參數(shù)資料
型號(hào): μPD789012
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(yè)數(shù): 31/44頁(yè)
文件大?。?/td> 271K
代理商: ΜPD789012
μ
PD789011, 789012
31
(2) Serial interface channel 0 (T
A
= –40 to +85
°
, V
DD
= 1.8 to 5.5 V)
(i)
3-wire serial I/O mode (SCK0 : internal clock output)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
SCK0 cycle time
t
KCY1
V
DD
= 2.7 to 5.5 V
800
ns
3200
ns
SCK0 high/low level
t
KH1,
V
DD
= 2.7 to 5.5 V
t
KCY1
/2 – 50
ns
widths
t
KL1
t
KCY1
/2 – 150
ns
SI0 setup time
(on SCK0
)
t
SIK1
V
DD
= 2.7 to 5.5 V
150
ns
500
ns
SI0 hold time
(on SCK0
)
t
KSI1
V
DD
= 2.7 to 5.5 V
400
ns
600
ns
SCK0
SO0
Output delay time
t
KSO1
R = 1k
,
C = 100 pF
Note
V
DD
= 2.7 to 5.5 V
0
250
ns
0
1000
ns
Note
R and C are the load resistance and load capacitance of the SO0 output line.
(ii) 3-wire serial I/O mode (SCK0 : external clock output)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
SCK0 cycle time
t
KCY2
V
DD
= 2.7 to 5.5 V
800
ns
3200
ns
SCK0 high/low level
t
KH2,
V
DD
= 2.7 to 5.5 V
400
ns
widths
t
KL2
1600
ns
SI0 setup time
(on SCK0
)
t
SIK2
V
DD
= 2.7 to 5.5 V
100
ns
150
ns
SI0 hold time
(on SCK0
)
t
KSI2
V
DD
= 2.7 to 5.5 V
400
ns
600
ns
SCK0
SO0
Output delay time
t
KSO2
R = 1k
,
C = 100 pF
Note
V
DD
= 2.7 to 5.5 V
0
300
ns
0
1000
ns
Note
R and C are the load resistance and load capacitance of the SO0 output line.
(iii) UART mode (dedicated baud rate generator output)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Transfer rate
V
DD
= 2.7 to 5.5 V
78125
bps
19531
bps
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