參數(shù)資料
型號(hào)： SN74LV21ANSR
廠商： TEXAS INSTRUMENTS INC
元件分類： 門電路
英文描述： LV/LV-A/LVX/H SERIES, DUAL 4-INPUT AND GATE, PDSO14
封裝： GREEN, PLASTIC, SOP-14
文件頁數(shù)： 12/17頁
文件大小： 580K
代理商： SN74LV21ANSR
SN54LV21A, SN74LV21A
DUAL 4INPUT POSITIVEAND GATES
SCES340E SEPTEMBER 2000 REVISED APRIL 2005
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54LV21A
SN74LV21A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A, B, C, or D
Y
CL = 15 pF
7*
12*
1*
14*
1
14
ns
tpd
A, B, C, or D
Y
CL = 50 pF
9.2
15.7
1
19
1
19
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54LV21A
SN74LV21A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A, B, C, or D
Y
CL = 15 pF
5.1*
7*
1*
8.5*
1
8.5
ns
tpd
A, B, C, or D
Y
CL = 50 pF
6.6
10.5
1
12
1
12
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54LV21A
SN74LV21A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A, B, C, or D
Y
CL = 15 pF
3.8*
5*
1*
6*
1
6
ns
tpd
A, B, C, or D
Y
CL = 50 pF
4.9
7
1
8
1
8
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 5)
PARAMETER
SN74LV21A
UNIT
PARAMETER
MIN
TYP
MAX
UNIT
VOL(P)
Quiet output, maximum dynamic VOL
0.2
0.8
V
VOL(V)
Quiet output, minimum dynamic VOL
0
0.8
V
VOH(V)
Quiet output, minimum dynamic VOH
3.2
V
VIH(D)
High-level dynamic input voltage
2.31
V
VIL(D)
Low-level dynamic input voltage
0.99
V
NOTE 5: Characteristics are for surface-mount packages only.
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
VCC
TYP
UNIT
Cpd
Power dissipation capacitance
CL = 50 pF,
f = 10 MHz
3.3 V
17.4
pF
Cpd
Power dissipation capacitance
CL = 50 pF,
f = 10 MHz
5 V
20.2
pF
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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SN74LV21APWE4 功能描述:邏輯門 Dual 4-Input Positive AND Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel
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