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参数资料
| 型号： | 74AHC244 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | Quad 2-Input Positive-NAND Gates 14-TSSOP -40 to 85 |
| 中文描述： | 八路缓冲器/线路驱动器，3态 |
| 文件页数： | 9/16页 |
| 文件大小： | 80K |
| 代理商： | 74AHC244 |
1999 Sep 28
9
Philips Semiconductors
Product specification
Octal buffer/line driver; 3-state
74AHC244; 74AHCT244
Type 74AHCT244
GND = 0 V; t
r
= t
f
≤
3.0 ns.
Note
1.
Typical values at V
CC
= 5.0 V.
AC WAVEFORMS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
(
°
C)
UNIT
WAVEFORMS
C
L
25
40 to +85
40 to +125
MIN.
TYP.
MAX.
MIN.
MAX.
MIN.
MAX.
V
CC
= 4.5 to 5.5 V;
note 1
t
PHL
/t
PLH
propagation delay
nA
n
to nY
n
propagation delay
nOE to nY
n
propagation delay
nOE to nY
n
propagation delay
nA
n
to nY
n
propagation delay
nOE to nY
n
propagation delay
nOE to nY
n
see Figs 4 and 6
15 pF
3.5
7.4
1.0
8.5
1.0
9.5
ns
t
PZL
/t
PZH
see Figs 5 and 6
3.5
10.4
1.0
12.0
1.0
13.0
ns
t
PLZ
/t
PHZ
5.0
9.4
1.0
10.0
1.0
12.0
ns
t
PHL
/t
PLH
see Figs 4 and 6
50 pF
5.0
8.4
1.0
9.5
1.0
10.5
ns
t
PZL
/t
PZH
see Figs 5 and 6
5.5
11.4
1.0
13.0
1.0
14.5
ns
t
PLZ
/t
PHZ
7.0
11.4
1.0
13.0
1.0
14.5
ns
Fig.4 The input (nA
n
) to output (nY
n
) propagation delays.
handbook, halfpage
MNA171
nAn INPUT
nYn OUTPUT
tPLH
tPHL
GND
VI
VM
VM
VM
VM
VOH
VOL
FAMILY
V
I
INPUT
REQUIREMENTS
V
M
INPUT
V
M
OUTPUT
AHC
AHCT
GND to V
CC
GND to 3.0 V
50% V
CC
1.5 V
50% V
CC
50% V
CC
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| 74AHC245PWDH | Octal bus transceiver; 3-state |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 74AHC244BQ | 制造商:NXP Semiconductors 功能描述:IC BUFFER/DRIVER TRI-ST VQFN |
| 74AHC244BQ,115 | 功能描述:缓冲器和线路驱动器 OCTAL BUFFER 3-STATE RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| 74AHC244BQ-G | 功能描述:缓冲器和线路驱动器 OCTAL BUFFER 3-STATE RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| 74AHC244BQ-Q100,11 | 制造商:NXP Semiconductors 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin DHVQFN EP T/R 制造商:NXP Semiconductors 功能描述:74AHC244BQ-Q100/DHVQFN20/REEL7 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC BUFFER LINE DVR OCT 20DHVQFN |
| 74AHC244BQ-Q100,115 | 制造商:NXP Semiconductors 功能描述: |
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