ST92196A STMicroelectronics, ST92196A Datasheet - Page 259

• Manufacturer Part Number: ST92196A
• Description: 8/16-bit Mcu For Tv Applications With Up To 96k Rom, On-screen-display And 1 Or 2 Data Slicers
• Manufacturer: STMicroelectronics

ST92E196A/B & ST92T196A/B ELECTRICAL CHARACTERISTICS
AC ELECTRICAL CHARACTERISTICS (Cont’d)
Table 53. Characteristics of Analog Input Section
(V
Measurement conditions: (*) Same DC level on both comparator inputs AC level 40mV for applicated measurement sig-
nal (**) corresponds to 25 IRE tap voltage
259/268
Voltage comparator reference voltage:
Unit#1 - Video black level clamp
Unit#2 - Data slicer (**)
Unit#3 - Sync slicer
Voltage comparator delay (all units) (*)
Video clamp:
Sink current (CCVIDEO pin at 2.1V DC)
Source current (CCVIDEO pin at 1.9V DC)
Sink to source current ratio
T
T
T
T
T
T
T
T
TF
T
Cb
Symbol
DD
BUF
HD:STA
LOW
HIGH
SU:STA
HD:DAT
SU:DAT
R
SU
1)The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the unde-
fined region of the falling edge of SCL
2)The maximum hold time of the START condition has only to be met if the interface does not stretch the low period
of SCL signal
Cb = total capacitance of one bus line in pF
:
STO
= 5V, TA = -10°C to 75°C)
Bus free time between a STOP and START con-
dition
Hold time START condition. After this period,
LOW period of the SCL clock
HIGH period of the SCL clock
Set-up time for a repeated START condition
Data hold time
Data set-up time
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
the first clock pulse is generated
Parameter
Parameter
I
2
C Bus Timings
4.7
4.0
4.7
4.0
4.7
0 (1)
250
4.0
Standard I
Min
1000
300
400
Max
2
C
Min.
1.90
2.25
1.70
150
150
0.1
21
1.3
0.6
1.3
0.6
0.6
0 (1)
100
20+0.1Cb
20+0.1Cb
0.6
Min
Value
Typ.
2.00
2.35
1.80
0.14
Fast I
200
300
42
2
C
0.9(2)
300
300
400
Max.
Max
2.10
2.45
1.90
0.18
250
600
80
ms
ns
ns
ns
ns
ns
pF
Unit
Unit
µA
s
s
s
s
µA
ns
V
V
V