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M27C400-80F1TR датащи(PDF) 1 Page - STMicroelectronics |
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M27C400-80F1TR датащи(HTML) 1 Page - STMicroelectronics |
1 / 14 page 1/14 May 1999 M27C400 4 Mbit (512Kb x8 or 256Kb x16) UV EPROM and OTP EPROM s 5V ± 10% SUPPLY VOLTAGE in READ OPERATION s ACCESS TIME: 55ns s BYTE-WIDE or WORD-WIDE CONFIGURABLE s 4 Mbit MASK ROM REPLACEMENT s LOW POWER CONSUMPTION – Active Current 70mA at 8MHz – Stand-by Current 100µA s PROGRAMMING VOLTAGE: 12.5V ± 0.25V s PROGRAMMING TIME: 100µs/word s ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: B8h DESCRIPTION The M27C400 is an 4 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for micro- processor systems requiring large data or program storage. It is organised as either 512 Kwords of 8 bit or 256 Kwords of 16 bit. The pin-out is compat- ible with the most common 8 Mbit Mask ROM. The FDIP40W (window ceramic frit-seal package) has a transparent lid which allows the user to ex- pose the chip to ultraviolet light to erase the bit pat- tern. A new pattern can then be written rapidly to the de- vice by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C400 is offered in PDIP40 package. 1 40 1 40 FDIP40W (F) PDIP40 (B) Figure 1. Logic Diagram AI01634 18 A0-A17 BYTEVPP Q0-Q14 VCC M27C400 G E VSS 15 Q15A–1 |
Аналогичный номер детали - M27C400-80F1TR |
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Аналогичное описание - M27C400-80F1TR |
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