UPD70F3102-33 NEC [NEC], UPD70F3102-33 Datasheet - Page 50

• Manufacturer Part Number: UPD70F3102-33
• Description: 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC [NEC]

50
Column address setup time
Column address hold time
RAS hold time
Column address read time (from
RAS )
CAS pulse width
CAS precharge time
RAS hold time for CAS precharge
WE setup time (to CAS )
WE hold time (from CAS )
Data setup time (to CAS )
Data hold time (from CAS )
WE read time (from RAS )
WE read time (from CAS )
Data setup time (to WE )
Data hold time (from WE )
WE pulse width
Remarks 1. T = t
(d) Write timing (high-speed page DRAM access: on-page) (1/2)
Parameter
2. w
3. w
CP
DA
: Number of waits specified by CPCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
: Number of waits specified by DACxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
CYK
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Symbol
Preliminary Data Sheet U13844EJ2V0DS00
t
t
t
t
t
t
t
t
t
t
t
t
DSWE
DHWE
RHCP
WCS
WCH
t
t
CAH
RSH
t
t
RWL
CWL
ASC
RAL
CAS
WP
CP
DS
DH
Conditions
w
w
w
w
w
w
CP
CP
CP
CP
CP
CP
= 0
= 0
= 0
= 0
= 0
1
(2.5 + w
(2 + w
(0.5 + w
(1.5 + w
(1.5 + w
(0.5 + w
(1.5 + w
(1.5 + w
(1.5 + w
(1 + w
(1 + w
(1 + w
(1 + w
(1 + w
CP
w
0.5T – 10
CP
CP
MIN.
+ w
DA
CP
DA
DA
DA
T – 10
+ w
CP
DA
DA
CP
DA
DA
DA
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
DA
DA
) T – 10
) T – 10
MAX.
PD70F3102-33
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns