參數(shù)資料
型號(hào)： 935262002118
廠商： NXP SEMICONDUCTORS
元件分類： 總線收發(fā)器
英文描述： AHC SERIES, OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝： 4.40 MM, PLASTIC, MO-153AC, SOT-360-1, TSSOP-20
文件頁(yè)數(shù)： 15/16頁(yè)
文件大?。?/td> 80K
代理商： 935262002118
1999 Sep 28
8
Philips Semiconductors
Product specication
Octal buffer/line driver; 3-state
74AHC244; 74AHCT244
AC CHARACTERISTICS
Type 74AHC244
GND = 0 V; tr =tf ≤ 3.0 ns.
Notes
1. Typical values at VCC = 3.3 V.
2. Typical values at VCC = 5.0 V.
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb (°C)
UNIT
WAVEFORMS
CL
25
40 to +85
40 to +125
MIN.
TYP.
MAX.
MIN.
MAX.
MIN.
MAX.
VCC = 3.0 to 3.6 V; note 1
tPHL/tPLH
propagation delay
nAn to nYn
see Figs 4 and 6 15 pF
5.0
8.4
1.0
10.0
1.0
10.5
ns
tPZL/tPZH
propagation delay
nOE to nYn
see Figs 5 and 6
6.5
10.6
1.0
12.5
1.0
13.5
ns
tPLZ/tPHZ
propagation delay
nOE to nYn
5.5
9.7
1.0
11.0
1.0
12.5
ns
tPHL/tPLH
propagation delay
nAn to nYn
see Figs 4 and 6 50 pF
7.0
11.9
1.0
13.5
1.0
15.0
ns
tPZL/tPZH
propagation delay
nOE to nYn
see Figs 5 and 6
7.5
14.1
1.0
16.0
1.0
18.0
ns
tPLZ/tPHZ
propagation delay
nOE to nYn
10.0
14.0
1.0
16.0
1.0
17.5
ns
VCC = 4.5 to 5.5 V; note 2
tPHL/tPLH
propagation delay
nAn to nYn
see Figs 4 and 6 15 pF
3.4
5.5
1.0
6.5
1.0
7.0
ns
tPZL/tPZH
propagation delay
nOE to nYn
see Figs 5 and 6
4.0
7.3
1.0
8.5
1.0
9.5
ns
tPLZ/tPHZ
propagation delay
nOE to nYn
4.8
7.2
1.0
8.5
1.0
9.0
ns
tPHL/tPLH
propagation delay
nAn to nYn
see Figs 4 and 6 50 pF
5.0
7.5
1.0
8.5
1.0
9.5
ns
tPZL/tPZH
propagation delay
nOE to nYn
see Figs 5 and 6
5.5
9.3
1.0
10.5
1.0
12.0
ns
tPLZ/tPHZ
propagation delay
nOE to nYn
7.0
9.2
1.0
10.5
1.0
11.5
ns
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