參數(shù)資料
型號(hào): μPD784038
廠(chǎng)商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
中文描述: 8 / 16位單片機(jī)微控制器(8 / 16位單片微控制器)
文件頁(yè)數(shù): 71/98頁(yè)
文件大?。?/td> 650K
代理商: ΜPD784038
71
μ
PD784035, 784036, 784037, 784038
(3) External wait timing
Remarks
T: T
CYK
(system clock cycle time)
a: 1 (during address wait), otherwise, 0
n: Number of wait states (n
0)
(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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