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參數資料
型號: W921C880
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-Bit Microcontroller(4位微控制器)
中文描述: 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 56/57頁
文件大小: 372K
代理商: W921C880
W921E880A/W921C880
- 56 -
W921C880 Mask ROM Type, continued
PARAMETER
Pull-high Resistor
(P2, P4, P6, PA, PB, PC, PD)
Output High Voltage
SYM.
R
PH
CONDITIONS
V
DD
= 3V
MIN.
TYP.
400
MAX.
UNIT
K
V
OH
I
OH
= -0.5 mA
V
DD
1.0
V
Output Low Voltage
V
OL1
V
OL2
I
OL
= 15 mA, port P2
I
OL
= 0.4 mA, Other ports
2.0
0.4
V
Input Leakage Current
V
IL
V
IN
= 0V,
RESET
pin
V
DD
= 2.8 to 5.5V
V
DD
= 2.8 to 5.5V
ROW Group, RL = 5 K
Col/Row
V
DD
= 3.0 to 5.5V
1
μ
A
DTMF Output DC Level
DTMF Distortion
DTMF Output Voltage
Pre-emphasis
V
TDC
THD
V
TO
1.0
-
130
1
3.0
-23
170
3
V
dB
-30
150
2
mVrms
dB
D/A DC Reference
Voltage
D/A Resolution Voltage
V
REF
0
2/3
V
DD
V
RSL
1/256
V
DAC
13. PACKAGE DIMENSIONS
80-pin QFP
41
40
25
24
65
1
80
2
1
A
H
D
D
e
b
E
H
E
y
A
A
Seating Plane
L
L
1
See Detail F
Detail F
c
64
θ
1. flash.
2.protrusion/intrusion.
3. Controlling dimension: Millimeter
4.on final visual inspection spec.
0.10
0
12
0
0.004
2.40
1.40
19.10
1.20
18.80
1.00
18.49
0.094
0.055
0.988
0.752
0.047
0.976
0.740
0.039
0.964
0.728
0.80
20.13
14.13
0.25
0.45
2.97
3.30
20.00
14.00
2.85
19.87
13.87
0.10
0.30
2.73
0.10
0.792
0.556
0.010
0.018
0.117
0.130
0.787
0.551
0.112
0.031
0.782
0.546
0.004
0.012
0.107
0.004
Notes:
Symbol
Min. Nom. Max.
Max.
Nom.
Min.
Dimension in inches
Dimension in mm
A
A
A
b
c
D
E
e
H
D
H
E
L
L
1
y
θ
1
2
0.014
0.006
0.15
0.35
24.49
24.80
25.10
12
0.025
0.037
0.087
0.103
0.65
0.95
2.21
2.62
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