參數(shù)資料
型號: P83C557E8
廠商: NXP Semiconductors N.V.
元件分類: 8位微控制器
英文描述: 8 BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 67/72頁
文件大?。?/td> 374K
代理商: P83C557E8
Philips Semiconductors
Product specification
P83C557E4/P80C557E4/P89C557E4
Single-chip 8-bit microcontroller
1999 Mar 02
67
t
CLKL
Figure 57. External Clock Drive waveform
V
IH1
V
IH1
0.8V
t
CLK
V
IH1
0.8V
V
IH1
t
CLKH
t
CLKR
t
CLKF
2.4 V
0.45 V
2.0 V
0.8 V
NOTE:
AC inputs during testing are driven at 2.4V for a logic ‘HIGH’ and 0.45V for a logic
‘LOW’. Timing measurements are made at 2.0 V for a logic ‘HIGH’ and 0.8 V for a
logic ‘LOW’.
Figure 58. AC Testing Input/Output
2.4 V
NOTE:
The float state is defined as the point at which a port 0 pins sinks 3.2 mA or
Figure 59. AC Testing, Float Waveform
2.4 V
0.45 V
0.45 V
Float
2.0 V
0.8 V
2.0 V
0.8 V
Test Points
2.0 V
0.8 V
sources 400 A at the voltage test levels.
t
PXIZ
Figure 60. External Program Memory Read Cycle
ALE
PSEN
PORT 0
PORT 2
A8–A15
A8–A15
A0–A7
A0–A7
t
AVLL
t
PXIX
t
LLAX
INSTR IN
t
PLIV
t
LHLL
t
PLPH
t
LLIV
t
PLAZ
t
LLPL
t
AVIV
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