參數(shù)資料
型號(hào): ATMEGA164P-B15AZ
廠商: Atmel
文件頁數(shù): 32/70頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 16KB FLASH 44TQFP
標(biāo)準(zhǔn)包裝: 1,500
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: I²C,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(chǔ)器容量: 16KB(8K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大小: 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 44-TQFP
包裝: 帶卷 (TR)
其它名稱: ATMEGA164P-B15AZ-ND
25
7674F–AVR–09/09
ATmega164P/324P/644P
When the write access time has elapsed, the EEPE bit is cleared by hardware. The user soft-
ware can poll this bit and wait for a zero before writing the next byte. When EEPE has been set,
the CPU is halted for two cycles before the next instruction is executed.
Bit 0 – EERE: EEPROM Read Enable
The EEPROM Read Enable Signal EERE is the read strobe to the EEPROM. When the correct
address is set up in the EEAR Register, the EERE bit must be written to a logic one to trigger the
EEPROM read. The EEPROM read access takes one instruction, and the requested data is
available immediately. When the EEPROM is read, the CPU is halted for four cycles before the
next instruction is executed.
The user should poll the EEPE bit before starting the read operation. If a write operation is in
progress, it is neither possible to read the EEPROM, nor to change the EEAR Register.
The calibrated Oscillator is used to time the EEPROM accesses. Table 6-2 on page 25 lists the
typical programming time for EEPROM access from the CPU.
Table 6-2.
EEPROM Programming Time
Symbol
Number of Calibrated RC Oscillator Cycles
Typ Programming Time
EEPROM write
(from CPU)
26,368
3.3 ms
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