Preliminary document
Specifications in this document are tentative and subject to change.
Under development
R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
5. Electrical Characteristics
tC(CK)
VCC = 3 V
tW(CKH)
CLKi
tW(CKL)
th(C-Q)
TXDi
td(C-Q)
tsu(D-C)
th(C-D)
RXDi
i = 0, 2
Figure 5.13
Serial Interface Timing Diagram when VCC = 3 V
Table 5.28
External Interrupt INTi (i = 0 to 4) Input, Key Input Interrupt KIi (i = 0 to 3)
Standard
Symbol
Parameter
Unit
Min.
Max.
(1)
tW(INH)
tW(INL)
−
−
ns
ns
380
380
INTi input “H” width, KIi input “H” width
INTi input “L” width, KIi input “L” width
(2)
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.
VCC = 3 V
INTi input
(i = 0 to 4)
tW(INL)
KIi input
(i = 0 to 3)
tW(INH)
Figure 5.14
Input Timing for External Interrupt INTi and Key Input Interrupt KIi when Vcc = 3 V
REJ03B0312-0010 Rev.0.10
Apr 09, 2010
Page 66 of 67
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