描述 Description

The AT49F040A is a 5-volt only in-system reprogrammable Flash memory. Its 4 megabits of memory is organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 55 ns with power dissipation of just 165 mW over the commercial temperature range.

特性 Features

? Single-voltage Operation
?? – 5V Read
?? – 5V Reprogramming
? Fast Read Access Time – 55 ns
? Internal Program Control and Timer
? Sector Architecture
?? – One 16K Bytes Boot Block with Programming Lockout
?? – Two 8K Bytes Parameter Blocks
?? – Eight Main Memory Blocks (One 32K Bytes, Seven 64K Bytes)
? Fast Erase Cycle Time – 6 Seconds
? Byte-by-Byte Programming – 20 μs/Byte Typical
? Hardware Data Protection
? DATA Polling for End of Program Detection
? Low Power Dissipation
?? – 30 mA Active Current
?? – 70 μA CMOS Standby Current
? Typical 10,000 Write Cycles
? Green (Pb/Halide-free) Packaging Option

簡介

AT49F040A屬于集成電路（IC）的存儲(chǔ)器。由制造生產(chǎn)的AT49F040A存儲(chǔ)器存儲(chǔ)器是集成電路上用作數(shù)據(jù)存儲(chǔ)設(shè)備的半導(dǎo)體器件。這些器件分為非易失性或易失性兩種，格式包括 CBRAM、DRAM、EEPROM、EERAM、EPROM、閃存、FRAM、NVSRAM、PCM (PRAM)、PSRAM、RAM 和 SRAM。這些器件的存儲(chǔ)容量為 64 b 至 6 Tb 不等，接口有 I2C、MMC、并行、eMMC、串行、單線、SPI、UFS、Xccela 總線和 1-線。