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M29W010B90K6F Datasheet(PDF) 2 Page - STMicroelectronics |
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M29W010B90K6F Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 19 page M29W010B 2/19 Figure 2. PLCC Connections AI02748 A13 A10 17 A1 A0 DQ0 A7 A4 A3 A2 A6 A5 9 A8 1 A9 DQ7 A14 32 M29W010B A11 G E 25 Table 1. Signal Names A0-A16 Address Inputs DQ0-DQ7 Data Inputs/Outputs E Chip Enable G Output Enable W Write Enable VCC Supply Voltage VSS Ground NC Not Connected Internally SUMMARY DESCRIPTION The M29W010B is a 1 Mbit (128Kb x8) non-vola- tile memory that can be read, erased and repro- grammed. These operations can be performed using a single low voltage (2.7 to 3.6V) supply. On power-up the memory defaults to its Read mode where it can be read in the same way as a ROM or EPROM. Figure 3. TSOP Connections A1 A0 DQ0 A7 A4 A3 A2 A6 A5 A13 A10 A8 A9 DQ7 A14 A11 G E DQ5 DQ1 DQ2 DQ3 DQ4 DQ6 NC W A16 A12 NC VCC A15 AI02754 M29W010B 8 1 9 16 17 24 25 32 VSS The memory is divided into blocks that can be erased independently so it is possible to preserve valid data while old data is erased. Each block can be protected independently to prevent accidental Program or Erase commands from modifying the memory. Program and Erase commands are writ- ten to the Command Interface of the memory. An on-chip Program/Erase Controller simplifies the process of programming or erasing the memory by taking care of all of the special operations that are required to update the memory contents. The end of a program or erase operation can be detected and any error conditions identified. The command set required to control the memory is consistent with JEDEC standards. Chip Enable, Output Enable and Write Enable sig- nals control the bus operation of the memory. They allow simple connection to most micropro- cessors, often without additional logic. The memory is offered in PLCC32 or TSOP32 (8 x 20mm) packages and it is supplied with all the bits erased (set to ’1’). In order to meet environmental requirements, ST offers the M29W010B 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 rat- ings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK speci- fications are available at: www.st.com. |
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