參數(shù)資料
型號: P89V51RB2BBC
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, PQFP44
封裝: 10 X 10 MM, 1 MM HEIGHT, PLASTIC, MS-026, TQFP-44
文件頁數(shù): 69/77頁
文件大?。?/td> 350K
代理商: P89V51RB2BBC
Philips Semiconductors
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
Product data
Rev. 03 — 02 December 2004
69 of 77
9397 750 14341
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
t
CLCX
t
CLCH
t
CHCL
low time
rise time
fall time
8.75
-
-
-
10
10
0.35T
CLCL
-
-
0.65T
CLCL
-
-
ns
ns
ns
Table 71:
Symbol
External clock drive
…continued
Parameter
Oscillator
40 MHz
Min
Unit
Variable
Min
Max
Max
Fig 33. External clock drive waveform.
002aaa551
0.2 VDD - 0.1
0.45 V
tCHCL
tCLCL
tCLCH
tCLCX
tCHCX
0.7VDD
VDD - 0.5
Table 72:
Symbol
Serial port timing
Parameter
Oscillator
40 MHz
Min
0.3
117
Unit
Variable
Min
12t
CLCL
10t
CLCL
133
Max
-
-
Max
-
-
t
XLXL
t
QVXH
serial port clock cycle time
output data set-up to clock rising
edge
output data hold after clock rising
edge
input data hold after clock rising
edge
clock rising edge to input data valid
μ
s
ns
t
XHQX
0
-
2t
CLCL
50
-
ns
t
XHDX
0
-
0
-
ns
t
XHDV
-
117
-
10t
CLCL
133
ns
Fig 34. Shift register mode timing waveforms.
002aaa552
ALE
0
INSTRUCTION
CLOCK
OUTPUT DATA
WRITE TO SBUF
INPUT DATA
VALID
VALID
VALID
VALID
VALID
VALID
VALID
VALID
CLEAR RI
0
1
2
3
4
5
6
7
tXLXL
tQVXH
tXHQX
tXHDV
tXHDX
SET TI
SET R I
1
2
3
4
5
6
7
8
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