參數(shù)資料
型號(hào)： SN74HC148D
廠商： TEXAS INSTRUMENTS INC
元件分類： 算術(shù)邏輯單元
英文描述： HC/UH SERIES, 8-BIT ENCODER, INVERTED OUTPUT, PDSO16
封裝： GREEN, PLASTIC, MS-012AC, SOIC-16
文件頁(yè)數(shù)： 18/21頁(yè)
文件大小： 814K
代理商： SN74HC148D
SN54HC148, SN74HC148
8LINE TO 3LINE PRIORITY ENCODERS
SCLS109G MARCH 1984 REVISED APRIL 2004
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
35
pF
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
50%
10%
90%
VCC
0 V
tr
tf
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
50%
10%
90%
VCC
VOH
VOL
0 V
tr
tf
Input
In-Phase
Output
50%
tPLH
tPHL
50%
10%
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74HC148D 制造商:Texas Instruments 功能描述:IC ENCODER SMD SOIC16
SN74HC148D 制造商:Texas Instruments 功能描述:Logic - Encoder IC
SN74HC148DB 制造商:Texas Instruments 功能描述:
SN74HC148DBR 制造商:Texas Instruments 功能描述:
SN74HC148DE4 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Line To 3-Line Priority Encoders RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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