参数资料
型号: E28F400BX-B80
厂商: INTEL CORP
元件分类: PROM
英文描述: 4-MBIT (256K X 16, 512K X 8) BOOT BLOCK FLASH MEMORY FAMILY
中文描述: 256K X 16 FLASH 12V PROM, 80 ns, PDSO56
封装: 20 X 14 MM, TSOP-56
文件页数: 9/50页
文件大小: 449K
代理商: E28F400BX-B80
28F400BX-TB 28F004BX-TB
Table 1 Bus Operations for WORD-WIDE Mode (BYTE
e
VIH)
Mode
Notes
RP
CE
OE
WE
A9
A0
VPP
DQ0–15
Read
1 2
VIH
VIL
VIH
XX
X
DOUT
Output Disable
VIH
VIL
VIH
X
High Z
Standby
VIH
X
High Z
Deep Power-Down
9
VIL
X
High Z
Intelligent Identifier (Mfr)
3 4
VIH
VIL
VIH
VID
VIL
X
0089H
Intelligent Identifier (Device)
3 4 5
VIH
VIL
VIH
VID
VIH
X
4470H
4471H
Write
6 7 8
VIH
VIL
VIH
VIL
XX
X
DIN
Table 2 Bus Operations for BYTE-WIDE Mode (BYTE
e
VIL)
Mode
Notes
RP
CE
OE
WE
A9
A0
Ab1
VPP
DQ0–7
DQ8–14
Read
1 2 3
VIH
VIL
VIH
XX
X
DOUT
High Z
Output Disable
VIH
VIL
VIH
X
High Z
Standby
VIH
X
High Z
Deep Power-Down
9
VIL
X
High Z
Intelligent
4
VIH
VIL
VIH
VID
VIL
X
89H
High Z
Identifier (Mfr)
Intelligent
4 5
VIH
VIL
VIH
VID
VIH
X
70H
High Z
Identifier (Device)
71H
Write
6 7 8
VIH
VIL
VIH
VIL
XX
X
DIN
High Z
NOTES
1 Refer to DC Characteristics
2 X can be VL VIH for control pins and addresses VPPL or VPPH for VPP
3 See DC Characteristics for VPPL VPPH VHH VID voltages
4 Manufacturer and Device codes may also be accessed via a CUI write sequence A1–A17 e X
5 Device ID e 4470H for 28F400BX-T and 4471H for 28F400BX-B
6 Refer to Table 4 for valid DIN during a write operation
7 Command writes for Block Erase or WordByte Write are only executed when VPP e VPPH
8 To write or erase the boot block hold RP
at VHH
9 RP
must be at GND g02V to meet the 12 mA maximum deep power-down current
17
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