mb90f378 Fujitsu Microelectronics, Inc., mb90f378 Datasheet - Page 53

• Manufacturer Part Number: mb90f378
• Description: 16-bit Proprietary Microcontroller
• Manufacturer: Fujitsu Microelectronics, Inc.

Note : t
(8) PS/2 Interface Timing
PSCK clock
cycle time
PSCK
Valid PSDA →
PSCK
PSCK
PSDA hold time
PSCK clock
“H” pulse width
PSCK clock
“L” pulse width
• Transmission Mode
• Reception Mode
Parameter
↓
↓
↓
CP
→ PSDA
→ valid
is the internal operating clock cycle time. Refer to “(1) Clock Timings” rating for t
PSCK0
PSCK1
PSCK2
PSDA0
PSDA1
PSDA2
PSDA0
PSDA1
PSDA2
Symbol
t
t
t
t
t
t
PIVSH
PCYC
PLOV
PHSL
PLSH
PHIX
PSCK0 to PSCK2,
PSDA0 to PSDA2
PSCK0 to PSCK2,
PSDA0 to PSDA2
PSCK0 to PSCK2,
PSDA0 to PSDA2
PSCK0 to PSCK2,
PSDA0 to PSDA2
PSCK0 to PSCK2,
PSDA0 to PSDA2
PSCK0 to PSCK2,
PSDA0 to PSDA2
(V
Pin name
CC
= 2.7 V to 3.6 V, AV
0.8 V
CC
Transmission Mode 2 t
Reception Mode
t
0.8 V
0.2 V
PIVSH
Condition
CC
CC
CC
t
PCYC
⎯
⎯
= 2.7 V to 3.6 V, V
t
0.2 V
PHIX
t
PLOV
CC
4 t
1 t
1 t
2 t
2 t
Min
CP
CP
CP
CP
CP
CP
MB90378 Series
SS
Value
Typ
= 0.0 V, T
⎯
⎯
⎯
⎯
⎯
⎯
2.4 V
0.8 V
0.8 V
CP
Max
⎯
⎯
⎯
⎯
⎯
⎯
.
A
CC
= −40 °C to +85 °C)
Unit Remarks
ns
ns
ns
ns
ns
ns
53