Rainbow-electronics AT24C16A User Manual

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1
Features
Write Protect Pin for Hardware Data Protection
Utilizes Different Array Protection Compared to the AT24C02/04/08/16
Low-voltage and Standard-voltage Operation
2.7 (V
CC
= 2.7V to 5.5V)
1.8 (V
CC
= 1.8V to 5.5V)
Internally Organized 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K)
2-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Clock Rate for AT24C02A, 04A and 08A
100 kHz (1.8V) and 400 kHz (2.5V, 2.7V and 5V) Clock Rate for AT24C16A
8-byte Page (2K), 16-byte Page (4K, 8K, 16K) Write Modes
Partial Page Writes are Allowed
Self-timed Write Cycle (10 ms max)
High Reliability
Endurance: One Million Write Cycles
Data Retention: 100 Years
Automotive Grade and Extended Temperature Devices Available
8-lead JEDEC SOIC, 8-pin PDIP, and 8-lead TSSOP Packages
Description
The AT24C02A/04A/08A/16A provides 2048/4096/8192/16384 bits of serial electri-
cally erasable and programmable read only memory (EEPROM) organized as
256/512/1024/2048 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low power and low voltage operation are
essential. The AT24C02A/04A/08A/16A is available in space saving 8-pin PDIP, 8-lead
JEDEC SOIC, and 8-lead TSSOP (AT24C02A/04A) packages and is accessed via a
2-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V)
and 1.8V (1.8V to 5.5V) versions.
2-wire Serial
EEPROM
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
16K (2048 x 8)
AT24C02A
AT24C04A
AT24C08A
AT24C16A
Rev. 0976D–12/01
Pin Configurations
Pin Name Function
A0 - A2 Address Inputs
SDA Serial Data
SCL Serial Clock Input
WP Write Protect
NC No-connect
8-pin PDIP
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
8-lead SOIC
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
8-lead TSSOP
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
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Summary of Contents

Page 1 - Pin Configurations

1Features• Write Protect Pin for Hardware Data Protection – Utilizes Different Array Protection Compared to the AT24C02/04/08/16• Low-voltage and Stan

Page 2

10AT24C02A/04A/08A/16A0976D–12/01Read Operations Read operations are initiated the same way as write operations with the exception thatthe read/write

Page 3

11AT24C02A/04A/08A/16A0976D–12/01Figure 2. Byte WriteFigure 3. Page WriteFigure 4. Current Address ReadSTARTMSBMSBLSBSTOPWRITESDA LINEDEVICEADDRESS

Page 4

12AT24C02A/04A/08A/16A0976D–12/01Figure 5. Random ReadFigure 6. Sequential ReadSTARTSTARTMSBSTOPWRITEREADSDA LINEDEVICEADDRESSDUMMY WRITEWORDADDRESS

Page 5

13AT24C02A/04A/08A/16A0976D–12/01AT24C02A Ordering InformationtWR (max)(ms)ICC (max)(µA)ISB (max)(µA)fMAX(kHz) Ordering Code Package Operation Range10

Page 6

14AT24C02A/04A/08A/16A0976D–12/01AT24C04A Ordering InformationtWR (max)(ms)ICC (max)(µA)ISB (max)(µA)fMAX(kHz) Ordering Code Package Operation Range10

Page 7

15AT24C02A/04A/08A/16A0976D–12/01AT24C08A Ordering InformationtWR (max)(ms)ICC (max)(µA)ISB (max)(µA)fMAX(kHz) Ordering Code Package Operation Range10

Page 8

16AT24C02A/04A/08A/16A0976D–12/01AT24C16A Ordering InformationtWR (max)(ms)ICC (max)(µA)ISB (max)(µA)fMAX(kHz) Ordering Code Package Operation Range10

Page 9

17AT24C02A/04A/08A/16A0976D–12/01Packaging Information8P3 – PDIP 2325 Orchard Parkway San Jose, CA 95131TITLEDRAWING NO.RREV. 8P3, 8-lead (0.300&q

Page 10 - AT24C02A/04A/08A/16A

18AT24C02A/04A/08A/16A0976D–12/018S1 – JEDEC SOIC 1150 E. Cheyenne Mtn. Blvd.Colorado Springs, CO 80906TITLEDRAWING NO.RREV. Note:10/10/018S1, 8-lea

Page 11

19AT24C02A/04A/08A/16A0976D–12/018T– TSSOP1150 E. Cheyenne Mtn. Blvd.Colorado Springs, CO 80906TITLEDRAWING NO.RREV. 10/26/01COMMON DIMENSIONS(Unit

Page 12

2AT24C02A/04A/08A/16A0976D–12/01Block DiagramPin DescriptionSERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into eachEEPROM devi

Page 13

© Atmel Corporation 2001.Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standa

Page 14

3AT24C02A/04A/08A/16A0976D–12/01The AT24C08A only uses the A2 input for hardwire addressing and a total of two 8Kdevices may be addressed on a single

Page 15

4AT24C02A/04A/08A/16A0976D–12/01Note: 1. VIL min and VIH max are reference only and are not tested.DC CharacteristicsApplicable over recommended opera

Page 16

5AT24C02A/04A/08A/16A0976D–12/01Notes: 1. This parameter is characterized and is not 100% tested (TA = 25°C).2. This parameter is characterized and is

Page 17

6AT24C02A/04A/08A/16A0976D–12/01Device Operation CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an exter-nal device. Data on the

Page 18

7AT24C02A/04A/08A/16A0976D–12/01Bus Timing (SCL: Serial Clock, SDA: Serial Data I/O)Write Cycle Timing (SCL: Serial Clock, SDA: Serial Data I/O)Note:

Page 19

8AT24C02A/04A/08A/16A0976D–12/01Data ValidityStart and Stop DefinitionOutput Acknowledge

Page 20 - 0976D–12/01/0M

9AT24C02A/04A/08A/16A0976D–12/01Device Addressing The 2K, 4K and 8K EEPROM devices all require an 8 bit device address word followinga start condition

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