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參數(shù)資料
| 型號： | SN54LS221 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 1-of-8 Decoder/Demultiplexer; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 雙單穩(wěn)多諧振蕩器與施密特觸發(fā)輸入 |
| 文件頁數(shù)： | 7/23頁 |
| 文件大?。?/td> | 621K |
| 代理商： | SN54LS221 |
SDLS213B DECEMBER 1983 REVISED NOVEMBER 2004
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics V
CC
= 5 V, R
L
= 400
,
T
A
= 25 C (see Figures 1 and 2)
PARAMETER
FROM
(INPUT)
TO
TEST CONDITIONS
SN54221
TYP
SN74221
TYP
UNIT
(OUTPUT)
MIN
MAX
MIN
MAX
tPLH
A
Q
45
70
45
70
B
Cext = 80 pF,
Rext = 2 k
35
55
35
55
ns
tPHL
A
Q
50
80
50
80
B
40
65
40
65
tPHL
tPLH
CLR
Q
Cext = 80 pF,
Rext = 2 k
27
27
ns
Q
40
40
Cext = 80 pF,
Cext = 0,
Cext = 100 pF,
Cext = 1
μ
F,
Rext = 2 k
Rext = 2 k
Rext = 10 k
Rext = 10 k
70
110
150
70
110
150
tw
A or B
Q or Q
17
30
50
17
30
50
ns
650
700
750
650
700
750
6.5*
7
7.5*
6.5
7
7.5
ms
On products compliant to MIL-PRF-38535, this parameter is not production tested.
recommended operating conditions (see Note 4)
SN54LS221
MIN
NOM
SN74LS221
MIN
NOM
UNIT
MAX
MAX
VCC
IOH
IOL
Supply voltage
4.5
5
5.5
4.75
5
5.25
V
μ
A
mA
High-level output current
400
400
Low-level output current
4
8
v/
t
Rise or fall of input pulse rate
B input
1*
1*
1
V/s
V/
μ
s
°
C
A input
1
TA
Operating free-air temperature
On products compliant to MIL-PRF-38535, this parameter is not production tested.
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
55
125
0
70
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54LS221J | DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS |
| SN54LS257 | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS |
| SN74LS257 | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS |
| SN54LS257BFK | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS |
| SN74S257D | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN54LS221J | 制造商:Texas Instruments 功能描述:Monostable Multivibrator Dual 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:MONOSTABLE MULTIVIBRATOR DUAL 16CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:DUAL MONOSTABLE MULTIVIBRATOR |
| SN54LS224AJ | 制造商:Texas Instruments 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 16 x 4 16-Pin CDIP 制造商:Rochester Electronics LLC 功能描述: |
| SN54LS240J | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH INV 3-ST BIPOLAR 20CDIP - Rail/Tube |
| SN54LS240W | 制造商:Texas Instruments 功能描述: |
| SN54LS241J | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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