参数资料
型号: R5F21386CDFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80
封装: 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80
文件页数: 43/57页
文件大小: 529K
代理商: R5F21386CDFP
R8C/38C Group
5. Electrical Characteristics
REJ03B0295-0100 Rev.1.00
Page 48 of 54
Apr 23, 2010
Timing requirements
(Unless Otherwise Specified: VCC = 3 V, VSS = 0 V, Topr = 25
°C)
Figure 5.13
External Clock Input Timing Diagram when VCC = 3 V
Figure 5.14
TRAIO Input Timing Diagram when VCC = 3 V
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.
Figure 5.15
TRFI Input Timing Diagram when VCC = 3 V
Table 5.26
External Clock Input (XOUT, XCIN)
Symbol
Parameter
Standard
Unit
Min.
Max.
tc(XOUT)
XOUT input cycle time
50
ns
tWH(XOUT)
XOUT input “H” width
24
ns
tWL(XOUT)
XOUT input “L” width
24
ns
tc(XCIN)
XCIN input cycle time
14
s
tWH(XCIN)
XCIN input “H” width
7
s
tWL(XCIN)
XCIN input “L” width
7—
s
Table 5.27
TRAIO Input
Symbol
Parameter
Standard
Unit
Min.
Max.
tc(TRAIO)
TRAIO input cycle time
300
ns
tWH(TRAIO)
TRAIO input “H” width
120
ns
tWL(TRAIO)
TRAIO input “L” width
120
ns
Table 5.28
TRFI Input
Symbol
Parameter
Standard
Unit
Min.
Max.
tc(TRFI)
TRFI input cycle time
TBD (1)
—ns
tWH(TRFI)
TRFI input “H” width
TBD (2)
—ns
tWL(TRFI)
TRFI input “L” width
TBD (2)
—ns
External clock input
tWH(XOUT),
tWH(XCIN)
tC(XOUT), tC(XCIN)
tWL(XOUT), tWL(XCIN)
VCC = 3 V
TRAIO input
VCC = 3 V
tC(TRAIO)
tWL(TRAIO)
tWH(TRAIO)
tWH(TRFI)
tc(TRFI)
tWL(TRFI)
TRFI input
VCC = 3 V
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