參數(shù)資料
型號: UPD78P4038YGK
廠商: NEC Corp.
英文描述: RECTIFIER BRIDGE 2A 50V 65A-ifsm 1.1V-vf 5uA-ir KBP 35/TUBE
中文描述: 16/8-BIT單片機
文件頁數(shù): 37/72頁
文件大?。?/td> 435K
代理商: UPD78P4038YGK
μ
PD78P4038Y
37
(3) External wait timing
Remarks
T:
t
CYK
(system clock cycle time)
1 (during address wait), otherwise, 0
Number of wait states (n
0)
a:
n:
(4) Refresh timing
Remark
T: t
CYK
(system clock cycle time)
Parameter
Delay from address to WAIT
input
Delay from ASTB
to WAIT
input
Hold time from ASTB
to WAIT
Delay from ASTB
to WAIT
Delay from RD
to WAIT
input
Hold time from RD
to WAIT
Delay from RD
to WAIT
Delay from WAIT
to data input
Delay from WAIT
to WR
Delay from WAIT
to RD
Delay from WR
to WAIT
input
Hold time from WR
to WAIT
Delay from WR
to WAIT
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
MIN.
(0.5 + n) T + 5
(0.5 + n) T +10
nT + 5
nT + 10
0.5T
0.5T
nT + 5
nT + 10
MAX.
(2 + a) T – 40
(2 + a) T – 60
1.5T – 40
1.5T – 60
(1.5 + n) T – 40
(1.5 + n) T – 60
T – 50
T – 70
(1 + n) T – 40
(1 + n) T – 60
0.5T – 5
0.5T – 10
T – 50
T – 75
(1 + n) T – 40
(1 + n) T – 70
Conditions
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
Symbol
t
DAWT
t
DSTWT
t
HSTWTH
t
DSTWTH
t
DRWTL
t
HRWT
t
DRWTH
t
DWTID
t
DWTW
t
DWTR
t
DWWTL
t
HWWT
t
DWWTH
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Parameter
Random read/write cycle time
REFRQ low-level pulse width
Delay from ASTB
to REFRQ
Delay from RD
to REFRQ
Delay from WR
to REFRQ
Delay from REFRQ
to ASTB
REFRQ high-level pulse width
MAX.
MIN.
3T
1.5T – 25
1.5T – 30
0.5T – 9
1.5T – 9
1.5T – 9
0.5T – 15
1.5T – 25
1.5T – 30
Symbol
t
RC
t
WRFQL
t
DSTRFQ
t
DRRFQ
t
DWRFQ
t
DRFQST
t
WRFQH
Conditions
V
DD
= +5.0 V
±
10%
V
DD
= +5.0 V
±
10%
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