
1.0 ELECTRICAL CHARACTERISTICS
()
Absolute Maximum Ratings
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.3V to VCC +1.0V
Storage temperature ...............................................................................................................................-65C to +150C
Ambient temperature with power applied................................................................................................-65C to +125C
ESD protection on all pins ...................................................................................................................................................... 4kV
NOTICE: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at those or any other conditions
above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
TABLE 1-1: DC CHARACTERISTICS
VCC = +1.8V to +5.5V
DC CHARACTERISTICS Industrial (I): TA = -40C to +85C
Automotive (E): TA = -40C to +125C
Param.
Sym Characteristic Min Typ Max Units Conditions
No.
IH WP, SCL and SDA pins
D1 V
D2 High-level input voltage 0.7 VCC V
D3 VIL Low-level input voltage 0.3 VCC V
D4 VHYS Hysteresis of Schmitt 0.05 VCC V (Note 1)
Trigger inputs
D5 VOL Low-level output voltage 0.40 V IOL = 3.0 mA, VCC = 2.5V
D6 ILI Input leakage current 1 AVIN = .1V to VCC
D7 ILO Output leakage current 1 AVOUT = .1V to VCC
D8 CIN, Pin capacitance 10 pFVCC = 5.0V (Note 1)
COUT (all inputs/outputs) TA = 25C, FCLK = 1 MHz
D9 ICC write Operating current 0.1 3 mAVCC = 5.5V, SCL = 400 kHz
D10 ICC read 0.05 1 mA
D11 ICCS Standby current .01 1 A Industrial
5 A Automotive
SDA = SCL = VCC
WP = VSS
Note 1: This parameter is periodically sampled and not 100% tested.
2: Typical measurements taken at room temperature.
DS21189H-page 2 2003 Microchip Technology Inc.