EEPROM stands for Electrically Erasable Programmable Read-Only Memory. It is a type of non-volatile memory used in computers, microcontrollers, and other electronic devices to store data that must be retained even when the power is turned off. EEPROM is a variation of ROM (Read-Only Memory) that can be both programmed and erased electrically.

Part Number: 93LC46B1, 93LC46BI

Function: 1K Microwire Compatible Serial EEPROM

Package: SOIC, DIP 8 Pin Type

Manufacturer: Microchip Technology

Images:

1 page

Description

The Microchip Technology Inc. 93AA46A / 93LC46B / 93AA46C, 93AA46BI,  93LC46B1 devices are 1Kbit low-voltage serial Electrically Erasable PROMs (EEPROM). Word-selectable devices such as the 93AA46C, 93LC46C or 93C46C are dependent upon external logic levels driving the ORG pin to set word size.

For dedicated 8-bit communication, the 93AA46A, 93LC46A or 93C46A devices are available, while the 93AA46B, 93LC46B and 93C46B devices provide dedicated 16-bit communication.

Pinouts

Features

• Low-Power CMOS Technology

• ORG Pin to Select Word Size for ‘46C’ Version

• 128 x 8-bit Organization ‘A’ Devices (no ORG)

• 64 x 16-bit Organization ‘B’ Devices (no ORG)

• Self-Timed Erase/Write Cycles (including Auto-Erase)

• Automatic Erase All (ERAL) Before Write All (WRAL)

• Power-On/Off Data Protection Circuitry

• Industry Standard 3-Wire Serial I/O

• Device Status Signal (Ready/Busy)

• Sequential Read Function

 

Other data sheets are available within the file:

93AA46A, 93AA46B, 93LC46A, 93LC46B, 93C46A, 93C46B,

93AA46C, 93LC46C, 93C46C

93LC46B1 PDF Datasheet

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Part Number: 25L1605AM2C, MX25L1605AM2C

Function: 16M-BIT [x 1] CMOS SERIAL FLASH

Package: SOP 8 Pin type

Manufacturer: Macronix International

Images:

Description

The 25L1605AM2C is a CMOS 16,777,216 bit serial Flash memory, which is configured as 2,097,152 x 8 internally. The MX25L1605A features a serial peripheral interface and software protocol allowing operation on a simple 3-wire bus. The three bus signals are a clock input (SCLK), a serial data input (SI), and a serial data output (SO). SPI access to the device is enabled by CS# input.

After program/erase command is issued, auto program/erase algorithms which program/ erase and verify the specified page or sector/block locations will be executed.

Program command is executed on page (256 bytes) basis, and erase command is executes on chip or sector(4K-bytes) or block(64K-bytes).

[…]

Features

1 Serial Peripheral Interface (SPI) compatible — Mode 0 and Mode 3

2. 16,777,216 x 1 bit structure

3. 512 Equal Sectors with 4K byte each
– Any Sector can be erased individually

4. 32 Equal Blocks with 64K byte each
– Any Block can be erased individually

5. Single Power Supply Operation
– 2.7 to 3.6 volt for read, erase, and program operations

6. Latch-up protected to 100mA from -1V to Vcc +1V

7. Low Vcc write inhibit is from 1.5V to 2.5V

Pinouts:

The MX25L1605A is designed to offer protection against accidental erasure or programming caused by spurious system level signals that may exist during power transition. During power up the device automatically resets the state machine in the Read mode. In addition, with its control register architecture, alteration of the memory contents only occurs after successful completion of specific command sequences.

25L1605AM2C PDF Datasheet