描述 Description

The Microchip AT27C256R is a low-power, high-performance 256-KbitOne Time Programmable EPROM organized as 32-Kbit x 8. Requiring a single 5Vpower supply, in normal read mode operation typical power consumption is only 8mA in active mode and less than 10 μA in standby mode. Any byte can be accessedin less than 45 ns, eliminating the need for speed reducing WAIT states onhigh-performance microprocessor systems.

特性 Features

256-Kbit (32-Kbit x 8)
Low-power CMOS operation
Standard power supply range, 5V +/-10%
100 μA max standby
?20mA max active at 5 MHz
Parallel Interface
45 ns access time
High-reliability CMOS technology
2,000V ESD protection
200 mA latchup immunity
Rapid programming algorithm – 100 μs/byte (typical)
CMOS and TTL compatible inputs and outputs
Integrated product identification code
Industrial Temperature Range: -40°C to 85°C
Available in Green (Pb/Halide-free) Packaging Only
32-lead, Plastic J-leaded Chip Carrier (PLCC)

簡介

AT27C256R屬于集成電路（IC）的存儲器。由制造生產(chǎn)的AT27C256R存儲器存儲器是集成電路上用作數(shù)據(jù)存儲設(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。