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參數(shù)資料
| 型號： | 74F410 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Register Stacká16 x 4 RAM TRI-STATEE Output Register |
| 中文描述： | 注冊Stacká16 × 4內(nèi)存三STATEE輸出寄存器 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大?。?/td> | 52K |
| 代理商： | 74F410 |
Philips Semiconductors FAST Products
Product specification
74F410
Register stack – 16
×
4 RAM 3-State output register
January 8, 1990
5
AC WAVEFORMS
Waveform 1. Read cycle timing
CP
V
M
V
M
V
M
V
M
V
M
V
M
t
su
(H)
t
h
(H)
An
V
M
t
w
(H)
t
su
(L)
t
h
(L)
V
M
V
M
Qn
t
w
(L)
t
PLH
Waveform 2. Write cycle timing
WE
V
M
V
M
V
M
V
M
V
M
V
M
CS
t
su
(H)
t
h
(H)
t
su
(L)
t
h
(L)
t
su
(L)
t
h
(L)
V
M
t
su
(H)
t
h
(H)
V
M
V
M
V
M
V
M
V
M
t
su
(H)
t
h
(H)
An,
Dn
t
su
(L)
t
h
(L)
V
M
V
M
V
M
V
M
CS
WE
CP
Waveform 3. 3-State output enable time to high level
and output disable time from high level
V
M
V
M
V
M
t
PHZ
t
PZH
V
OH
-0.3V
0V
OE
Qn
Waveform 4. 3-State output enable time to low level
and output disable time from low level
V
M
V
M
V
M
t
PLZ
t
PZL
V
OL
+0.3V
Qn
OE
t
PHL
NOTES:
1. For all waveforms, V
M
= 1.5V.
2. The shaded areas indicate when the input is permitted to change for predictable output performance.
TEST CIRCUIT AND WAVEFORM
t
W
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
NEGATIVE
PULSE
POSITIVE
PULSE
t
W
AMP (V)
0V
0V
t
THL (
t
f
)
INPUT PULSE REQUIREMENTS
rep. rate
t
W
t
TLH
t
THL
2.5ns
1MHz
500ns 2.5ns
Input pulse definition
V
CC
family
74F
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test circuit for 3–state outputs
SWITCH POSITION
TEST
SWITCH
closed
open
All other
DEFINITIONS:
R
L
=
Load resistor; see AC electrical characteristics for
value.
Load capacitance includes jig and probe
capacitance; see AC electrical characteristics for
value
Termination resistance should be equal to Z
OUT
of
pulse generators.
C
L
=
R
T
=
t
THL (
t
f
)
t
TLH (
t
r
)
t
TLH (
t
r
)
AMP (V)
amplitude
3.0V
1.5V
V
M
R
L
7.0V
t
PLZ
, t
PZL
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