参数资料
型号: AT28C64B-20PC
厂商: ATMEL CORP
元件分类: DRAM
英文描述: 8-Bit Shift Registers With Output Registers 16-SOIC -40 to 85
中文描述: 8K X 8 EEPROM 5V, 200 ns, PDIP28
封装: 0.600 INCH, PLASTIC, MS-011AB, DIP-28
文件页数: 8/13页
文件大小: 317K
代理商: AT28C64B-20PC
AT28C64B
8
Software Data Protection
Enable Algorithm
(1)
Notes for software program code:
1.
Data Format: I/O7 - I/O0 (Hex);
Address Format: A12 - A0 (Hex).
2.
Write Protect state will be activated at end of
write even if no other data is loaded.
3.
Write Protect state will be deactivated at end of
write period even if no other data is loaded.
4.
1 to 64 bytes of data are loaded.
Software Data Protection
Disable Algorithm
(1)
Software Protected Write Cycle Waveforms
(1)(2)
Notes:
1.
A6 through A12 must specify the same page address during each high to low transition of WE (or CE) after the software
code has been entered.
OE must be high only when WE and CE are both low.
2.
LOAD DATA AA
TO
ADDRESS 1555
LOAD DATA 55
TO
ADDRESS 0AAA
LOAD DATA A0
TO
ADDRESS 1555
LOAD DATA XX
TO
ANY ADDRESS
(4)
LOAD LAST BYTE
TO
LAST ADDRESS
ENTER DATA
PROTECT STATE
WRITES ENABLED
(2)
LOAD DATA AA
TO
ADDRESS 1555
LOAD DATA 55
TO
ADDRESS 0AAA
LOAD DATA 80
TO
ADDRESS 1555
LOAD DATA AA
TO
ADDRESS 1555
LOAD DATA 20
TO
ADDRESS 1555
LOAD DATA XX
TO
ANY ADDRESS
(4)
LOAD LAST BYTE
TO
LAST ADDRESS
LOAD DATA 55
TO
ADDRESS 0AAA
EXIT DATA
PROTECT STATE
(3)
相关PDF资料
PDF描述
AT28C64E-12JC 64K 8K x 8 Battery-Voltage CMOS E2PROM
AT28C64E-12JI 64K 8K x 8 Battery-Voltage CMOS E2PROM
AT28C64E-12PC 64K 8K x 8 Battery-Voltage CMOS E2PROM
AT28C64E-12PI 64K 8K x 8 Battery-Voltage CMOS E2PROM
AT28C64E-12SC 64K 8K x 8 Battery-Voltage CMOS E2PROM
相关代理商/技术参数
参数描述
AT28C64B-20PI 功能描述:电可擦除可编程只读存储器 DIE WAFER FORM - 200NS IND TEMP RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
AT28C64B-20SC 功能描述:电可擦除可编程只读存储器 DIE WAFER FORM 200NS COM TEMP RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
AT28C64B-20SCSL383 制造商:Atmel Corporation 功能描述:EEPROM Parallel 64K-bit 8K x 8 5V 28-Pin SOIC W T/R
AT28C64B-20SI 功能描述:电可擦除可编程只读存储器 DIE WAFER FORM - 200NS IND TEMP RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
AT28C64B-20TC 功能描述:电可擦除可编程只读存储器 DIE WAFER FORM 200NS COM TEMP RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8