參數(shù)資料
型號(hào): UPD17228CT
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù): 70/84頁(yè)
文件大?。?/td> 393K
代理商: UPD17228CT
μ
PD17225, 17226, 17227, 17228
70
Data Sheet U12643EJ2V0DS00
AC Characteristics (T
A
= –40 to +85
°
C, V
DD
= 2.0 to 3.6 V)
Item
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
CPU Clock Cycle Time
Note
(Instruction Execution Time)
t
CY1
3.8
33
μ
s
t
CY2
V
DD
= 2.2 to 3.6 V
1.9
33
μ
s
INT High/Low Level Width
t
INTH,
t
INTL
20
μ
s
RESET Low Level Width
t
RSL
10
μ
s
Note
The CPU clock cycle time (instruction execution time)
is determined by the oscillation frequency of the reso-
nator connected and SYSCK (RF: address 02H) of the
register file.
The figure on the right shows the CPU clock cycle time
t
CY
vs. supply voltage V
DD
characteristics (refer to
4.
CLOCK GENERATOR CIRCUIT
).
t
CY
vs V
DD
Supply voltage V
DD
(V)
2
1
3
4
5
6
7
8
9
10
33
40
2
0
1
3
4
C
Y
3.8
1.9
2.2
3.6
Operation
guaranteed
area
μ
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