MITSUBISHI MICROCOMPUTERS
M37905F8CFP, M37905F8CSP
16-BIT CMOS MICROCOMPUTER
External clock input
Timing Requirements (VCC = 5 V±0.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Symbol Parameter
Limits
Unit
Min.
50
Max.
tc
External clock input cycle time
ns
ns
ns
ns
ns
ns
tw(half)
tw(H)
tw(L)
tr
External clock input pulse width with half input-voltage
External clock input high-level pulse width
External clock input low-level pulse width
External clock input rise time
0.45 tc
0.5 tc – 8
0.5 tc – 8
0.55 tc
8
8
tf
External clock input fall time
External clock input
t
c
tr
tf
t
w(L)
t
w(H)
tw(half)
XIN
Test conditions
• Vcc = 5 V ± 0.5 V, Ta = –20 to 85 °C
• Input timing voltage : VIL = 1.0 V, VIH = 4.0 V (tw(H), tw(L), t
• Output timing voltage : 2.5 V (t
r
, t )
f
c, tw(half))
31
RENESAS [ RENESAS TECHNOLOGY CORP ]
