參數(shù)資料
型號(hào)： S29AL004D90SFI013
廠商： SPANSION LLC
元件分類： PROM
英文描述： 256K X 16 FLASH 3V PROM, 90 ns, PDSO48
封裝： LEAD FREE, MO-180AA, SO-44
文件頁數(shù)： 10/53頁
文件大小： 1402K
代理商： S29AL004D90SFI013
18
S29AL004D
S29AL004D_00_A0 November 12, 2004
The system must issue the reset command to re-enable the device for reading
array data if DQ5 goes high, or while in the autoselect mode. See the “Reset Com-
mand” section, next.
section for more information. The Read Operations table provides the read pa-
rameters, and 13 shows the timing diagram.
Reset Command
Writing the reset command to the device resets the device to reading array data.
Address bits are don’t care for this command.
The reset command may be written between the sequence cycles in an erase
command sequence before erasing begins. This resets the device to reading array
data. Once erasure begins, however, the device ignores reset commands until the
operation is complete.
The reset command may be written between the sequence cycles in a program
command sequence before programming begins. This resets the device to read-
ing array data (also applies to programming in Erase Suspend mode). Once
programming begins, however, the device ignores reset commands until the op-
eration is complete.
The reset command may be written between the sequence cycles in an autoselect
command sequence. Once in the autoselect mode, the reset command must be
written to return to reading array data (also applies to autoselect during Erase
Suspend).
If DQ5 goes high during a program or erase operation, writing the reset command
returns the device to reading array data (also applies during Erase Suspend).
Autoselect Command Sequence
The autoselect command sequence allows the host system to access the manu-
facturer and devices codes, and determine whether or not a sector is protected.
Table 5 shows the address and data requirements. This method is an alternative
to that shown in Table 4, which is intended for PROM programmers and requires
VID on address bit A9.
The autoselect command sequence is initiated by writing two unlock cycles, fol-
lowed by the autoselect command. The device then enters the autoselect mode,
and the system may read at any address any number of times, without initiating
another command sequence.
A read cycle at address XX00h retrieves the manufacturer code. A read cycle at
address XX01h in word mode (or 02h in byte mode) returns the device code. A
read cycle containing a sector address (SA) and the address 02h in word mode
(or 04h in byte mode) returns 01h if that sector is protected, or 00h if it is un-
protected. Refer to Tables 2 and 3 for valid sector addresses.
The system must write the reset command to exit the autoselect mode and return
to reading array data.
Word/Byte Program Command Sequence
The system may program the device by word or byte, depending on the state of
the BYTE# pin. Programming is a four-bus-cycle operation. The program com-
mand sequence is initiated by writing two unlock write cycles, followed by the
program set-up command. The program address and data are written next, which
相關(guān)PDF資料
PDF描述
S29AL008D90MAIR23 8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL008D90MAN012 Ceramic Chip Capacitors / High Voltage; Capacitance [nom]: 150pF; Working Voltage (Vdc)[max]: 500V; Capacitance Tolerance: +/-1%; Dielectric: Multilayer Ceramic; Temperature Coefficient: C0G (NP0); Lead Style: Surface Mount Chip; Lead Dimensions: 0805; Termination: Tin (Sn) Plated Nickel Barrier; Body Dimensions: 0.079" x 0.049"; Container: Bulk; Features: High Voltage; Unmarked
S29AL008D90MFNR21 8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL008D90MFNR22 8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL008D90MFNR23 8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29AL004D90TAI010 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90TAI012 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90TAI013 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90TAI020 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90TAI022 制造商:SPANSION 制造商全稱:SPANSION 功能描述:4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*