参数资料
型号: SN74AHCT257PWLE
厂商: TEXAS INSTRUMENTS INC
元件分类: 编、解码器及复用、解复用
英文描述: AHC SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
封装: PLASTIC, TSSOP-16
文件页数: 5/7页
文件大小: 112K
代理商: SN74AHCT257PWLE
SN54AHCT257, SN74AHCT257
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCLS351E – MAY 1996 – REVISED OCTOBER 1998
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
FROM
TO
LOAD
SN74AHCT257
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
TA = 25°C
MIN
MAX
UNIT
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
tPLH
AorB
Y
CL =15 pF
ns
tPHL
A or B
Y
CL = 15 pF
ns
tPLH
A/B
Y
CL =15 pF
ns
tPHL
A/B
Y
CL = 15 pF
ns
tPZH
OE
Y
CL =15 pF
ns
tPZL
OE
Y
CL = 15 pF
ns
tPHZ
OE
Y
CL =15 pF
ns
tPLZ
OE
Y
CL = 15 pF
ns
tPLH
AorB
Y
CL =50 pF
ns
tPHL
A or B
Y
CL = 50 pF
ns
tPLH
A/B
Y
CL =50 pF
ns
tPLH
A/B
Y
CL = 50 pF
ns
tPZH
OE
Y
CL =50 pF
ns
tPZL
OE
Y
CL = 50 pF
ns
tPHZ
OE
Y
CL =50 pF
ns
tPLZ
OE
Y
CL = 50 pF
ns
noise characteristics VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4)
PARAMETER
SN74AHCT257
UNIT
PARAMETER
MIN
TYP
MAX
UNIT
VOL(P)
Quiet output, maximum dynamic VOL
V
VOL(V)
Quiet output, minimum dynamic VOL
V
VOH(V)
Quiet output, minimum dynamic VOH
V
VIH(D)
High-level dynamic input voltage
V
VIL(D)
Low-level dynamic input voltage
V
NOTE 4: Characteristics are for surface-mount packages only.
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load,
f = 1 MHz
pF
PRODUCT
PREVIEW
相关PDF资料
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SN74AHCT257DGV AHC SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
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