參數(shù)資料
型號(hào)： SN74AHCT138MDREP
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： AHCT/VHCT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
封裝： GREEN, SOIC-16
文件頁(yè)數(shù)： 6/11頁(yè)
文件大?。?/td> 311K
代理商： SN74AHCT138MDREP
SN74AHCT138-EP
3-LINE TO 8-LINE DECODER/DEMULTIPLEXER
SCLS491 – JUNE 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
5.5
V
VO
Output voltage
0
VCC
V
IOH
High-level output current
–8
mA
IOL
Low-level output current
8
mA
t/v
Input transition rise or fall rate
20
ns/V
TA
Operating free-air temperature
–55
125
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN
MAX
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
UNIT
VOH
IOH = –50 mA
45 V
4.4
4.5
4.4
V
VOH
IOH = –8 mA
4.5 V
3.94
3.8
V
VOL
IOL = 50 mA
45 V
0.1
V
VOL
IOL = 8 mA
4.5 V
0.36
0.5
V
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
40
mA
ICC
One input at 3.4 V,
Other inputs at VCC or GND
5.5 V
1.35
1.5
mA
Ci
VI = VCC or GND
5 V
2
10
pF
This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.
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
MIN
MAX
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
UNIT
tPLH
ABC
Any Y
CL =15 pF
7.6
10.4
1
12
ns
tPHL
A, B, C
Any Y
CL = 15 pF
7.6
10.4
1
12
ns
tPLH
G1
Any Y
CL =15 pF
6.6
9.1
1
10.5
ns
tPHL
G1
Any Y
CL = 15 pF
6.6
9.1
1
10.5
ns
tPLH
G2A G2B
Any Y
CL =15 pF
7
9.6
1
11
ns
tPHL
G2A, G2B
Any Y
CL = 15 pF
7
9.6
1
11
ns
tPLH
ABC
Any Y
CL =50 pF
8.1
11.4
1
13
ns
tPHL
A, B, C
Any Y
CL = 50 pF
8.1
11.4
1
13
ns
tPLH
G1
Any Y
CL =50 pF
7.1
10.1
1
11.5
ns
tPHL
G1
Any Y
CL = 50 pF
7.1
10.1
1
11.5
ns
tPLH
G2A G2B
Any Y
CL =50 pF
7.5
10.6
1
12
ns
tPHL
G2A, G2B
Any Y
CL = 50 pF
7.5
10.6
1
12
ns
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