M93C46-MN6T Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	1Kb (128 x 8, 64 x 16)
Clock Frequency:	2MHz
Write Cycle Time - Word, Page:	5ms
Memory Interface:	SPI
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	M93C46

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M93C46-MN6T Application Field and Working PrincipleMemory chips are essential components in the operation of computers and other digital devices. One such chip is the M93C46-MN6T. It is a Microwire serial 256-bit EEPROM (Electrically Erasable Programmable Read-Only Memory) developed by Microchip Technology Inc. This chip features a three-wire serial interface, an erase/write cycle time of about 10ms, and a data retention of up to 10 years. This chip provides high performance, low power dissipation, and a wide range of applications.Application FieldThe M93C46-MN6T is frequently used as a memory to store parameters, setup data, and program code so that data is not lost when the power is switched off. This chip is also ideal for applications where regular maintenance and changes to data are required. It is commonly used in remote keyless entry systems, computer peripherals and medical equipment, HVAC systems, automotive systems, electronic toys, and other industrial control applications.Working PrincipleThe working principle of the M93C46-MN6T mainly involves the use of a three-wire serial protocol. It utilizes the MicroChip Memory Bus Protocol (MMB) to control the memory functions. A number of commands that areanalogous to the read and write operations performed in computer memory are available to control the chip. This includes an "Erase/Write" function, which is similar to the "Write Cycle" described in computer memories.The protocol for the M93C46-MN6T works in the following way. A start bit is sent to the chip from the master controller. The chip then responds with an acknowledge bit. The master controller then sends the command and address to the chip. The chip then decodes the command and address, and responds with an acknowledge or not acknowledge bit. If the command is a read command, the chip then sends the requested data out over the serial data line. If the command is a write command, the data is written to the memory and the chip responds with an acknowledge. If the command is an erase command, the chip erases the address and sends an acknowledge.ConclusionThe M93C46-MN6T is a versatile memory chip with a wide range of applications, from remote keyless entry systems to medical equipment to electronic toys. Its three-wire serial interface and erase/write cycle make it an ideal choice for many applications where data changes need to be made quickly and regularly. The use of the MicroChip Memory Bus Protocol makes this chip compatible with many industrial control systems.

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