參數(shù)資料
型號: μPD789187
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 128/146頁
文件大?。?/td> 630K
代理商: ΜPD789187
Preliminary Product Information
128
μ
PD789186, 789187, 789196, 789197
(iv) UART mode (external clock input)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
ASCK cycle time
t
KCY3
V
DD
= 2.7 to 5.5 V
800
ns
3,200
ns
t
KH3
, t
KL3
V
DD
= 2.7 to 5.5 V
400
ns
1,600
ns
Transfer rate
V
DD
= 2.7 to 5.5 V
39,063
bps
9,766
bps
t
R
, t
F
1
μ
s
(b) SMB0
(i) DC characteristics
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
V
IH
SCL0, SDA0
2.7 V
V
DD
< 5.5 V
0.8V
DD
V
DD
V
(during hysteresis)
0.9V
DD
V
DD
V
V
IL
SCL0, SDA0
2.7 V
V
DD
< 5.5 V
0
0.2V
DD
V
(during hysteresis)
0
0.1
V
Low-level output
voltage
V
OL
SCL0, SDA0
4.5 V
V
DD
< 5.5 V
I
OL
= 10 mA
1.0
V
I
OL
= 400
μ
A
0.5
V
High-level input
leakage current
I
LIH
SCL0, SDA0
V
IN
= V
DD
3
μ
A
Low-level input
leakage current
I
LIL
SCL0, SDA0
V
IN
= 0 V
3
μ
A
(ii) DC characteristics (when the comparator is used)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Input range
V
SDA
,
V
SCL
1.8 V
V
DD
< 5.5 V
0
5.5
V
Transfer level
VI
SDA
,
VI
SCL
0.6
1.0
1.4
V
ASCK high/low
level width
ASCK rising time,
falling time
High-level input
voltage
Low-level input
voltage
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