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參數(shù)資料
| 型號(hào)： | 935261957118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | AHCT/VHCT SERIES, OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 7.50 MM, PLASTIC, MS-013AC, SOT-163-1, SO-20 |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 80K |
| 代理商： | 935261957118 |
1999 Sep 28
9
Philips Semiconductors
Product specication
Octal buffer/line driver; 3-state
74AHC244; 74AHCT244
Type 74AHCT244
GND = 0 V; tr =tf ≤ 3.0 ns.
Note
1. Typical values at VCC = 5.0 V.
AC WAVEFORMS
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb (°C)
UNIT
WAVEFORMS
CL
25
40 to +85
40 to +125
MIN.
TYP.
MAX.
MIN.
MAX.
MIN.
MAX.
VCC = 4.5 to 5.5 V; note 1
tPHL/tPLH
propagation delay
nAn to nYn
see Figs 4 and 6
15 pF
3.5
7.4
1.0
8.5
1.0
9.5
ns
tPZL/tPZH
propagation delay
nOE to nYn
see Figs 5 and 6
3.5
10.4
1.0
12.0
1.0
13.0
ns
tPLZ/tPHZ
propagation delay
nOE to nYn
5.0
9.4
1.0
10.0
1.0
12.0
ns
tPHL/tPLH
propagation delay
nAn to nYn
see Figs 4 and 6
50 pF
5.0
8.4
1.0
9.5
1.0
10.5
ns
tPZL/tPZH
propagation delay
nOE to nYn
see Figs 5 and 6
5.5
11.4
1.0
13.0
1.0
14.5
ns
tPLZ/tPHZ
propagation delay
nOE to nYn
7.0
11.4
1.0
13.0
1.0
14.5
ns
Fig.4 The input (nAn) to output (nYn) propagation delays.
handbook, halfpage
MNA171
nAn INPUT
nYn OUTPUT
tPLH
tPHL
GND
VI
VM
VOH
VOL
FAMILY
VI INPUT
REQUIREMENTS
VM
INPUT
VM
OUTPUT
AHC
GND to VCC
50% VCC
AHCT
GND to 3.0 V
1.5 V
50% VCC
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