參數(shù)資料
型號(hào): 74ACT11240DB
廠商: Texas Instruments, Inc.
英文描述: OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
中文描述: 八路緩沖器/線路驅(qū)動(dòng)器,具有三態(tài)輸出
文件頁(yè)數(shù): 4/5頁(yè)
文件大小: 85K
代理商: 74ACT11240DB
74ACT11240
OCTAL BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
SCAS210A – MAY 1987 – REVISED APRIL 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
tPHL
tPLH
Output
Input
1.5 V
1.5 V
3 V
0 V
50% VCC
50% VCC
VOH
VOL
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
×
VCC
GND
TEST
S1
VOLTAGE WAVEFORMS
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
×
VCC
500
500
GND
Open
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
×
VCC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
1.5 V
VCC
0 V
50% VCC
20% VCC
50% VCC
80% VCC
0 V
3 V
VOLTAGE WAVEFORMS
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
, tr = 3 ns, tf = 3 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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