參數(shù)資料
型號: SN74LVCC4245ADB
廠商: Texas Instruments, Inc.
英文描述: Octal D-Type Flip-Flops With Clock Enable 20-SO -40 to 85
中文描述: 八路雙電源總線收發(fā)器可配置的輸出電壓和三態(tài)輸出
文件頁數(shù): 7/10頁
文件大?。?/td> 151K
代理商: SN74LVCC4245ADB
SN74LVCC4245A
OCTAL DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS
SCAS584F – NOVEMBER 1996 – REVISED AUGUST 1998
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION FOR A TO B
V
CCA
= 4.5 V TO 5.5 V AND V
CCB
= 3.6 V TO 5.5 V
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
7 V
Open
GND
500
500
3 V
0 V
tw
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
PULSE DURATION
tPLH
tPHL
VOH
VOL
Output
Control
Output
Waveform 1
S1 at 7 V
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
1.5 V
3.5 V
0 V
VOL + 0.3 V
VOH – 0.3 V
0 V
3 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
Output
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7 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.
1.5 V
1.5 V
Input
3 V
0 V
1.5 V
Input
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
Figure 2. Load Circuit and Voltage Waveforms
相關(guān)PDF資料
PDF描述
SN74LVCC4245 Octal Bus Transceivers With 3-State Outputs(八總線接收傳送器(可調(diào)輸出電壓,三態(tài)輸出))
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SN74LVCH16540 16-Bit Buffers/Drivers With 3-State Outputs(16位緩沖器/驅(qū)動器(三態(tài)輸出))
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