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參數(shù)資料
| 型號： | SAA5290ZP |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | One page Economy Teletext/TV microcontroller |
| 中文描述： | 一頁經(jīng)濟(jì)圖文電視/電視微控制器 |
| 文件頁數(shù)： | 12/33頁 |
| 文件大小： | 360K |
| 代理商： | SAA5290ZP |
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February 1995
12
Philips Semiconductors
Preliminary specification
One page Economy Teletext/TV
microcontroller
SAA5290
Table 5
Characteristics for the I
2
C-bus interface
Notes
1.
2.
This parameter is determined by the user software. It must comply with the I
2
C-bus specification.
This value gives the auto-clock pulse length which meets the I
2
C-bus specification for the special crystal frequency.
Alternatively, the SCL pulse must be timed by software.
The rise time is determined by the external bus line capacitance and pull-up resistor. It must be less than 1
μ
s.
The maximum capacitance on bus lines SDA and SCL is 400 pF.
3.
4.
SYMBOL
PARAMETER
INPUT
OUTPUT
I
2
C-BUS SPECIFICATION
SCL timing
t
HD;STA
t
LOW
t
HIGH
t
rC
t
fC
START condition hold time
SCL LOW time
SCL HIGH time
SCL rise time
SCL fall time
≥
4.0
μ
s
≥
4.7
μ
s
≥
4.0
μ
s
≤
1.0
μ
s
≤
0.3
μ
s
note 1
note 1
≥
4.0
μ
s
≥
4.7
μ
s
≥
4.0
μ
s
≤
1.0
μ
s
≤
0.3
μ
s
≥
4.0
μ
s; note 2
note 3
≤
0.3
μ
s; note 4
SDA timing
t
SU;DAT1
t
HD;DAT
t
SU;STA
t
SU;STO
t
BUF
t
rD
t
fD
data set-up time
data hold time
repeated START set-up time
STOP condition set-up time
bus free time
SDA rise time
SDA fall time
≥
250 ns
≥
0 ns
≥
4.7
μ
s
≥
4.0
μ
s
≥
4.7
μ
s
≤
1.0
μ
s
≤
0.3
μ
s
note 1
note 1
note 1
note 1
note 1
note 3
≥
250 ns
≥
0 ns
≥
4.7
μ
s
≥
4.0
μ
s
≥
4.7
μ
s
≤
1.0
μ
s
≤
0.3
μ
s
≤
0.3
μ
s; note 4
d
trD
tfD
trC
tfC
tHD;STA
tLOW
tHIGH
tSU;DAT1
tHD;DAT
tSU;DAT2
tSU;DAT3
0.7VDD
0.3VDD
tSU;STO
tBUF
tSU;STA
SDA
(input / output)
SCL
(input / output)
START condition
repeated START condition
STOP condition
START or repeated START condition
0.7VDD
0.3VDD
MLC104
Fig.3 I
2
C-bus interface timing.
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相關(guān)代理商/技術(shù)參數(shù) |
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| SAA5290ZP/NV | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:One page Economy Teletext/TV microcontroller |
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| SAA5291AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5291APS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
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