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參數(shù)資料
| 型號： | SAA5700GP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 圖文 |
| 英文描述： | Chinese Character System Teletext CCST decoder |
| 中文描述： | TELETEXT DECODER, PQFP64 |
| 封裝： | 14 X 20 MM, 2.80 MM HEIGHT, PLASTIC, SOT-319-2, QFP-64 |
| 文件頁數(shù)： | 14/24頁 |
| 文件大小： | 139K |
| 代理商： | SAA5700GP |
1997 May 16
14
Philips Semiconductors
Preliminary specification
Chinese Character System Teletext
(CCST) decoder
SAA5700
Table 4
I
2
C-bus Timing (see note 1 and Fig.3)
Note
1.
The I
2
C-bus interface pins SDA and SCL may pull the data and clock lines below 3 V while the power supply V
DD
is
in the range 0.4 to 0.8 V. Outside this range, the SDA and SCL pins behave correctly.
SYMBOL
PARAMETER
100 kHz
400 kHz
UNIT
MIN.
MAX.
MIN.
MAX.
f
SCL
t
LOW
t
HIGH
t
SU;DAT
t
HD;DAT
t
SU;STO
t
BUF
t
HD;STA
t
SU;STA
t
r
t
f
SCL clock frequency
LOW period of the SCL clock
HIGH period of the SCL clock
data set-up time
date hold time
set-up time clock HIGH to STOP
set-up time STOP to START
START hold time
set-up time clock rising edge to START
rise time of both SDA and SCL signals
fall time of both SDA and SCL signals
0
4.7
4.0
250
0
4.7
4.7
4.0
4.7
100
1000
300
0
1.3
0.6
100
0
0.6
1.3
0.6
0.6
400
300
300
kHz
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
ns
ns
Fig.3 Primary I
2
C-bus timing.
handbook, full pagewidth
MGG541
tHIGH
tLOW
tr
tf
tSU;STA
tHD;STA
tSU;DAT
tHD;DAT
tSU;STO
tBUF
SCL
SDA
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