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參數(shù)資料
| 型號(hào)： | 74LV688DB |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-bit magnitude comparator |
| 中文描述： | LV/LV-A/LVX/H SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 126K |
| 代理商： | 74LV688DB |
Philips Semiconductors
Product specification
74LV688
8-bit magnitude comparator
1998 Jun 23
6
AC CHARACTERISTICS
GND = 0V; t
r
= t
f
= 2.5ns; C
L
= 50pF; R
L
= 1K
CONDITION
LIMITS
SYMBOL
PARAMETER
WAVEFORM
–40 to +85
°
C
TYP
1
100
28
20
16
2
11
2
50
17
13
10
2
7
2
–40 to +125
°
C
MIN
UNIT
V
CC
(V)
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
MIN
MAX
–
45
32
26
18
–
29
21
17
12
MAX
–
57
40
33
22
–
38
27
22
15
Propagation delay
n
n
P
, Q
to P=Q
t
PHL
/t
PLH
2
ns
Propagation delay
E to P=Q
t
PHL
/t
PLH
1
ns
NOTES:
1. Unless otherwise stated, all typical values are at T
amb
= 25
°
C.
2. Typical value measured at V
CC
= 3.3V.
3. Typical value measured at V
CC
= 5.0V.
AC WAVEFORMS
V
M
= 1.5V at V
CC
V
and V
OH
are the typical output voltage drop that occur with the
output load.
2.7V; V
M
= 0.5 V
CC
at V
CC
2.7V.
E INPUT
V
M
t
PLH
t
PHL
V
OL
V
I
V
M
GND
V
OH
P = Q OUTPUT
SV00195
Waveform 1. Propagation delays from the enable input (E) to
the equal-to output (P = Q).
P
n
, Q
n
INPUT
V
M
V
M
P = Q OUTPUT
V
M
V
M
t
PHL
t
PLH
SV00194
Waveform 2. Propagation delays from the inputs (P
n
, Q
n
) to
the equal-to output (P = Q).
TEST CIRCUIT
PULSE
GENERATOR
R
T
V
l
D.U.T.
V
O
C
L
R
L
= 1k
V
cc
Test Circuit for Outputs
DEFINITIONS
R
L
= Load resistor
C
L
= Load capacitance includes jig and probe capacitiance
R
T
= Termination resistance should be equal to Z
OUT
of pulse generators.
V
CC
V
I
< 2.7V
2.7–3.6V
V
CC
2.7V
TEST
t
PLH/
t
PHL
≥
4.5 V
V
CC
50pF
SV00902
Waveform 3. Load circuitry for switching times
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| 74LV688DB-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Identity Comparator |
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| 74LV688PWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit magnitude comparator |
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