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AS27C256-30ECAXT Datasheet(PDF) 6 Page - Austin Semiconductor |
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AS27C256-30ECAXT Datasheet(HTML) 6 Page - Austin Semiconductor |
6 / 13 page UVEPROM UVEPROM UVEPROM UVEPROM UVEPROM AS27C256 AS27C256 Rev. 2.0 7/06 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 6 Austin Semiconductor, Inc. *Stresses greater than 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 these or any other conditions above those indicated in the operation section of this specification is not implied. Expo- sure to absolute maximum rating conditions for extended peri- ods may affect reliability. ** All voltage values are with respect to GND. ABSOLUTE MAXIMUM RATINGS* Supply Voltage Range, V CC **...........................-0.6V to +7.0V Supply Voltage Range, V pp **...............................-0.6V to +13.5V Input Voltage Range, All inputs except A9 **..-0.6V to +6.0V A9.....-0.6V to +13.5V Output Voltage Range**...............................-0.6V to V CC +.6V Minimum Operating Free-air Temperature, T A ..............-55°C Maximum Operating Case Temperature, T C ...................125°C Storage Temperature Range, T stg .....................-65°C to 150°C RECOMMENDED OPERATING CONDITIONS NOTES: 1. V CC must be applied before or at the same time as VPP and removed after or at the same time as VPP. The deivce must not be inserted into or removed from the board when V PP or VCC is applied. 2. V PP can be connected to VCC directly (except in the program mode). V CC supply current in this case would be ICC2 + IPP1. ELECTRICAL CHARACTERISTICS OVER RECOMMENDED RANGES OF SUPPLY VOLTAGE AND OPERATING FREE-AIR TEMPERATURE NOTES: 1. Typical values are at T A =25°C and nominal voltages. 2. This parameter has been characterized at 25°C and is not tested. TEST CONDITIONS MIN TYP 1 MAX UNIT VOH IOH = -400µA 2.4 V VOL IOL = 2.1mA 0.4 V II VI = 0V to 5.5V ±1 µA IO VO = 0V to VCC ±5 µA IPP1 VPP = VCC = 5.5V 100 µA IPP2 VPP = 13V 30 50 mA TTL-Input Level VCC = 5.5V, E\=VIH 1mA CMOS-Input Level VCC = 5.5V, E\=VCC 300 µA ICC2 VCC supply current (active) '27C256-12 '27C256-15 '27C256-17 '27C256-20,-25 E\=VIL, VCC=5.5V tcycle = minimum, outputs open 15 25 mA PARAMETER ICC1 VCC supply current (standby) High-level output voltage Low-level output voltage Input current (leakage) VPP supply current Output current (leakage) VPP supply current (during program pulse) 2 MIN TYP MAX 4.5 5 5.5 6 6.25 6.5 VCC-0.6 12.5 12.75 13 TTL inputs 2.2 VCC+.6 CMOS inputs VCC-0.2 VCC+.6 TTL inputs -0.5 0.8 CMOS inputs -0.5 0.2 VID 11.5 12 12.5 TA -55 TC +125 VCC Read Mode 1 FLASHRITE Pulse programming algorithm Supply Voltage Read Mode 2 FLASHRITE Pulse programming algorithm VPP High-level input voltage VIH Supply Voltage VIL Low-level input voltage Operating free-air temperature Operating case temperature Voltage level on A9 for signature mode |
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