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    1. 參數(shù)資料
      型號(hào): TS87C54X2-VCE
      廠商: Atmel
      文件頁數(shù): 53/62頁
      文件大?。?/td> 0K
      描述: IC MCU 8BIT 16K OTP 40MHZ 44VQFP
      標(biāo)準(zhǔn)包裝: 160
      系列: 87C
      核心處理器: 8051
      芯體尺寸: 8-位
      速度: 40/30MHz
      連通性: UART/USART
      外圍設(shè)備: POR,WDT
      輸入/輸出數(shù): 32
      程序存儲(chǔ)器容量: 16KB(16K x 8)
      程序存儲(chǔ)器類型: OTP
      RAM 容量: 256 x 8
      電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
      振蕩器型: 內(nèi)部
      工作溫度: 0°C ~ 70°C
      封裝/外殼: 44-QFP
      包裝: 托盤
      57
      4431E–8051–04/06
      AT/TS8xC54/8X2
      Figure 19-14. Clock Waveforms
      This diagram indicates when signals are clocked internally. The time it takes the signals to prop-
      agate to the pins, however, ranges from 25 to 125 ns. This propagation delay is dependent on
      variables such as temperature and pin loading. Propagation also varies from output to output
      and component. Typically though (TA=25°C fully loaded) RD and WR propagation delays are
      approximately 50ns. The other signals are typically 85 ns. Propagation delays are incorporated
      in the AC specifications.
      CLOCK
      XTAL2
      ALE
      INTERNAL
      STATE4
      STATE5
      STATE6
      STATE1
      STATE2
      STATE3
      STATE4
      STATE5
      EXTERNAL PROGRAM MEMORY FETCH
      READ CYCLE
      WRITE CYCLE
      SERIAL PORT SHIFT CLOCK
      PORT OPERATION
      PSEN
      P0
      P2 (EXT)
      RD
      P0
      P2
      P0
      P2
      WR
      TXD (MODE 0)
      RXD SAMPLED
      P0 PINS SAMPLED
      P1, P2, P3 PINS SAMPLED
      P0 PINS SAMPLED
      MOV DEST PORT (P1, P2, P3)
      (INCLUDES INT0, INT1, TO, T1)
      MOV DEST P0
      OLD DATA
      NEW DATA
      DPL OR Rt OUT
      DATA OUT
      PCL OUT (EVEN IF PROGRAM
      MEMORY IS INTERNAL)
      PCL OUT (IF PROGRAM
      MEMORY IS EXTERNAL)
      INDICATES DPH OR P2 SFR TO PCH
      TRANSITION
      DPL OR Rt
      FLOAT
      PCL OUT (IF PROGRAM
      MEMORY IS EXTERNAL)
      INDICATES DPH OR P2 SFR TO PCH
      TRANSITION
      INDICATES ADDRESS
      FLOAT
      PCL OUT
      DATA
      SAMPLED
      DATA
      SAMPLED
      DATA
      SAMPLED
      THESE SIGNALS ARE NOT ACTIVATED DURING THE
      EXECUTION OF A MOVX INSTRUCTION
      P1P2
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