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參數(shù)資料
| 型號： | 74VHC221ASJX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 0K |
| 描述： | MULTIVIBRATOR DUAL MONO 16SOP |
| 標準包裝： | 2,000 |
| 系列： | 74VHC |
| 邏輯類型： | 單穩(wěn)態(tài) |
| 獨立電路： | 2 |
| 施密特觸發(fā)器輸入： | 無 |
| 傳輸延遲： | 8.1ns |
| 輸出電流高，低： | 8mA，8mA |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 16-SOP |
| 包裝： | 帶卷 (TR) |
74VHC221A
Dual
Non-Retrig
g
erab
le
Monostab
le
Multivibrator
1994 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHC221A Rev. 1.2
7
AC Electrical Characteristics(4)
Notes:
4. Refer to 74VHC221A Timing Chart.
5. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current
consumption without load. Average operating current can be obtained by the equation:
ICC (opr.) = CPD VCC fIN + ICC
1 Duty / 100 + I
CC / 2 (per Circuit)
ICC
1: Active Supply Current
Duty: %
AC Operating Requirement
Symbol
Parameter
VCC (V)
Conditions
TA = 25°C
TA = –40°C
to +85°C
Units
Min.
Typ.
Max.
Min.
Max.
tPLH, tPHL Propagation Delay Time
(A, B–Q, Q)
3.3 ± 0.3
CL = 15pF
13.4
20.6
1.0
24.0
ns
CL = 50pF
15.9
24.1
1.0
27.5
5.0 ± 0.5
CL = 15pF
8.1
12.0
1.0
14.0
ns
CL = 50pF
9.6
14.0
1.0
16.0
tPLH, tPHL Propagation Delay Time
(CLR Trigger—Q, Q)
3.3 ± 0.3
CL = 15pF
14.5
22.4
1.0
26.0
ns
CL = 50pF
17.0
25.9
1.0
29.5
5.0 ± 0.5
CL = 15pF
8.7
12.9
1.0
15.0
ns
CL = 50pF
10.2
14.9
1.0
17.0
tPLH, tPHL Propagation Delay Time
(CLR—Q, Q)
3.3 ± 0.3
CL = 15pF
10.3
15.8
1.0
18.5
ns
CL = 50pF
12.8
19.3
1.0
22.0
5.0 ± 0.5
CL = 15pF
6.3
9.4
1.0
11.0
ns
CL = 50pF
7.8
11.4
1.0
13.0
tWOUT
Output Pulse Width
2.0
CX = 28pF, CL = 50pF,
RX = 6k
415
3.3 ± 0.3
345
ns
5.0 ± 0.5
312
3.3 ± 0.3
CL = 50pF, Cx = 28pF,
Rx
= 2k
160
240
300
ns
5.0 ± 0.5
133
200
240
3.3 ± 0.3
CL = 50pF,
Cx
= 0.01F,
Rx
= 10k
90
100
110
90
110
s
5.0 ± 0.5
90
100
110
90
110
3.3 ± 0.3
CL = 50pF, Cx = 0.1F,
Rx
= 10k
0.9
1.0
1.1
0.9
1.1
ms
5.0 ± 0.5
0.9
1.0
1.1
0.9
1.1
t
wOUT
Output Pulse Width Error
Between Circuits
(In same Package)
±1
%
CIN
Input Capacitance
VCC = Open
4
10
pF
CPD
Power Dissipation
Capacitance
(5)
73
pF
Symbol
Parameter
VCC (V)
TA = 25°C
TA = –40°C to +85°C
Units
Min.
Typ.
Max.
Min.
Max.
tW(L)
Minimum Trigger
3.3
5.0
ns
tW(H)
Pulse Width
5.0
tW(L)
Minimum Clear Pulse Width
3.3
5.0
ns
5.0
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