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參數(shù)資料
| 型號： | SN54LVTH646JT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LVT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDIP24 |
| 封裝： | CERAMIC, DIP-24 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 229K |
| 代理商： | SN54LVTH646JT |
SN54LVTH646, SN74LVTH646
3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS705E – AUGUST 1997 – REVISED APRIL 1999
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54LVTH646
SN74LVTH646
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 2.7 V,
II = –18 mA
–1.2
V
VCC = 2.7 V to 3.6 V,
IOH = –100 A
VCC–0.2
VOH
VCC = 2.7 V,
IOH = –8 mA
2.4
V
VOH
VCC =3V
IOH = –24 mA
2
V
VCC = 3 V
IOH = –32 mA
2
VCC =2 7V
IOL = 100 A
0.2
VCC = 2.7 V
IOL = 24 mA
0.5
VOL
IOL = 16 mA
0.4
V
VOL
VCC =3V
IOL = 32 mA
0.5
V
VCC = 3 V
IOL = 48 mA
0.55
IOL = 64 mA
0.55
Control inputs
VCC = 3.6 V,
VI = VCC or GND
±1
Control inputs
VCC = 0 or 3.6 V,
VI = 5.5 V
10
II
VI = 5.5 V
20
A
A or B ports
VCC = 3.6 V
VI = VCC
1
VI = 0
–5
Ioff
VCC = 0,
VI or VO = 0 to 4.5 V
±100
A
VCC =3V
VI = 0.8 V
75
II(hold)
A or B ports
VCC = 3 V
VI = 2 V
–75
A
()
VCC = 3.6 V§,
VI = 0 to 3.6 V
±500
IOZPU
VCC = 0 to 1.5 V, VO = 0.5 V to 3 V,
OE = don’t care
±100
A
IOZPD
VCC = 1.5 V to 0, VO = 0.5 V to 3 V,
OE = don’t care
±100
A
VCC = 3.6 V,
Outputs high
0.19
ICC
VCC = 3.6 V,
IO = 0,
Outputs low
5
mA
VI = VCC or GND
Outputs disabled
0.19
ICC
VCC = 3 V to 3.6 V, One input at VCC – 0.6 V,
Other inputs at VCC or GND
0.2
mA
Ci
VI = 3 V or 0
4
pF
Cio
VO = 3 V or 0
9
pF
All typical values are at VCC = 3.3 V, TA = 25°C.
Unused terminals at VCC or GND
§ This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another.
This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
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