enabled and the input signal is left floating or have an analog signal level close to V" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� ATMEGA32U2-AUR
寤犲晢锛� Atmel
鏂囦欢闋佹暩(sh霉)锛� 251/310闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� MCU AVR 32K FLASH 16MHZ 32TQFP
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� MCU Product Line Introduction
megaAVR Introduction
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 2,000
绯诲垪锛� AVR® ATmega
鏍稿績铏曠悊鍣細 AVR
鑺珨灏哄锛� 8-浣�
閫熷害锛� 16MHz
閫i€氭€э細 SPI锛孶ART/USART锛孶SB
澶栧湇瑷�(sh猫)鍌欙細 娆犲妾㈡脯(c猫)/寰�(f霉)浣�锛孭OR锛孭WM锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 22
绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 32KB锛�16K x 16锛�
绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 闁冨瓨
EEPROM 澶�?銆�?/td> 1K x 8
RAM 瀹归噺锛� 1K x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 2.7 V ~ 5.5 V
鎸暕鍣ㄥ瀷锛� 鍏�(n猫i)閮�
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 32-TQFP
鍖呰锛� 甯跺嵎 (TR)
閰嶇敤锛� ATSTK600-RC20-ND - STK600 ROUTING CARD AVR
绗�1闋�绗�2闋�绗�3闋�绗�4闋�绗�5闋�绗�6闋�绗�7闋�绗�8闋�绗�9闋�绗�10闋�绗�11闋�绗�12闋�绗�13闋�绗�14闋�绗�15闋�绗�16闋�绗�17闋�绗�18闋�绗�19闋�绗�20闋�绗�21闋�绗�22闋�绗�23闋�绗�24闋�绗�25闋�绗�26闋�绗�27闋�绗�28闋�绗�29闋�绗�30闋�绗�31闋�绗�32闋�绗�33闋�绗�34闋�绗�35闋�绗�36闋�绗�37闋�绗�38闋�绗�39闋�绗�40闋�绗�41闋�绗�42闋�绗�43闋�绗�44闋�绗�45闋�绗�46闋�绗�47闋�绗�48闋�绗�49闋�绗�50闋�绗�51闋�绗�52闋�绗�53闋�绗�54闋�绗�55闋�绗�56闋�绗�57闋�绗�58闋�绗�59闋�绗�60闋�绗�61闋�绗�62闋�绗�63闋�绗�64闋�绗�65闋�绗�66闋�绗�67闋�绗�68闋�绗�69闋�绗�70闋�绗�71闋�绗�72闋�绗�73闋�绗�74闋�绗�75闋�绗�76闋�绗�77闋�绗�78闋�绗�79闋�绗�80闋�绗�81闋�绗�82闋�绗�83闋�绗�84闋�绗�85闋�绗�86闋�绗�87闋�绗�88闋�绗�89闋�绗�90闋�绗�91闋�绗�92闋�绗�93闋�绗�94闋�绗�95闋�绗�96闋�绗�97闋�绗�98闋�绗�99闋�绗�100闋�绗�101闋�绗�102闋�绗�103闋�绗�104闋�绗�105闋�绗�106闋�绗�107闋�绗�108闋�绗�109闋�绗�110闋�绗�111闋�绗�112闋�绗�113闋�绗�114闋�绗�115闋�绗�116闋�绗�117闋�绗�118闋�绗�119闋�绗�120闋�绗�121闋�绗�122闋�绗�123闋�绗�124闋�绗�125闋�绗�126闋�绗�127闋�绗�128闋�绗�129闋�绗�130闋�绗�131闋�绗�132闋�绗�133闋�绗�134闋�绗�135闋�绗�136闋�绗�137闋�绗�138闋�绗�139闋�绗�140闋�绗�141闋�绗�142闋�绗�143闋�绗�144闋�绗�145闋�绗�146闋�绗�147闋�绗�148闋�绗�149闋�绗�150闋�绗�151闋�绗�152闋�绗�153闋�绗�154闋�绗�155闋�绗�156闋�绗�157闋�绗�158闋�绗�159闋�绗�160闋�绗�161闋�绗�162闋�绗�163闋�绗�164闋�绗�165闋�绗�166闋�绗�167闋�绗�168闋�绗�169闋�绗�170闋�绗�171闋�绗�172闋�绗�173闋�绗�174闋�绗�175闋�绗�176闋�绗�177闋�绗�178闋�绗�179闋�绗�180闋�绗�181闋�绗�182闋�绗�183闋�绗�184闋�绗�185闋�绗�186闋�绗�187闋�绗�188闋�绗�189闋�绗�190闋�绗�191闋�绗�192闋�绗�193闋�绗�194闋�绗�195闋�绗�196闋�绗�197闋�绗�198闋�绗�199闋�绗�200闋�绗�201闋�绗�202闋�绗�203闋�绗�204闋�绗�205闋�绗�206闋�绗�207闋�绗�208闋�绗�209闋�绗�210闋�绗�211闋�绗�212闋�绗�213闋�绗�214闋�绗�215闋�绗�216闋�绗�217闋�绗�218闋�绗�219闋�绗�220闋�绗�221闋�绗�222闋�绗�223闋�绗�224闋�绗�225闋�绗�226闋�绗�227闋�绗�228闋�绗�229闋�绗�230闋�绗�231闋�绗�232闋�绗�233闋�绗�234闋