4-bit Microcontroller With Built-in Lcd Driver And Melody Circuit Electronic Componets

The MSM64P155 (1.5 V)/64P155L (3.0 V) is a one-time-programmable ROM version product, which has one-time PROM (OTP) as internal program memory. On the other hand, the MSM64155 is a mask ROM-version product, which has mask ROM as internal program memory. Unlike the mask ROM-version MSM64155 which has a P-well CMOS structure, the MSM64P155 64P155L has been fabricated with the N-well CMOS-structured EPROM process technology. Therefore, the MSM64P155 64P155L differs from the MSM64155 in the polarity of the power supply for LCD bias generation and in the external circuit structure. Unlike the mask ROM-version product, the MSM64P155 64P155L cannot be supplied in the form of a chip. The MSM64P155 64P155L is an OTP-version product used to evaluate an application program. The MSM64P155 64P155L has two operation modes, Microcontroller operation mode and PROM mode. The Microcontroller operation mode is used to operate the MSM64P155 64P155L like a mask ROM-version product and the PROM mode is used to program or read the PROM. By Oki Semiconductor
MSM64P155 's PackagesMSM64P155 's pdf datasheet



MSM64P155 Pinout, Pinouts
MSM64P155 pinout,Pin out
This is one package pinout of MSM64P155,If you need more pinouts please download MSM64P155's pdf datasheet.

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