R5F21346UNFP Datasheet, PDF (48/61 Pages) Renesas Technology Corp – The R8C/34U Group has data flash (1 KB × 4 blocks) with the background operation (BGO)

R8C/34U Group
5. Electrical Characteristics
Timing Requirements (Unless Otherwise Specified: VCC = 5 V, VSS = 0 V, Topr = 25 °C)
Table 5.19 External Clock Input (XOUT)
Symbol
tc(XOUT)
tWH(XOUT)
tWL(XOUT)
XOUT input cycle time
XOUT input “H” width
XOUT input “L” width
Parameter
Standard
Unit
Min.
Max.
50
—
ns
24
—
ns
24
—
ns
External clock input
tWH(XOUT)
tC(XOUT)
tWL(XOUT)
Figure 5.10 External Clock Input Timing Diagram when VCC = 5 V
VCC = 5 V
Table 5.20 TRAIO Input
Symbol
tc(TRAIO)
tWH(TRAIO)
tWL(TRAIO)
TRAIO input cycle time
TRAIO input “H” width
TRAIO input “L” width
Parameter
TRAIO input
tWH(TRAIO)
tC(TRAIO)
tWL(TRAIO)
Figure 5.11 TRAIO Input Timing Diagram when VCC = 5 V
Standard
Unit
Min.
Max.
100
—
ns
40
—
ns
40
—
ns
VCC = 5 V
Table 5.21 TRFI Input
Symbol
tc(TRFI)
tWH(TRFI)
tWL(TRFI)
TRFI input cycle time
TRFI input “H” width
TRFI input “L” width
Parameter
Standard
Unit
Min.
Max.
400 ⁽¹⁾
—
ns
200 ⁽²⁾
—
ns
200 ⁽²⁾
—
ns
Notes:
1. When using timer RF input capture mode, adjust the cycle time to (1/timer RF count source frequency × 3) or above.
2. When using timer RF input capture mode, adjust the pulse width to (1/timer RF count source frequency × 1.5) or above.
TRFI input
Figure 5.12
tWH(TRFI)
tc(TRFI)
tWL(TRFI)
TRFI Input Timing Diagram when VCC = 5 V
VCC = 5 V
R01DS0039EJ0100 Rev.1.00
Feb 25, 2011
Page 48 of 58