參數(shù)資料
型號(hào): P89V51RC2BN
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40
封裝: 0.600 INCH, PLASTIC, MO-015, SOT-129-1, DIP-40
文件頁數(shù): 68/77頁
文件大?。?/td> 350K
代理商: P89V51RC2BN
Philips Semiconductors
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
Product data
Rev. 03 — 02 December 2004
68 of 77
9397 750 14341
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Fig 31. External data memory read cycle.
002aaa549
PORT 2
PORT 0
WR
PSEN
ALE
tLHLL
P2[7:0] or A8-A15 FROM DPH
A0-A7 FROM RI or DPL
DATA OUT
INSTR IN
tAVLL
tAVWL
tLLWL
tLLAX
tWLWH
tQVWH
tWHQX
tWHLH
A8-A15 FROM PCH
A0-A7 FROM PCL
Fig 32. External data memory write cycle.
002aaa550
PORT 2
PORT 0
WR
PSEN
ALE
tLHLL
P2[7:0] or A8-A15 FROM DPH
A0-A7 FROM RI or DPL
DATA OUT
INSTR IN
tAVLL
tAVWL
tLLWL
tLLAX
tWLWH
tQVWH
tWHQX
tWHLH
A8-A15 FROM PCH
A0-A7 FROM PCL
Table 71:
Symbol
External clock drive
Parameter
Oscillator
40 MHz
Min
-
25
8.75
Unit
Variable
Min
0
-
0.35T
CLCL
Max
-
-
-
Max
40
-
0.65T
CLCL
1/T
CLCL
t
CLCL
t
CHCX
oscillator frequency
MHz
ns
ns
high time
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