24LCS62-I/SN Microchip Technology, 24LCS62-I/SN Datasheet

no-image

24LCS62-I/SN

Manufacturer Part Number
24LCS62-I/SN
Description
IC EEPROM 2KBIT 400KHZ 8SOIC
Manufacturer
Microchip Technology
Datasheet

Specifications of 24LCS62-I/SN

Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
2K (256 x 8)
Speed
100kHz, 400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Request inventory verification / Request inventory verification
Device Selection Table
Features
• Low-power CMOS technology
• Software addressability allows up to 255 devices
• 2-wire serial interface bus, I
• Automatic bus arbitration
• Wakes up to control code 0110
• General purpose output pin can be used to enable
• 100 kHz and 400 kHz compatibility
• Page write buffer for up to 16 bytes
• 10 ms max write cycle time for byte or page write
• 1,000,000 erase/write cycles
• 8-pin PDIP, SOIC or TSSOP packages
• Temperature ranges supported:
Description
The Microchip Technology Inc. 24LCS61/62 is a 1K/2K
bit Serial EEPROM developed for applications that
require many devices on the same bus but do not have
the I/O pins required to address each one individually.
These devices contain an 8 bit address register that is
set upon power-up and allows the connection of up to
255 devices on the same bus. When the process of
assigning ID values to each device is in progress, the
device will automatically handle bus arbitration if more
than one device is operating on the bus. In addition, an
external open drain output pin is available that can be
used to enable other circuitry associated with each
individual
operation with typical standby and active currents of
only 10 A and 1 mA respectively. The device has a
page write capability for up to 16 bytes of data. The
device is available in the standard 8-pin PDIP, SOIC
(150 mil), and TSSOP packages.
I
 2004 Microchip Technology Inc.
2
C is a trademark of Philips Corporation.
24LCS51
24LCS62
- 1 mA active current typical
- 10 A standby current typical at 5.5V
on the same bus
other circuitry
- Industrial (I):
Device
1K/2K Software Addressable I
system.
1K bits
2K bits
Array
Size
Low
2.5V-5.5V
2.5V-5.5V
Voltage
Range
-40°C to +85°C
current
2
C compatible
Software Write
design permits
24LCS61/24LCS62
Entire Array
Protection
Lower Half
Package Types
Block Diagram
Pin Function Table
SOIC
TSSOP
V
PDIP
V
SDA SCL
CC
SS
2
Control
EDS
Logic
C
I/O
Name
SDA
EDS
SCL
V
V
NC
CC
SS
EDS
EDS
EDS
V
Vss
Vss
NC
NC
NC
NC
Obsolete Device
NC
NC
SS
Serial EEPROM
Memory
Control
Logic
1
2
3
4
1
2
3
4
Ground
Serial Data
Serial Clock
+2.5V to 5.5V Power Supply
No Internal Connection
External Device Select Output
1
2
3
4
XDEC
Function
8
7
6
5
8
7
6
5
8
7
6
5
Sense Amp.
R/W Control
HV Generator
DS21226E-page 1
Serial Number
ID Register
Vcc
NC
SCL
SDA
V
NC
SCL
SDA
EEPROM
CC
YDEC
Vcc
NC
SCL
SDA
Array

Related parts for 24LCS62-I/SN

24LCS62-I/SN Summary of contents

Page 1

... A and 1 mA respectively. The device has a page write capability for bytes of data. The device is available in the standard 8-pin PDIP, SOIC (150 mil), and TSSOP packages trademark of Philips Corporation.  2004 Microchip Technology Inc. 24LCS61/24LCS62 2 ™ C Package Types PDIP Software Write Protection ...

Page 2

... ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V .............................................................................................................................................................................7.0V CC All inputs and outputs w.r.t. V ......................................................................................................... -0. Storage temperature ...............................................................................................................................-65°C to +150°C Ambient temperature with power applied ................................................................................................-65°C to +125°C ESD protection on all pins † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...

Page 3

... BUS TIMING DATA T F SCL Tsu:sta T LOW SDA STA SDA OUT  2004 Microchip Technology Inc. 24LCS61/24LCS62 Vcc = +2.5V to 5.5V Industrial (I -40°C to +85° 2.5V - 5.5V Vcc = 4.5V - 5.5V CC STD MODE FAST MODE Min. Max. Min. Max. — 100 — ...

