參數(shù)資料
型號(hào): SN74ALVCH374DBRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: ALVC/VCX/A SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: GREEN, PLASTIC, SSOP-20
文件頁(yè)數(shù): 13/16頁(yè)
文件大?。?/td> 484K
代理商: SN74ALVCH374DBRG4
www.ti.com
PARAMETER MEASUREMENT INFORMATION
VM
VOH
VOL
th
tsu
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
S1
Open
GND
RL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at VLOAD
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
0 V
VOL + V
VOH V
0 V
VI
0 V
tw
VI
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Timing
Input
Data
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
VLOAD
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 .
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
0 V
VI
VM
tPHL
VM
VI
0 V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VM
tPLH
VLOAD
VLOAD/2
1.8 V
± 0.15 V
2.5 V
± 0.2 V
2.7 V
3.3 V
± 0.3 V
1 k
500
500
500
VCC
RL
2
× VCC
2
× VCC
6 V
VLOAD
CL
30 pF
50 pF
0.15 V
0.3 V
V
VCC
2.7 V
VI
VCC/2
1.5 V
VM
tr/tf
≤2 ns
≤2.5 ns
INPUT
SN74ALVCH374
OCTAL POSITIVE EDGE-TRIGGERED D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUTS
SCES118G – JULY 1997 – REVISED OCTOBER 2004
Figure 1. Load Circuit and Voltage Waveforms
6
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