Datasheet > AT49BV640T-85TJ

AT49BV640T-85TJ

更新时间： 2024-11-28 03:25:23

品牌	Logo	应用领域
爱特美尔 - ATMEL		光电二极管
页数	文件大小	规格书
30页	376K
描述
Flash, 4MX16, 85ns, PDSO48, 12 X 20 MM, PLASTIC, MO-142DD, TSOP1-48

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AT49BV640T-85TJ 数据手册

Features

• 64-megabit (4M x 16) Flash Memory

• 2.7V - 3.6V Read/Write

• High Performance

– Asynchronous Access Time – 70 ns

– Page Mode Read Time – 20 ns

• Sector Erase Architecture

– Eight 4K Word Sectors with Individual Write Lockout

– 32K Word Main Sectors with Individual Write Lockout

• Typical Sector Erase Time: 32K Word Sectors – 500 ms; 4K Word Sectors – 100 ms

• Suspend/Resume Feature for Erase and Program

– Supports Reading and Programming Data from Any Sector by Suspending Erase

of a Different Sector

64-megabit

(4M x 16)

– Supports Reading Any Word by Suspending Programming of Any Other Word

• Low-power Operation

Page Mode

2.7-volt Flash

Memory

– 30 mA Active

– 10 µA Standby

• 1.8V I/O Option Reduces Overall System Power

• Data Polling and Toggle Bit for End of Program Detection

• VPP Pin for Write Protection and Accelerated Program/Erase Operations

• RESET Input for Device Initialization

• TSOP or CBGA Package

• Top or Bottom Boot Block Configuration Available

• 128-bit Protection Register

• Common Flash Interface (CFI)

AT49BV640

AT49BV640T

Description

Not Recommended

The AT49BV640(T) is a 2.7-volt 64-megabit Flash memory. The memory is divided

into multiple sectors for erase operations. The device can be read or reprogrammed

off a single 2.7V power supply, making it ideally suited for in-system programming.

The output voltage can be separately controlled down to 1.65V through the VCCQ

supply pin. This device can operate in the asynchronous or page read mode.

for New Design

Contact Atmel to discuss

the latest design in trends

and options

To increase the flexibility of the device, it contains an Erase Suspend and Program

Suspend feature. This feature will put the erase or program on hold for any amount of

time and let the user read data from or program data to any of the remaining sectors.

The end of a program or an erase cycle is detected by Data Polling or the toggle bit.

The VPP pin provides data protection and faster programming and erase times. When

the V_PPinput is below 0.8V, the program and erase functions are inhibited. When V_PP

is at 1.65V or above, normal program and erase operations can be performed. With

V_PPat 12.0V, the program and erase operations are accelerated.

With V_PPat 12V, a six-byte command (Enter Single Pulse Program Mode) to remove

the requirement of entering the three-byte program sequence is offered to further

improve programming time. After entering the six-byte code, only single pulses on the

write control lines are required for writing into the device. This mode (Single Pulse

Word Program) is exited by powering down the device, by taking the RESET pin to

GND or by a high-to-low transition on the V_PPinput. Erase, Erase Suspend/Resume,

Program Suspend/Resume and Read Reset commands will not work while in this

mode; if entered they will result in data being programmed into the device. It is not rec-

ommended that the six-byte code reside in the software of the final product but only

exist in external programming code.

Rev. 3366B–FLASH–8/03

12 3 4 5 6 7...30

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与AT49BV640T-85TJ相关器件

型号	品牌	获取价格	描述	数据表
AT49BV6416	ATMEL	获取价格	64-megabit (4M x 16) Page Mode 2.7-volt Flash Memory
AT49BV6416(T)	ETC	获取价格	AT49BV6416(T)/BN6416(T) Advance Information [Updated 5/03. 38 Pages] 64M bit. 2.7-Volt Bur
AT49BV6416-70TI	ATMEL	获取价格	64-megabit (4M x 16) Page Mode 2.7-volt Flash Memory
AT49BV6416-70TU	ATMEL	获取价格	64-megabit (4M x 16) Page Mode 2.7-volt Flash Memory
AT49BV6416-85CI	ATMEL	获取价格	Flash, 4MX16, 85ns, CBGA55, 8 X 11 MM, 1 MM HEIGHT, 0.75 MM PITCH, CERAMIC, BGA-55
AT49BV6416-85TI	ATMEL	获取价格	Flash, 4MX16, 85ns, PDSO48, 12 X 20 MM, PLASTIC, MO-142DD, TSOP1-48
AT49BV6416-85TU	ATMEL	获取价格	Flash, 4MX16, 85ns, PDSO48, 12 X 20 MM, PLASTIC, MO-142DD, TSOP1-48
AT49BV6416C	ATMEL	获取价格	64-megabit (4M x 16) Page Mode 2.7-volt Flash Memory
AT49BV6416C-70CI	ATMEL	获取价格	64-megabit (4M x 16) Page Mode 2.7-volt Flash Memory
AT49BV6416CT	ATMEL	获取价格	64-megabit (4M x 16) Page Mode 2.7-volt Flash Memory

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