R8C34C_15 Datasheet, PDF (45/57 Pages) Renesas Technology Corp – RENESAS MCU

R8C/34C 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 5.10 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 to 4) Input, Key Input Interrupt KIi (i = 0 to 3)
Symbol
tW(INH)
tW(INL)
Parameter
INTi input “H” width, KIi input “H” width
INTi input “L” width, KIi input “L” width
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 to 4)
KIi input
(i = 0 to 3)
tW(INL)
tW(INH)
VCC = 5 V
Figure 5.11 Input Timing Diagram for External Interrupt INTi and Key Input Interrupt KIi when
Vcc = 5 V
R01DS0007EJ0100 Rev 1.00
Aug. 24, 2010
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