參數(shù)資料
型號: UPD78054
廠商: NEC Corp.
元件分類: DC/DC變換器
英文描述: 8-bit single-chip microcomputer
中文描述: 8位單片機(jī)
文件頁數(shù): 38/62頁
文件大?。?/td> 576K
代理商: UPD78054
38
μ
PD78001B(A), 78002B(A)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
SCK cycle time
t
KCY2
V
DD
= 4.5 to 6.0 V
800
ns
3200
ns
SCK high/low-level width
t
KH2
V
DD
= 4.5 to 6.0 V
400
ns
t
KL2
1600
ns
SI setup time (to SCK
)
t
SIK2
100
ns
SI hold time (from SCK
)
t
KSI2
400
ns
SO output delay time from
t
KSO2
C = 100 pF
*
V
DD
= 4.5 to 6.0 V
300
ns
SCK
SCK rise, fall time
1000
When external device expansion
function is used
160
ns
When external device expansion
function is not used
1000
ns
(3) Serial Interface
(T
A
= –40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
(a) 3-wire serial I/O mode (SCK... Internal clock output)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
SCK cycle time
t
KCY1
V
DD
= 4.5 to 6.0 V
800
ns
3200
ns
SCK high/low-level width
t
KH1
V
DD
= 4.5 to 6.0 V
t
KCY1
/2-50
ns
t
KL1
t
KCY1
/2-150
ns
SI setup time (to SCK
)
t
SIK1
100
ns
SI hold time (from SCK
)
t
KSI1
400
ns
SO output delay time from
t
KSO1
C = 100 pF
*
V
DD
= 4.5 to 6.0 V
300
ns
SCK
1000
ns
*
C is the load capacitance of SO output line.
(b) 3-wire serial I/O mode (SCK... External clock input)
t
R2
t
F2
*
C is the load capacitance of SO output line.
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