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M27C4001-12XB1 数据表(PDF) 5 Page - STMicroelectronics |
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M27C4001-12XB1 数据表(HTML) 5 Page - STMicroelectronics |
5 / 24 page M27C4001 Summary description 5/25 1 Summary description The M27C4001 is a 4 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large programs and is organised as 524,288 by 8 bits. The FDIP32W (window ceramic frit-seal package) has a transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C4001 is offered in PDIP32, PLCC32 and TSOP32 (8 x 20 mm) packages. In order to meet environmental requirements, ST offers the M27C4001 in ECOPACK® packages. ECOPACK packages are Lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 1. Logic Diagram Table 1. Signal names A0-A18 Address Inputs Q0-Q7 Data Outputs E Chip Enable G Output Enable VPP Program Supply VCC Supply Voltage VSS Ground AI00721B 19 A0-A18 Q0-Q7 VPP VCC M27C4001 VSS 8 G E |
类似零件编号 - M27C4001-12XB1 |
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类似说明 - M27C4001-12XB1 |
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