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鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉锛� | AT89C51ID2-RLRIM |
| 寤犲晢锛� | Atmel |
| 鏂囦欢闋佹暩(sh霉)锛� | 12/157闋� |
| 鏂囦欢澶у皬锛� | 0K |
| 鎻忚堪锛� | IC MCU FLASH 8051 64K 5V 44-VQFP |
| 妯欐簴鍖呰锛� | 1 |
| 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 | I²C锛孲PI锛孶ART/USART |
| 澶栧湇瑷倷锛� | POR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 34 |
| 绋嬪簭瀛樺劜鍣ㄥ閲忥細 | 64KB锛�64K x 8锛� |
| 绋嬪簭瀛樺劜鍣ㄩ鍨嬶細 | 闁冨瓨 |
| EEPROM 澶у皬锛� | 2K x 8 |
| RAM 瀹归噺锛� | 2K 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� | 44-LQFP |
| 鍖呰锛� | 鍓垏甯� (CT) |
| 鍏跺畠鍚嶇ū锛� | AT89C51ID2RLRIMCT |
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109
AT89C51ID2
4289C鈥�8051鈥�11/05
ONCE(TM) Mode (ON
Chip Emulation)
The ONCE mode facilitates testing and debugging of systems using AT89C51ID2 with-
out removing the circuit from the board. The ONCE mode is invoked by driving certain
pins of the AT89C51ID2; the following sequence must be exercised:
Pull ALE low while the device is in reset (RST high) and PSEN is high.
Hold ALE low as RST is deactivated.
While the AT89C51ID2 is in ONCE mode, an emulator or test CPU can be used to drive
the circuit Table 84 shows the status of the port pins during ONCE mode.
Normal operation is restored when normal reset is applied.
Table 84. External Pin Status during ONCE Mode
(a) "Once" is a registered trademark of Intel Corporation.
ALE
PSEN
Port 0
Port 1
Port 2
Port 3
Port I2
XTALA1/2
XTALB1/2
Weak
pull-up
Weak
pull-up
Float
Weak
pull-up
Weak
pull-up
Weak
pull-up
Float
Active
鐩搁棞PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
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| AT89C51RE2-SLRUM | MCU 8051 128K FLASH 44-PLCC |
| AT89C51SND1C-7HTUL | IC MCU 64KB FLASH MEM 81-CBGA |
| AT89C51SND2C-7FTUL | IC 8051 MCU FLASH 64K MP3 100BGA |
鐩搁棞浠ｇ悊鍟�/鎶€琛撳弮鏁�(sh霉) |
鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| AT89C51ID2-RLRUM | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU C51ID2 64K FLASH 32KHz 3-5.5V 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檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣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ㄦ牸:SMD/SMT |
| AT89C51ID2-RLTIM | 鍔熻兘鎻忚堪:IC 8051 MCU FLASH 64K 44VQFP RoHS:鍚� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - 寰帶鍒跺櫒锛� 绯诲垪:89C 妯欐簴鍖呰:9 绯诲垪:87C 鏍稿績铏曠悊鍣�:8051 鑺珨灏哄:8-浣� 閫熷害:40/20MHz 閫ｉ€氭€�:UART/USART 澶栧湇瑷倷:POR锛學DT 杓稿叆/杓稿嚭鏁�(sh霉):32 绋嬪簭瀛樺劜鍣ㄥ閲�:32KB锛�32K x 8锛� 绋嬪簭瀛樺劜鍣ㄩ鍨�:OTP EEPROM 澶у皬:- RAM 瀹归噺:256 x 8 闆诲 - 闆绘簮 (Vcc/Vdd):4.5 V ~ 5.5 V 鏁�(sh霉)鎿�(j霉)杞夋彌鍣�:- 鎸暕鍣ㄥ瀷:鍏�(n猫i)閮� 宸ヤ綔婧害:0°C ~ 70°C 灏佽/澶栨:40-DIP锛�0.600"锛�15.24mm锛� 鍖呰:绠′欢 |
| AT89C51ID2-RLTUM | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU C51ID2 64K FLASH 32KHz 3-5.5V 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檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣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ㄦ牸:SMD/SMT |
| AT89C51ID2-SLRIM | 鍔熻兘鎻忚堪:IC MCU FLASH 8051 64K 5V 44-PLCC RoHS:鍚� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 宓屽叆寮� - 寰帶鍒跺櫒锛� 绯诲垪:89C 妯欐簴鍖呰:1,500 绯诲垪:AVR® ATtiny 鏍稿績铏曠悊鍣�:AVR 鑺珨灏哄:8-浣� 閫熷害:16MHz 閫ｉ€氭€�:I²C锛孡IN锛孲PI锛孶ART/USART锛孶SI 澶栧湇瑷倷:娆犲妾㈡脯/寰╀綅锛孭OR锛孭WM锛屾韩搴﹀偝鎰熷櫒锛學DT 杓稿叆/杓稿嚭鏁�(sh霉):16 绋嬪簭瀛樺劜鍣ㄥ閲�:8KB锛�4K x 16锛� 绋嬪簭瀛樺劜鍣ㄩ鍨�:闁冨瓨 EEPROM 澶у皬:512 x 8 RAM 瀹归噺:512 x 8 闆诲 - 闆绘簮 (Vcc/Vdd):2.7 V ~ 5.5 V 鏁�(sh霉)鎿�(j霉)杞夋彌鍣�:A/D 11x10b 鎸暕鍣ㄥ瀷:鍏�(n猫i)閮� 宸ヤ綔婧害:-40°C ~ 125°C 灏佽/澶栨:20-SOIC锛�0.295"锛�7.50mm 瀵級 鍖呰:甯跺嵎 (TR) |
| AT89C51ID2-SLRUM | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU C51ID2 64K FLASH TWI 32KHz 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檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣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ㄦ牸:SMD/SMT |
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