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參數(shù)資料
| 型號(hào)： | 935260751112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 封裝： | 4.40 MM, PLASTIC, MO-153AD, SOT-355-1, TSSOP-24 |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 90K |
| 代理商： | 935260751112 |
1999 Jun 15
7
Philips Semiconductors
Product specication
Octal dual supply translating transceiver; 3-state
74LVC4245A
AC CHARACTERISTICS
GND = 0 V; tr =tf ≤ 2.5 ns; CL = 50 pF; Tamb = 40 to 85 °C.
Notes
1. Typical values are measured at VCCA = 5.0 V and VCCB = 3.3 V and Tamb =25 °C.
2. Typical values are measured at VCCA = 5.0 V and Tamb =25 °C.
SYMBOL
PARAMETER
WAVEFORMS
LIMITS
UNIT
VCCA =5V ± 0.5 V
VCCB = 3.3 V ± 0.3 V
VCCB = 2.7 V
MIN.
TYP.(1)
MAX.
MIN. TYP.(2)
MAX.
tPHL/tPLH
propagation delay
An to Bn
see Figs 4 and 7
1.5
4.0
6.5
1.5
4.5
7.0
ns
propagation delay
Bn to An
see Figs 4 and 7
1.5
4.0
6.5
1.5
4.5
7.0
ns
tPZH/tPZL
3-state output enable
time OE to An
see Figs 6 and 7
1.5
6.2
10
1.5
7.0
11.0
ns
3-state output enable
time OE to Bn
see Figs 6 and 7
1.5
5.0
8.1
1.5
5.7
8.7
ns
tPHZ/tPLZ
3-state output disable
time OE to An
see Figs 6 and 7
1.5
5.3
7.5
1.5
5.7
8.0
ns
3-state output disable
time OE to Bn
see Figs 6 and 7
1.5
5.8
7.8
1.5
6.2
8.5
ns
AC WAVEFORMS
Fig.4
The input (An, Bn) to output (Bn, An)
propagation delays.
handbook, halfpage
MNA366
An, Bn
INPUT
Bn, An
OUTPUT
tPHL
tPLH
GND
VI
VM
VOH
VOL
VM = 1.5 V at 2.7 V ≤ VCCB ≤ 3.6 V;
VM = 0.5VCCA at VCCA ≥ 4.5 V;
VOL and VOH are typical output voltage drop that occur
with the output load.
Fig.5 Supply operation area.
handbook, halfpage
1.5
2.7
5.7
Complies with TTL levels
3.9
0.9
MNA454
3.9
2.1
4.5
5.1
3.3
1.5
2.1
2.7
3.3
3.6
1.2
1.8
2.4
3.0
VCCA (V)
VCCB
(V)
VCCA ≥ VCCB
Full operation
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