UPD70F3102-33 NEC [NEC], UPD70F3102-33 Datasheet - Page 65

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

CLKOUT (Output)
REFRQ active delay time
(from CLKOUT )
REFRQ inactive delay time
(from CLKOUT )
CAS hold time
RAS precharge time
REFRQ (Output)
Output signals
other than above
Remarks 1. T = t
Remarks 1. These timings are for the following cases:
UCAS (Output)
(j) CBR self refresh timing
RASn (Output)
LCAS (Output)
Parameter
2. w
2. Broken lines indicate high impedance.
3. n = 0 to 7
SRW
Number of waits (TRRW) specified by bits RRW0 and RRW1 of register RWC: 1
Number of waits (TRCW) specified by bits RCW0 to RCW2 of register RWC: 1
Number of waits (TSRW) specified by bits SRW0 to SRW2 of register RWC: 2
CYK
: Number of waits specified by bits SRW0 to SRW2 of register RWC.
TRRW
<111>
<111>
<112>
<114>
<115>
Symbol
TH
Preliminary Data Sheet U13844EJ2V0DS00
t
t
t
t
DKRF
HKRF
CHS
RPS
TH
Conditions
TH
TRCW
(1 + 2w
MIN.
SRW
–5
2
2
) T – 10
TH
<112>
TI
<114>
PD70F3102-33
MAX.
TSRW
10
10
<115>
TSRW
Unit
ns
ns
ns
ns
65