UPD784035YGC NEC, UPD784035YGC Datasheet - Page 70

• Manufacturer Part Number: UPD784035YGC
• Description: 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: NEC

70
WAIT input time from
address
WAIT input time from
ASTB
WAIT hold time from
ASTB
WAIT delay time from
ASTB
WAIT input time from
RD
WAIT hold time from
RD
WAIT delay time from
RD
Data input time from
WAIT
WR delay time from
WAIT
RD delay time from
WAIT
WAIT input time from
WR
WAIT hold time from
WR
WAIT delay time from
WR
Random read/write cycle
time
REFRQ low-level pulse
width
REFRQ delay time from t
ASTB
REFRQ delay time from t
RD
REFRQ delay time from t
WR
ASTB delay time from
REFRQ
REFRQ high-level pulse t
width
(3) External wait timing
(4) Refresh timing
Remark T: T
Remark T: T
Parameter
Parameter
a: 1 (during address wait), otherwise, 0
n: Number of wait states (n
CYK
CYK
(system clock cycle time)
(system clock cycle time)
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DAWT
DSTWT
HSTWTH
DSTWTH
DRWTL
HRWT
DRWTH
DWTID
DWTW
DWTR
DWWTL
HWWT
DWWTH
RC
WRFQL
DSTRFQ
DRRFQ
DWRFQ
DRFQST
WRFQH
V
V
V
V
V
V
V
V
V
V
V
V
V
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
= +5.0 V 10%
0)
Conditions
Conditions
PD784035Y, 784036Y, 784037Y, 784038Y
(0.5+n)T+10
(0.5+n)T+5
1.5T–25
1.5T–30
0.5T–15
1.5T–25
1.5T–30
0.5T–9
1.5T–9
1.5T–9
nT+10
nT+10
nT+5
nT+5
MIN.
MIN.
0.5T
0.5T
3T
(1.5+n)T–40
(1.5+n)T–60
(2+a)T–40
(2+a)T–60
(1+n)T–40
(1+n)T–60
(1+n)T–40
(1+n)T–70
1.5T–40
1.5T–60
0.5T–10
0.5T–5
MAX.
MAX.
T–50
T–70
T–75
T–5
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns