NEC 78K0 User Manual page 419

CHAPTER 25 ELECTRICAL SPECIFICATIONS (STANDARD PRODUCTS, (A) GRADE PRODUCTS)
= −40 to +85°C, 2.7 V ≤ V
(2) Serial interface (T
A
(a) UART mode (UART6, dedicated baud rate generator output)
Parameter
Transfer rate
(b) UART mode (UART0, dedicated baud rate generator output)
Parameter
Transfer rate
(c) 3-wire serial I/O mode (master mode, SCK10... internal clock output)
Parameter
SCK10 cycle time
SCK10 high-/low-level width
SI10 setup time (to SCK10↑)
SI10 hold time (from SCK10↑)
Delay time from SCK10↓ to
SO10 output
Note C is the load capacitance of the SCK10 and SO10 output lines.
(d) 3-wire serial I/O mode (slave mode, SCK10... external clock input)
Parameter
SCK10 cycle time
SCK10 high-/low-level width
SI10 setup time (to SCK10↑)
SI10 hold time (from SCK10↑)
Delay time from SCK10↓ to
SO10 output
Note C is the load capacitance of the SO10 output line.
= EV
DD DD
Symbol Conditions
Symbol Conditions
Symbol Conditions
4.0 V ≤ V ≤ 5.5 V
t
KCY1 DD
3.3 V ≤ V
< 4.0 V
DD
2.7 V ≤ V
< 3.3 V
DD
t ,
KH1
t
KL1
t
SIK1
t
KSI1
Note
t C = 100 pF
KSO1
Symbol Conditions
t
KCY2
t ,
KH2
t
KL2
t
SIK2
t
KSI2
Note
t C = 100 pF
KSO2
User's Manual U16227EJ2V0UD
≤ 5.5 V, 2.7 V ≤ AV ≤ V
REF DD
MIN.
MIN.
MIN.
200
240
400
/2 − 10
t
KCY1
30
30
MIN.
400
t /2
KCY2
80
50
, V = EV = AV = 0 V)
SS SS SS
TYP. MAX. Unit
312.5 kbps
TYP. MAX. Unit
312.5 kbps
TYP. MAX. Unit
ns
ns
ns
ns
ns
ns
30 ns
TYP. MAX. Unit
ns
ns
ns
ns
120 ns
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