Page 4

... PIN DESCRIPTIONS 2.1 SDA (Serial Data) This is a bidirectional pin used to transfer addresses and data into and data out of the device open drain terminal, therefore the SDA bus requires a pull-up resistor to V (typical 10 k for 100 kHz 400 kHz). ...

Page 5

... Receiver to pull the SDA line low to acknowledge the previous eight bits of data.  2004 Microchip Technology Inc. 24LCS61/24LCS62 The device that acknowledges has to pull down the SDA line during the Acknowledge clock pulse in such a way that the SDA line is stable low during the high period of the acknowledge related clock pulse ...

Page 6

... FUNCTIONAL DESCRIPTION The 24LCS61/62 supports a bidirectional 2-wire bus and data transmission protocol compatible with the I protocol. The device is configured to reside common I C bus with up to 255 total 24LCS61/62 devices on the bus. Each device has a unique serial number assigned to it when delivered from the factory. ...

Page 7

...  2004 Microchip Technology Inc. 24LCS61/24LCS62 The 24LCS61/62 must acknowledge the control byte and the device ID byte, and the master must acknowl- edge each byte of the serial number transmitted by the device. As each bit is clocked out, each device will monitor the bus to detect if another device is also transmitting. If any device is outputting a logic ‘ ...

Page 8

... Clear Address Command The Clear Address command will clear the device ID byte from all devices on the bus and will enable all devices to respond to the Assign Address command. The master must end the command by sending an ACK after 8 don’t care bits have been transmitted, followed by a Stop bit ...

Page 9

... Microchip Technology Inc. 24LCS61/24LCS62 Result if Device Has Already Been Assigned an ID Byte Device will not acknowledge command. Device ID byte will revert back to 00h and will then acknowledge Assign Address commands ...

Page 10

... The Set Write Protection command allows the user to write-protect a portion of the array. For the 24LCS51 this command will write-protect the entire array. For the 24LCS62 this command will protect the lower half of the array. This command is illustrated in Figure 6-3. This is a one time only command and cannot be reversed once the protection fuse has been set ...

Page 11

... FIGURE 6-2: PAGE WRITE S T BUS ACTIVITY CONTROL A MASTER BYTE R T SDA LINE BUS ACTIVITY FIGURE 6-3: SET WRITE PROTECTION COMMAND CONTROL R BYTE  2004 Microchip Technology Inc. 24LCS61/24LCS62 DEVICE ADDRESS DATA BYTE 0 ID BYTE BYTE ADDRESS DEVICE BYTE ID BYTE DATA BYTE ...

Page 12

... 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 command has been issued from the master, the device initiates the internally timed write cycle ...

Page 13

... This address pointer allows the entire memory contents to be serially read during one operation. The internal address pointer will automatically roll over from address 7Fh (24LCS51) or FFh (24LCS62) to address 00h DEVICE CONTROL ...

Page 14

... FIGURE 8-2: RANDOM READ S DEVICE CONTROL BYTE BYTE FIGURE 8-3: SEQUENTIAL READ BUS ACTIVITY ID MASTER BYTE SDA LINE BUS ACTIVITY DS21226E-page 14 S ADDRESS CONTROL T BYTE A BYTE DATA n DATA DATA DATA DEVICE S T BYTE ID BYTE DATA  2004 Microchip Technology Inc. ...

Page 15

... EDS pin will be released by the device at this point.  2004 Microchip Technology Inc. 24LCS61/24LCS62 standard Read or Write commands, the EDS pin will pull low (providing that the OE bit is set high) on the ris- ing clock edge after the ack bit following the ID byte ...

Page 16

... APPENDIX A: REVISION HISTORY Revision D Corrections to Section 1.0, Electrical Characteristics. Revision E Add “Obsolete Device” to document header. DS21226E-page 16  2004 Microchip Technology Inc. ...

Page 17

... Conferences for products, Development Systems, technical information and more • Listing of seminars and events  2004 Microchip Technology Inc. 24LCS61/24LCS62 SYSTEMS INFORMATION AND UPGRADE HOT LINE The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products ...

Page 18

... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: 24LCS61/24LCS62 Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this document easy to follow? If not, why? 4 ...

Page 19

... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.  2004 Microchip Technology Inc. 24LCS61/24LCS62 XXX Pattern C Serial EEPROM 2 ...

Page 20

... NOTES: DS21226E-page 20  2004 Microchip Technology Inc. ...

Page 21

... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 22

... Via Salvatore Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/12/04  2004 Microchip Technology Inc. ...

Related keywords