參數(shù)資料
型號: W742E
廠商: WINBOND ELECTRONICS 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位單片機的小型通用紅外遙控器
文件頁數(shù): 52/66頁
文件大?。?/td> 303K
代理商: W742E
Preliminary W742C(E)811
- 52 -
7. DC Characteristics, continued
PARAMETER
SYM.
I
OH1
CONDITIONS
V
OH
= 2.4V
V
LCD
= 3.0V
V
OL
= 0.9V
V
OH
= 2.4V
R
L
= 5 K
, V
DD
= 2.5 to
3.8V
R
L
= 5K
, V
DD
= 2.5 to
3.8V
Low group, R
L
= 5K
Col/Row
Port RC
-
MIN.
90
TYP.
-
MAX.
-
UNIT
μ
A
SEG0-SEG39 Drive Current
(Used as LCD output)
Port RE Sink Current
Port RE Source Current
DTMF Output DC level
I
EL
I
EH
V
TDC
9
-
-
-
mA
mA
V
0.4
1.1
1.2
-
2.8
DTMF Distortion
T
HD
-
-30
-23
dB
DTMF Output Voltage
Pre-emphasis
Pull-up Resistor
RES Pull-up Resistor
V
TO
R
C
R
RES
130
1
100
20
150
2
350
100
170
3
1000
500
mVrms
dB
K
K
8. AC CHARACTERISTICS
PARAMETER
Op. Frequency
Frequency Deviation by voltage
Drop for RC Oscillator
SYM.
F
OSC
f
f
T
I
T
RAW
T
IAW
CONDITIONS
RC type
Crystal type
f(3V) - f(2.4V)
f(3V)
One machine cycle
F
OSC
= 32.768 KHz
F
OSC
= 32.768 KHz
MIN.
-
-
-
TYP.
2000
3.58
-
MAX.
-
-
10
UNIT
KHz
MHz
%
Instruction Cycle Time
Reset Active Width
Interrupt Active Width
-
1
1
4/F
OSC
-
-
-
-
-
S
μ
S
μ
S
9. INSTRUCTION SET TABLE
Symbol Description
ACC:
ACC.n:
WR:
WRP:
PAGE:
DBKRL:
DBKRH:
ROMPR:
MR0:
Accumulator
Accumulator bit n
Working Register
WR Page register
Page Register
Data Bank Register (Low nibble)
Data Bank Register (High nibble)
ROM Page Register
Mode Register 0
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