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24AA65 Datasheet, PDF (1/12 Pages) Microchip Technology – 64K 1.8V I 2 C O Smart Serial O EEPROM | |||
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24AA65
64K 1.8V I2C⢠Smart Serial⢠EEPROM
FEATURES
⢠Voltage operating range: 1.8V to 6.0V
- Peak write current 3 mA at 6.0V
- Maximum read current 150 µA at 6.0V
- Standby current 1 µA typical
⢠Industry standard two wire bus protocol I2Câ¢
compatible
⢠8 byte page, or byte modes available
⢠2 ms typical write cycle time, byte or page
⢠64-byte line input cache for fast write loads
⢠Up to 8 devices may be connected to the same
bus for up to 512K bits total memory
⢠100 kHz (1.8V) and 400 kHz (5.0V) compatibility
⢠Programmable block security options
⢠Programmable endurance options
⢠Schmitt trigger, ï¬ltered inputs for noise suppres-
sion
⢠Output slope control to eliminate ground bounce
⢠Self-timed ERASE and WRITE cycles
⢠Power on/off data protection circuitry
⢠Endurance:
- 10,000,000 E/W cycles guaranteed for a High
Endurance Block
- 1,000,000 E/W cycles guaranteed for a Stan-
dard Endurance Block
⢠Electrostatic discharge protection > 4000V
⢠Data retention > 200 years
⢠8-pin PDIP/SOIC packages
⢠Temperature ranges
- Commercial (C):
0°C to +70°C
DESCRIPTION
The Microchip Technology Inc. 24AA65 is a âsmartâ 8K x
8 Serial Electrically Erasable PROM. This device has
been developed for advanced, low power applications
such as personal communications, and provides the
systems designer with ï¬exibility through the use of many
new user-programmable features. It is capable of opera-
tion down to 1.8V, the end-of-life voltage for 2 âAAâ bat-
tery cells for most popular battery technologies.The
24AA65 offers a relocatable 4K bit block of ultra-high-
endurance memory for data that changes frequently. The
remainder of the array, or 60K bits, is rated at 1,000,000
ERASE/WRITE (E/W) cycles guaranteed. The 24AA65
features an input cache for fast write loads with a capac-
ity of eight pages, or 64 bytes. This device also features
programmable security options for E/W protection of crit-
ical data and/or code of up to ï¬fteen 4K blocks. Func-
tional address lines allow the connection of up to eight
I2C is a trademark of Philips Corporation.
Smart Serial is a trademark of Microchip Technology Inc.
PACKAGE TYPES
PDIP
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 NC
6 SCL
5 SDA
SOIC
A0
1
A1
2
A2
3
VSS
4
8
VCC
7
NC
6 SCL
5 SDA
BLOCK DIAGRAM
A0..A2
HV Generator
I/O
Control
Logic
I/O SCL
SDA
Vcc
Vss
Memory
Control
Logic
XDEC
EEPROM ARRAY
Page Latches
Buffer
YDEC
Sense AMP
R/W Control
24LC65's on the same bus for up to 512K bits contigu-
ous EEPROM memory. Advanced CMOS technology
makes this device ideal for low-power non-volatile code
and data applications. The 24AA65 is available in the
standard 8-pin plastic DIP and 8-pin surface mount
SOIC package.
© 1996 Microchip Technology Inc.
DS21056F-page 1
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