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參數資料
型號: W541E261
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD
中文描述: 4-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 10/13頁
文件大小: 294K
代理商: W541E261
W541E/C261 DATA SHEET
- 10 -
Continued
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Port RA/RB Sink Current
I
ABL
V
OL
= 0.4V
3
6
-
mA
Port RA/RB Source
Current
I
ABH
V
OH
= 2.4V
1.5
3.0
-
mA
Port MFP Sink current
I
ML
V
OL
= 0.4V
3
6
-
mA
Port MFP Source current
I
ML
V
OL
= 2.4V
3
6
-
mA
Input Port Pull-up Resistor
R
CD
Port RC, RD
100
350
600
K
Ω
RES
Pull-up Resistor
R
RES
-
100
150
200
K
Ω
INT
Pull-up Resistor
R
INT
-
100
150
200
K
Ω
VPP Pull-down Resistor
R
VPP
V
DD
= 5V
0.5
1
1.5
M
Ω
MODE Pull-down Resistor
R
MODE
V
DD
= 5V
0.5
1
1.5
M
Ω
DATA Pull-down Resistor
R
DATA
V
DD
= 5V
50
100
150
K
Ω
6. AC CHARACTERISTICS
(V
DD
V
SS
= 3.0V, T
A
= 25
°
C, unless otherwise specified)
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX
.
UNIT
RC type
-
-
4000
Crystal type 1 (Option
low speed type)
-
32.768
-
Op. Frequency
F
OSC
Crystal type 2 (Option
high speed type)
400
-
4000
KHz
Frequency Deviation by
Voltage Drop for RC
Oscillator
Δ
f
f
f(3V)
f(2.4V)
f(3V)
-
-
25
%
Instruction Cycle Time
T
I
One machine cycle
-
4/F
OSC
-
S
T
RAW1
Dual clock
1
-
-
Reset Active Width
T
RAW2
Single colck
1
-
-
μ
S
Interrupt Active Width
T
IAW
F
OSC
= 32.768 KHz
1
-
-
μ
S
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