- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98138 > SNJ54HCT645FK (TEXAS INSTRUMENTS INC) HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 PDF資料下載
參數(shù)資料
| 型號： | SNJ54HCT645FK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 471K |
| 代理商： | SNJ54HCT645FK |
SN54HCT645, SN74HCT645
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCLS019D MARCH 1984 REVISED AUGUST 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
RL
VCC
S1
S2
LOAD CIRCUIT
PARAMETER
CL
tPZH
tpd or tt
tdis
ten
tPZL
tPHZ
tPLZ
1 k
1 k
50 pF
or
150 pF
50 pF
Open
Closed
RL
S1
Closed
Open
S2
Open
Closed
Open
50 pF
or
150 pF
Open
NOTES: A. CL includes probe and test-fixture 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. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR
≤ 1 MHz, ZO = 50 , tr = 6 ns, tf = 6 ns.
D. The outputs are measured one at a time with one input 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.
CL
(see Note A)
Test
Point
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
1.3 V
0.3 V
2.7 V
3 V
0 V
tr
tf
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT RISE AND FALL TIMES
1.3 V
10%
90%
3 V
VOH
VOL
0 V
tr
tf
Input
In-Phase
Output
1.3 V
tPLH
tPHL
1.3 V
10%
90%
VOH
VOL
tr
tf
tPHL
tPLH
Out-of-
Phase
Output
1.3 V
10%
90%
3 V
≈VCC
VOL
0 V
Output
Control
(Low-Level
Enabling)
Output
Waveform 1
(See Note B)
1.3 V
tPZL
tPLZ
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS
VOH
≈0 V
1.3 V
tPZH
tPHZ
Output
Waveform 2
(See Note B)
Figure 1. Load Circuit and Voltage Waveforms
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SNJ54HCT74W | HCT SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, CDFP14 |
| SNJ54LS136FK | LS SERIES, QUAD 2-INPUT XOR GATE, CQCC20 |
| SNJ54LS139AJ | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16 |
| SNJ54LS139AW | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16 |
| SNJ54LS165AW | LS SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, COMPLEMENTARY OUTPUT, CDFP16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SNJ54HCU04J | 制造商:Texas Instruments 功能描述:Inverter 6-Element CMOS 14-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:8601001CA, HEX INVERTER - Bulk |
| SNJ54HCU0FK | 制造商:Texas Instruments 功能描述: |
| SNJ54L00J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SNJ54L04J | 制造商:Texas Instruments 功能描述: |
| SNJ54L10J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。