參數(shù)資料
型號(hào): SN74LVC257ADT
廠商: TEXAS INSTRUMENTS INC
元件分類: 編、解碼器及復(fù)用、解復(fù)用
英文描述: LVC/LCX/Z SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
封裝: GREEN, PLASTIC, MS-012AC, SOIC-16
文件頁數(shù): 18/23頁
文件大?。?/td> 920K
代理商: SN74LVC257ADT
www.ti.com
Electrical Characteristics
Switching Characteristics
SN54LVC257A, SN74LVC257A
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCAS294N – JANUARY 1993 – REVISED JUNE 2005
over recommended operating free-air temperature range (unless otherwise noted)
SN54LVC257A
SN74LVC257A
PARAMETER
TEST CONDITIONS
VCC
UNIT
MIN TYP(1)
MAX
MIN TYP(1)
MAX
IOH = –100 A
1.65 V to 3.6 V
VCC – 0.2
IOH = –100 A
2.7 V to 3.6 V
VCC – 0.2
IOH = –4 mA
1.65 V
1.2
VOH
IOH = –8 mA
2.3 V
1.7
V
2.7 V
2.2
IOH = –12 mA
3 V
2.4
IOH = –24 mA
3 V
2.2
1.65 V to 3.6 V
0.2
IOL = 100 A
2.7 V to 3.6 V
0.2
IOL = 4 mA
1.65 V
0.45
VOL
V
IOL = 8 mA
2.3 V
0.7
IOL = 12 mA
2.7 V
0.4
IOL = 24 mA
3 V
0.55
II
VI = 5.5 V or GND
3.6 V
±5
A
IOZ
VO = VCC or GND
3.6 V
±15
±10
A
ICC
VI = VCC or GND,
IO = 0
3.6 V
10
A
One input at VCC – 0.6 V,
I
CC
2.7 V to 3.6 V
500
A
Other inputs at VCC or GND
Ci
VI = VCC or GND
3.3 V
5
pF
Co
VO = VCC or GND
3.3 V
5
pF
(1)
All typical values are at VCC = 3.3 V, TA = 25°C.
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
SN54LVC257A
FROM
TO
VCC = 3.3 V
PARAMETER
VCC = 2.7 V
UNIT
(INPUT)
(OUTPUT)
± 0.3 V
MIN
MAX
MIN
MAX
A or B
5.4
1
4.6
tpd
Y
ns
A/B
7.5
1
6.4
ten
OE
Y
6.7
1
5.6
ns
tdis
OE
Y
4.7
0.5
4.3
ns
tsk(o)
1
ns
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
SN74LVC257A
FROM
TO
VCC = 1.8 V
VCC = 2.5 V
VCC = 3.3 V
PARAMETER
VCC = 2.7 V
UNIT
(INPUT)
(OUTPUT)
± 0.15 V
± 0.2 V
± 0.3 V
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
A or B
1
13.5
1
7.4
1
5.4
1
4.6
tpd
Y
ns
A/B
1
15.6
1
9.5
1
7.5
1
6.4
ten
OE
Y
1
14.6
1
8.7
1
6.7
1
5.6
ns
tdis
OE
Y
1
15.4
1
6.7
1
4.7
1
4.3
ns
tsk(o)
1
ns
4
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