AT24C08D I2C-Compatible 2-Wire Serial EEPROM 8-Kbit …

1 AT24C08D I C- compatible ( 2-Wire ) Serial EEPROM 8-Kbit (1,024 x 8)Features Low-Voltage Operation: Vcc = to Internally Organized as 1,024 x 8 (8K) Industrial Temperature Range -40 C to +85 C I2C-Compatible ( 2-Wire ) Serial Interface: 100 kHz Standard mode, to 400 kHz Fast mode, to 1 MHz Fast Mode Plus (FM+), to Schmitt Triggers, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol Write-Protect Pin for Full Array Hardware Data Protection (except WLCSP) Ultra Low Active Current (1 mA maximum) and Standby Current ( A maximum) 16-Byte Page Write Mode: Partial page writes allowed Random and Sequential Read Modes Self-Timed Write Cycle within 5 ms Maximum ESD Protection > 4,000V High Reliability: Endurance: 1,000,000 write cycles Data retention: 100 years Green Package Options (Lead-free/Halide-free/RoHS compliant) Die Sale Options: Wafer Form and Bumped WafersPackages 8-Lead PDIP(1), 8-Lead SOIC, 5-Lead SOT23, 8-Lead TSSOP, 8-Pad UDFN, 8-Ball VFBGA and 4-Ball WLCSPNote: 1.

2 Contact Microchip Sales for the availability of this package. 2018 Microchip Technology Inc. DatasheetDS20006022A-page 1 Table of Types (not to scale).. Address Input (A2).. Data (SDA).. Clock (SCL).. (WP).. Power Configuration Using 2-Wire Serial Maximum and AC Operating Operation and and Data Transition and Stop and Cycle Address AT24C08D 2018 Microchip Technology Inc. DatasheetDS20006022A-page Default Condition from Marking Microchip Web 41 Customer Change Notification 41 Product Identification Devices Code Protection 43 Quality Management System Certified by Sales and AT24C08D 2018 Microchip Technology Inc. DatasheetDS20006022A-page 31. Package Types (not to scale)NCNCA2 GNDVccWPSCLSDA8-pad UDFN(Top View)8-lead PDIP/SOIC/TSSOP(Top View)NC12348765 NCA2 GNDVccWPSCLSDA12348765 NCNCA2 GNDVccWPSCLSDA8-ball VFBGA(Top View)VccSCL4-ball WLCSP(1)(Top View)GNDSDA5-lead SOT23(2) (Top View)SCL12354 GNDSDAWPVcc12345678A1A2B1B2 Note: 1.

3 Since the WLCSP has no WP pin, the write protection feature is not offered on the WLCSP. Referto Device Addressing for details about addressing the WLCSP version of the Refer to Device Addressing for details about addressing the SOT23 version of the device. AT24C08 DPackage Types (not to scale) 2018 Microchip Technology Inc. DatasheetDS20006022A-page 42. Pin DescriptionsThe descriptions of the pins are listed in Table 2-1. Pin Function TableName8-LeadPDIP8-LeadSOIC8-LeadTSSOP 5-LeadSOT238-PadUDFN(1)8 BallVFBGA4-BallWLCSPF unctionNC111 11 No ConnectNC222 22 No ConnectA2(2)333 33 Device AddressInputGND444244A2 GroundSDA555355B2 Serial DataSCL666166B1 Serial ClockWP(2)777577 Write-ProtectVCC888488A1 Device PowerSupplyNote: 1. The exposed pad on the this package can be connected to GND or left If the A2 or WP pins are not driven, they are internally pulled down to GND.

4 In order to operate in awide variety of application environments, the pull-down mechanism is intentionally designed to besomewhat strong. Once these pins are biased above the CMOS input buffer s trippoint (~ x VCC), the pull down mechanism disengages. Microchip recommends connecting thesepins to a known state whenever Device Address Input (A2)The A2 pin is a device address input that is hard-wired (directly to GND or to VCC) for compatibility withother AT24C devices. When the pin is hard-wired, as many as two devices may be addressed on a singlebus system. A device is selected when a corresponding hardware and software match is true. If the pin isleft floating, the A2 pin will be internally pulled down to GND. However, due to capacitive coupling thatmay appear in customer applications, Microchip recommends always connecting the address pin to aknown state. When using a pull-up resistor, Microchip recommends using 10 k or GroundThe ground reference for the power supply.

5 GND should be connected to the system Serial Data (SDA)The SDA pin is an open-drain bidirectional input/output pin used to serially transfer data to and from thedevice. The SDA pin must be pulled-high using an external pull-up resistor (not to exceed 10 k in value)and may be wire -ORed with any number of other open-drain or open-collector pins from other devices onthe same bus. AT24C08 DPin Descriptions 2018 Microchip Technology Inc. DatasheetDS20006022A-page Serial Clock (SCL)The SCL pin is used to provide a clock to the device and to control the flow of data to and from thedevice. Command and input data present on the SDA pin is always latched in on the rising edge of SCL,while output data on the SDA pin is clocked out on the falling edge of SCL. The SCL pin must either beforced high when the Serial bus is idle or pulled high using an external pull-up Write-Protect (WP)The write-protect input, when connected to GND, allows normal write operations.

