AM29F002NBB

The AM29F002NBB is a 2 Megabit (256 K x 8-Bit)CMOS 5.0 Volt-only Boot Sector Flash Memory.The device is offered in 32-pin PLCC,32-pin TSOP, and 32-pin PDIP packages.This device is designed to be programmed in-system with the stan- dard system 5.0 volt VCC supply.No VPP is required for write or erase operations.It can also be pro-grammed in standard EPROM programmers.And is manufactured using AMD's 0.32 µm process technology,and offers all the features and ben-efits of the Am29F002,which was manufactured using 0.5 µm process technology.

Features of the AM29F002NBB are:(1)Single power supply operation5.0 Volt-only operation for read,erase,and program operationsMinimizes system level requirements;(2)Manufactured on 0.32µm process technology:Compatible with 0.5µm Am29F002 device;(3)High performance:Access times as fast as 55 ns;(4)Low power consumption (typical values at 5 MHz):1µA standby mode current20mA read current30mA program/erase current;(5)Flexible sector architecture:One 16 Kbyte,two 8 Kbyte,one 32 Kbyte,and three 64 Kbyte sectorsSupports full chip erase Sector Protection features..A hardware method of locking a sector to prevent any program or erase operations within that sector,they can be locked via programming equipment
Temporary Sector Unprotect feature allows code changes in previously locked sectors;(6)Top or bottom boot block configurations available;(7)Embedded Algorithms: Embedded Erase algorithm automatically preprograms and erases the entire chip or any combination of designated sectorsEmbedded Program algorithm automatically writes and verifies data at specified addresses;(8) Minimum 1,000,000 write cycle guarantee per sector;(9)20-year data retention at 125°C:Reliable operation for the life of the system;(10)Package option:32-pin PDIP32-pin TSOP32-pin PLCC;(11)Compatibility with JEDEC standards:Pinout and software compatible with single-power supply FlashSuperior inadvertent write protection;(12)Data# Polling and toggle bits:Provides a software method of detecting program or erase operation completion;(13)Erase Suspend/Erase Resume: Suspends an erase operation to read data from, or program data to, a sector that is not being erased,then resumes the erase operation;(14)Hardware reset pin (RESET#): Hardware method to reset the device to reading array data (not available on Am29F002NB).

The absolute maximum ratings of the AM29F002NBB can be summarized as:(1)Storage Temperature Plastic Packages:65 to +150;(2)Ambient Temperature with Power Applied:55 to +125;(3)Voltage with Respect to Ground:VCC(Note 1)..2.0V to +7.0VA9, OE#,and RESET#(Note 2)..2.0V to +12.5VAll other pins(Note 1)..0.5V to +7.0V;(4)Output Short Circuit Current(Note 3):200mA.Notes:
1.Minimum DC voltage on input or I/O pins is -0.5V. During voltage transitions,input or I/O pins may overshoot VSS to2.0V for periods of up to 20 ns. See Figure 6.Maximum DC voltage on input or I/O pins is V_CC +0.5 V.During voltage transitions,input or I/O pins may overshoot to VCC+2.0 V for periods up to 20 ns. See Figure 7.
2.   Minimum DC input voltage on pins A9, OE#, and RESET# is 0.5 V. During voltage transitions, A9, OE#, and RESET# may overshoot VSS to 2.0V for periods of up to 20ns.See Figure 6.Maximum DC input voltage on pin A is +12.5V which may overshoot to +13.5V for periods up to 20 ns(RESET# is not available on Am29F002NB)
3.No more than one output may be shorted to ground at a time.Duration of the short circuit should not be greater than one second.
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this data sheet is not implied. Exposure of the device to absolute maximum rating conditions for extended periods may affect device reliability.

If you want to know more information such as the electrical characteristics about the AM29F002NBB, please download the datasheet in www.seekic.com or www.chinaicmart.com .