SMT4214 Summit Microelectronics, Inc., SMT4214 Datasheet - Page 10

• Manufacturer Part Number: SMT4214
• Description: Expandable Four-rail Supply TRAKKER™ Controller
• Manufacturer: Summit Microelectronics, Inc.

Note: 1/ - Guaranteed by Design.
Summit Microelectronics, Inc
TIMING DIAGRAMS
I
(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.) See
Figure 6 Timing diagram.
f
t
t
t
t
t
t
t
t
t
t
t
t
TI
t
SCL
LOW
HIGH
BUF
SU:STA
HD:STA
SU:STO
AA
DH
R
F
SU:DAT
HD:DAT
WR
2
C 2-WIRE SERIAL INTERFACE AC OPERATING CHARACTERISTICS - 100kHz
SC L
SD A
SD A
Symbol
(O UT )
(IN)
t
SU:SDA
t
R
Description
SCL Clock Frequency
Clock Low Period
Clock High Period
Bus Free Time
Start Condition Setup Time
Start Condition Hold Time
Stop Condition Setup Time
Clock Edge to Data Valid
Data Output Hold Time
SCL and SDA Rise Time
SCL and SDA Fall Time
Data In Setup Time
Data In Hold Time
Noise Filter SCL and SDA
Write Cycle Time
t
AA
t
HD:SDA
Figure 6 . Basic I
t
F
t
t
HD:DAT
HIG H
2061 1.0 8/16/02
2
C Serial Interface Timing
Before New Transmission
Note 1/
SCL low (cycle n+1) to SDA
change
Note 1/
Note 1/
SCL low to valid SDA (cycle n)
Noise suppression
VGG_CAP Capacitor =1uF,
t
LO W
t
DH
VGG_CAP=10.5V
Conditions
t
SU:DAT
t
SU:STO
Min
250
4.7
4.0
4.7
4.7
4.0
4.7
0.2
0.2
0
0
t
t
Preliminary Information
BUF
W R (For W rite O peration O nly)
Typ
100
SMT4214
1000
Max
100
300
100
3.5
Units
KHz
ms
10
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns