Datasheet.kr   

AT49LV161T 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT49LV161T은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AT49LV161T 자료 제공

부품번호 AT49LV161T 기능
기능 (AT49xV160 / AT49xV161) Flash Memory
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


AT49LV161T 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 29 페이지수

미리보기를 사용할 수 없습니다

AT49LV161T 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Features
Single Voltage Read/Write Operation: 2.65V to 3.3V (BV), 3.0V to 3.6V (LV)
Access Time – 70 ns
Sector Erase Architecture
– Thirty-one 32K Word (64K Bytes) Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout
Fast Word Program Time – 20 µs
Fast Sector Erase Time – 300 ms
Suspend/Resume Feature for Erase and Program
– Supports Reading and Programming from Any Sector by Suspending Erase of a
Different Sector
– Supports Reading Any Byte/Word by Suspending Programming of Any Other
Byte/Word
Low-power Operation
– 30 mA Active
– 10 µA Standby
Data Polling, Toggle Bit, Ready/Busy for End of Program Detection
VPP Pin for Write Protection and Accelerated Program/Erase Operations
RESET Input for Device Initialization
Sector Lockdown Support
TSOP and CBGA Package Options
Top or Bottom Boot Block Configuration Available
128-bit Protection Register
Description
The AT49BV/LV16X(T) is a 3.0-volt 16-megabit Flash memory organized as 1,048,576
words of 16 bits each or 2,097,152 bytes of 8 bits each. The x16 data appears on I/O0
- I/O15; the x8 data appears on I/O0 - I/O7. The memory is divided into 39 sectors for
erase operations. The device is offered in a 48-lead TSOP, 45-ball and 48-ball CBGA
packages. The device has CE and OE control signals to avoid any bus contention.
This device can be read or reprogrammed using a single 2.65V power supply, making
it ideally suited for in-system programming.
Pin Configurations
Pin Name
A0 - A19
CE
OE
WE
RESET
RDY/BUSY
VPP
I/O0 - I/O14
I/O15 (A-1)
BYTE
NC
VCCQ
Function
Addresses
Chip Enable
Output Enable
Write Enable
Reset
READY/BUSY Output
Write Protection and Power Supply for Accelerated Program/Erase
Operations
Data Inputs/Outputs
I/O15 (Data Input/Output, Word Mode)
A-1 (LSB Address Input, Byte Mode)
Selects Byte or Word Mode
No Connect
Output Power Supply
16-megabit
(1M x 16/2M x 8)
3-volt Only
Flash Memory
AT49BV160
AT49LV160
AT49BV160T
AT49BV161
AT49LV161
AT49BV161T
AT49LV161T
Rev. 1427L–FLASH–02/03
1




AT49LV161T pdf, 반도체, 판매, 대치품
Block Diagram
I/O0 - I/O15/A-1
OUTPUT
BUFFER
INPUT
BUFFER
A0 - A19
INPUT
BUFFER
ADDRESS
LATCH
Y-DECODER
X-DECODER
IDENTIFIER
REGISTER
STATUS
REGISTER
DATA
COMPARATOR
Y-GATING
MAIN
MEMORY
COMMAND
REGISTER
WRITE STATE
MACHINE
PROGRAM/ERASE
VOLTAGE SWITCH
CE
WE
OE
RESET
BYTE
RDY/BUSY
VPP
VCC
GND
4 AT49BV/LV160(T)/161(T)
1427L–FLASH–02/03

4페이지










AT49LV161T 전자부품, 판매, 대치품
1427L–FLASH–02/03
AT49BV/LV160(T)/161(T)
If the status bit configuration register is set to a “01”, the I/O7 status bit will be low while the
device is actively programming or erasing data. I/O7 will go high when the device has com-
pleted a program or erase operation. Once I/O7 has gone high, status information on the other
pins can be checked.
The Data Polling status bit must be used in conjunction with the erase/program and VPP status
bit as shown in the algorithm in Figures 1 and 2 on page 10.
TOGGLE BIT: In addition to Data Polling, the AT49BV/LV16X(T) provides another method for
determining the end of a program or erase cycle. During a program or erase operation, suc-
cessive attempts to read data from the memory will result in I/O6 toggling between one and
zero. Once the program cycle has completed, I/O6 will stop toggling and valid data will be
read. Examining the toggle bit may begin at any time during a program cycle. Please see “Sta-
tus Bit Table” on page 12 for more details.
The toggle bit status bit should be used in conjunction with the erase/program and VPP status
bit as shown in the algorithm in Figures 3 and 4 on page 11.
ERASE/PROGRAM STATUS BIT: The device offers a status bit on I/O5, which indicates
whether the program or erase operation has exceeded a specified internal pulse count limit. If
the status bit is a “1”, the device is unable to verify that an erase or a byte/word program oper-
ation has been successfully performed. The device may also output a “1” on I/O5 if the system
tries to program a “1” to a location that was previously programmed to a “0”. Only an erase
operation can change a “0” back to a “1”. If a program (Sector Erase) command is issued to a
protected sector, the protected sector will not be programmed (erased). The device will go to a
status read mode and the I/O5 status bit will be set high, indicating the program (erase) opera-
tion did not complete as requested. Once the erase/program status bit has been set to a “1”,
the system must write the Product ID Exit command to return to the read mode. The
erase/program status bit is a “0” while the erase or program operation is still in progress.
Please see “Status Bit Table” on page 12 for more details.
VPP STATUS BIT: The AT49BV/LV16X(T) provides a status bit on I/O3, which provides infor-
mation regarding the voltage level of the VPP pin. During a program or erase operation, if the
voltage on the VPP pin is not high enough to perform the desired operation successfully, the
I/O3 status bit will be a “1”. Once the VPP status bit has been set to a “1”, the system must
write the Product ID Exit command to return to the read mode. On the other hand, if the volt-
age level is high enough to perform a program or erase operation successfully, the VPP status
bit will output a “0”. Please see “Status Bit Table” on page 12 for more details.
SECTOR LOCKDOWN: Each sector has a programming lockdown feature. This feature pre-
vents programming of data in the designated sectors once the feature has been enabled.
These sectors can contain secure code that is used to bring up the system. Enabling the lock-
down feature will allow the boot code to stay in the device while data in the rest of the device is
updated. This feature does not have to be activated; any sector’s usage as a write-protected
region is optional to the user.
At power-up or reset, all sectors are unlocked. To activate the lockdown for a specific sector,
the six-bus cycle Sector Lockdown command must be issued. Once a sector has been locked
down, the contents of the sector is read-only and cannot be erased or programmed.
SECTOR LOCKDOWN DETECTION: A software method is available to determine if program-
ming of a sector is locked down. When the device is in the software product identification
mode (see “Software Product Identification Entry/Exit” sections on page 24), a read from
address location 00002H within a sector will show if programming the sector is locked down. If
the data on I/O0 is low, the sector can be programmed; if the data on I/O0 is high, the program
lockdown feature has been enabled and the sector cannot be programmed. The software
product identification exit code should be used to return to standard operation.
7

7페이지


구       성 총 29 페이지수
다운로드[ AT49LV161T.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
AT49LV161

(AT49xV160 / AT49xV161) Flash Memory

ATMEL Corporation
ATMEL Corporation
AT49LV1614A

16-megabit 1M x 16/2M x 8 3-volt Only Flash Memory

ATMEL Corporation
ATMEL Corporation

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