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参数资料
| 型号： | AM29F040B-70FCB |
| 厂商： | ADVANCED MICRO DEVICES INC |
| 元件分类： | PROM |
| 英文描述： | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| 中文描述： | 512K X 8 FLASH 5V PROM, 70 ns, PDSO32 |
| 封装： | REVERSE, TSOP-32 |
| 文件页数： | 28/30页 |
| 文件大小： | 417K |
| 代理商： | AM29F040B-70FCB |
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Am29F040B
7
outputs are placed in the high impedance state, inde-
pendent of the OE# input.
The device enters the CMOS standby mode when the
CE# pin is held at VCC ± 0.5 V. (Note that this is a more
restricted voltage range than VIH.) The device enters
the TTL standby mode when CE# is held at VIH. The
device requires the standard access time (tCE) before
it is ready to read data.
If the device is deselected during erasure or program-
ming, the device draws active current until the
operation is completed.
ICC3 in the DC Characteristics tables represents the
standby current specification.
Output Disable Mode
When the OE# input is at VIH, output from the device is
disabled. The output pins are placed in the high imped-
ance state.
Table 2.
Sector Addresses Table
Note: All sectors are 64 Kbytes in size.
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equipment
to automatically match a device to be programmed with
its corresponding programming algorithm. However,
the autoselect codes can also be accessed in-system
through the command register.
When using programming equipment, the autoselect
mode requires VID (11.5 V to 12.5 V) on address pin
A9. Address pins A6, A1, and A0 must be as shown in
Autoselect Codes (High Voltage Method) table. In ad-
dition, when verifying sector protection, the sector
address must appear on the appropriate highest order
address bits. Refer to the corresponding Sector Ad-
dress Tables. The Command Definitions table shows
the remaining address bits that are don’t care. When all
necessary bits have been set as required, the program-
ming equipment may then read the corresponding
identifier code on DQ7–DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in the Command Defini-
tions table. This method does not require VID. See
“Command Definitions” for details on using the autose-
lect mode.
Table 3.
Am29F040B Autoselect Codes (High Voltage Method)
Sector
A18
A17
A16
Address Range
SA0
0
00000h–0FFFFh
SA1
0
1
10000h–1FFFFh
SA2
0
1
0
20000h–2FFFFh
SA3
0
1
30000h–3FFFFh
SA4
1
0
40000h–4FFFFh
SA5
1
0
1
50000h–5FFFFh
SA6
1
0
60000h–6FFFFh
SA7
1
70000h–7FFFFh
Description
A18–A16
A15–A10
A9
A8–A7
A6
A5–A2
A1
A0
Identifier Code on
DQ7-DQ0
Manufacturer ID: AMD
X
VID
XVIL
VIL
01h
Device ID: Am29F040B
X
VID
XVIL
VIH
A4h
Sector Protection
Verification
Sector
Address
XVID
XVIL
XVIH
VIL
01h (protected)
00h (unprotected)
相关PDF资料 |
PDF描述 |
|---|---|
| AM29F040B-70FEB | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| AM29F040B-70FIB | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| AM29F040B-70JCB | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| AM29F040B-70JEB | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| AM29F040B-70JIB | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AM29F040B-70JC | 制造商:Advanced Micro Devices 功能描述:NOR Flash, 512K x 8, 32 Pin, Plastic, PLCC |
| AM29F040B-70JD | 制造商:Spansion 功能描述:IC SM FLASH 5V 4MB |
| AM29F040B-70JD | 制造商:Spansion 功能描述:FLASH MEMORY IC |
| AM29F040B-70JF | 功能描述:闪存 4M (512Kx8) 70ns 5v Parallel NOR 闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AM29F040B-70JF | 制造商:Spansion 功能描述:FLASH MEMORY IC |
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