PIC17C752 MICROCHIP [Microchip Technology], PIC17C752 Datasheet - Page 272

• Manufacturer Part Number: PIC17C752
• Description: High-Performance 8-Bit CMOS EPROM Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE E-12: I
TABLE E-3:
DS30264A-page 272
Parameter
Note 1: As a transmitter, the device must provide this internal minimum delay time to bridge the undefined region (min. 300 ns) of
Microchip
D102
100
101
102
103
106
107
109
110
No.
90
91
92
2: A fast-mode I
the falling edge of SCL to avoid unintended generation of START or STOP conditions.
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
released.
SDA
Out
SDA
In
SCL
R
max.+tsu;DAT = 1000 + 250 = 1250 ns (according to the standard-mode I
T
T
T
T
T
T
T
HD
HD
SU
SU
SU
T
Sym
T
HIGH
Cb
LOW
T
T
BUF
AA
:
:
:
:
:
R
F
DAT
STO
STA
STA
DAT
I
2
2
C BUS DATA TIMING SPECIFICATION
C BUS DATA TIMING SPECIFICATION
2
C-bus device can be used in a standard-mode I
Characteristic
Clock high time
Clock low time
SDA and SCL rise
time
SDA and SCL fall time 100 kHz mode
START condition
setup time
START condition hold
time
Data input hold time
Data input setup time
STOP condition setup
time
Output valid from
clock
Bus free time
Bus capacitive loading
90
103
91
109
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100
Preliminary
106
101
109
20 + 0.1Cb
20 + 0.1Cb
2
C-bus system, but the requirement tsu;DAT
Min
250
100
4.0
0.6
4.7
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.7
1.3
—
—
—
—
—
0
0
107
1000
3500
1000
Max
300
300
300
0.9
400
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2
C bus specification) before the SCL line is
Units
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s
s
s
s
s
s
1997 Microchip Technology Inc.
92
Cb is specified to be from
10 to 400 pF
Cb is specified to be from
10 to 400 pF
Only relevant for repeated
START condition
After this period the first clock
pulse is generated
Note 2
Note 1
Time the bus must be free
before a new transmission
can start
102
110
Conditions
250 ns must