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参数资料
| 型号： | 74AHC244PWDH |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 通用总线功能 |
| 英文描述： | Octal buffer/line driver; 3-state |
| 中文描述： | AHC SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封装： | 4.40 MM, PLASTIC, SOT-360-1, TSSOP-20 |
| 文件页数： | 8/16页 |
| 文件大小： | 80K |
| 代理商： | 74AHC244PWDH |
1999 Sep 28
8
Philips Semiconductors
Product specification
Octal buffer/line driver; 3-state
74AHC244; 74AHCT244
AC CHARACTERISTICS
Type 74AHC244
GND = 0 V; t
r
= t
f
≤
3.0 ns.
Notes
1.
2.
Typical values at V
CC
= 3.3 V.
Typical values at V
CC
= 5.0 V.
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
= 3.0 to 3.6 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
5.0
8.4
1.0
10.0
1.0
10.5
ns
t
PZL
/t
PZH
see Figs 5 and 6
6.5
10.6
1.0
12.5
1.0
13.5
ns
t
PLZ
/t
PHZ
5.5
9.7
1.0
11.0
1.0
12.5
ns
t
PHL
/t
PLH
see Figs 4 and 6
50 pF
7.0
11.9
1.0
13.5
1.0
15.0
ns
t
PZL
/t
PZH
see Figs 5 and 6
7.5
14.1
1.0
16.0
1.0
18.0
ns
t
PLZ
/t
PHZ
10.0
14.0
1.0
16.0
1.0
17.5
ns
V
CC
= 4.5 to 5.5 V;
note 2
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
3.4
5.5
1.0
6.5
1.0
7.0
ns
t
PZL
/t
PZH
see Figs 5 and 6
4.0
7.3
1.0
8.5
1.0
9.5
ns
t
PLZ
/t
PHZ
4.8
7.2
1.0
8.5
1.0
9.0
ns
t
PHL
/t
PLH
see Figs 4 and 6
50 pF
5.0
7.5
1.0
8.5
1.0
9.5
ns
t
PZL
/t
PZH
see Figs 5 and 6
5.5
9.3
1.0
10.5
1.0
12.0
ns
t
PLZ
/t
PHZ
7.0
9.2
1.0
10.5
1.0
11.5
ns
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|---|---|
| 74AHC244 | Quad 2-Input Positive-NAND Gates 14-TSSOP -40 to 85 |
| 74AHCT245 | Quadruple 2-Input Positive-AND Gates 14-SSOP -40 to 85 |
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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 |
|---|---|
| 74AHC244PW-Q100 | 功能描述:缓冲器和线路驱动器 Octal Buff/Drvr 3ST 5.5 V CMOS 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 |
| 74AHC244PW-Q100,11 | 功能描述:缓冲器和线路驱动器 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 |
| 74AHC244PW-Q100,118 | 制造商:NXP Semiconductors 功能描述: |
| 74AHC244PW-T | 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 |
| 74AHC245 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Octal bus transceiver 3-state |
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