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PDF ( 数据手册 , 数据表 ) 74ALVC244BQ

零件编号 74ALVC244BQ
描述 Octal buffer/line driver; 3-state
制造商 NXP Semiconductors
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74ALVC244BQ 数据手册, 描述, 功能
INTEGRATED CIRCUITS
DATA SHEET
74ALVC244
Octal buffer/line driver; 3-state
Product specification
Supersedes data of 2003 Aug 11
2003 Sep 08







74ALVC244BQ pdf, 数据表
Philips Semiconductors
Octal buffer/line driver; 3-state
Product specification
74ALVC244
AC CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITIONS
WAVEFORMS
VCC (V)
Tamb = 40 to +85 °C
tPHL/tPLH propagation delay nAn to nYn see Figs 6 and 8 1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
tPZH/tPZL 3-state output enable time
nOE to nYn
see Figs 7 and 8 1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
tPHZ/tPLZ 3-state output disable time
nOE to nYn
see Figs 7 and 8 1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
Note
1. All typical values are measured at Tamb = 25 °C.
MIN.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
TYP.(1)
2.7
2.0
2.3
2.2
3.4
2.6
3.2
2.5
3.8
2.2
3.0
2.9
MAX. UNIT
4.4 ns
3.1 ns
3.1 ns
2.8 ns
6.9 ns
5.4 ns
5.3 ns
4.5 ns
5.9 ns
4.1 ns
4.4 ns
4.2 ns
AC WAVEFORMS
handbook, halfpage VI
nAn input
GND
tPLH
VOH
nYn output
VOL
VM
VM
VM
tPHL
VM
MNA171
VCC
1.65 to 1.95 V
2.3 to 2.7 V
2.7 V
3.0 to 3.6 V
VM
0.5 × VCC
0.5 × VCC
1.5 V
1.5 V
INPUT
VI
VCC
VCC
2.7 V
2.7 V
tr = tf
2.0 ns
2.0 ns
2.5 ns
2.5 ns
Fig.6 Input nAn to output nYn propagation delay times.
2003 Sep 08
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