�绗�235闋�绗�236闋�绗�237闋�绗�238闋�绗�239闋�绗�240闋�绗�241闋�绗�242闋�绗�243闋�绗�244闋�绗�245闋�绗�246闋�绗�247闋�绗�248闋�绗�249闋�绗�250闋�鐣�(d膩ng)鍓嶇251闋�绗�252闋�绗�253闋�绗�254闋�绗�255闋�绗�256闋�绗�257闋�绗�258闋�绗�259闋�绗�260闋�绗�261闋�绗�262闋�绗�263闋�绗�264闋�绗�265闋�绗�266闋�绗�267闋�绗�268闋�绗�269闋�绗�270闋�绗�271闋�绗�272闋�绗�273闋�绗�274闋�绗�275闋�绗�276闋�绗�277闋�绗�278闋�绗�279闋�绗�280闋�绗�281闋�绗�282闋�绗�283闋�绗�284闋�绗�285闋�绗�286闋�绗�287闋�绗�288闋�绗�289闋�绗�290闋�绗�291闋�绗�292闋�绗�293闋�绗�294闋�绗�295闋�绗�296闋�绗�297闋�绗�298闋�绗�299闋�绗�300闋�绗�301闋�绗�302闋�绗�303闋�绗�304闋�绗�305闋�绗�306闋�绗�307闋�绗�308闋�绗�309闋�绗�310闋�
45
7799D鈥揂VR鈥�11/10
ATmega8U2/16U2/32U2
enabled and the input signal is left floating or have an analog signal level close to VCC/2, the
input buffer will use excessive power.
For analog input pins, the digital input buffer should be disabled at all times. An analog signal
level close to VCC/2 on an input pin can cause significant current even in active mode. Digital
input buffers can be disabled by writing to the Digital Input Disable Registers (DIDR1). Refer to
9.9.6
On-chip Debug System
If the On-chip debug system is enabled by the OCDEN Fuse and the chip enters sleep mode,
the main clock source is enabled, and hence, always consumes power. In the deeper sleep
modes, this will contribute significantly to the total current consumption.
9.10
Register Description
9.10.1
SMCR 鈥� Sleep Mode Control Register
The Sleep Mode Control Register contains control bits for power management.
Bit 7:4 - Reserved bits
These bits are reserved and will always read as zero.
Bits 3:1 鈥� SM[2:0]: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in Table 9-2.
Note:
1. Standby modes are only recommended for use with external crystals or resonators.
Bit 0鈥� SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer鈥檚
purpose, it is recommended to write the Sleep Enable (SE) bit to one just before the execution of
the SLEEP instruction and to clear it immediately after waking up.
Bit
76543210
鈥�
SM2
SM1
SM0
SE
SMCR
Read/Write
R
R/W
Initial Value
0
Table 9-2.
Sleep Mode Select
SM2
SM1
SM0
Sleep Mode
0
Idle
0
1
Reserved
0
1
0
Power-down
0
1
Power-save
1
0
Reserved
1
0
1
Reserved
1
0
Standby(1)
1
Extended Standby(1)
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ATMEGA32U2-MUR 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU USB 32K FLASH 16 MHz RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪(sh铆)閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜(ch菙)鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT
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