R8C-2 Datasheet, PDF (50/64 Pages) Renesas Technology Corp – MCU

R8C/2A Group, R8C/2B Group
5. Electrical Characteristics
Table 5.21 Serial Interface
Symbol
tc(CK)
tW(CKH)
tW(CKL)
td(C-Q)
th(C-Q)
tsu(D-C)
th(C-D)
i = 0 to 2
CLKi input cycle time
CLKi input “H” width
CLKi input “L” width
TXDi output delay time
TXDi hold time
RXDi input setup time
RXDi input hold time
Parameter
Standard
Unit
Min.
Max.
200
−
ns
100
−
ns
100
−
ns
−
50
ns
0
−
ns
50
−
ns
90
−
ns
CLKi
tW(CKH)
tC(CK)
tW(CKL)
TXDi
RXDi
td(C-Q)
tsu(D-C)
i = 0 to 2
Figure 5.11 Serial Interface Timing Diagram when VCC = 5 V
VCC = 5 V
th(C-Q)
th(C-D)
Table 5.22 External Interrupt INTi (i = 0, 2, 3) Input
Symbol
tW(INH)
tW(INL)
INT0 input “H” width
INT0 input “L” width
Parameter
Standard
Unit
Min.
Max.
250⁽¹⁾
−
ns
250⁽²⁾
−
ns
NOTES:
1. When selecting the digital filter by the INTi input filter select bit, use an INTi input HIGH width of either (1/digital filter clock
frequency × 3) or the minimum value of standard, whichever is greater.
2. When selecting the digital filter by the INTi input filter select bit, use an INTi input LOW width of either (1/digital filter clock
frequency × 3) or the minimum value of standard, whichever is greater.
INTi input
i = 0, 2, 3
tW(INL)
tW(INH)
Figure 5.12 External Interrupt INTi Input Timing Diagram when VCC = 5 V
VCC = 5 V
Rev.2.10 Nov 26, 2007 Page 50 of 60
REJ03B0182-0210