Preliminary document
Specifications in this document are tentative and subject to change.
Under development
R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
5. Electrical Characteristics
(1)
Table 5.14
Timing Requirements of SSU
Standard
Symbol
Parameter
Conditions
Unit
Min.
Typ.
−
Max.
(2)
tSUCYC
tHI
SSCK clock cycle time
SSCK clock “H” width
SSCK clock “L” width
4
−
0.6
0.6
1
tCYC
0.4
−
tSUCYC
tSUCYC
tLO
0.4
−
(2)
tRISE
SSCK clock rising
time
Master
Slave
−
−
tCYC
−
−
1
µs
(2)
tFALL
SSCK clock falling
time
Master
Slave
−
−
1
tCYC
−
100
−
1
µs
tSU
SSO, SSI data input setup time
SSO, SSI data input hold time
−
−
ns
(2)
tH
1
−
−
tCYC
tLEAD
Slave
Slave
1tCYC + 50
−
−
ns
ns
SCS setup time
SCS hold time
tLAG
1tCYC + 50
−
−
(2)
tOD
tSA
tOR
SSO, SSI data output delay time
SSI slave access time
−
−
−
−
−
−
1
tCYC
2.7 V ≤ VCC ≤ 5.5 V
2.7 V ≤ VCC ≤ 5.5 V
1.5tCYC + 100
1.5tCYC + 100
ns
ns
SSI slave out open time
Notes:
1. The measurement condition is VCC = 2.7 to 5.5 V and Topr = −40 to 85°C (J version) / −40 to 125°C (K version).
2. 1tCYC = 1/f1(s)
REJ03B0312-0010 Rev.0.10
Apr 09, 2010
Page 53 of 67
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