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PDF 24C64 Data sheet ( Hoja de datos )
| Número de pieza | 24C64 | |
| Descripción | 64K SPI Bus Serial EEPROM | |
| Fabricantes | MicrochipTechnology | |
| Logotipo |  |
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M
24AA64/24LC64
64K I2C™CMOS Serial EEPROM
DEVICE SELECTION TABLE
Part
Number
Vcc
Range
Max Clock
Frequency
24AA64 1.8-5.5V 400 kHz†
24LC64 2.5-5.5V 400 kHz‡
†100 kHz for Vcc < 2.5V.
‡100 kHz for E temperature range.
Temp
Ranges
I
I, E
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
• 2-wire serial interface bus, I2C compatible
• Cascadable for up to eight devices
• Self-timed ERASE/WRITE cycle
• 32-byte page or byte write modes available
• 5 ms max write cycle time
• 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 guaranteed
• Electrostatic discharge protection > 4000V
• Data retention > 200 years
• 8-pin PDIP, SOIC (150 and 208 mil) and TSSOP
packages; 14-pin SOIC package
• Temperature ranges:
- Industrial (I):
-40°C to +85°C
- Automotive (E)
-40°C to +125°C
DESCRIPTION
The Microchip Technology Inc. 24AA64/24LC64
(24xx64*) is a 8K x 8 (64K bit) Serial Electrically Eras-
able PROM capable of operation across a broad volt-
age 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 capability of up to 32 bytes of data.
This device is capable of both random and sequential
reads up to the 64K boundary. Functional address lines
allow up to eight devices on the same bus, for up to 512
Kbits address space. This device is available in the
standard 8-pin plastic DIP, 8-pin SOIC (150 and
208 mil), and 8-pin TSSOP.
PACKAGE TYPE
PDIP
A0 1
A1 2
A2 3
Vss 4
8 Vcc
7 WP
6 SCL
5 SDA
SOIC
A0
A1
A2
VSS
1
2
3
4
TSSOP
WP 1
Vcc 2
A0 3
A1 4
BLOCK DIAGRAM
A0…A2 WP
8
VCC
7 WP
6 SCL
5 SDA
8 SCL
7 SDA
6 Vss
5 A2
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
I/O
SCL
SDA
VCC
VSS
XDEC
EEPROM
ARRAY
PAGE LATCHES
YDEC
SENSE AMP
R/W CONTROL
I2C is a trademark of Philips Corporation.
*24xx64 is used in this document as a generic part number for the 24AA64/24LC64 devices.
© 1998 Microchip Technology Inc.
DS21189B-page 1
1 page  
24AA64/24LC64
FIGURE 4-1: DATA TRANSFER SEQUENCE ON THE SERIAL BUS
(A) (B) (D) (D)
SCL
(C) (A)
SDA
START
CONDITION
ADDRESS OR
DATA
ACKNOWLEDGE ALLOWED
VALID
TO CHANGE
STOP
CONDITION
FIGURE 4-2: ACKNOWLEDGE TIMING
Acknowledge
Bit
SCL 1 2 3 4 5 6 7 8 9 1 2 3
SDA
Data from transmitter
Transmitter must release the SDA line at this point
allowing the Receiver to pull the SDA line low to
acknowledge the previous eight bits of data.
Data from transmitter
Receiver must release the SDA line at this point
so the Transmitter can continue sending data.
© 1998 Microchip Technology Inc.
DS21189B-page 5
5 Page 
24AA64/24LC64
24xx64 PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
24xx64 — /P
Package:
P = Plastic DIP (300 mil Body), 8-lead
SN = Plastic SOIC (150 mil Body, EIAJ standard), 8-lead
SM = Plastic SOIC (208 mil Body, EIAJ standard), 8-lead
ST = TSSOP, 8-lead
Temperature
Range:
I = -40°C to +85°C
E = -40°C to -125°C
Device:
24AA64
24AA64T
24LC64
24LC64T
64K bit 1.8V I2C Serial EEPROM
64K bit 1.8V I2C Serial EEPROM (Tape and Reel)
64K bit 2.5V I2C Serial EEPROM
64K bit 2.5V I2C Serial EEPROM (Tape and Reel)
Sales and Support
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom-
mended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1. Your local Microchip sales office (see last page).
2. The Microchip Corporate Literature Center U.S. FAX: (602) 786-7277.
3. The Microchip’s Bulletin Board, via your local CompuServe number (CompuServe membership NOT required).
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
© 1998 Microchip Technology Inc.
DS21189B-page 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet 24C64.PDF ] | |
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