參數(shù)資料
型號(hào): PI74AVC16821
廠商: Pericom Semiconductor Corp.
英文描述: GROUND PLATE
中文描述: 2.5V的20位總線接口觸發(fā)器具有三態(tài)輸出
文件頁(yè)數(shù): 8/10頁(yè)
文件大小: 519K
代理商: PI74AVC16821
PI74AVC+16821
2.5V 20-Bit Bus Interface
Flip-Flop with 3-State Outputs
8
PS8548 07/31/01
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PARAMETER MEASUREMENT INFORMATION
V
CC
= 2.5V ±0.2V
Load Circuit
Voltage Waveforms
Propagation Delay Times
Voltage Waveforms
Enable and Disable Times
Voltage Waveforms
Pulse Duration
t
T
1
S
t
d
p
Z
L
P
Z
H
P
t
t
t
t
L
H
Z
Z
P
P
n
C
D
e
p
V
N
O
x
G
2
C
Notes:
A. C
L
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 impulses are supplied by generators having the following characteristics: PRR
10 MHz, Z
O
= 50
, t
R
2.0ns, t
F
2.0ns.
D. The outputs are measured one at a time with one transition per measurement.
E. t
PLZ
and t
PHZ
are the same as t
dis
F. t
PZL
and t
PZH
are the same as t
en
G. t
PLH
and t
PHL
are the same as t
pd
Figure 3. Load Circuit and Voltage Waveforms
2
500
500
2xVCC
Open
GND
S1
From Output
Under Test
CL = 15pF
(See Note A)
t
PZL
Output
Control
(Low Level
Enabling)
0V
V
CC
/2
V
CC
/2
V
CC
/2
V
CC
/2
t
PLZ
t
PHZ
V
OL
V
CC
0V
t
PZH
+0.15V
–0.15V
Output
Waveform 1
S1 at 2 x V
CC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
V
OH
V
OH
V
OL
V
CC
Input
t
PLH
t
PHL
0V
Output
V
OH
V
OL
V
CC
/2
V
CC
/2
V
CC
/2
V
CC
V
CC/2
Input
t
W
V
CC
/2
V
CC
V
CC
/2
0V
Data
Input
t
su
t
h
V
CC
/2
V
CC
V
CC
/2
0V
V
CC
0V
Timing
Input
V
CC
/2
Voltage Waveforms
Setup and Hold Times
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