saa5700 NXP Semiconductors, saa5700 Datasheet - Page 14

• Manufacturer Part Number: saa5700
• Description: Chinese Character System Teletext Ccst Decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 4 I
Note
1. The I
1997 May 16
handbook, full pagewidth
f
t
t
t
t
t
t
t
t
t
t
SCL
LOW
HIGH
SU;DAT
HD;DAT
SU;STO
BUF
HD;STA
SU;STA
r
f
SYMBOL
Chinese Character System Teletext
(CCST) decoder
in the range 0.4 to 0.8 V. Outside this range, the SDA and SCL pins behave correctly.
SDA
SCL
2
C-bus interface pins SDA and SCL may pull the data and clock lines below 3 V while the power supply V
2
C-bus Timing (see note 1 and Fig.3)
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
t SU;STA
t BUF
PARAMETER
t HD;STA
Fig.3 Primary I
14
t HIGH
2
C-bus timing.
t SU;DAT
0
4.7
4.0
250
0
4.7
4.7
4.0
4.7
MIN.
t LOW
100 kHz
100
1000
300
t r
t HD;DAT
MAX.
t f
0
1.3
0.6
100
0
0.6
1.3
0.6
0.6
MIN.
400 kHz
Preliminary specification
400
300
300
MAX.
MGG541
SAA5700
t SU;STO
kHz
ns
ns
s
s
s
s
s
s
s
s
UNIT
DD
is