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参数资料
| 型号： | AT89S4D12 |
| 厂商： | Atmel Corp. |
| 英文描述： | 8-Bit Microcontroller with 132K Bytes Flash Data Memory |
| 中文描述： | 8位132K章字节的闪存数据存储器微控制器 |
| 文件页数： | 10/13页 |
| 文件大小： | 120K |
| 代理商： | AT89S4D12 |
AT89S4D12
4-290
Once the bytes of a sector are loaded into the device, they
are simultaneously programmed during the self-timed pro-
gramming cycle (t
WC
). After the first data byte has been
loaded into the device, successive bytes need to be
entered within 300-
μ
s time intervals. If a Page Write
instruction is not detected in 300-
μ
s after the last write
instruction, the load period will end and the internal pro-
gramming cycle will start.
Address bits A7 - A11 and A7 - A16 specify the sector
address of the Code and Data memory arrays, respec-
tively. The valid sector address must be entered during
each write instruction. Address bits A0 - A6 specify the byte
address within the sector. The bytes may be loaded in any
order, sequential loading is not required. Once a program-
ming operation has been initiated, and for a duration of typ-
ically 5 ms, a read operation will effectively be a polling
operation.
Program Verify
If lock bits LB1 and LB2 have not been programmed, the
programmed Code and Data byte can be read back via
serial output pin SDO. The state of the lock bits can only be
verified indirectly by observing that the lock bit features are
enabled.
Serial Programming Instruction Set
Notes:
1. A16:A0 = Memory byte address
2. ‘DDDDDDDD’ = Data input at pin SDI or data output
at pin SDO.
3. ‘x’ = Don’t care.
Instruction
Format
Operation
Byte 1
Byte 2
Byte 3
Byte 4
Programming
Enable
10101100
01010011
11111111
11111111
Enable Serial
Programming
after RST goes high.
Chip Erase
10101100
10000000
xxxxxxxx
xxxxxxxx
Chip erase both 128K &
4K
memory arrays.
Read Code
Memory
0010000x
A
A
A
A
A
A
A
A
A
A
A
A
DDDDDDDD
Read data at pin SDO for
Code memory at
address
A11:A0.
Page Write Code
Memory
0100000x
A
A
A
A
A
A
A
A
A
A
A
A
DDDDDDDD
Write data at pin SDI for
Code
memory at address
A11:A0.
Read Data
Memory
1010000
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
DDDDDDDD
Read data at pin SDO for
Data memory at address
A16:A0.
Page Write Data
Memory
1100000
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
DDDDDDDD
Write data at pin SDI for
Data
memory at address
A16:A0.
Program Lock Bits
10101100
111000
xxxxxxxx
xxxxxxxx
Set LB1, LB2 = ‘0’ to
program
lock bits.
Read Signature
0011000x
xxxxxxxx
A
A
A
A
A
A
A
DDDDDDDD
Read device I.D. at
address
A6:A0.
A
A
L
L
xxxx
xxxx
x
相关PDF资料 |
PDF描述 |
|---|---|
| AT89S4D12-12JC | 8-Bit Microcontroller with 132K Bytes Flash Data Memory |
| AT89S4D12-12JI | 8-Bit Microcontroller with 132K Bytes Flash Data Memory |
| AT89S4D12-12RC | 8-Bit Microcontroller with 132K Bytes Flash Data Memory |
| AT89S4D12-12RI | 8-Bit Microcontroller with 132K Bytes Flash Data Memory |
| AT89S51-24 | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT89S4D12-12RC | 功能描述:8位微控制器 -MCU Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| AT89S4D12-12RI | 功能描述:8位微控制器 -MCU Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| AT89S51-24AC | 功能描述:8位微控制器 -MCU 4K ISP FLASH 2.7 TO 5.5V - 24 MHZ RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| AT89S51-24AI | 功能描述:8位微控制器 -MCU 4K ISP FLASH 2.7 TO 5.5V - 24 MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| AT89S51-24AU | 功能描述:8位微控制器 -MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
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