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參數(shù)資料
| 型號： | 74LVC2245APWDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal transceiver with direction pin; 30 ohm series termination resistors; 5 V input/output tolerant; 3-state |
| 中文描述： | LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 9/17頁 |
| 文件大?。?/td> | 104K |
| 代理商： | 74LVC2245APWDH |
2003 Nov 17
9
Philips Semiconductors
Product specification
Octal transceiver with direction pin, 30
series
termination resistors; 5 V tolerant input/output; 3-state
74LVC2245A
AC CHARACTERISTICS
GND = 0 V; t
r
= t
f
≤
2.5 ns.
Notes
1.
2.
Typical values are measured at V
CC
= 3.3 V.
Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed
by design.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
WAVEFORMS
V
CC
(V)
T
amb
=
40 to +85
°
C
t
PHL
/t
PLH
propagation delay An to Bn; Bn to An
see Figs 5 and 7 1.2
1.5
26
4.0
3.6
(1)
28
5.9
4.3
(1)
12.0
3.8
3.4
(1)
7.3
6.3
9.5
8.2
6.9
5.9
1.0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2.7
3.0 to 3.6 1.5
t
PZH
/t
PZL
3-state output enable time
OE to An; OE to Bn
see Figs 6 and 7 1.2
1.5
2.7
3.0 to 3.6 1.5
t
PHZ
/t
PLZ
3-state output disable time
OE to An; OE to Bn
see Figs 6 and 7 1.2
1.5
2.7
3.0 to 3.6 1.7
t
sk(0)
T
amb
=
40 to +125
°
C
skew
note 2
t
PHL
/t
PLH
propagation delay nAn to nYn
see Figs 5 and 7 1.2
1.5
13
4.5
3.6
(1)
20
5.9
4.3
(1)
10
3.8
3.4
(1)
9.5
8.0
12.0
10.5
9.0
7.5
1.5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2.7
3.0 to 3.6 1.5
t
PZH
/t
PZL
3-state output enable time nOE to nYn
see Figs 6 and 7 1.2
1.5
2.7
3.0 to 3.6 1.5
t
PHZ
/t
PLZ
3-state output disable time nOE to nYn see Figs 6 and 7 1.2
1.5
2.7
3.0 to 3.6 1.7
t
sk(0)
skew
note 2
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