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鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� PIC18F44K20T-I/MV
寤犲晢锛� Microchip Technology
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 133/234闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� MCU 16KB FLASH 768B RAM 40UQFN
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 3,300
绯诲垪锛� PIC® XLP™ 18F
鏍稿績铏曠悊鍣細 PIC
鑺珨灏哄锛� 8-浣�
閫熷害锛� 64MHz
閫ｉ€氭€э細 I²C锛孲PI锛孶ART/USART
澶栧湇瑷�(sh猫)鍌欙細 娆犲妾㈡脯(c猫)/寰�(f霉)浣�锛孒LVD锛孭OR锛孭WM锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 35
绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 16KB锛�8K x 16锛�
绋嬪簭瀛樺劜(ch菙)鍣ㄩ(l猫i)鍨嬶細 闁冨瓨
EEPROM 澶�?銆�?/td> 256 x 8
RAM 瀹归噺锛� 768 x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 1.8 V ~ 3.6 V
鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� A/D 14x10b
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� 40-UFQFN 瑁搁湶鐒婄洡(p谩n)
鍖呰锛� 甯跺嵎 (TR)
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dsPIC33F
DS70165E-page 216
Preliminary
2007 Microchip Technology Inc.
18.11 Slope Control
The I2C standard requires slope control on the SDAx
and SCLx signals for Fast mode (400 kHz). The control
bit, DISSLW, enables the user to disable slew rate con-
trol if desired. It is necessary to disable the slew rate
control for 1 MHz mode.
18.12 Clock Arbitration
Clock arbitration occurs when the master deasserts the
SCLx pin (SCLx allowed to float high) during any
receive, transmit or Restart/Stop condition. When the
SCLx pin is allowed to float high, the Baud Rate Gen-
erator (BRG) is suspended from counting until the
SCLx pin is actually sampled high. When the SCLx pin
is sampled high, the Baud Rate Generator is reloaded
with the contents of I2CxBRG and begins counting.
This ensures that the SCLx high time will always be at
least one BRG rollover count in the event that the clock
is held low by an external device.
18.13 Multi-Master Communication, Bus
Collision and Bus Arbitration
Multi-Master mode support is achieved by bus
arbitration. When the master outputs address/data bits
onto the SDAx pin, arbitration takes place when the
master outputs a 鈥�1鈥� on SDAx by letting SDAx float high
while another master asserts a 鈥�0鈥�. When the SCLx pin
floats high, data should be stable. If the expected data
on SDAx is a 鈥�1鈥� and the data sampled on the
SDAx pin = 0, then a bus collision has taken place. The
master will set the I2C master events interrupt flag and
reset the master portion of the I2C port to its Idle state.
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
VI-20X-IX-S CONVERTER MOD DC/DC 5.2V 75W
VI-20V-IX-S CONVERTER MOD DC/DC 5.8V 75W
VI-20R-IX-S CONVERTER MOD DC/DC 7.5V 75W
GRM219F51E224ZA01J CAP CER 0.22UF 25V Y5V 0805
VE-243-IX-S CONVERTER MOD DC/DC 24V 75W
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