參數(shù)資料
型號(hào)： SN74AHCT138DBRE4
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/VT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
封裝： GREEN, PLASTIC, SSOP-16
文件頁(yè)數(shù)： 22/26頁(yè)
文件大?。?/td> 1057K
代理商： SN74AHCT138DBRE4
SN54AHCT138, SN74AHCT138
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS266M DECEMBER 1995 REVISED JULY 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50% VCC
3 V
0 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Data Input
tPLH
tPHL
tPLH
VOH
VOL
3 V
0 V
50% VCC
Input
Out-of-Phase
Output
In-Phase
Output
Timing Input
50% VCC
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Control
Output
Waveform 1
S1 at VCC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
≈VCC
0 V
50% VCC
VOL + 0.3 V
50% VCC
≈0 V
3 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open Drain
Open
VCC
GND
VCC
TEST
S1
3 V
0 V
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Input
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns.
D. The outputs are measured one at a time with one input transition per measurement.
E. All parameters and waveforms are not applicable to all devices.
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT FOR
3-STATE AND OPEN-DRAIN OUTPUTS
S1
VCC
RL = 1 kΩ
GND
From Output
Under Test
CL
(see Note A)
Test
Point
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
Open
VOH 0.3 V
1.5 V
Figure 1. Load Circuit and Voltage Waveforms
相關(guān)PDF資料
PDF描述
SN74AHCT138DRG4 AHCT/VHCT/VT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
SN74AHCT138PW AHCT/VHCT/VT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
SN74AHCT138DR AHCT/VHCT/VT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
SNJ54AHCT138J AHCT/VHCT/VT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16
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SN74AHCT138DGVR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Line Decoder 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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