APPENDIX
Appendix 9. M37906M4C-XXXFP electrical characteristics
External clock input
Timing Requirements (VCC = 5 V±0.5 V, VSS = 0 V, Ta = –20 to 85 °C, f(XIN) = 20 MHz, unless otherwise noted)
Limits
Symbol
Parameter
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)
f(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
• Input timing voltage : 2.5 V (t
r
, t )
f
c, tw(half))
7906 Group User’s Manual Rev.2.0
20-116
RENESAS [ RENESAS TECHNOLOGY CORP ]
