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參數(shù)資料
| 型號(hào)： | SN74BCT8240ADWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 總線收發(fā)器 |
| 英文描述： | BCT/FBT SERIES, DUAL 4-BIT BOUNDARY SCAN DRIVER, INVERTED OUTPUT, PDSO24 |
| 封裝： | GREEN, PLASTIC, SOIC-24 |
| 文件頁(yè)數(shù)： | 13/25頁(yè) |
| 文件大?。?/td> | 414K |
| 代理商： | SN74BCT8240ADWR |
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SN54BCT8240A, SN74BCT8240A
SCAN TEST DEVICES
WITH OCTAL INVERTING BUFFERS
SCBS067E – FEBRUARY 1990 – REVISED DECEMBER 1996
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
Test
Point
R1
CL
(see Note A)
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
LOAD CIRCUIT FOR
3-STATE AND OPEN-COLLECTOR OUTPUTS
R1
S1
7 V (tPZL, tPLZ, O.C.)
Open
(all others)
From Output
Under Test
Test
Point
R2
CL
(see Note A)
RL = R1 = R2
1.5 V
3 V
0 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing Input
Data Input
1.5 V
3 V
0 V
High-Level
Pulse
Low-Level
Pulse
tw
VOLTAGE WAVEFORMS
PULSE DURATION
1.5 V
tPHL
tPLH
tPHL
Input
Out-of-Phase
Output
1.5 V
3 V
0 V
VOL
VOH
VOL
In-Phase
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES (see Note D)
tPHZ
tPLZ
0.3 V
tPZL
tPZH
1.5 V
3 V
0 V
Output
Control
(low-level enable)
Waveform 1
(see Note B)
Waveform 2
(see Note B)
0 V
VOH
VOL
3.5 V
0.3 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
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
≤ 10 MHz, tr = tf ≤ 2.5 ns, duty cycle = 50%.
D. The outputs are measured one at a time with one transition per measurement.
E. When measuring propagation delay times of 3-state outputs, switch S1 is open.
Figure 9. Load Circuits and Voltage Waveforms
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| SN74BCT8240ADWRE4 | 功能描述:特定功能邏輯 Prog PCM w/Microphn Amps & Speaker Drvr RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube |
| SN74BCT8240ADWRG4 | 功能描述:特定功能邏輯 IEEE Std 1149.1 Bndry Sacn Tst Devic RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube |
| SN74BCT8240ANT | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Device w/Octal Inverting Buffers RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74BCT8240ANTE4 | 功能描述:特定功能邏輯 Device w/Octal Inverting Buffers RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube |
| SN74BCT8244ADW | 功能描述:特定功能邏輯 Device w/Octal Buffers RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube |
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