24LC64-IP Microchip Technology Inc., 24LC64-IP Datasheet

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24LC64-IP

Manufacturer Part Number
24LC64-IP
Description
24LC64-IP64K I 2 C CMOS Serial EEPROM
Manufacturer
Microchip Technology Inc.
Datasheet
DEVICE SELECTION TABLE
FEATURES
• Low power CMOS technology
• 2-wire serial interface bus, I
• 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
• Temperature ranges:
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.
I
*24xx64 is used in this document as a generic part number for the 24AA64/24LC64 devices.
M
2
C is a trademark of Philips Corporation.
100 kHz for Vcc < 2.5V.
100 kHz for E temperature range.
- Maximum write current 3 mA at 5.5V
- Maximum read current 400 A at 5.5V
- Standby current 100 nA typical at 5.5V
packages; 14-pin SOIC package
- Industrial (I):
- Automotive (E)
1998 Microchip Technology Inc.
Number
24AA64
24LC64
Part
1.8-5.5V
2.5-5.5V
Range
Vcc
64K I
-40 C to
-40 C to +125 C
Frequency
Max Clock
400 kHz
400 kHz
2
C compatible
2
C
+85 C
Ranges
Temp
CMOS Serial EEPROM
I, E
I
24AA64/24LC64
PACKAGE TYPE
BLOCK DIAGRAM
SDA
I/O
V
V
CONTROL
PDIP
SOIC
TSSOP
CC
SS
LOGIC
I/O
SCL
A0…A2
V
Vss
A0
A1
A2
SS
A0
A1
A2
Vcc
WP
A0
A1
CONTROL
MEMORY
LOGIC
1
2
3
4
WP
1
2
3
4
1
2
3
4
XDEC
8
7
6
5
8
7
6
5
8
7
6
5
DS21189B-page 1
SCL
SDA
Vss
A2
HV GENERATOR
PAGE LATCHES
R/W CONTROL
Vcc
WP
SCL
SDA
V
WP
SCL
SDA
SENSE AMP
EEPROM
CC
ARRAY
YDEC

Related parts for 24LC64-IP

24LC64-IP Summary of contents

Page 1

... 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 trademark of Philips Corporation. *24xx64 is used in this document as a generic part number for the 24AA64/24LC64 devices. 1998 Microchip Technology Inc. 24AA64/24LC64 ™ C CMOS Serial EEPROM ...

Page 2

... HD STA SDA OUT WP DS21189B-page 2 TABLE 1-1 Name A0,A1,A2 User Configurable Chip Selects V Ground SS SDA Serial Data SCL Serial Clock WP Write Protect Input V +1.8 to 5.5V (24AA64) CC +2.5 to 5.5V (24LC64 +1. 4.5V to 5.5V CC Symbol Min Max Units V 0.7 V — — 0.05 V — HYS ...

Page 3

... This eliminates the need for a TI specification for standard operation. 4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific application, please consult the Total Endurance Model which can be obtained on Microchip’s BBS or website. 1998 Microchip Technology Inc. 24AA64/24LC64 V = +1.8V to 5.5V Tamb = - + ...

Page 4

... PIN DESCRIPTIONS 2.1 A0, A1, A2 Chip Address Inputs The A0,A1,A2 inputs are used by the 24xx64 for multi- ple device operation. The levels on these inputs are compared with the corresponding bits in the slave address. The chip is selected if the compare is true eight devices may be connected to the same bus by using different chip select bit combinations ...

Page 5

... SCL 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. 1998 Microchip Technology Inc. 24AA64/24LC64 (D) (D) ADDRESS OR DATA ALLOWED VALID TO CHANGE Acknowledge Bit ...

Page 6

... DEVICE ADDRESSING A control byte is the first byte received following the start condition from the master device (Figure 5-1). The control byte consists of a four bit control code; for the 24xx64 this is set as 1010 binary for read and write operations. The next three bits of the control byte are the chip select bits (A2, A1, A0) ...

Page 7

... A C BUS ACTIVITY don’t care bit 1998 Microchip Technology Inc. 24AA64/24LC64 6.2 Page Write The write control byte, word address and the first data byte are transmitted to the 24xx64 in the same way byte write. But instead of generating a stop condi- ...

Page 8

... ACKNOWLEDGE POLLING Since the device will not acknowledge during a write cycle, this can be used to determine when the cycle is complete (this feature can be used to maximize bus throughput). Once the stop condition for a write com- mand has been issued from the master, the device ini- tiates the internally timed write cycle ...

Page 9

... SDA LINE BUS ACTIVITY 1998 Microchip Technology Inc. 24AA64/24LC64 8.2 Random Read Random read operations allow the master to access any memory location in a random manner. To perform this type of read operation, first the word address must be set. This is done by sending the word address to the 24xx64 as part of a write operation (R/W bit set to 0) ...

Page 10

... NOTES: DS21189B-page 10 1998 Microchip Technology Inc. ...

Page 11

... SM = Plastic SOIC (208 mil Body, EIAJ standard), 8-lead ST = TSSOP, 8-lead -125 C 2 24AA64 64K bit 1. Serial EEPROM 2 24AA64T 64K bit 1. Serial EEPROM (Tape and Reel) 2 24LC64 64K bit 2. Serial EEPROM 2 24LC64T 64K bit 2. Serial EEPROM (Tape and Reel) DS21189B-page 11 ...

Page 12

... Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies ...

Page 13

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