6 When the WP pin isconnected directly to VCC, all write operations to the protected memory are the pin is left floating, the WP pin will be internally pulled down to GND. However, due to capacitivecoupling that may appear in customer applications, Microchip recommends always connecting the WPpin to a known state. When using a pull up resistor, Microchip recommends using 10 k or 2-2. Write-ProtectWP Pin StatusPart of the Array ProtectedAt VCCFull ArrayAt GNDN ormal Write Device Power SupplyThe VCC pin is used to supply the source voltage to the device. Operations at invalid VCC voltages mayproduce spurious results and should not be attempted. AT24C08 DPin Descriptions 2018 Microchip Technology Inc. DatasheetDS20006022A-page 63. DescriptionThe AT24C08D provides 8,192 bits of Serial Electrically Erasable and Programmable Read-Only Memory( EEPROM ) organized as 1,024 words of 8 bits each.

7 This device is optimized for use in many industrialand commercial applications where low-power and low-voltage operations are essential. The device isavailable in space-saving 8-lead SOIC, 8-lead TSSOP, 8-pad UDFN, 8-lead PDIP(1), 5-lead SOT23, 8-ballVFBGA and 4-ball WLCSP packages. All packages operate from to : 1. Contact Microchip Sales for the availability of this System Configuration Using 2-Wire Serial EEPROMsI2C Bus Master:MicrocontrollerVCCGNDSCLSDAWPRPUP (max) = tR(max) x CLRPUP(min) = VCC - VOL(max)IOLS lave 0AT24 CXXXVCCWPSDASCLNCNCA2 GNDS lave 1AT24 CXXXVCCWPSDASCLNCNCA2 GNDVCC AT24C08 DDescription 2018 Microchip Technology Inc. DatasheetDS20006022A-page Block Diagram1 pageStartStopDetectorGNDA2 MemorySystem ControlModuleHigh-VoltageGeneration CircuitData & ACK Input/Output ControlAddress Registerand CounterWrite Protection ControlDOUTDINH ardwareAddressComparatorVCCWPSCLSDAPORG eneratorEEPROM ArrayColumn DecoderRow DecoderData Register AT24C08 DDescription 2018 Microchip Technology Inc.

8 DatasheetDS20006022A-page 84. Electrical Absolute Maximum RatingsTemperature under bias-55 C to +125 CStorage temperature-65 C to +150 on any pin with respect to to + output mAESD protection>4 kVNote: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage tothe device. This is a stress rating only and functional operation of the device at these or any otherconditions above those indicated in the operation listings of this specification is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device DC and AC Operating RangeTable 4-1. DC and AC Operating RangeAT24C08 DOperating Temperature (Case)Industrial Temperature Range-40 C to +85 CVCC Power SupplyLow Voltage to DC CharacteristicsTable 4-2. DC CharacteristicsParameterSymbolMinimumTyp ical(1)MaximumUnitsTest = (2), Read at400 kHz = , Read at 1 MHzSupplyCurrentICC2 = , Write at 1 MHzStandbyCurrentISB AVCC = (2), VIN = VCC orGND AVCC = , VIN = VCC orGND AT24C08 DElectrical Characteristics 2018 Microchip Technology Inc.

9 DatasheetDS20006022A-page 9 ParameterSymbolMinimumTypical(1)MaximumU nitsTest ConditionsInputLeakageCurrentILI AVIN = VCC or GNDO utputLeakageCurrentILO AVOUT = VCC or GNDI nput VCC x 2 Input HighLevelVIHVCC x VCC + 2 Output LowLevelVOL1 = , IOL = mAOutput LowLevelVOL2 = , IOL = mANote: 1. Typical values characterized at TA = +25 C unless otherwise This parameter is characterized but is not 100% tested in AC CharacteristicsTable 4-3. AC Characteristics(1)ParameterSymbolStandar d ModeFast ModeFast Mode PlusUnitsVCC = to = to = to ,SCLfSCL 100 400 1000kHzClock PulseWidth LowtLOW4,700 1,300 500 nsClock PulseWidth HightHIGH4,000 600 400 nsInput FilterSpikeSuppression(SCL,SDA)(2)tI 100 100 100nsClock Low toData Out ValidtAA 4,500 900 450nsBus Free Timebetween Stopand Start(2)tBUF4,700 1,300 500 ns AT24C08 DElectrical Characteristics 2018 Microchip Technology Inc.

10 DatasheetDS20006022A-page 10 ParameterSymbolStandard ModeFast ModeFast Mode PlusUnitsVCC = to = to = to ,000 600 250 nsStart ,700 600 250 nsData In 0 0 nsData In 100 100 nsInputs RiseTime(2)tR 1,000 300 100nsInputs FallTime(2)tF 300 300 100nsStop ,700 600 250 nsWrite-ProtectSetup ,000 600 100 nsWrite-ProtectHold ,000 600 400 nsData Out HoldTimetDH100 50 50 nsWrite CycleTimetWR 5 5 5msNote: 1. AC measurement conditions: CL: 100 pF RPUP (SDA bus line pull-up resistor to VCC): k (1000 kHz), 4 k (400 kHz),10 k (100 kHz) Input pulse voltages: x VCC to x VCC Input rise and fall times: 50 ns Input and output timing reference voltages: x VCC2. These parameters are determined through product characterization and are not 100% tested inproduction. AT24C08 DElectrical Characteristics 2018 Microchip Technology Inc. DatasheetDS20006022A-page 11 Figure 4-1.