參數(shù)資料
型號(hào)： M29W320DB7AN6
廠商： NUMONYX
元件分類： PROM
英文描述： 2M X 16 FLASH 3V PROM, 70 ns, PDSO48
封裝： 12 X 20 MM, PLASTIC, TSOP-48
文件頁(yè)數(shù)： 8/56頁(yè)
文件大?。?/td> 1125K
代理商： M29W320DB7AN6
Bus operations
M29W320DT, M29W320DB
16/56
3.6
Special bus operations
Additional bus operations can be performed to read the Electronic Signature and also to
apply and remove Block Protection. These bus operations are intended for use by
programming equipment and are not usually used in applications. They require VID to be
applied to some pins.
3.6.1
Electronic Signature
The memory has two codes, the manufacturer code and the device code, that can be read
to identify the memory. These codes can be read by applying the signals listed in Table 2
and Table 3, Bus Operations.
3.6.2
Block Protect and Chip Unprotect
Each block can be separately protected against accidental Program or Erase. The whole
chip can be unprotected to allow the data inside the blocks to be changed.
Block Protect and Chip Unprotect operations are described in Appendix C: Block Protection.
Table 2.
Bus Operations, BYTE = VIL
(1)
Operation
E
G
W
Address Inputs
DQ15A–1, A0-A20
Data Inputs/Outputs
DQ14-DQ8
DQ7-DQ0
Bus Read
VIL
VIH
Cell Address
Hi-Z
Data Output
Bus Write
VIL
VIH
VIL
Command Address
Hi-Z
Data Input
Output Disable
X
VIH
X
Hi-Z
Standby
VIH
X
Hi-Z
Read Manufacturer
Code
VIL
VIH
A0 = VIL, A1 = VIL, A9 = VID,
Others VIL or VIH
Hi-Z
20h
Read Device Code
VIL
VIH
A0 = VIH, A1 = VIL,
A9 = VID, Others VIL or VIH
Hi-Z
CAh (M29W320DT)
CBh (M29W320DB)
1. X = VIL or VIH.
Table 3.
Bus Operations, BYTE = VIH
(1)
Operation
E
G
W
Address Inputs
A0-A20
Data Inputs/Outputs
DQ15A–1, DQ14-DQ0
Bus Read
VIL
VIH
Cell Address
Data Output
Bus Write
VIL
VIH
VIL
Command Address
Data Input
Output Disable
X
VIH
X
Hi-Z
Standby
VIH
X
Hi-Z
Read Manufacturer
Code
VIL
VIH
A0 = VIL, A1 = VIL, A9 = VID,
Others VIL or VIH
0020h
Read Device Code
VIL
VIH
A0 = VIH, A1 = VIL, A9 = VID,
Others VIL or VIH
22CAh (M29W320DT)
22CBh (M29W320DB)
1. X = VIL or VIH.
相關(guān)PDF資料
PDF描述
M30L40C-E3/4W 15 A, 40 V, SILICON, RECTIFIER DIODE, TO-220AB
M31012ABMNFREQ VCXO, CLOCK, 150 MHz - 1400 MHz, CMOS OUTPUT
M31002ABPNFREQ VCXO, CLOCK, 150 MHz - 1400 MHz, PECL OUTPUT
M31002BSLNFREQ VCXO, CLOCK, 150 MHz - 1400 MHz, LVDS OUTPUT
M31022AGPNFREQ VCXO, CLOCK, 150 MHz - 1400 MHz, PECL OUTPUT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M29W320DB7AN6E 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Trays 制造商:Micron Technology Inc 功能描述:IC FLASH 32MBIT 70NS 48TSOP
M29W320DB7AN6F 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Tape and Reel
M29W320DB7AN6F TR 制造商:Micron Technology Inc 功能描述:IC FLASH 32MBIT 70NS 48TSOP
M29W320DB7AZA3F 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Tape and Reel
M29W320DB7AZA6E 制造商:Micron Technology Inc 功能描述:32MB 2MX16 NOR FLASH PLASTIC IND TEMP BOTTOM PBF TFBGA 3.0V - Trays 制造商:Micron Technology Inc 功能描述:IC FLASH 32MBIT 70NS 63TFBGA
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