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| 型号： | A28F400BX-B |
| 厂商： | Intel Corp. |
| 英文描述： | 4-MBIT (512K x8) Boot Block Flash Memory(4兆位(512K x8) 引导块闪速存储器) |
| 中文描述： | 4兆位（为512k × 8）开机区块快闪记忆体（4兆位（为512k × 8）引导块闪速存储器） |
| 文件页数： | 21/34页 |
| 文件大小： | 411K |
| 代理商： | A28F400BX-B |
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A28F400BX-T/B
290501–11
Bus
Command
Comments
Operation
Write
Erase
Suspend
Data
e
B0H
Read
Status Register Data.
Toggle OE
Y
or CE
Y
to
update Status Register
Standby
Check SR.7
1
e
Ready
Standby
Check SR.6
1
e
Suspended
Write
Read Array
Data
e
FFH
Read
Read array data from block
other than that being
erased.
Write
Erase Resume
Data
e
D0H
Figure 9. Erase Suspend/Resume Flowchart
3.4 Power Consumption
3.4.1 ACTIVE POWER
With CE
Y
at a logic-low level and RP
Y
at a logic-
high level, the device is placed in the active mode.
The device I
CC
current is a maximum 65 mA at
10 MHz with TTL input signals.
3.4.2 AUTOMATIC POWER SAVINGS
Automatic Power Savings (APS) is a low pwer fea-
ture during active mode of operation. The 4-Mbit
family of products incorporate Power Reduction
Control (PRC) circuitry which basically allows the de-
vice to put itself into a low current state when it is
not being accessed. After data is read from the
memory array, PRC logic controls the device’s pow-
er consumption by entering the APS mode where
maximum I
CC
current is 3 mA and typical I
CC
current
is 1 mA. The device stays in this static state with
outputs valid until a new location is read.
3.4.3 STANDBY POWER
With CE
Y
at a logic-high level (V
IH
), and the CUI in
read mode, the memory is placed in standby mode
where the maximum I
CC
standby current is 100
m
A
with CMOS input signals. The standby operation dis-
ables much of the device’s circuitry and substantially
reduces device power consumption. The outputs
(DQ
[
0:15
]
or DQ
[
0:7
]
) are placed in a high-imped-
ance state independent of the status of the OE
Y
signal. When the 4-Mbit boot block flash family is
deselected during erase or program functions, the
devices will continue to perform the erase or pro-
gram function and consume program or erase active
power until program or erase is completed.
21
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A28F400BX-T | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:4-MBIT 256K x16, 512K x8 BOOT BLOCK FLASH MEMORY FAMILY |
| A28F400BX-T/B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:A28F400BX-T/B |
| A28F5501S | 制造商:General Electric Company 功能描述:OIL FILLED CAPACITOR |
| A28F5502 | 制造商:General Electric Company 功能描述:Film Capacitor |
| A28F5502S | 制造商:General Electric Company 功能描述:CAPACITOR PP FILM 0.5UF 1KV 10% CASE 制造商:GE 功能描述:CAPACITOR PP FILM 0.5UF, 1KV, 10%, CASE 制造商:General Electric Company 功能描述:CAPACITOR PP FILM 0.5UF, 1KV, 10%, CASE; Capacitance:0.5F; Capacitance Tolerance: 10%; Capacitor Dielectric Type:Polypropylene (PP); Voltage Rating:1000V; Life Time @ Temperature:40000 hours @ 70C; Capacitor Case Style:CAN 制造商:General Electric Company 功能描述:OIL FILLED CAPACITOR |
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