參數(shù)資料
型號(hào): AT91SAM7SE512-CU-999
廠商: Atmel
文件頁(yè)數(shù): 25/47頁(yè)
文件大?。?/td> 0K
描述: IC MCU ARM7 512KB FLASH 144LFBGA
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 1,000
系列: SAM7SE
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 55MHz
連通性: EBI/EMI,I²C,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 88
程序存儲(chǔ)器容量: 512KB(512K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 32K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 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 ~ 85°C
封裝/外殼: 144-LFBGA
包裝: 帶卷 (TR)
配用: AT91SAM7SE-EK-ND - EVAL BOARD FOR AT91SAM7SE
AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
31
6222GS–ATARM–6-Sep-11
SAM7SE512/256/32 Summary
Main Oscillator frequency ranges between 3 and 20 MHz
Main Oscillator can be bypassed
PLL output ranges between 80 and 220 MHz
It provides SLCK, MAINCK and PLLCK.
Figure 9-2.
Clock Generator Block Diagram
9.3
Power Management Controller
The Power Management Controller uses the Clock Generator outputs to provide:
the Processor Clock PCK
the Master Clock MCK
the USB Clock UDPCK
all the peripheral clocks, independently controllable
three programmable clock outputs
The Master Clock (MCK) is programmable from a few hundred Hz to the maximum operating fre-
quency of the device.
The Processor Clock (PCK) switches off when entering processor idle mode, thus allowing
reduced power consumption while waiting for an interrupt.
Power
Management
Controller
XIN
XOUT
PLLRC
Slow Clock
SLCK
Main Clock
MAINCK
PLL Clock
PLLCK
Control
Status
Embedded
RC
Oscillator
Main
Oscillator
PLL and
Divider
Clock Generator
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