W90N745CD Datasheet, PDF (402/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
SYMBOL
F_USI
T_CLKH
T_CLKL
T_ISU
T_IH
T_lead
T_lag
T_OD
DESCRIPTION
USI clock frequency
USI clock high time
USI clock low time
Data input setup time
Data input hold time
USI enable lead time
USI enable lag time
USI output data valid time
7.3.8 PS2 Interface AC Characteristics
T3
T4
PS2_CLK
1st
CLK
2nd
CLK
T1
T2
PS2_DATA ^{Start Bit}
Bit 0
MIN MAX UNIT
-
20 MHz
12.5
-
ns
-
-
ns
-
14
ns
0
-
ns
12.5
-
ns
12.5
-
ns
-
30
ns
10th
CLK
11th
CLK
T5
Parity Bit
Timing for data received from the auxiliary device
PS2_CLK
T7 T8
1st
2nd
9th
CLK
CLK
CLK
10th
CLK
11th
CLK
PS2_DATA
T9
Bit 0
Parity Bit _{STOP Bit}
Timing for data send to the auxiliary device
Publication Release Date: September 22, 2006
- 397 -
Revision A2