25AA320A/25LC320A 32K SPI Bus Serial EEPROM Device Selection Table Part Number VCC Range Page Size Temperature Ranges Packages 25AA320A 1.8V-5.5V 32 Byte I MS, P, SN, MNY, ST 25LC320A 2.5V-5.5V 32 Byte I, E MS, P, SN, MNY, ST Features Pin Function Table Maximum Clock 10 MHz Name Function Low-Power CMOS Technology: - Maximum Write Current: 5 mA at 5.5V, CS Chip Select Input 10 MHz SO Serial Data Output - Read Current: 5 mA at 5.5V, 10 MHz WP Write-Protect - Standby Current: 5 A at 5.5V VSS Ground 4096 x 8-bit Organization SI Serial Data Input 32-Byte Page SCK Serial Clock Input Self-Timed Erase and Write Cycles (5 ms maximum) HOLD Hold Input Block Write Protection: VCC Supply Voltage - Protect none, 1/4, 1/2 or all of array Built-in Write Protection: Description - Power-on/off data protection circuitry The Microchip Technology Inc. 25AA320A/25LC320A - Write enable latch (1) (25XX320A ) are 32-Kbit Serial Electrically Erasable - Write-protect pin PROMs. The memory is accessed via a simple Serial Sequential Read Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus High Reliability: separate data in (SI) and data out (SO) lines. Access to - Endurance: >1M erase/write cycles the device is controlled through a Chip Select (CS) - Data retention: > 200 years input. - ESD protection: > 4000V Communication to the device can be paused via the Temperature Ranges Supported: ). While the device is paused, hold pin (HOLD - Industrial (I): -40Cto +85C transitions on its inputs will be ignored, with the - Extended (E): -40C to +125C exception of Chip Select, allowing the host to service RoHS Compliant higher priority interrupts. Automotive AEC-Q100 Qualified Note 1: 25XX320A is used in this document as a Packages generic part number for the 25AA320A, 8-Lead MSOP, 8-Lead PDIP, 8-Lead SOIC, 25LC320A devices. 8-Lead TDFN, 8-Lead TSSOP Package Types (not to scale) TSSOP/MSOP PDIP/SOIC X-Rotated TSSOP TDFN 1 8 CS 1 VCC 1 8 HOLD SCK 8 CS CS 1 8 VCC VCC 2 7 VCC SI 2 7 2 SO SO 7 HOLD HOLD SO 2 7 HOLD 3 6 CS VSS 3 6 WP SCK 3 6 SCK 5 WP 4 SO WP WP 3 6 5 SCK 4 VSS SI 4 5 VSS SI VSS 4 5 SI 2007-2021 Microchip Technology Inc. DS20001828H-page 125AA320A/25LC320A 1.0 ELECTRICAL CHARACTERISTICS () Absolute Maximum Ratings VCC.............................................................................................................................................................................6.5V SS ..........................................................................................................-0.6V to VCC +1.0V All inputs and outputs w.r.t. V Storage temperature ...............................................................................................................................-65C to +150C Ambient temperature under bias.............................................................................................................-65C to +125C 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. TABLE 1-1: DC CHARACTERISTICS A = -40C to +85C VCC = 1.8V to 5.5V Industrial (I): T DC CHARACTERISTICS Extended (E): TA = -40C to +125C VCC = 2.5V to 5.5V Param. Symbol Characteristic Minimum Maximum Units Test Conditions No. D001 VIH1 High-level input voltage 0.7 VCC VCC+1 V D002 VIL1 -0.3 0.3 VCC VVCC 2.7V Low-level input voltage D003 VIL2 -0.3 0.2 VCC VVCC < 2.7V D004 VOL 0.4 VIOL = 2.1 mA Low-level output voltage D005 VOL 0.2 VIOL = 1.0 mA, VCC < 2.5V D006 VOH High-level output voltage VCC -0.5 V IOH = -400 A D007 ILI Input leakage current 1 A CS = VCC, VIN = VSS TO VCC D008 ILO Output leakage current 1 A CS = VCC, VOUT = VSS TO VCC Internal Capacitance TA = +25C, CLK = 1.0 MHz, D009 CINT 7 pF (all inputs and outputs) VCC = 5.0V (Note 1) VCC = 5.5V FCLK = 10.0 MHz 5 mA SO = Open D010 ICC Read CC = 2.5V FCLK = 5.0 MHz V 2.5 mA Operating Current SO = Open 5 mAVCC = 5.5V D011 ICC Write 3 mAVCC = 2.5V CS = VCC = 5.5V, Inputs tied to 5 A VCC or VSS, +125C D012 ICCS Standby Current = VCC = 5.5V, Inputs tied to CS 1 A VCC or VSS, +85C Note 1: This parameter is periodically sampled and not 100% tested. DS20001828H-page 2 2007-2021 Microchip Technology Inc.