參數(shù)資料
型號: SN54ABT845
廠商: Texas Instruments, Inc.
英文描述: Octal Bus Interface D-Type Latches With 3-State Outputs(八總線接口D鎖存器(三態(tài)輸出))
中文描述: 八路總線接口D類鎖存器與三態(tài)輸出(八總線接口?鎖存器(三態(tài)輸出))
文件頁數(shù): 6/7頁
文件大?。?/td> 117K
代理商: SN54ABT845
SN54ABT845, SN74ABT845
OCTAL BUS INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS169 – FEBRUARY 1991–REVISED OCTOBER 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
6
PARAMETER MEASUREMENT INFORMATION
th
tsu
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT FOR OUTPUTS
S1
7 V
Open
GND
500
500
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
7 V
Open
tPLH
tPHL
Output
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 7 V
(see Note C)
Output
Waveform 2
S1 at Open
(see Note C)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
1.5 V
1.5 V
1.5 V
3.5 V
3 V
0 V
1.5 V
1.5 V
VOH
VOL
0 V
1.5 V
VOL + 0.3 V
1.5 V
VOH – 0.3 V
0 V
3 V
Data Input
Timing Input
1.5 V
3 V
0 V
1.5 V
1.5 V
3 V
0 V
3 V
0 V
1.5 V
1.5 V
tw
Input
Input
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR
10 MHz, Zo = 50
, tr
2.5 ns, tf
2.5 ns.
C. 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.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
P
相關PDF資料
PDF描述
SN74ABT845 Octal Bus Interface D-Type Latches With 3-State Outputs(八總線接口D觸發(fā)器(三態(tài)輸出))
SN54ABT8543FK SCAN TEST DEVICES WITH OCTAL REGISTERED BUS TRANSCEIVERS
SN54ABT8543JT SCAN TEST DEVICES WITH OCTAL REGISTERED BUS TRANSCEIVERS
SN54ABT854 8-Bit To 9-Bit Parity Bus Transceivers(8-9奇偶總線收發(fā)器)
SN74ABT854 8-Bit To 9-Bit Parity Bus Transceivers(8-9奇偶總線收發(fā)器)
相關代理商/技術參數(shù)
參數(shù)描述
SN54ABT853 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SN54ABT853FK 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SN54ABT853JT 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SN54ABT853W 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT TO 9-BIT PARITY BUS TRANSCEIVERS
SN54ABT8543 制造商:TI 制造商全稱:Texas Instruments 功能描述:SCAN TEST DEVICES WITH OCTAL REGISTERED BUS TRANSCEIVERS