參數(shù)資料
型號(hào)： SN74LVTZ244DWRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝： GREEN, PLASTIC, SOIC-20
文件頁數(shù)： 12/15頁
文件大?。?/td> 451K
代理商： SN74LVTZ244DWRG4
SN54LVTZ244, SN74LVTZ244
3.3V ABT OCTAL BUFFERS/DRIVERS
WITH 3STATE OUTPUTS
SCBS302C SEPTEMBER 1993 REVISED JULY 1995
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
PARAMETER MEASUREMENT INFORMATION
1.5 V
th
tsu
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT FOR OUTPUTS
S1
6 V
Open
GND
500
500
Data Input
Timing Input
1.5 V
2.7 V
0 V
1.5 V
2.7 V
0 V
2.7 V
0 V
1.5 V
tw
Input
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
PULSE DURATION
tPLH
tPHL
tPLH
VOH
VOL
1.5 V
2.7 V
0 V
1.5 V
Input
1.5 V
Output
Control
Output
Waveform 1
S1 at 6 V
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
3 V
0 V
1.5 V
VOL + 0.3 V
1.5 V
VOH 0.3 V
[ 0 V
2.7 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
Output
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
6 V
GND
TEST
S1
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, ZO = 50 , tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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