mb90f378 Fujitsu Microelectronics, Inc., mb90f378 Datasheet - Page 48

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

48
MB90378 Series
Notes : • These are AC ratings in the CLK synchronous mode.
(4) UART1 to UART3
Serial clock cycle time
UCK ↓ → UO delay time
Valid UI → UCK ↑
UCK ↑ → valid UI hold time
Serial clock “H” pulse width
Serial clock “L” pulse width
UCK ↓ → UO delay time
Valid UI → UCK ↑
UCK ↑ → valid UI hold time
• C
• t
Parameter
CP
L
is the load capacitance value connected to pins while testing.
is the internal operating clock cycle time. Refer to “(1) Clock Timings” rating for t
(V
CC
Symbol
= 2.7 V to 3.6 V, AV
t
t
t
t
t
t
t
t
t
SCYC
SLOV
SHSL
SLSH
SLOV
IVSH
SHIX
IVSH
SHIX
UCK1 to UCK3,
UCK1 to UCK3,
UCK1 to UCK3,
UCK1 to UCK3,
UCK1 to UCK3,
UCK1 to UCK3,
UCK1 to UCK3
UCK1 to UCK3
UCK1 to UCK3
UO1 to UO3
UO1 to UO3
Pin name
UI1 to UI3
UI1 to UI3
UI1 to UI3
UI1 to UI3
CC
= 2.7 V to 3.6 V, V
C
for an output pin of
internal shift clock
mode
C
for an output pin of
external shift clock
mode
L
L
= 80 pF + 1 TTL
= 80 pF + 1 TTL
Condition
SS
= AV
SS
4 t
4 t
4 t
Min
−80
100
= 0.0 V, T
t
60
60
⎯
CP
CP
CP
CP
Value
Max
150
80
⎯
⎯
⎯
⎯
⎯
⎯
⎯
A
= −40 °C to +85 °C)
CP
.
Unit Remarks
ns
ns
ns
ns
ns
ns
ns
ns
ns