參數(shù)資料
型號(hào)： μPD780021
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)： 33/64頁(yè)
文件大?。?/td> 487K
代理商： ΜPD780021
33
μ
PD780021, 780022, 780023, 780024
Preliminary Data Sheet
Parameter
Symbol
Test Conditions
Ratings
Unit
Supply voltage
V
DD
–0.3 to +6.5
V
AV
DD
–0.3 to V
DD
+ 0.3
V
AV
REF
–0.3 to V
DD
+ 0.3
V
AV
SS
V
I1
–0.3 to +0.3
–0.3 to V
DD
+ 0.3
V
V
Input voltage
P00 to P03, P10 to P17, P20 to P25, P34 to P36, P40 to P47,
P50 to P57, P64 to P67, P70 to P75, X1, X2, XT1, XT2,
RESET
V
I2
P30 to P33
N-ch open-drain
–0.3 to V
DD
+ 0.3
V
Output voltage
V
O
–0.3 to V
DD
+ 0.3
V
Analog input voltage
V
AN
P10 to P17 Analog input pin
AV
SS
– 0.3 to AV
REF0
+ 0.3
V
and –0.3 to V
DD
+ 0.3
High-level output
current
I
OH
Per pin
–10
mA
Total for P00 to P03, P40 to P47, P50 to P57, P64 to P67, P70 to P75
–15
mA
Total for P20 to P25, P30 to P36
–15
mA
Low-level output
current
I
OL
Note
Per pin for P00 to P03, P20 to P25, P34 to
Peak value
20
mA
P36, P40 to P47, P64 to P67, P70 to P75
Effective value
10
mA
Per pin for P30 to P33, P50 to P57
Peak value
30
mA
Effective value
15
mA
Total for P00 to P03, P40 to P47,
Peak value
50
mA
P64 to P67, P70 to P75
Effective value
20
mA
Total for P20 to P25
Peak value
20
mA
Effective value
10
mA
Total for P30 to P36
Peak value
100
mA
Effective value
70
mA
Total for P50 to P57
Peak value
100
mA
Effective value
70
mA
Operating ambient
tempature
T
A
Peak value
–40 to +85
°
C
Storage
temperature
T
stg
Effective value
–65 to +150
°
C
11. ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings (T
A
= 25
°
C)
Note
The effective value should be calculated as follows: [Effective value] = [Peak value]
×
√
duty
Caution
Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any
parameter. That is, the absolute maximum ratings are rated values at which the product is on the
verge of suffering physical damage, and therefore the product must be used under conditions that
ensure that the absolute maximum ratings are not exceeded.
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