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): 11/17頁
文件大?。?/td> 104K
代理商: 74LVC2245APWDH
2003 Nov 17
11
Philips Semiconductors
Product specification
Octal transceiver with direction pin, 30
series
termination resistors; 5 V tolerant input/output; 3-state
74LVC2245A
handbook, full pagewidth
VEXT
VCC
VI
VO
MNA616
D.U.T.
CL
RT
RL
RL
PULSE
GENERATOR
Fig.7 Load circuitry for switching times.
Definitions for test circuit:
R
L
= Load resistor.
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to the output impedance Z
o
of the pulse generator.
Note
1.
The circuit performs better when R
L
= 1000
V
CC
V
I
C
L
R
L
V
EXT
t
PLH
/t
PHL
open
open
open
t
PZH
/t
PHZ
GND
GND
GND
t
PZL
/t
PLZ
2
×
V
CC
2
×
V
CC
2
×
V
CC
1.2 V
2.7 V
3.0 to 3.6 V
V
CC
2.7 V
2.7 V
50 pF
50 pF
50 pF
500
(1)
500
500
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74LVC2245A Octal transceiver with direction pin;with 30Ω series termination resistors; with 5-volt tolerant inputs/outputs (3-State)(帶30Ω系列終端電阻器,5V輸入/輸出容限的八收發(fā)器(三態(tài)))
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