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鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉(h脿o)锛� | AT89C51RC2-3CSIM |
| 寤犲晢锛� | Atmel |
| 鏂囦欢闋�(y猫)鏁�(sh霉)锛� | 108/127闋�(y猫) |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC 8051 MCU FLASH 32K 40DIP |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 9 |
| 绯诲垪锛� | 89C |
| 鏍稿績铏曠悊鍣細 | 8051 |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 60MHz |
| 閫ｉ€氭€э細 | SPI锛孶ART/USART |
| 澶栧湇瑷�(sh猫)鍌欙細 | POR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 32 |
| 绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 | 32KB锛�32K x 8锛� |
| 绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 | 闁冨瓨 |
| RAM 瀹归噺锛� | 1.25K x 8 |
| 闆诲 - 闆绘簮 (Vcc/Vdd)锛� | 2.7 V ~ 5.5 V |
| 鎸暕鍣ㄥ瀷锛� | 澶栭儴 |
| 宸ヤ綔婧害锛� | -40°C ~ 85°C |
| 灏佽/澶栨锛� | 40-DIP锛�0.600"锛�15.24mm锛� |
| 鍖呰锛� | 绠′欢 |
| 閰嶇敤锛� | AT89STK-11-ND - KIT STARTER FOR AT89C51RX2 |
绗�1闋�(y猫)绗�2闋�(y猫)绗�3闋�(y猫)绗�4闋�(y猫)绗�5闋�(y猫)绗�6闋�(y猫)绗�7闋�(y猫)绗�8闋�(y猫)绗�9闋�(y猫)绗�10闋�(y猫)绗�11闋�(y猫)绗�12闋�(y猫)绗�13闋�(y猫)绗�14闋�(y猫)绗�15闋�(y猫)绗�16闋�(y猫)绗�17闋�(y猫)绗�18闋�(y猫)绗�19闋�(y猫)绗�20闋�(y猫)绗�21闋�(y猫)绗�22闋�(y猫)绗�23闋�(y猫)绗�24闋�(y猫)绗�25闋�(y猫)绗�26闋�(y猫)绗�27闋�(y猫)绗�28闋�(y猫)绗�29闋�(y猫)绗�30闋�(y猫)绗�31闋�(y猫)绗�32闋�(y猫)绗�33闋�(y猫)绗�34闋�(y猫)绗�35闋�(y猫)绗�36闋�(y猫)绗�37闋�(y猫)绗�38闋�(y猫)绗�39闋�(y猫)绗�40闋�(y猫)绗�41闋�(y猫)绗�42闋�(y猫)绗�43闋�(y猫)绗�44闋�(y猫)绗�45闋�(y猫)绗�46闋�(y猫)绗�47闋�(y猫)绗�48闋�(y猫)绗�49闋�(y猫)绗�50闋�(y猫)绗�51闋�(y猫)绗�52闋�(y猫)绗�53闋�(y猫)绗�54闋�(y猫)绗�55闋�(y猫)绗�56闋�(y猫)绗�57闋�(y猫)绗�58闋�(y猫)绗�59闋�(y猫)绗�60闋�(y猫)绗�61闋�(y猫)绗�62闋�(y猫)绗�63闋�(y猫)绗�64闋�(y猫)绗�65闋�(y猫)绗�66闋�(y猫)绗�67闋�(y猫)绗�68闋�(y猫)绗�69闋�(y猫)绗�70闋�(y猫)绗�71闋�(y猫)绗�72闋�(y猫)绗�73闋�(y猫)绗�74闋�(y猫)绗�75闋�(y猫)绗�76闋�(y猫)绗�77闋�(y猫)绗�78闋�(y猫)绗�79闋�(y猫)绗�80闋�(y猫)绗�81闋�(y猫)绗�82闋�(y猫)绗�83闋�(y猫)绗�84闋�(y猫)绗�85闋�(y猫)绗�86闋�(y猫)绗�87闋�(y猫)绗�88闋�(y猫)绗�89闋�(y猫)绗�90闋�(y猫)绗�91闋�(y猫)绗�92闋�(y猫)绗�93闋�(y猫)绗�94闋�(y猫)绗�95闋�(y猫)绗�96闋�(y猫)绗�97闋�(y猫)绗�98闋�(y猫)绗�99闋�(y猫)绗�100闋�(y猫)绗�101闋�(y猫)绗�102闋�(y猫)绗�103闋�(y猫)绗�104闋�(y猫)绗�105闋�(y猫)绗�106闋�(y猫)绗�107闋�(y猫)鐣�(d膩ng)鍓嶇108闋�(y猫)绗�109闋�(y猫)绗�110闋�(y猫)绗�111闋�(y猫)绗�112闋�(y猫)绗�113闋�(y猫)绗�114闋�(y猫)绗�115闋�(y猫)绗�116闋�(y猫)绗�117闋�(y猫)绗�118闋�(y猫)绗�119闋�(y猫)绗�120闋�(y猫)绗�121闋�(y猫)绗�122闋�(y猫)绗�123闋�(y猫)绗�124闋�(y猫)绗�125闋�(y猫)绗�126闋�(y猫)绗�127闋�(y猫)
81
AT89C51RB2/RC2
4180E鈥�8051鈥�10/06
Table 1. Minimum Reset Capacitor Value for a 50 k
惟 Pull-down Resistor(1)
Note:
These values assume VDD starts from 0V to the nominal value. If the time between 2
on/off sequences is too fast, the power-supply de-coupling capacitors may not be fully
discharged, leading to a bad reset sequence.
Warm Reset
To achieve a valid reset, the reset signal must be maintained for at least 2 machine
cycles (24 oscillator clock periods) while the oscillator is running. The number of clock
periods is mode independent (X2 or X1).
Watchdog Reset
As detailed in Section 鈥淗ardware Watchdog Timer鈥�, page 77, the WDT generates a 96-
clock period pulse on the RST pin. In order to properly propagate this pulse to the rest of
the application in case of external capacitor or power-supply supervisor circuit, a 1 k
惟
resistor must be added as shown Figure 33.
Figure 33. Reset Circuitry for WDT Reset-out Usage
Oscillator
Start-Up Time
VDD Rise Time
1 ms
10 ms
100 ms
5 ms
820 nF
1.2 F
12 F
20 ms
2.7 F
3.9 F
12 F
R
RS
T
RST
VSS
To CPU Core
and Peripherals
VDD
+
P
VDD
From WDT
Reset Source
VSS
VDD
RST
1K
To Other
On-board
Circuitry
鐩搁棞(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
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| AT89C51RB2-SLSIL | IC 8051 MCU FLASH 16K 44PLCC |
| PIC16C72A-04/SP | IC MCU OTP 2KX14 A/D PWM 28DIP |
| AT89C51RB2-RLTIM | IC 8051 MCU FLASH 16K 44VQFP |
| AT89C51RB2-3CSIM | IC 8051 MCU FLASH 16K 40DIP |
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 |
|---|---|
| AT89C51RC2-3CSUM | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 32kB Flash 1280B RAM 2.7V-5.5V 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 |
| AT89C51RC-24AC | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 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 |
| AT89C51RC-24AI | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 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 |
| AT89C51RC-24AU | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 32K FLASH 4.0 TO 5.5V 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 |
| AT89C51RC-24JC | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 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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