參數(shù)資料
型號(hào): SN74AHCT258
廠商: Texas Instruments, Inc.
英文描述: Quadruple 2-Line To 1-Line Data Selectors/Multiplexers(四2選1數(shù)據(jù)選擇器(三態(tài)輸出))
中文描述: 四2線1線數(shù)據(jù)選擇器/多路轉(zhuǎn)換器(四2選1數(shù)據(jù)選擇器(三態(tài)輸出))
文件頁(yè)數(shù): 4/6頁(yè)
文件大小: 140K
代理商: SN74AHCT258
SN54AHCT258, SN74AHCT258
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCLS344C – MAY 1996 – REVISED JUNE 1997
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
LOAD
SN54AHCT258
TA = 25
°
C
TYP
4.1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MIN
MAX
6.4
tPLH*
tPHL*
tPLH*
tPHL*
tPZH*
tPZL*
tPHZ*
tPLZ*
tPLH
tPHL
tPLH
tPLH
tPZH
tPZL
tPHZ
tPLZ
A or B
Y
CL= 15 pF
CL = 15 pF
1
7.5
ns
4.1
6.4
1
7.5
A/B
Y
CL= 15 pF
CL = 15 pF
5.3
8.1
1
9.5
ns
5.3
8.1
1
9.5
OE
Y
CL= 15 pF
CL = 15 pF
5.6
8.6
1
10
ns
5.6
8.6
1
10
OE
Y
CL= 15 pF
CL = 15 pF
ns
A or B
Y
CL= 50 pF
CL = 50 pF
5.6
8.4
1
9.5
ns
5.6
8.4
1
9.5
A/B
Y
CL= 50 pF
CL = 50 pF
6.8
10.1
1
11.5
ns
6.8
10.1
1
11.5
OE
Y
CL= 50 pF
CL = 50 pF
7.1
10.6
1
12
ns
7.1
10.6
1
12
OE
Y
CL= 50 pF
CL = 50 pF
ns
* On products compliant to MIL-PRF-38535, this parameter is ensured but not production tested.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
LOAD
SN74AHCT258
TA = 25
°
C
TYP
4.1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MIN
MAX
6.4
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPLH
tPLH
tPZH
tPZL
tPHZ
tPLZ
A or B
Y
CL= 15 pF
CL = 15 pF
1
7.5
ns
4.1
6.4
1
7.5
A/B
Y
CL= 15 pF
CL = 15 pF
5.3
8.1
1
9.5
ns
5.3
8.1
1
9.5
OE
Y
CL= 15 pF
CL = 15 pF
5.6
8.6
1
10
ns
5.6
8.6
1
10
OE
Y
CL= 15 pF
CL = 15 pF
ns
A or B
Y
CL= 50 pF
CL = 50 pF
5.6
8.4
1
9.5
ns
5.6
8.4
1
9.5
A/B
Y
CL= 50 pF
CL = 50 pF
6.8
10.1
1
11.5
ns
6.8
10.1
1
11.5
OE
Y
CL= 50 pF
CL = 50 pF
7.1
10.6
1
12
ns
7.1
10.6
1
12
OE
Y
CL= 50 pF
CL = 50 pF
ns
P
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