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参数资料
| 型号： | AT29C256 |
| 厂商： | Atmel Corp. |
| 英文描述： | 256K 32K x 8 5-volt Only CMOS Flash Memory |
| 中文描述： | 256K 32K的× 8 5伏只有闪存的CMOS |
| 文件页数： | 10/17页 |
| 文件大小： | 343K |
| 代理商： | AT29C256 |
10
AT29C256
0046P–FLASH–10/04
Software Data Protection
Enable Algorithm
(1)
Notes:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Data Protect state will be re-activated at end of pro-
gram cycle.
3. Data Protect state will be deactivated at end of pro-
gram period.
4. 64 bytes of data
MUST BE
loaded.
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA A0
TO
ADDRESS 5555
LOAD DATA
TO
PAGE (64 BYTES)
(4)
WRITES ENABLED
(2)
ENTER DATA
PROTECT STATE
Software Data Protection
Disable Algorithm
(1)
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 80
TO
ADDRESS 5555
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 20
TO
ADDRESS 5555
LOAD DATA
TO
PAGE (64 BYTES)
(4)
EXIT DATA
PROTECT STATE
(3)
Software Protected Program Cycle Waveform
(1)(2)(3)
Notes:
1. A6 through A14 must specify the page address during each high-to-low transition of WE (or CE) after the software code has
been entered.
2. OE must be high when WE and CE are both low.
3. All bytes that are not loaded within the page being programmed will be indeterminate.
相关PDF资料 |
PDF描述 |
|---|---|
| AT29C256-12 | High Speed CMOS Logic 8-Bit Shift Register with Input Storage 16-PDIP -55 to 125 |
| AT29C256-12JC | High Speed CMOS Logic 8-Bit Shift Register with Input Storage 16-PDIP -55 to 125 |
| AT29C256-12JI | High Speed CMOS Logic 8-Bit Shift Register with Input Storage 16-SOIC -55 to 125 |
| AT29C256-70TI | High Speed CMOS Logic 4-by-4 Register File 16-SOIC -55 to 125 |
| AT29C256-90JC | High Speed CMOS Logic 4-by-4 Register File 16-SOIC -55 to 125 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT29C256-12 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:256K 32K x 8 5-volt Only CMOS Flash Memory |
| AT29C256-12DC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 Flash EEPROM |
| AT29C256-12DI | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 Flash EEPROM |
| AT29C256-12DM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 Flash EEPROM |
| AT29C256-12DM/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 Flash EEPROM |
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