MC68H(R)C908JL3 鈥� Rev. 1.1 78 Sys" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� MC68HC908JK3CP
寤犲晢锛� Freescale Semiconductor
鏂囦欢闋佹暩(sh霉)锛� 192/212闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC MCU 8MHZ 4K FLASH 20-DIP
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 18
绯诲垪锛� HC08
鏍稿績铏曠悊鍣細 HC08
鑺珨灏哄锛� 8-浣�
閫熷害锛� 8MHz
澶栧湇瑷�(sh猫)鍌欙細 LED锛孡VD锛孭OR锛孭WM
杓稿叆/杓稿嚭鏁�(sh霉)锛� 15
绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 4KB锛�4K x 8锛�
绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 闁冨瓨
RAM 瀹归噺锛� 128 x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 2.7 V ~ 3.3 V
鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� A/D 12x8b
鎸暕鍣ㄥ瀷锛� 澶栭儴
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 20-DIP锛�0.300"锛�7.62mm锛�
鍖呰锛� 绠′欢
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System Integration Module (SIM)
Technical Data
MC68H(R)C908JL3 鈥� Rev. 1.1
78
System Integration Module (SIM)
Freescale Semiconductor
The active reset feature allows the part to issue a reset to peripherals
and other chips within a system built around the MCU.
7.4.2.1 Power-On Reset
When power is first applied to the MCU, the power-on reset module
(POR) generates a pulse to indicate that power-on has occurred. The
external reset pin (RST) is held low while the SIM counter counts out
4096 2OSCOUT cycles. Sixty-four 2OSCOUT cycles later, the CPU and
memories are released from reset to allow the reset vector sequence to
occur.
At power-on, the following events occur:
A POR pulse is generated.
The internal reset signal is asserted.
The SIM enables the oscillator to drive 2OSCOUT.
Internal clocks to the CPU and modules are held inactive for 4096
2OSCOUT cycles to allow stabilization of the oscillator.
The RST pin is driven low during the oscillator stabilization time.
The POR bit of the reset status register (RSR) is set and all other
bits in the register are cleared.
Figure 7-7. POR Recovery
PORRST
OSC1
2OSCOUT
OSCOUT
RST
IAB
4096
CYCLES
32
CYCLES
32
CYCLES
$FFFE
$FFFF
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
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EHFW2BX CONN EEE1394 FEMALE STR T/H BLK
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鐩搁棞(gu膩n)浠g悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉)
鍙冩暩(sh霉)鎻忚堪
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MC68HC908JK8MDWE 鍒堕€犲晢:Freescale Semiconductor 鍔熻兘鎻忚堪:
MC68HC908JK8MP 鍒堕€犲晢:Motorola Inc 鍔熻兘鎻忚堪: 鍒堕€犲晢:MOTOROLA 鍔熻兘鎻忚堪: