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M27V800 데이터시트(PDF) 1 Page - STMicroelectronics |
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1 / 16 page 1/16 September 1998 M27V800 8 Mbit (1Mb x8 or 512Kb x16) Low Voltage UV EPROM and OTP EPROM s LOW VOLTAGE READ OPERATION: 3V to 3.6V s FAST ACCESS TIME: 100ns s BYTE-WIDE or WORD-WIDE CONFIGURABLE s 8 Mbit MASK ROM REPLACEMENT s LOW POWER CONSUMPTION – Active Current 30mA at 8MHz – Standby Current 20 µA s PROGRAMMING VOLTAGE: 12.5V ± 0.25V s PROGRAMMING TIME: 100 µs/byte (typical) s ELECTRONIC SIGNATURE – Manufacturer Code: 0020h – Device Code: 00B2h DESCRIPTION The M27V800 is a low voltage 8 Mbit EPROM of- fered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large data or program storage. It is organised as either 1 Mbit words of 8 bit or 512 Kbit words of 16 bit. The pin- out is compatible with a 8 Mbit Mask ROM. 1 42 1 42 44 1 FDIP42W (F) PDIP42 (B) SO44 (M) PLCC44 (K) Figure 1. Logic Diagram AI01851 19 A0-A18 BYTEVPP Q0-Q14 VCC M27V800 G E VSS 15 Q15A–1 Table 1. Signal Names A0-A18 Address Inputs Q0-Q7 Data Outputs Q8-Q14 Data Outputs Q15A–1 Data Output / Address Input E Chip Enable G Output Enable BYTEVPP Byte Mode / Program Supply VCC Supply Voltage VSS Ground |
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