參數(shù)資料
型號(hào): μPD78P054
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁(yè)數(shù): 49/86頁(yè)
文件大?。?/td> 502K
代理商: ΜPD78P054
49
μ
PD78P054, 78P058
(c) Serial interface channel 2
(i)
3-wire serial I/O mode (SCK2 ... internal clock output)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
SCK2 cycle time
t
KCY11
4.5 V
V
DD
6.0 V
800
ns
2.7 V
V
DD
< 4.5 V
1600
ns
3200
ns
SCK2 high-/low-level width
t
KH11
,
V
DD
= 4.5 to 6.0 V
t
KCY11
/2 – 50
ns
t
KL11
t
KCY11
/2 – 100
ns
SI2 setup time (to SCK2
)
t
SIK11
4.5 V
V
DD
6.0 V
100
ns
2.7 V
V
DD
< 4.5 V
150
ns
300
ns
SI2 hold time (from SCK2
)
t
KSI11
400
ns
SO2
output delay time
from SCK2
t
KSO11
C = 100 pF
Note
300
ns
Note
C is the SO2 output line load capacitance.
(ii) UART mode (Dedicated baud rate generator output)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Transfer rate
4.5 V
V
DD
6.0 V
78125
bps
2.7 V
V
DD
< 4.5 V
39063
bps
19531
bps
(iii) UART mode (External clock input)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
ASCK cycle time
t
KCY12
4.5 V
V
DD
6.0 V
800
ns
2.7 V
V
DD
< 4.5 V
1600
ns
3200
ns
ASCK high-/low-level width
t
KH12
,
4.5 V
V
DD
6.0 V
400
ns
t
KL12
2.7 V
V
DD
< 4.5 V
800
ns
1600
ns
Transfer rate
4.5 V
V
DD
6.0 V
39063
bps
2.7 V
V
DD
< 4.5 V
19531
bps
9766
bps
ASCK rise, fall time
t
R12
,
t
F12
V
DD
= 4.5 to 6.0 V, when not using
external device expansion function
1000
ns
160
ns
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