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參數(shù)資料
| 型號(hào)： | SN74LS244N |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 通用總線功能 |
| 英文描述： | LOW POWER SCHOTTKY |
| 中文描述： | LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 122K |
| 代理商： | SN74LS244N |
SN74LS240 SN74LS244
http://onsemi.com
3
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
V
IH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
V
IL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
V
T+
–V
T–
Hysteresis
0.2
0.4
V
V
CC
= MIN
V
IK
Input Clamp Diode Voltage
–0.65
–1.5
V
V
CC
= MIN, I
IN
= –18 mA
V
OH
Output HIGH Voltage
2.4
3.4
V
V
CC
= MIN, I
OH
= –3.0 mA
2.0
V
V
CC
= MIN, I
OH
= MAX
V
OL
Output LOW Voltage
0.25
0.4
V
I
OL
= 12 mA
V
CC
= V
CC
MIN,
V
IN
= V
IL
or V
IH
per Truth Table
0.35
0.5
V
I
OL
= 24 mA
I
OZH
Output Off Current HIGH
20
μ
A
V
CC
= MAX, V
OUT
= 2.7 V
I
OZL
Output Off Current LOW
–20
μ
A
V
CC
= MAX, V
OUT
= 0.4 V
I
IH
Input HIGH Current
20
μ
A
V
CC
= MAX, V
IN
= 2.7 V
0.1
mA
V
CC
= MAX, V
IN
= 7.0 V
I
IL
Input LOW Current
–0.2
mA
V
CC
= MAX, V
IN
= 0.4 V
I
OS
Output Short Circuit Current (Note 1)
–40
–225
mA
V
CC
= MAX
Power Supply Current
Total, Output HIGH
27
I
CC
Total, Output LOW
LS240
44
V
CC
= MAX
LS244
46
mA
Total at HIGH Z
LS240
50
LS244
54
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(T
A
= 25
°
C, V
CC
= 5.0 V)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
t
PLH
t
PHL
Propagation Delay, Data to Output
LS240
9.0
12
14
18
ns
t
PLH
t
PHL
Propagation Delay, Data to Output
LS244
12
12
18
18
ns
C
L
= 45 pF,
R
L
= 667
t
PZH
Output Enable Time to HIGH Level
15
23
ns
t
PZL
Output Enable Time to LOW Level
20
30
ns
t
PLZ
Output Disable Time from LOW Level
15
25
ns
C
= 5.0 pF,
L
R
L
= 667
t
PHZ
Output Disable Time from HIGH Level
10
18
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS244 | Octal Buffer/Line Driver with 3-State Outputs |
| SN74LS244DW | LOW POWER SCHOTTKY |
| SN74LS240DW | Low Cost, High Linearity, Low LO Drive, Up and Down converter |
| SN74LS240N | OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS |
| SN74LS244DW | OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS244N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS244 DIP20 5.25V |
| SN74LS244N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS244 DIP20 5.25V |
| SN74LS244N3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS244NA16 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS244NE4 | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buff/Line Drvr W/3-State Otpt RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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