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RFQ

제품 집적 회로 IC메모리 IC 칩메모리 IC 제품AT29C040A-90TU

Microchip Technology

AT29C040A-90TU

Name: AT29C040A-90TU
Brand: Microchip Technology
SKU: 774-AT29C040A-90TU

제조업체:

Microchip Technology

ERSA 부품 번호:

774-AT29C040A-90TU

데이터 시트:

PDF 데이터시트

설명:

IC FLASH 4MBIT PARALLEL 32TSOP

RoHS 현황:

공유하다:

왜 우리를 선택해야 합니까?

전문 플랫폼

B2B 및 B2C 구매

초고속 배송

1-2일 이내 배송

다양한 종류

정품 제조업체

365일 보증

책임 있는 품질

기술 사양

제조업체

Microchip Technology

시리즈

Packaging

Tray

Part Status

Obsolete

메모리 유형

Non-Volatile

메모리 포맷

FLASH

기술

FLASH

메모리 크기

4Mbit

FAQ

What applications is the AT29C040A-90TU intended for?

A: The AT29C040A-90TU is a versatile, high-reliability Flash memory suitable for a wide range of applications that require fast access to non-volatile data. According to various distributor and application sources, it is commonly used in industrial automation, automotive electronics, consumer electronics, telecommunications, and medical devices. It is ideal for storing firmware, boot code, and configuration parameters in embedded systems, PLCs, routers, and other parallel-bus-based control equipment. However, the product status is obsolete, meaning it is not recommended for new designs; customers should contact Microchip or their authorized distributors for replacement or upgrade options.

What are the endurance and data retention specifications for the AT29C040A-90TU?

A: The AT29C040A-90TU offers reliable long-term memory storage. According to the device’s specifications, any sector can be written to in excess of 10,000 cycles, ensuring high endurance for applications requiring frequent in-system updates. The device also provides robust data retention; as a non-volatile Flash memory, it retains stored information for an extended period, though specific retention time should be verified in the latest manufacturer documentation.

How is the AT29C040A-90TU programmed, and what makes its programming mechanism unique?

A: Reprogramming the AT29C040A-90TU is performed on a sector basis. To program a sector, 256 bytes of data are loaded into the device’s internal latches, and then all 256 bytes are simultaneously programmed during the internal programming period. A key feature is that it does not require high input voltages for programming; the entire operation is controlled by standard 5V commands. During a reprogram cycle, the address and data buses are released after the data is latched internally, allowing other operations to occur while the device completes its program cycle. The end of a program cycle can be detected via DATA polling of I/O7.

What are the key features and electrical specifications of the AT29C040A-90TU?

A: The AT29C040A-90TU is designed for high-performance, low-power applications. It operates on a 4.5V to 5.5V supply and employs sector-based programming with 2048 sectors, each 256 bytes in size. The device features a fast sector program cycle time of 10 ms, allowing for quick in-system updates. It features low power dissipation with a typical active current of 40 mA and a CMOS standby current of less than 100 µA. The device is manufactured using Atmel’s advanced nonvolatile CMOS EEPROM technology.

What is the AT29C040A-90TU?

A: The AT29C040A-90TU is a 4-megabit (4Mb) in-system reprogrammable Flash memory device that operates on a single 5V supply. It is organized as 524,288 words of 8 bits each (512K x 8) and features a fast 90 ns access time. The device is housed in a 32-pin TSOP (Thin Small Outline Package) and is rated for industrial temperatures from -40°C to +85°C. It uses a parallel interface for communication with a host microcontroller or processor.

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