參數(shù)資料
型號: AT90S8515-8AC
廠商: Atmel
文件頁數(shù): 71/112頁
文件大?。?/td> 0K
描述: IC MCU 8K FLSH 8MHZ 44TQFP
標(biāo)準(zhǔn)包裝: 160
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: 44-TQFP
包裝: 托盤
61
AT90S8515
0841G–09/01
Default, the external SRAM access, is a 3-cycle scheme as depicted in Figure 43. When
one extra wait state is needed in the access cycle, set the SRW bit (one) in the MCUCR
register. The resulting access scheme is shown in Figure 44. In both cases, note that
PORTA is data bus in one cycle only. As soon as the data access finishes, PORTA
becomes a low-order address bus again.
For details of the timing for the SRAM interface, please refer to Figure 68, Table 37,
view” on page 7 for a description of the memory map, including address space for
SRAM.
Figure 42. External SRAM Connected to the AVR
Figure 43. External Data SRAM Memory Cycles without Wait State
D[7:0]
A[7:0]
A[15:8]
RD
WR
SRAM
DQ
G
Port A
ALE
Port C
RD
WR
AVR
System Clock
ALE
WR
RD
Data/Address [7..0]
Address [15..8]
Address
T1
T2
T3
Prev. Address
Data
Wr
it
e
R
e
a
d
Address
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AT90S8515-8AI 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 8K bytes In-System Programmable Flash
AT90S8515-8JC 功能描述:8位微控制器 -MCU 8K Flash 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
AT90S8515-8JI 功能描述:8位微控制器 -MCU 8K Flash 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
AT90S8515-8PC 功能描述:8位微控制器 -MCU 8K Flash 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
AT90S8515-8PI 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes In-System Programmable Flash