Homedatasheet25AA020A

25AA020A Datasheet

2K SPI Bus Serial EEPROM <br> The Microchip Technology Inc. 25XX020A* is a 2 Kbit <br> Serial Electrically Erasable Programmable Read-Only <br> Memory (EEPROM). The memory is accessed via a <br> simpl
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Part Number 25AA020A 25LC020A VCC Range 1.8-5.5V 2.5-5.5V Page Size 16 Bytes 16 Bytes Temp. Ranges I, E Packages P, MS, SN, ST, MC, OT P, MS, SN, ST, MC, OT

10 MHz max. clock frequency Low-power CMOS technology: - Max. Write Current: 5.5V, 10 MHz - Read Current: 5.5V, 10 MHz - Standby Current: x 8-bit organization Write Page mode (up to 16 bytes) Sequential Read Self-timed Erase and Write cycles (5 ms max.) Block Write protection: - Protect none, 1/2 or all of array Built-in Write protection: - Power-on/off data protection circuitry - Write enable latch - Write-protect pin High reliability: - Endurance: 1,000,000 Erase/Write cycles - Data retention: > 200 years - ESD protection: > 4000V Temperature ranges supported: - Industrial (I): +85�C - Automotive (E): to +125�C Pb-Free packages available

The Microchip Technology Inc. a 2 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). The memory is accessed via a simple Serial Peripheral InterfaceTM (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. The 25XX020A is available in standard packages including 8-lead PDIP and SOIC, and advanced packages including 8-lead MSOP, 8-lead TSSOP and rotated TSSOP, 8-lead 2x3 DFN, and 6-lead SOT-23.

Name SO WP VSS SI SCK HOLD VCC Function Chip Select Input Serial Data Output Write-Protect Ground Serial Data Input Serial Clock Input Hold Input Supply Voltage

*25XX020A is used in this document as a generic part number for the 25AA020A and the 25LC020A.

VCC.............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS......................................................................................................... -0.6V to VCC +1.0V Storage to 150�C Ambient temperature under to 125�C ESD protection on all pins..........................................................................................................................................4 kV NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an extended period of time may affect device reliability.

Industrial (I): Automotive (E): Min. 0.7 VCC -0.3 VCC to +125�C Max. VCC +1 0.3 VCC 0.2 VCC Units pF VCC 2.7V (Note 1) VCC < 2.7V (Note 1) IOL 2.1 mA IOL = 1.0 mA, VCC < 2.5V IOH CS = VCC, VIN = VSS TO VCC CS = VCC, VOUT = VSS TO VCC = 25�C, CLK = 1.0 MHz, VCC = 5.0V (Note 1) VCC = 5.5V; FCLK = 10.0 MHz; SO = Open VCC = 2.5V; FCLK = 5.0 MHz; SO = Open VCC = 5.5V VCC CS = VCC = 5.5V, Inputs tied to VCC or VSS, CS = VCC = 2.5V, Inputs tied to VCC or VSS, = +85�C VCC to 5.5V VCC to 5.5V Test Conditions

DC CHARACTERISTICS Param. No. D008 D009 Sym. VIL1 VIL2 VOL VOH ILI ILO CINT Characteristic High-level Input Voltage Low-level Input Voltage Low-level Output Voltage High-level Output Voltage Input Leakage Current Output Leakage Current Internal Capacitance (all inputs and outputs)

Industrial (I): Automotive (E): Min. to +125�C Units MHz ns VCC to 5.5V VCC to 5.5V Test Conditions 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC 2.5V 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC 2.5V 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC 2.5V 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC 2.5V 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC < 2.5V (Note 1) (Note 1) 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC 2.5V 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC 2.5V 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC < 2.5V (Note 1) 4.5V VCC < 5.5V (Note 1) 2.5V VCC < 4.5V (Note 1) 1.8V VCC < 2.5V (Note 1) 4.5V VCC 5.5V 2.5V VCC 4.5V 1.8V VCC < 2.5V

CLK Rise Time CLK Fall Time Clock High Time
Clock Delay Time Clock Enable Time Output Valid from Clock Low Output Hold Time Output Disable Time

Note 1: This parameter is periodically sampled and not 100% tested. 2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total EnduranceTM Model which can be obtained from our web site: www.Microchip.com. 3: TWC begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle is complete.


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