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參數(shù)資料
| 型號： | 74LV688 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit magnitude comparator |
| 中文描述： | 8位數(shù)值比較 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 126K |
| 代理商： | 74LV688 |
Philips Semiconductors
Product specification
74LV688
8-bit magnitude comparator
2
1998 Jun 23
853-1878 19618
FEATURES
Wide operating voltage: 1.0 to 5.5V
Optimized for low voltage applications: 1.0V to 3.6V
Accepts TTL input levels between V
CC
= 2.7V and V
CC
= 3.6V
Typical V
OLP
(output ground bounce) < 0.8V at V
CC
= 3.3V,
T
amb
= 25
°
C
Typical V
OHV
(output V
OH
undershoot) > 2V at V
CC
= 3.3V,
T
amb
= 25
°
C
Compare two 8-bit words
Output capability: standard
I
CC
category: MSI
DESCRIPTION
The 74LV688 is a high-speed Si-gate CMOS device, pin compatible
with the 74HC/HCT688
The 74LV688 is an 8-bit magnitude comparator. It performs
comparisons of two 8-bit binary or BCD words. The output provides
P = Q (equal-to).
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
Propagation delay P
n
, Q
n
to P=Q
C
L
= 15pF
V
CC
= 3.3V
17
ns
C
I
Input capacitance
3.5
pF
C
PD
NOTE:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in W):
P
D
= C
PD
×
V
CC2
×
f
i
+ (C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
×
V
CC2
×
f
o
) = sum of outputs.
Power dissipation capacitance per gate
V
I
= GND to V
CC1
22
pF
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic DIL
–40
°
C to +125
°
C
74LV688 N
74LV688 N
SOT146-1
20-Pin Plastic SO
–40
°
C to +125
°
C
74LV688 D
74LV688 D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°
C to +125
°
C
74LV688 DB
74LV688 DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°
C to +125
°
C
74LV688 PW
74LV688PW DH
SOT360-1
PIN CONFIGURATION
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
V
CC
15
16
17
18
19
20
E
P0
Q0
P1
Q1
P2
Q2
P3
Q3
P = Q
Q7
P7
Q6
P6
Q5
P5
Q4
P4
SY00054
PIN DESCRIPTION
PIN NO.
SYMBOL
FUNCTION
1
E
Enable input (active LOW)
2, 4, 6, 8, 11,
13, 15, 17
P0 to P7
Word inputs
3, 5, 7, 9, 12,
14, 16, 18
Q0 to Q7
Word inputs
10
GND
Ground (0V)
19
P=Q
Equal to output
20
V
CC
Positive Supply Voltage
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74LV688D | 8-bit magnitude comparator |
| 74LV688N | 8-bit magnitude comparator |
| 74LV688PW | 8-bit magnitude comparator |
| 74LV688DB | 8-bit magnitude comparator |
| 74LV74DB-T | Dual D-Type Flip-Flop |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LV688D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit magnitude comparator |
| 74LV688DB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit magnitude comparator |
| 74LV688DB-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Identity Comparator |
| 74LV688D-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Identity Comparator |
| 74LV688N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit magnitude comparator |
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