25AA160A/B, 25LC160A/B 16K SPI Bus Serial EEPROM Device Selection Table Part Number VCC Range Page Size Temp. Ranges Packages 25LC160A 2.5-5.5V 16 Byte I,E P, SN, ST, MS 25AA160A 1.8-5.5V 16 Byte I P, SN, ST, MS 25LC160B 2.5-5.5V 32 Byte I,E P, SN, ST, MS 25AA160B 1.8-5.5V 32 Byte I P, SN, ST, MS Features: Description: Max. Clock 10 MHz The Microchip Technology Inc. 25AA160A/B, * 25LC160A/B (25XX160A/B) are 16 Kbit Serial Low-Power CMOS Technology Electrically Erasable PROMs. The memory is accessed 2048 x 8-bit Organization via a simple Serial Peripheral Interface (SPI) 16-Byte Page (A version devices) compatible serial bus. The bus signals required are a 32-Byte Page (B version devices) clock input (SCK) plus separate data in (SI) and data Write Cycle Time: 5 ms max. out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Self-Timed Erase and Write Cycles Block Write Protection: Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transi- - Protect none, 1/4, 1/2 or all of array tions on its inputs will be ignored, with the exception of Built-In Write Protection: Chip Select, allowing the host to service higher priority - Power-on/off data protection circuitry interrupts. - Write enable latch The 25XX160A/B is available in standard Pb-free pack- - Write-protect pin ages including 8-lead PDIP and SOIC, and advanced Sequential Read packaging including 8-lead MSOP, and 8-lead TSSOP. High Reliability: - Endurance: 1,000,000 erase/write cycles Package Types (not to scale) - Data retention: > 200 years TSSOP/MSOP PDIP/SOIC - ESD protection: > 4000V (ST, MS) (P, SN) Temperature Ranges Supported: 1 8 VCC - Industrial (I): -40Cto +85C CS CS 1 8 VCC 2 7 SO HOLD - Automotive (E): -40C to +125C SO 2 7 HOLD 6 3 WP SCK 4 5 VSS SI WP 3 6 SCK Pb-Free and RoHS Compliant VSS 4 5 SI Pin Function Table Name Function CS Chip Select Input SO Serial Data Output WP Write-Protect VSS Ground SI Serial Data Input SCK Serial Clock Input HOLD Hold Input *25XX160A/B is used in this document as a generic part VCC Supply Voltage number for the 25AA160A/B, 25LC160A/B devices. 2007 Microchip Technology Inc. DS21807D-page 125XX160A/B 1.0 ELECTRICAL CHARACTERISTICS () Absolute Maximum Ratings VCC.............................................................................................................................................................................7.0V All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V Storage temperature .................................................................................................................................-65C to 150C Ambient temperature under bias...............................................................................................................-40C 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 Industrial (I): TAMB = -40C to +85C VCC = 1.8V to 5.5V DC CHARACTERISTICS Automotive (E): TAMB = -40C to +125C VCC = 2.5V to 5.5V Param. Sym. Characteristic Min. Max. Units Test Conditions No. D001 VIH1 High-level input 2.0 VCC +1 V VCC 2.7V (Note) voltage D002 VIH2 0.7 VCC VCC +1 V VCC < 2.7V (Note) D003 VIL1 Low-level input -0.3 0.8 V VCC 2.7V (Note) voltage D004 VIL2 -0.3 0.2 VCC VVCC < 2.7V (Note) D005 VOL Low-level output 0.4 VIOL = 2.1 mA voltage D006 VOL 0.2 VIOL = 1.0 mA, VCC < 2.5V D007 VOH High-level output VCC -0.5 V IOH = -400 A voltage D008 ILI Input leakage current 1 ACS = VCC, VIN = VSS TO VCC D009 ILO Output leakage 1 ACS = VCC, VOUT = VSS TO VCC current D010 CINT Internal Capacitance AMB = 25C, CLK = 1.0 MHz, 7 pFT (all inputs and VCC = 5.0V (Note) outputs) D011 ICC Read 6 mA VCC = 5.5V FCLK = 10.0 MHz SO = Open Operating Current 2.5 mA VCC = 2.5V FCLK = 5.0 MHz SO = Open D012 ICC Write 3 mA VCC = 5.5V D013 ICCS 5 A CS = VCC = 5.5V, Inputs tied to VCC or Standby Current VSS, TAMB = -40C TO +125C 1 A CS = VCC = 2.5V, Inputs tied to VCC or VSS, TAMB = -40C TO +85C Note: This parameter is periodically sampled and not 100% tested. DS21807D-page 2 2007 Microchip Technology Inc.