欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: HY29F002TC-55
廠商: HYNIX SEMICONDUCTOR INC
元件分類: DRAM
英文描述: 2 Megabit (256K x 8), 5 Volt-only, Flash Memory
中文描述: 256K X 8 FLASH 5V PROM, 55 ns, PQCC32
封裝: PLASTIC, LCC-32
文件頁數: 2/38頁
文件大?。?/td> 381K
代理商: HY29F002TC-55
2
Rev. 4.1/May 01
HY29F002T
BLOCK DIAGRAM
STATE
CONTROL
WE#
CE#
OE#
COMMAND
REGISTER
DQ[7:0]
V
CC
DETECTOR
TIMER
ERASE VOLTAGE
GENERATOR AND
SECTOR SWITCHES
PROGRAM
VOLTAGE
GENERATOR
A
X-DECODER
Y-DECODER
2 MBIT
FLASH
MEMORY
ARRAY
(7 Sectors)
Y-GATING
DATA LATCH
I/O BUFFERS
I/O CONTROL
DQ[7:0]
A[17:0]
ELECTRONIC
ID
V
CC
V
SS
RESET#
HY29F002T has separate chip enable (CE#), write
enable (WE#) and output enable (OE#) controls.
The device is compatible with the JEDEC single
power-supply Flash command set standard. Com-
mands are written to the command register using
standard microprocessor write timings, from where
they are routed to an internal state-machine that
controls the erase and programming circuits.
Device programming is performed a byte at a time
by executing the four-cycle Program Command.
This initiates an internal algorithm that automati-
cally times the program pulse widths and verifies
proper cell margin.
The HY29F002T
s sector erase architecture allows
any number of array sectors to be erased and re-
programmed without affecting the data contents
of other sectors. Device erasure is initiated by
executing the Erase Command. This initiates an
internal algorithm that automatically preprograms
the array (if it is not already programmed) before
executing the erase operation. During erase
cycles, the device automatically times the erase
pulse widths and verifies proper cell margin.
To protect data in the device from accidental or
unauthorized attempts to program or erase the
device while it is in the system (e.g., by a virus),
the device has a Sector Protect function which
hardware write protects selected sectors. The
sector protect and unprotect features can be en-
abled in a PROM programmer. Temporary Sec-
tor Unprotect, which requires a high voltage, al-
lows in-system erasure and code changes in pre-
viously protected sectors.
Erase Suspend enables the user to put erase on
hold for any period of time to read data from, or
program data to, any sector that is not selected
for erasure. True background erase can thus be
achieved. The device is fully erased when shipped
from the factory.
Addresses and data needed for the programming
and erase operations are internally latched during
write cycles, and the host system can detect
completion of a program or erase operation by
reading the DQ[7] (Data# Polling) and DQ[6]
(toggle) status bits. Reading data from the device
is similar to reading from SRAM or EPROM de-
vices. Hardware data protection measures include
a low V
CC
detector that automatically inhibits write
operations during power transitions.
The host can place the device into the standby
mode. Power consumption is greatly reduced in
this mode.
相關PDF資料
PDF描述
HY29F002T 2 Megabit (256K x 8), 5 Volt-only, Flash Memory
HY29F002TC-90 2 Megabit (256K x 8), 5 Volt-only, Flash Memory
HY29F002TT-45 2 Megabit (256K x 8), 5 Volt-only, Flash Memory
HY29F002TT-55 2 Megabit (256K x 8), 5 Volt-only, Flash Memory
HY29F002TT-70 2 Megabit (256K x 8), 5 Volt-only, Flash Memory
相關代理商/技術參數
參數描述
HY29F002TC-55E 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM
HY29F002TC-55I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM
HY29F002TC-70 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:2 Megabit (256K x 8), 5 Volt-only, Flash Memory
HY29F002TC-70E 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM
HY29F002TC-70I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM
主站蜘蛛池模板: 英山县| 阿尔山市| 西峡县| 镇宁| 铁力市| 南开区| 奇台县| 南充市| 班玛县| 昌邑市| 巴林左旗| 宝坻区| 阆中市| 嘉义市| 扶沟县| 宾川县| 泰宁县| 株洲市| 西吉县| 平陆县| 资溪县| 青河县| 佛学| 双辽市| 东港市| 淳安县| 栖霞市| 茶陵县| 静安区| 泰顺县| 张北县| 堆龙德庆县| 沈阳市| 房产| 新田县| 枞阳县| 天镇县| 西畴县| 黄山市| 织金县| 绥棱县|