參數(shù)資料
型號(hào): UPD7554AG
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 41/64頁(yè)
文件大?。?/td> 991K
代理商: UPD7554AG
41
μ
PD7554A, 7554A(A)
AC CHARACTERISTICS (T
a
= –10 to +70
°
C, V
DD
= 2.5 to 3.3 V)
Note1
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Internal clock cycle time
t
CY
Note2
8.0
200
μ
s
P00 event input frequency
f
PO
0
250
kHz
P00 input rise/fall time
t
POR
, t
POF
0.2
μ
s
P00 input high/low level
width
t
POH
, t
POL
2.0
μ
s
SCK cycle time
t
KCY
Input
8.0
μ
s
Output
10.0
μ
s
SCK high/low level width
t
KH
, t
KL
Input
4.0
μ
s
Output
5.0
μ
s
SI setup time (to SCK
)
t
SIK
300
ns
SI hold time (from SCK
)
t
KSI
300
ns
SCK
↓→
SO output delay time
t
KSO
C
L
= 100 pF
2000
ns
INT0 high/low level width
t
IOH
, t
IOL
30
μ
s
RESET high/low level
width
t
RSH
, t
RSL
30
μ
s
Note1.
μ
PD7554A only
t
CY
= 2/f
CC
or 2/f
C
2.
AC Timing Test Point
(Except CL1 Input)
0.8 V
DD
0.2 V
DD
0.8 V
DD
0.2 V
DD
Test
Points
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