R01DS0012EJ0110_15 Datasheet, PDF (61/70 Pages) Renesas Technology Corp – RENESAS MCU

R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
5. Electrical Characteristics
Table 5.20 Serial Interface
Symbol
tc(CK)
tW(CKH)
tW(CKL)
td(C-Q)
th(C-Q)
tsu(D-C)
th(C-D)
td(C-Q)
tsu(D-C)
th(C-D)
i = 0, 2
Parameter
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
TXDi output delay time
RXDi input setup time
RXDi input hold time
Condition
When external clock selected
When internal clock selected
Standard
Unit
Min.
Max.
200
−
ns
100
−
ns
100
−
ns
−
90
ns
0
−
ns
10
−
ns
90
−
ns
−
10
ns
90
−
ns
90
−
ns
CLKi
tW(CKH)
tC(CK)
tW(CKL)
TXDi
RXDi
Figure 5.9
td(C-Q)
tsu(D-C)
i = 0, 2
Serial Interface Timing Diagram when VCC = 5 V
VCC = 5 V
th(C-Q)
th(C-D)
Table 5.21 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 5.10 Input Timing for External Interrupt INTi and Key Input Interrupt KIi when Vcc = 5 V
R01DS0012EJ0110 Rev.1.10
Jan 31, 2013
Page 61 of 67