Datasheet

R8C/L35C Group, R8C/L36C Group, R8C/L38C Group, R8C/L3AC Group 5. Electrical Characteristics
R01DS0095EJ0101 Rev.1.01 Page 68 of 72
Apr 15, 2011
i = 0 to 2
Figure 5.10 Input and Output Timing of Serial Interface
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.
Figure 5.11 Input Timing of External Interrupt INTi and Key Input Interrupt KIi
Table 5.27 Timing Requirements of Serial Interface
(V
CC
= 1.8 to 5.5 V, V
SS
= 0 V, and T
opr
=
20 to 85
°
C (N version) /
40 to 85
°
C (D version),
unless otherwise specified.)
Symbol Parameter
Standard
UnitVCC = 2.2V, Topr = 25°CVCC = 3V, Topr = 25°CVCC = 5V, Topr = 25°C
Min. Max. Min. Max. Min. Max.
t
c(CK) CLKi input cycle time 800 300 200 ns
t
W(CKH) CLKi input “H” width 400 150 100 ns
t
W(CKL) CLKi input “L” width 400 150 100 ns
t
d(C-Q) TXDi output delay time 200 80 50 ns
t
h(C-Q) TXDi hold time 0 0 0 ns
t
su(D-C) RXDi input setup time 150 70 50 ns
t
h(C-D) RXDi input hold time 90 90 90 ns
Table 5.28 Timing Requirements of External Interrupt INTi (i = 0 to 7) and Key Input Interrupt KIi
(i = 0 to 7)
(V
CC
= 1.8 to 5.5 V, V
SS
= 0 V, and T
opr
=
20 to 85
°
C (N version) /
40 to 85
°
C (D version),
unless otherwise specified.)
Symbol Parameter
Standard
Unit
V
CC
= 2.2V, Topr = 25
°
CV
CC
= 3V, Topr = 25
°
CV
CC
= 5V, Topr = 25
°
C
Min. Max. Min. Max. Min. Max.
t
W(INH)
INTi input “H” width, KIi input “H” width
1000
(1)
380
(1)
250
(1)
ns
t
W(INL)
INTi input “L” width, KIi input “L” width
1000
(2)
380
(2)
250
(2)
ns
tW(CKH)
tC(CK)
tW(CKL)
th(C-Q)
th(C-D)
tsu(D-C)td(C-Q)
CLKi
TXDi
RXDi
i = 0 to 2
INTi input
(i = 0 to 7)
tW(INL)
tW(INH)
KIi input
(i = 0 to 7)