UPD70F3102-33 NEC [NEC], UPD70F3102-33 Datasheet - Page 48

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

48
WAIT setup time (to CLKOUT )
WAIT hold time (from CLKOUT )
Row address setup time
Row address hold time
Column address setup time
Column address hold time
Read/write cycle time
RAS precharge time
RAS pulse time
RAS hold time
Column address read time (from
RAS )
CAS pulse width
CAS to RAS precharge time
CAS hold time
CAS precharge time
RAS column address delay time
RAS to CAS delay time
WE setup time (to CAS )
WE hold time (from CAS )
Data setup time (to CAS )
Data hold time (from CAS )
Remarks 1. T = t
(c) Write timing (high-speed page DRAM access, normal access: off-page) (1/2)
Parameter
2. w: Number of waits due to WAIT
3. w
4. w
5. w
RP
RH
DA
: Number of waits specified by RPCxx 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)
: Number of waits specified by RHCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
CYK
<24>
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Symbol
Preliminary Data Sheet U13844EJ2V0DS00
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
HKW
t
WCS
WCH
t
SWK
RAH
CAH
t
RSH
CRP
CSH
CPN
RAD
RCD
t
ASR
ASC
RAS
RAL
CAS
RC
RP
DS
DH
Conditions
(3 + w
(2 + w
(1.5 + w
(2 + w
(1 + w
(1.5 + w
(1.5 + w
(1.5 + w
(2.5 + w
(2 + w
(1 + w
(1 + w
(0.5 + w
(0.5 + w
(0.5 + w
(0.5+ w
(1 + w
(1 + w
RP
RH
RP
RP
0.5T – 10
DA
DA
+ w
DA
+ w
RP
T – 10
DA
T – 10
DA
DA
RH
MIN.
+ w
+ w
RH
RH
+ w) T – 10
+ w) T – 10
+ w) T – 10
+ w
15
RH
RP
RP
RH
2
DA
+ w) T – 10
RH
+ w) T – 10
+ w) T – 10
+ w
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
RH
RH
+ w) T – 10
+ w
RH
) T – 10
) T – 10
DA
) T – 10
DA
+ w)
+ w)
MAX.
PD70F3102-33
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns