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| 型號： | SN54ALS165J |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | PARALLEL-LOAD 8-BIT REGISTERS |
| 中文描述： | 并行-載重8位寄存器 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大小： | 114K |
| 代理商： | SN54ALS165J |
SN54ALS165, SN74ALS165
PARALLEL-LOAD 8-BIT REGISTERS
SDAS157B – JUNE 1982 – REVISED DECEMBER 1994
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figures 1, 2, and 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500
,
TA = MIN to MAX
SN54ALS165
MIN
MAX
UNIT
SN74ALS165
MIN
MAX
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
35
45
MHz
SH/LD
Any
4
23
4
20
ns
4
23
4
22
CLK
Any
3
14
3
13
ns
3
15
3
14
H
QH
3
14
3
13
ns
3
18
3
16
H
QH
2
3
17
17
2
3
15
16
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
PARAMETER MEASUREMENT INFORMATION
tw(load)
tw(load)
(disable while
clock is high)
0.3 V
3.5 V
0.3 V
3.5 V
0.3 V
3.5 V
0.3 V
VOH
VOL
VOH
VOL
Vref
tsu1
tw(CLK)
tw(CLK)
tsu2
tsu2
Vref
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
Vref
Vref
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Vref
CLK INH
CLK
F and H
Inputs
(see Notes
A and B)
SH/LD
Output
QH
Output
QH
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
Vref
NOTES: A. The remaining six data inputs and SER are low.
B. Prior to test, high-level data is loaded into the H input.
C. The input pulse generators have the following characteristics: PRR
≤
1 MHz, duty cycle
≤
50%, tr = tf = 2 ns.
D. Vref = 1.3 V
Figure 1. Voltage Waveforms
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