參數(shù)資料
型號: MC68HC705K1P
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP16
封裝: PLASTIC, DIP-16
文件頁數(shù): 138/140頁
文件大?。?/td> 1219K
代理商: MC68HC705K1P
Personality EPROM (PEPROM)
PEPROM Erasing
MC68HC705K1 — Rev. 2.0
Technical Data
MOTOROLA
Personality EPROM (PEPROM)
97
Reading the PEPROM is easiest when each PEPROM column contains
one byte. Selecting a row 0 bit selects the first bit, and incrementing the
PEPROM bit select register (PEBSR) selects the next row 1 bit from the
same column. Incrementing PEBSR seven more times selects the
remaining bits of the column and selects the row 0 bit of the next column,
setting the row 0 flag, PEPRZF.
A PEPROM byte that has been read can be transferred to the
personality EPROM bit select register (PEBSR) so that subsequent
reads of the PEBSR quickly yield that PEPROM byte.
10.6 PEPROM Erasing
MCUs with windowed packages permit PEPROM erasure with
ultraviolet light. Erase the PEPROM by exposing it to 15 Ws/cm2 of
ultraviolet light with a wave length of 2537 angstroms. Position the
ultraviolet light source 1 inch from the window. Do not use a shortwave
filter. The erased state of a PEPROM bit is a logic 0.
相關PDF資料
PDF描述
MC68HC705K1DW 8-BIT, OTPROM, MICROCONTROLLER, PDSO16
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MC68HRC705KJ1CS 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CDIP16
MC68HLC705KJ1CP 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
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