參數(shù)資料
型號(hào)： UPD784021GC-3B9
廠商： NEC Corp.
英文描述： 16/8-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 16/8-BIT單片機(jī)
文件頁數(shù)： 68/90頁
文件大小： 614K
代理商： UPD784021GC-3B9
68
m
PD784020, 784021
SERIAL OPERATION (CSI)
Remarks 1.
The values listed in the above table are obtained when f
XX
= 25 MHz and C
L
= 100 pF.
2.
t
CYX
= 1/f
XX
3.
T: Serial clock frequency specified using software. The minimum value is 16/f
XX
.
Parameter
Serial clock cycle time
(SCK0)
Serial clock low-level width
(SCK0)
Serial clock high-level width
(SCK0)
SI0, SB0 setup time
(referred to SCK0
)
SI0, SB0 hold time
(referred to SCK0
)
SO0, SB0 output delay time
(referred to SCK0
)
SO0, SB0 output hold time
(referred to SCK0
)
SB0 high hold time
(referred to SCK0
)
SB0 low setup time
(referred to SCK0
)
SB0 low-level width
SB0 high-level width
Symbol
t
CYSK0
t
WSKL0
t
WSKH0
t
SSSK0
t
HSSK0
t
DSBSK1
t
DSBSK2
t
HSBSK1
t
HSBSK2
t
SSBSK
t
WSBL
t
WSBH
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
CYX
t
CYX
t
CYX
t
CYX
Min.
500
1000
T
210
460
0.5T – 40
210
460
0.5T – 40
80
80
0
0
0.5T
CYSK0
– 40
4
4
4
4
Max.
150
400
Conditions
Input
V
DD
= +5.0 V
±
10 %
Output
Input
V
DD
= +5.0 V
±
10 %
Output
Input
V
DD
= +5.0 V
±
10 %
Output
CMOS push-pull output
(three-wire serial I/O mode)
Open-drain output
(SBI mode), R
L
= 1 k
W
During data transfer
SBI mode
相關(guān)PDF資料
PDF描述
UPD784020GC-3B9 16/8-BIT SINGLE-CHIP MICROCOMPUTER
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