AT24CO4

A 4K x 8 (32K bit) Serial Electrically Erasable PROM is the 24C32. This gadget was created for high-end, low-power uses like data collecting or personal communications. The 24C32 has an input cache with a capacity of eight 8-byte pages, or 64 bytes, allowing quick write loads. Additionally, it has a fixed 4K-bit block of ultra-high endurance memory for regularly changing data. Up to the 32K border, the 24C32 may read both randomly and sequentially. Up to eight 24C32 devices can share a bus with functional address lines, providing a maximum address space of 256K bits. This device is perfect for moderate POWER??non-volatile code and data applications thanks to advanced CMOS technology. The typical 8-pin plastic DIP and 8-pin surface mount SOIC packaging for the 24C32 are also available.   Features:- ? Operating voltage range: 4.5V to 5.5V - Maximum read current: 150 A at 5.5V - Peak write current: 3mA at 5.5V - Typical standby current: 1 A ? I2C compliant, industry-standard two-wire bus protocol with 100 kHz and 400 kHz modes ? Autonomous write cycle (including auto-erase) ? Switchable circuitry for data protection ? High Endurance Block has a guaranteed 10,000,000 Erase/Write cycles. - Guaranteed 1,000,000 E/W cycles for Standard Endurance Block ? Available in 8 byte page or byte modes. ? A 64-byte input cache with 1 page by 8 lines for quick write loads. ? Schmitt trigger with filtered inputs to reduce noise ? Ground bounce elimination by output slope control ? A typical write cycle time, byte or page, of 2 ms ? A single bus may support up to 8 chips and 256K bits of total memory. ? Protection from electrostatic discharge > 4000V ? 200-year data retention ? PDIP/SOIC 8-pin packages ? Variable temperatures Industrial (I): -40?C to +85?C Commercial (C): 0?C to +70?C

The AT24C512C functions as a slave device and communicates with a host controller, also known as the bus master, using a straightforward two-wire digital serial interface that is I2C-compatible. On a serial bus, the master initiates and manages all read and write operations to slave devices, and both the master and slave devices are capable of sending and receiving data. Just two signal lines?Serial Clock (SCL) and Serial Data?make up the serial interface (SDA). The bilateral SDA pin is used to receive command and detailed empirical from the master as well as to transmit data back to the master, while the SCL pin is used to accept the clock signal from the master. To reduce the impact of input spikes and bus noise, the SCL and SDA pins each include Schmitt Triggers and inbuilt spike suppression filters. The Most Significant bit (MSb) is always transmitted first when sending commands or data. After eight bits (one byte) of information have been exchanged during bus communication, the receiving device must answer with an Acknowledge (ACK) or No-Acknowledge (NACK) response bit during such a ninth clock cycle (ack/nack clock cycle) produced by the master. As a result, nine clock cycles are needed to send one byte of data. There must be no gaps or interruptions throughout any data transfer operation since there are no spare clock cycles. AT24C512C-SSHD Datasheet 

A CMOS 8-bit microcontroller with 20K bytes of Flash programmable read-only memory and 256 bytes of RAM, the AT89C55WD is a low-power, high-performance device. The product is made using high-density flash storage technology from Atmel and has pinout and an instruction set that comply with industry standards 80C51 and 80C52. An ordinary nonvolatile memory programmer can user programme the programme memory thanks to the on-chip Flash. The Atmel AT89C55WD is a potent microcomputer that offers a very flexible and area of business to many embedded control applications by mixing a flexible 8-bit CPU with Flash on a monolithic chip. The following features are included as standard with the AT89C55WD: A full-duplex serial port, an on-chip oscillator, clock circuitry, three 16-bit timer/counters, 32 I/O lines, 256 bytes of RAM, 20K bytes of Flash, and a six-vector, two-level interrupt architecture. The AT89C55WD also features two software-selectable power-saving modes and static logic allowing operating down to zero frequency. The CPU is turned off in idle mode, but the RAM, timers and counters, serial port, and interruption system are still operational. The oscillator is frozen in the Power-down Mode, which also disables all other chip operations until the next error detection or device reset. However, the RAM contents are saved.

Features of M25P40-VMN6TPB?

• ?4 Mbit of Flash memory
• ?2.3 V to 3.6 V single supply voltage
• ?SPI bus compatible serial interface
• ?75 MHz clock rate (maximum)
• ?Page Program (up to 256 bytes) in 0.8 ms (typical)
• ?Sector Erase (512 Kbit) in 0.6 s (typical)
• ?Bulk Erase (4 Mbit) in 4.5 s (typical)
• ?Deep Power-down mode 1 ?A (typical)
• ?Hardware Write Protection: protected area size defined by three non-volatile bits (BP0, BP1 and BP2)
• ?Electronic signatures ? JEDEC standard two-byte signature (2013h) ? Unique ID code (UID) with 16 bytes read only, available upon customer request ? RES instruction, one-byte, signature (12h), for backward compatibility
• ?Packages ? RoHS compliant
• ?Automotive grade parts available

Characteristics

• Memory Size -
• Supply Voltage - Min: 2.3 V  
• Supply Voltage - Max: 3.6 V
• Active Read Current - Max: 8 mA
• Interface Type: SPI
• Maximum Clock Frequency: 75 MHz
• Organisation: 512 k x 8
• Data Bus Width: 8 bit
• Timing Type: Synchronous
• Minimum Operating Temperature: - 40 C
• Maximum Operating Temperature: + 85 C
• Packaging: Reel / Cut Tape
• Memory Type: NOR
• Product Type: NOR Flash
• Speed: 75 MHz