Datasheet 搜索 > EEPROM芯片 > Microchip（微芯） > AT28C64B-15SU 数据手册 > AT28C64B-15SU 数据手册 1/18 页
器件3D模型￥ 42.399
AT28C64B-15SU 数据手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
EEPROM芯片
封装:
SOIC-28
描述:
64-Kbit (8K x 8bit)，并行接口，工作电压：5V
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
AT28C64B-15SU数据手册
Page:
of 18 Go
若手册格式错乱，请下载阅览PDF原文件
Features
• Fast Read Access Time – 150 ns
• Automatic Page Write Operation
– Internal Address and Data Latches for 64 Bytes
• Fast Write Cycle Times
– Page Write Cycle Time: 10 ms Maximum (Standard)
2 ms Maximum (Option – Ref. AT28HC64BF Datasheet)
– 1 to 64-byte Page Write Operation
• Low Power Dissipation
– 40 mA Active Current
– 100 µA CMOS Standby Current
• Hardware and Software Data Protection
• DATA Polling and Toggle Bit for End of Write Detection
• High Reliability CMOS Technology
– Endurance: 100,000 Cycles
– Data Retention: 10 Years
• Single 5V ±10% Supply
• CMOS and TTL Compatible Inputs and Outputs
• JEDEC Approved Byte-wide Pinout
• Industrial Temperature Ranges
• Green (Pb/Halide-free) Packaging Option Only
1. Description
The AT28C64B is a high-performance electrically-erasable and programmable read-
only memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits.
Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers
access times to 150 ns with power dissipation of just 220 mW. When the device is
deselected, the CMOS standby current is less than 100 µA.
The AT28C64B is accessed like a Static RAM for the read or write cycle without the
need for external components. The device contains a 64-byte page register to allow
writing of up to 64 bytes simultaneously. During a write cycle, the addresses and 1 to
64 bytes of data are internally latched, freeing the address and data bus for other
operations. Following the initiation of a write cycle, the device will automatically write
the latched data using an internal control timer. The end of a write cycle can be
detected by DATA
POLLING of I/O7. Once the end of a write cycle has been
detected, a new access for a read or write can begin.
Atmel’s AT28C64B has additional features to ensure high quality and manufacturabil-
ity. The device utilizes internal error correction for extended endurance and improved
data retention characteristics. An optional software data protection mechanism is
available to guard against inadvertent writes. The device also includes an extra
64 bytes of EEPROM for device identification or tracking.
64K (8K x 8)
Parallel
EEPROM with
Page Write and
Software Data
Protection
AT28C64B
0270L–PEEPR–2/09
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
