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參數(shù)資料
| 型號(hào)： | SAA5520PS |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Standard TV Microcontrollers with On-Screen Display(OSD) |
| 中文描述： | 微控制器與標(biāo)準(zhǔn)電視屏幕顯示（OSD） |
| 文件頁(yè)數(shù)： | 70/80頁(yè) |
| 文件大?。?/td> | 340K |
| 代理商： | SAA5520PS |
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1999 Oct 27
70
Philips Semiconductors
Preliminary specification
Standard TV microcontrollers with
On-Screen Display (OSD)
SAA55xx
22.1
I
2
C-bus characteristics
Table 25
I
2
C-bus characteristics
Notes
1.
A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the V
IL(min)
of the SCL
signal) in order to bridge the undefined region of the falling edge of SCL.
The maximum f
HD;DAT
has only to be met if the device does not stretch the LOW period t
LOW
of the SCL signal.
A fast-mode I
2
C-bus device can be used in a standard mode I
2
C-bus system but the requirement t
SU;DAT
≥
250 ns
must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal.
If such a device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line
t
r(max)
+ t
SU;DAT
= 1000 + 250 +1250 ns (according to the standard mode I
2
C-bus specification) before the SCL line
is released.
2.
3.
SYMBOL
PARAMETER
FAST-MODE I
2
C-bus
UNIT
MIN.
MAX.
f
SCL
t
BUF
t
HD;STA
SCL clock frequency
bus free time between a STOP and START condition
hold time (repeated) START condition. After this period, the
first clock pulse is generated.
LOW period of the SCL clock
HIGH period of the SCL clock
set-up time for a repeated START condition
data hold time; notes 1 and 2
data set-up time, note 3
rise time of both SDA and SCL signals
fall time of both SDA and SCL signals
set-up time for STOP condition
capacitive load for each bus line
0
1.3
0.6
400
kHz
μ
s
μ
s
t
LOW
t
HIGH
t
SU;STA
t
HD;DAT
t
SU;DAT
t
r
t
f
t
SU;STO
C
b
1.3
0.6
0.6
0
100
20
20
0.6
0.9
300
300
400
μ
s
μ
s
μ
s
μ
s
ns
ns
ns
μ
s
pF
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| SAA5521PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Standard TV Microcontrollers with On-Screen Display(OSD) |
| SAA5522PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Standard TV Microcontrollers with On-Screen Display(OSD) |
| SAA5523PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Standard TV Microcontrollers with On-Screen Display(OSD) |
| SAA5530 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
| SAA5530PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
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