r8a66120ffa Renesas Electronics Corporation., r8a66120ffa Datasheet - Page 9

• Manufacturer Part Number: r8a66120ffa
• Description: 4m-bit X 2 Multiple Field Memory
• Manufacturer: Renesas Electronics Corporation.

REJ03F0161-0170 Rev.1.70 May.16.2008
R8A66120FFA
Read Cycle
Read Reset and Read Enable Combination Cycle
Read Reset Cycle
page 9 of 14
RRES
RRES
CK
RE
Qn
CK
Qn
CK
RE
Qn
Note: There is no timing restriction of RE to RRES.
t
n-1
n
t
AC
CK
t
cycle
AC
t
t
CK
cycle
n
AC
t
cycle
CK
(n)
(n-1)
t
(n)
t
OH
t
t
CKH
RRESH
OH
n+1
t
OH
t
n
t
CKH
AC
n+1
cycle
cycle
t
CKL
t
cycle
RRESS
(n+1)
t
CKL
(n+1)
(n)
t
t
OH
n+2
REH
t
REH
n+2
t
AC
cycle
t
cycle
RES
t
RES
(n+2)
(n+2)
t
OH
t
t
Reset cycle
RRESH
t
OH
ODIS
t
ODIS
Disable time
t
RRESS
t
RRESH
t
HIGH-Z
t
REH
RRESH
Disable cycle
t
RRESS
t
t
HIGH-Z
RES
RRESS
t
OEN
t
0
n+3
REH
t
cycle
AC
cycle
t
RES
(n+3)
In case of RRES = “H”
In case of RE = “L”
(0)
t
t
OH
OEN
n+4
1
cycle
0
cycle
cycle
(n+4)
(1)
(0)
t
OH
t
1
AC
cycle
(1)