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参数资料
| 型号： | SN74ALS845-1NT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDIP24 |
| 封装： | 0.300 INCH, PLASTIC, DIP-24 |
| 文件页数： | 3/9页 |
| 文件大小： | 217K |
| 代理商： | SN74ALS845-1NT |
SN74ALS845
8BIT BUSINTERFACE DTYPE LATCH
WITH 3STATE OUTPUTS
SDAS233A DECEMBER 1983 REVISED JANUARY 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IOH
High-level output current
2.6
mA
IOL
Low-level output current
24
mA
IOL
Low-level output current
48
mA
tw
Pulse duration
CLR or PRE low
35
ns
tw
Pulse duration
LE high
20
ns
tsu
Setup time, data before LE
↓
10
ns
th
Hold time, data after LE
↓
5
ns
TA
Operating free-air temperature
0
70
°C
Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP§
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.2
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = 0.4 mA
VCC 2
V
VOH
VCC = 4.5 V,
IOH = 2.6 mA
2.4
3.2
V
IOL = 12 mA
0.25
0.4
VOL
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
VOL
VCC = 4.5 V
IOL = 48 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
20
A
IOZL
VCC = 5.5 V,
VO = 0.4 V
20
A
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
VCC = 5.5 V,
VI = 0.4 V
0.1
mA
IO
VCC = 5.5 V,
VO = 2.25 V
30
112
mA
Outputs high
21
36
ICC
VCC = 5.5 V
Outputs low
41
67
mA
ICC
VCC = 5.5 V
Outputs disabled
25
42
mA
Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V
§ All typical values are at VCC = 5 V, TA = 25°C.
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
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相关代理商/技术参数 |
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| SN74ALS845DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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| SN74ALS845NT | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:n/a 功能描述:SN74ALS845NT 制造商:TEXAS INSTRUMENTS 功能描述: 制造商:Texas Instruments 功能描述: |
| SN74ALS845NT3 | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| SN74ALS857DW | 功能描述:编码器、解码器、复用器和解复用器 Hex 2 To 1 Univ Mltplxr W/3-St Otpt RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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