mpc8308 Freescale Semiconductor, Inc, mpc8308 Datasheet - Page 57

• Manufacturer Part Number: mpc8308
• Description: Mpc8308 Powerquicc Ii Pro Processor Hardware Specification
• Manufacturer: Freescale Semiconductor, Inc

All values refer to V
Setup time for STOP condition
Bus free time between a STOP and START condition
Noise margin at the LOW level for each connected device (including hysteresis)
Noise margin at the HIGH level for each connected device (including hysteresis)
Notes:
1. The symbols used for timing specifications follow the pattern of t
2. The device provides a hold time of at least 300 ns for the SDA signal (referred to the V
3. The maximum t
4. C
5. The device does not follow the I
Figure 45
Figure 46
Freescale Semiconductor
inputs and t
with respect to the time data input signals (D) reach the valid state (V) relative to the t
(H) state or setup time. Also, t
went invalid (X) relative to the t
(I2) for the time that the data with respect to the stop condition (P) reaching the valid state (V) relative to the t
(K) going to the high (H) state or setup time. For rise and fall times, the latter convention is used with the appropriate letter: R
(rise) or F (fall).
undefined region of the falling edge of SCL.
B
SDA
= capacitance of one bus line in pF.
SCL
provides the AC test load for the I
shows the AC timing diagram for the I
(first two letters of functional block)(reference)(state)(signal)(state)
S
IH
I2DXKL
(min) and V
t
I2CF
t
I2CL
t
I2SXKL
has only to be met if the device does not stretch the low period (t
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 1
Output
IL
(max) levels (see
Table 44. I
I2SXKL
I2C
2
C-BUS Specifications, Version 2.1, regarding the t
clock reference (K) going to the low (L) state or hold time. Also, t
Parameter
symbolizes I
Figure 46. I
t
I2DXKL
2
C AC Electrical Specifications (continued)
Table
Figure 45. I
Z
t
I2DVKH
0
2
= 50 Ω
43).
C timing (I2) for the time that the data with respect to the start condition (S)
t
I2CH
2
2
C.
C Bus AC Timing Diagram
t
2
I2SXKL
2
C bus.
C AC Test Load
(first two letters of functional block)(signal)(state) (reference)(state)
for outputs. For example, t
Sr
t
I2SVKH
t
I2KHKL
R
L
= 50 Ω
I2CF
I2C
IHmin
t
I2CL
AC parameter.
Symbol
I2PVKH
clock reference (K) going to the high
t
t
I2PVKH
NV
I2KHDX
V
V
I2DVKH
) of the SCL signal.
of the SCL signal) to bridge the
NH
NL
DD
t
I2CR
/2
I2PVKH
1
symbolizes I
0.1 × NV
0.2 × NV
P
symbolizes I
Min
0.6
1.3
t
I2CF
I2C
DD
DD
clock reference
2
C timing (I2)
S
Max Unit
—
—
—
—
2
C timing
for
μs
μs
V
V
I
57
2
C