參數(shù)資料
型號(hào)： SN54HC138FK
廠商： Texas Instruments, Inc.
英文描述： .39UF/100VDC METAL POLY CAP
中文描述： 3線至8線解碼器/解復(fù)用器
文件頁數(shù)： 5/16頁
文件大小： 540K
代理商： SN54HC138FK
SCLS107E DECEMBER 1982 REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
TYP
SN54HC138
MIN
SN74HC138
MIN
UNIT
(OUTPUT)
MIN
MAX
180
MAX
270
MAX
225
2 V
67
A, B, or C
Any Y
4.5 V
18
36
54
45
tpd
6 V
15
31
46
38
ns
2 V
66
155
235
195
Enable
Any Y
4.5 V
18
31
47
39
6 V
15
26
40
33
2 V
38
75
110
95
tt
Any
4.5 V
6 V
8
6
15
13
22
19
19
16
ns
operating characteristics, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
85
pF
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
50%
10%
50%
10%
90%
90%
VCC
0 V
tr
tf
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
50%
50%
10%
50%
10%
90%
90%
VCC
VOH
VOL
0 V
tr
tf
Input
In-Phase
Output
50%
tPLH
tPHL
50%
10%
50%
10%
90%
90%
VOH
VOL
tr
tf
tPHL
tPLH
Out-of-Phase
Output
Test
Point
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
NOTES: A. CL includes probe and test-fixture capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR
≤
1 MHz, ZO = 50
, tr = 6 ns, tf = 6 ns.
C. The outputs are measured one at a time with one input transition per measurement.
D. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
相關(guān)PDF資料
PDF描述
SN54HC138W 800mA, 5.0V Output, Low Dropout Voltage Regulator, Pb Free Device; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500
SN54HC163FK 4-BIT SYNCHRONOUS BINARY COUNTERS
SN54HC163W 300mA, 5.0V ±1% Output Voltage, Low Dropout Voltage Regulator; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
SN74HC163DBR 4-BIT SYNCHRONOUS BINARY COUNTERS
SN54HC193FK 4-BIT SYNCHRONOUS UP/DOWN COUNTERS DUAL CLOCK WITH CLEAR
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