Datasheet

R01DS0063EJ0120 Rev.1.20 Page 69 of 95
Feb 6, 2013
R32C/116 Group 5. Electrical Characteristics
V
CC
=5V
Timing Requirements (V
CC
= 4.2 to 5.5 V, V
SS
= 0 V, and T
a
=T
opr
, unless otherwise noted)
Table 5.20 External Clock Input
Symbol Characteristic
Value
Unit
Min. Max.
t
c
(X)
External clock input period
62.5 250 ns
t
w(XH)
External clock input high level pulse width
25 ns
t
w(XL)
External clock input low level pulse width
25 ns
t
r
(X)
External clock input rise time
5ns
t
f
(X)
External clock input fall time
5ns
t
w
/ t
c
External clock input duty
40 60 %
Table 5.21 External Bus Timing
Symbol Characteristic
Value
Unit
Min. Max.
t
su
(D-R)
Data setup time before read
40
ns
t
h
(R-D)
Data hold time after read
0ns
t
dis
(R-D)
Data disable time after read
0.5 × t
c(Base)
+ 10
ns