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| 型號： | AT90S8515A-8PC |
| 廠商： | Atmel |
| 文件頁數(shù)： | 89/112頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8K FLSH 8MHZ 40DIP |
| 標(biāo)準(zhǔn)包裝： | 18 |
| 系列： | AVR® 90S |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 8MHz |
| 連通性： | SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲器容量： | 8KB（4K x 16） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 512 x 8 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 6 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 40-DIP（0.600"，15.24mm） |
| 包裝： | 管件 |
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78
AT90S8515
0841G–09/01
Memory
Programming
Program and Data
Memory Lock Bits
The AT90S8515 MCU provides two Lock bits that can be left unprogrammed (“1”) or can
be programmed (“0”) to obtain the additional features listed in Table 25. The Lock bits
can only be erased with the Chip Erase command.
Note:
1. In Parallel Mode, further programming of the Fuse bits is also disabled. Program the
Fuse bits before programming the Lock bits.
Fuse Bits
The AT90S8515 has two Fuse bits, SPIEN and FSTRT.
When the SPIEN Fuse is programmed (“0”), Serial Program and Data Downloading
is enabled. Default value is programmed (“0”).
When the FSTRT Fuse is programmed (“0”), the short start-up time is selected.
Default value is unprogrammed (“1”). Parts with this bit pre-programmed (“0”) can
be delivered on demand.
The Fuse bits are not accessible in Serial Programming Mode. The status of the Fuse
bits is not affected by Chip Erase.
Signature Bytes
All Atmel microcontrollers have a three-byte signature code that identifies the device.
This code can be read in both Serial and Parallel mode. The three bytes reside in a sep-
arate address space.
For the AT90S8515(1) they are:
1.
$000: $1E (indicates manufactured by Atmel)
2.
$001: $93 (indicates 8 KB Flash memory)
3.
$002: $01 (indicates AT90S8515 device when signature byte $001 is $93)
Note:
1. When both Lock bits are programmed (lock mode 3), the signature bytes cannot be
read in Serial Mode. Reading the signature bytes will return: $00, $01 and $02.
Programming the Flash
and EEPROM
Atmel’s AT90S8515 offers 8K bytes of In-System Reprogrammable Flash program
memory and 512 bytes of EEPROM data memory.
The AT90S8515 is shipped with the On-chip Flash program and EEPROM data memory
arrays in the erased state (i.e., contents = $FF) and ready to be programmed. This
device supports a high-voltage (12V) Parallel Programming Mode and a low-voltage
Serial Programming Mode. The +12V is used for programming enable only, and no cur-
rent of significance is drawn by this pin. The Serial Programming Mode provides a
convenient way to download program and data into the AT90S8515 inside the user’s
system.
The program and data memory arrays on the AT90S8515 are programmed byte-by-byte
in either programming mode. For the EEPROM, an auto-erase cycle is provided within
Table 25. Lock Bit Protection Modes
Memory Lock Bits
Protection Type
Mode
LB1
LB2
1
No memory lock features enabled.
2
0
1
Further programming of the Flash and EEPROM is disabled.
3
0
Same as mode 2, and verify is also disabled.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT90S8515A-8PI | 功能描述:IC MCU 8BIT 8KB FLASH 40DIP 制造商:microchip technology 系列:AVR? 90S 包裝:管件 零件狀態(tài):停產(chǎn) 核心處理器:AVR 核心尺寸:8-位 速度:8MHz 連接性:SPI，UART/USART 外設(shè):欠壓檢測/復(fù)位，POR，PWM，WDT I/O 數(shù):32 程序存儲容量:8KB（4K x 16） 程序存儲器類型:閃存 EEPROM 容量:512 x 8 RAM 容量:512 x 8 電壓 - 電源（Vcc/Vdd）:4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:40-DIP（0.600"，15.24mm） 供應(yīng)商器件封裝:40-PDIP 基本零件編號:AT90S8515 標(biāo)準(zhǔn)包裝:18 |
| AT90S8515-JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| AT90S8515-JI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| AT90S8515-PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| AT90S8515-PI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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