Mode 1, no lock protection B1 = 0, B2 = 1
參數(shù)資料
型號: AT89LS51-16AC
廠商: Atmel
文件頁數(shù): 13/31頁
文件大?。?/td> 0K
描述: IC MCU 4K FLASH LV 16MHZ 44-TQFP
標(biāo)準(zhǔn)包裝: 160
系列: 89LS
核心處理器: 8051
芯體尺寸: 8-位
速度: 16MHz
連通性: UART/USART
外圍設(shè)備: WDT
輸入/輸出數(shù): 32
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 4 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 44-TQFP
包裝: 托盤
20
3053C–MICRO–6/08
AT89LS51
Note:
1. B1 = 0, B2 = 0
Mode 1, no lock protection
B1 = 0, B2 = 1
Mode 2, lock bit 1 activated
B1 = 1, B2 = 0
Mode 3, lock bit 2 activated
B1 = 1, B1 = 1
Mode 4, lock bit 3 activated
After Reset signal is high, SCK should be low for at least 64 system clocks before it goes high to clock in the enable data
bytes. No pulsing of Reset signal is necessary. SCK should be no faster than 1/16 of the system clock at XTAL1.
For Page Read/Write, the data always starts from byte 0 to 255. After the command byte and upper address byte are
latched, each byte thereafter is treated as data until all 256 bytes are shifted in/out. Then the next instruction will be ready
to be decoded.
Table 19-1.
Serial Programming Instruction Set
Instruction
Instruction Format
Operation
Byte 1
Byte 2
Byte 3
Byte 4
Programming Enable
1010 1100
0101 0011
xxxx xxxx
0110 1001
(Output on MISO)
Enable Serial Programming
while RST is high
Chip Erase
1010 1100
100x xxxx
xxxx xxxx
Chip Erase Flash memory
array
Read Program Memory
(Byte Mode)
0010 0000
xxxx
Read data from Program
memory in the byte mode
Write Program Memory
(Byte Mode)
0100 0000
xxxx
Write data to Program
memory in the byte mode
Write Lock Bits(1)
1010 1100
1110 00
xxxx xxxx
Write Lock bits (see Note 1)
Read Lock Bits
0010 0100
xxxx
xxxx xxxx
xxx
xx
Read back current status of
the lock bits (a programmed
lock bit reads back as a “1”)
Read Signature Bytes
0010 1000
xxxx
xxx xxx0
Signature Byte
Read Signature Byte
Read Program Memory
(Page Mode)
0011 0000
xxxx
Byte 0
Byte 1...
Byte 255
Read data from Program
memory in the Page Mode
(256 bytes)
Write Program Memory
(Page Mode)
0101 0000
xxxx
Byte 0
Byte 1...
Byte 255
Write data to Program
memory in the Page Mode
(256 bytes)
} Eachofthelockbitmodesneedstobeactivatedsequentially
before Mode 4 can be executed.
D7 D6 D5 D4
D3 D2 D1 D0
A7 A6 A5 A4
A3 A2 A1 A0
A11 A10
A9 A8
B2
B1
A11 A10
A9 A8
A7 A6 A5 A4
A3 A2 A1 A0
D7 D6 D5 D4
D3 D2 D1 D0
LB3
LB
2
LB1
A11 A10
A9 A8
A11 A1
0
A9 A8
A7
A11 A10 A9 A8
相關(guān)PDF資料
PDF描述
22FMN-SMT-A-TF CONN FMN HOUSING 22POS SIDE SMD
21FMN-SMT-A-TF CONN FMN HOUSING 21POS SIDE SMD
ATTINY28V-1MI IC AVR MCU 2K 1.8V 1.2MHZ 32-QFN
ATTINY28V-1MC IC AVR MCU 2K 1.8V 1.2MHZ 32-QFN
ATTINY28L-4MI IC AVR MCU 2K 2.7V 4MHZ IND32QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT89LS51-16AI 功能描述:8位微控制器 -MCU LOW VOLTAGE 4K ISP FLASH - 16MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LS51-16AU 功能描述:8位微控制器 -MCU LOW VOLTAGE 4K ISP FLASH-16MHZ 4-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LS51-16JC 功能描述:8位微控制器 -MCU LOW VOLTAGE 4K ISP FLASH - 16MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LS51-16JI 功能描述:8位微控制器 -MCU LOW VOLTAGE 4K ISP FLASH - 16MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LS51-16JU 功能描述:8位微控制器 -MCU LOW VOLTAGE 4K ISP FLASH-16MHZ 4-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT