參數(shù)資料
型號： μPD78F4216Y
廠商： NEC Corp.
英文描述： 8/16 Bit RISC Microcontrollers(8/16位RISC微控制器)
中文描述： 8 / 16位RISC微控制器（8 / 16位的RISC微控制器）
文件頁數(shù)： 29/56頁
文件大小： 407K
代理商： ΜPD78F4216Y
μ
PD78F4216Y
29
Preliminary Data Sheet U11824EJ1V0DS00
AC Characteristics
(2) External wait timing
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
WAIT
↓
input time from address
t
DAWT
V
DD
= 5.0 V
(2 + a) T – 40
200
ns
V
DD
= 3.0 V
(2 + a) T – 60
420
ns
WAIT
↓
input time from ASTB
↓
t
DSTWT
V
DD
= 5.0 V
1.5T – 40
80
ns
V
DD
= 3.0 V
1.5T – 60
180
ns
WAIT hold time from ASTB
↓
t
HSTWT
V
DD
= 5.0 V
(0.5 + n) T + 5
125
ns
V
DD
= 3.0 V
(0.5 + n) T + 10
250
ns
WAIT
↑
delay time from ASTB
↓
t
DSTWTH
V
DD
= 5.0 V
(1.5 + n) T – 40
240
ns
V
DD
= 3.0 V
(1.5 + n) T – 60
500
ns
WAIT
↓
input time from RD
↓
t
DRWTL
V
DD
= 5.0 V
T – 40
40
ns
V
DD
= 3.0 V
T – 60
100
ns
WAIT
↓
hold time from RD
↓
t
HRWT
V
DD
= 5.0 V
nT + 5
85
ns
V
DD
= 3.0 V
nT + 10
170
ns
WAIT
↑
delay time from RD
↓
t
DRWTH
V
DD
= 5.0 V
(1 + n) T – 40
200
ns
V
DD
= 3.0 V
(1 + n) T – 60
420
ns
Data input time from WAIT
↑
t
DWTID
V
DD
= 5.0 V
0.5T – 5
35
ns
V
DD
= 3.0 V
0.5T – 10
70
ns
RD
↑
delay time from WAIT
↑
t
DWTR
V
DD
= 5.0 V
0.5T
40
ns
V
DD
= 3.0 V
0.5T
80
ns
WR
↑
delay time from WAIT
↑
t
DWTW
V
DD
= 5.0 V
0.5T
40
ns
V
DD
= 3.0 V
0.5T
80
ns
WAIT
↓
input time from WR
↓
t
DWWTL
V
DD
= 5.0 V
T – 40
40
ns
V
DD
= 3.0 V
T – 60
100
ns
WAIT hold time from WR
↓
t
HWWT
V
DD
= 5.0 V
nT + 5
85
ns
V
DD
= 3.0 V
nT + 10
170
ns
WAIT
↑
delay time from WR
↓
t
DWWTH
V
DD
= 5.0 V
(1 + n) T – 40
200
ns
V
DD
= 3.0 V
(1 + n) T – 60
420
ns
Remark
T: t
CYK
= 1/f
XX
(f
XX
: main system clock frequency)
a: 1 (during address wait), otherwise, 0
n: Number of wait states (n
≥
0)
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