AM27C256 |
RFQ for AM27C256 Required Field |
 |
| Technical/Catalog Information | AM27C256-120DC |
| Vendor | AMD |
| Category | Integrated Circuits (ICs) |
| Other Names | AM27C256 120DC AM27C256120DC |
| Product | Manufacturers | Pack | D/C |
| AM27C256 | - | DIP | - |
The Am27C256 is a 256K-bit ultraviolet erasable programmable read-only memory. It is organized as 32K words by 8 bits per word, operates from a single +5 V supply, has a static standby mode, and features fast single address location programming. Products are available in windowed ceramic DIP packages as well as plastic one time programmable (OTP) PDIP, TSOP, and PLCC packages.
Typically, any byte can be accessed in less than 55 ns, allowing operation with high-performance microprocessors without any WAIT states. The Am27C256 offers separate Output Enable (OE) and Chip Enable (CE)
controls, thus eliminating bus contention in a multiple bus microprocessor system.
AMD's CMOS process technology provides high speed, low power, and high noise immunity. Typical power consumption is only 80 mW in active mode, and 100 mW in standby mode.
All signals are TTL levels, including programming signals. Bit locations may be programmed singly, in blocks, or at random. The Am27C256 supports AMD's Flashrite programming algorithm (100 ms pulses) resulting in typical programming time of 4 seconds.
Features |
| DISTINCTIVE CHARACTERISTICSFast access time- 55 nsLow power consumption- 20 mA typical CMOS standby currentJEDEC-approved pinoutSingle +5 V power supply±10% power supply tolerance available100% Flashrite programming- Typical programming time of 4 seconds Latch-up protected to 100 mA from 1 V toVCC + 1 VHigh noise immunityVersatile features for simple interfacing- Both CMOS and TTL input/outputcompatibility- Two line control functionsStandard 28-pin DIP, PDIP, 32-pin TSOP andPLCC packages |
