参数资料
型号: SN74LS14DR
厂商: TEXAS INSTRUMENTS INC
元件分类: 门电路
英文描述: LS SERIES, HEX 1-INPUT INVERT GATE, PDSO14
封装: GREEN, PLASTIC, MS-012AB, SOIC-14
文件页数: 21/25页
文件大小: 813K
代理商: SN74LS14DR
SN5414, SN54LS14,
SN7414, SN74LS14
HEX SCHMITT-TRIGGER INVERTERS
SDLS049B – DECEMBER 1983 – REVISED FEBRUARY 2002
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS
SN5414
SN7414
UNIT
PARAMETER
(INPUT)
(OUTPUT)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
MIN
TYP
MAX
tPLH
A
Y
RL = 400
CL =15 pF
15
22
ns
tPHL
A
Y
RL = 400 ,
CL = 15 F
15
22
ns
recommended operating conditions
SN54LS14
SN74LS14
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.75
5
5.25
V
IOH
High-level output current
–0.4
mA
IOL
Low-level output current
4
8
mA
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54LS14
SN74LS14
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VT+
VCC = 5 V
1.4
1.6
1.9
1.4
1.6
1.9
V
VT–
VCC = 5 V
0.5
0.8
1
0.5
0.8
1
V
Hysteresis
(VT+ – VT–)
VCC = 5 V
0.4
0.8
0.4
0.8
V
VIK
VCC = MIN,
II = –18 mA
–1.5
V
VOH
VCC = MIN,
VI = 0.5 V,
IOH = –0.4 mA
2.5
3.4
2.7
3.4
V
VOL
VCC = MIN
VI = 19 V
IOL= 4 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = MIN,
VI = –1.9 V
IOL = 8 mA
0.35
0.5
V
IT+
VCC = 5 V,
VI = VT+
–0.14
mA
IT–
VCC = 5 V,
VI = VT–
–0.18
mA
II
VCC = MAX,
VI = 7 V
0.1
mA
IIH
VCC = MAX,
VIH = 2.7 V
20
A
IIL
VCC = MAX,
VIL = 0.4 V
–0.4
mA
IOS§
VCC = MAX
–20
–100
–20
–100
mA
ICCH
VCC = MAX
8.6
16
8.6
16
mA
ICCL
VCC = MAX
12
21
12
21
mA
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
All typical values are at VCC = 5 V, TA = 25°C.
§ Not more than one output should be shorted at a time, and duration of the short-circuit should not exceed one second.
switching characteristics, VCC = 5 V, TA = 25°C (see Figure 2)
PARAMETER
FROM
TO
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
(INPUT)
(OUTPUT)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
A
Y
RL =2k
CL =15 pF
15
22
ns
tPHL
A
Y
RL = 2 k,
CL = 15 F
15
22
ns
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