pdiusbh11 NXP Semiconductors, pdiusbh11 Datasheet - Page 22

• Manufacturer Part Number: pdiusbh11
• Description: Universal Serial Bus Hub
• Manufacturer: NXP Semiconductors

1. A detailed description of the I
Philips Semiconductors
AC CHARACTERISTICS (I
All timing values are valid within the operating supply voltage and ambient temperature range and reference to V
swing of V
1997 Aug 01
I
2
Universal Serial Bus Hub
C-bus timing (see Figure ; Note )
may be ordered using the code 9398 393 40011.
PROTOCOL
SCL
SDA
SYMBOL
SYMBOL
t
t
t
t
t
t
HD;STA
SU;DAT
HD;DAT
VD;DAT
SU;STO
SU;STA
t
t
f
t
HIGH
LOW
t
BUF
SCL
SP
t
t
r
f
SS
and V
DD
SCL clock frequency
Tolerable spike width on bus
Bus free time
Start condition set-up time
Start condition hold time
SCL LOW time
SCL HIGH time
SCL and SDA rise times
SCL and SDA fall times
Data set-up time
Data hold time
SCL LOW to data out valid
Stop condition set-up time
t
.
SU;STA
t
BUF
CONDITION
START
(S)
t
HD;STA
2
Figure 4. I
C-bus specification, with applications, is given in brochure ‘‘ The I
2
C)
t
LOW
PARAMETER
PARAMETER
t
r
BIT 7
MSB
(A7)
2
C-bus timing diagram; rise and fall times refer to V
t
HIGH
t
t
f
SU;DAT
1/f
BIT 6
(A6)
SCL
22
t
HD;DAT
MIN
250
4.7
4.7
4.0
4.7
4.0
4.0
–
–
–
–
0
–
BIT 0
LSB
(R/W)
t
VD:DAT
ACKNOWLEDGE
2
C-bus and how to use it ”. This brochure
LIMITS
TYP
IL
(A)
–
–
–
–
–
–
–
–
–
–
–
–
–
and V
IH
IL
and V
CONDITION
MAX
STOP
100
100
PDIUSBH11
1.0
0.3
3.4
(P)
IH
–
–
–
–
–
–
–
–
t
SU;STO
Product specification
with an input voltage
UNIT
UNIT
kHZ
SV00756
ns
ns
ns
s
s
s
s
s
s
s
s
s