Rainbow-electronics AT24C64 Manual do Utilizador

1Features• Low-Voltage and Standard-Voltage Operation–2.7(VCC=2.7Vto5.5V)–1.8(VCC=1.8Vto5.5V)• Low-Power Devices (ISB=2 µA at 5.5V) Available• Interna

10AT24C32/640336I–SEEPR–07/02ReadOperationsRead operations are initiated the same way as write operations with the exception that theread/write select

11AT24C32/640336I–SEEPR–07/02Figure 1. Device AddressFigure 2. Byte WriteFigure 3. Page WriteNote: 1. * = DON’TCAREbits2. † =DON’T CARE bits for the 3

12AT24C32/640336I–SEEPR–07/02Figure 4. Current Address ReadFigure 5. Random ReadNote: 1. * = DON’TCAREbitsFigure 6. Sequential Read

13AT24C32/640336I–SEEPR–07/02Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristic

14AT24C32/640336I–SEEPR–07/02Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristic

15AT24C32/640336I–SEEPR–07/02Packaging Information8P3 – PDIP2325 Orchard ParkwaySan Jose, CA 95131TITLEDRAWING NO.RREV. 8P3, 8-lead, 0.300" Wid

16AT24C32/640336I–SEEPR–07/028S1 – JEDEC SOIC 2325 Orchard Parkway San Jose, CA 95131TITLEDRAWING NO.RREV. Note:10/10/018S1, 8-lead (0.150" W

17AT24C32/640336I–SEEPR–07/028S2 – EIAJ SOIC2325 Orchard ParkwaySan Jose, CA 95131TITLEDRAWING NO.RREV. 8S2, 8-lead, 0.209" Body, Plastic Small

18AT24C32/640336I–SEEPR–07/028A2 – TSSOP2325 Orchard ParkwaySan Jose, CA 95131TITLEDRAWING NO.RREV. 5/30/02COMMON DIMENSIONS(Unit of Measure = mm)SY

Printed on recycled paper.© Atmel Corporation 2002.Atmel Corporation makes no warranty for the use of its products, other than those expressly contain

2AT24C32/640336I–SEEPR–07/02Block DiagramAbsolute Maximum Ratings*Operating Temperature... -55°Cto+125°C*NOTICE: Stress

3AT24C32/640336I–SEEPR–07/02Pin Description SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into eachEEPROM device and negative

4AT24C32/640336I–SEEPR–07/02Note: 1. This parameter is characterized and is not 100% tested.Note: 1. VILmin and VIHmax are reference only and are not

5AT24C32/640336I–SEEPR–07/02Note: 1. This parameter is characterized and is not 100% tested.AC CharacteristicsApplicable over recommended operating ra

6AT24C32/640336I–SEEPR–07/02Device Operation CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an exter-nal device. Data on the SDA

7AT24C32/640336I–SEEPR–07/02Bus TimingSCL: Serial Clock, SDA: Serial Data I/OWrite Cycle TimingSCL: Serial Clock, SDA: Serial Data I/ONote: 1. The wri

8AT24C32/640336I–SEEPR–07/02Data ValidityStart and Stop DefinitionOutput Acknowledge

9AT24C32/640336I–SEEPR–07/02Device Addressing The 32K/64K EEPROM requires an 8-bit device address word following a start conditiontoenablethechipforar