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MicrochipTechnology - 64K 2.5V I2C Smart Serial EEPROM

Numéro de référence 24LC65
Description 64K 2.5V I2C Smart Serial EEPROM
Fabricant MicrochipTechnology 
Logo MicrochipTechnology 





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24LC65 fiche technique
24LC65
64K 2.5V I2CSmart SerialEEPROM
FEATURES
• Voltage operating range: 2.5V 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 I2C
compatible
• 8 byte page, or byte modes available
• 2 ms typical write cycle time, byte or page
• 64-byte input cache for fast write loads
• Up to 8 devices may be connected to the same
bus for up to 512K bits total memory
• Including 100 kHz (2.5V) and 400 kHz (5.0V)
compatibility
• Programmable block security options
• Programmable endurance options
• Schmitt trigger, filtered 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
- Industrial (I)
-40°C to +85°C
DESCRIPTION
The Microchip Technology Inc. 24LC65 is a “smart” 8K
x 8 Serial Electrically Erasable PROM. This device
has been developed for advanced, low power applica-
tions such as personal communications, and provides
the systems designer with flexibility through the use of
many new user-programmable features. The 24LC65
offers a relocatable 4K bit block of ultra-high-endurance
memory for data that changes frequently. The remain-
der of the array, or 60K bits, is rated at 1,000,000
ERASE/WRITE (E/W) cycles guaranteed. The 24LC65
features an input cache for fast write loads with a
capacity of eight pages, or 64 bytes. This device also
features programmable security options for E/W protec-
tion of critical data and/or code of up to fifteen 4K
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
A1
A2
VSS
1
2
3
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
Cache
YDEC
Sense AMP
R/W Control
blocks. Functional address lines allow the connection of
up to eight 24LC65's on the same bus for up to 512K
bits contiguous EEPROM memory. Advanced CMOS
technology makes this device ideal for low-power non-
volatile code and data applications. The 24LC65 is
available in the standard 8-pin plastic DIP and 8-pin
surface mount SOIC package.
© 1996 Microchip Technology Inc.
DS21073E-page 1
This document was created with FrameMaker 4 0 4

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