參數(shù)資料
型號(hào)： SNJ54HC688W
廠商： TEXAS INSTRUMENTS INC
元件分類： 算術(shù)邏輯單元
英文描述： HC/UH SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDFP20
封裝： CERAMIC, DFP-20
文件頁(yè)數(shù)： 9/15頁(yè)
文件大?。?/td> 549K
代理商： SNJ54HC688W
SN54HC688, SN74HC688
8-BIT IDENTITY COMPARATORS
SCLS010D – DECEMBER 1982 – REVISED AUGUST 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54HC688
SN74HC688
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
2
5
6
2
5
6
V
High-level input voltage
VCC = 2 V
1.5
V
VIH
High-level input voltage
VCC = 4.5 V
3.15
V
IH
VCC = 6 V
4.2
V
Low-level input voltage
VCC = 2 V
0.5
V
VIL
Low-level input voltage
VCC = 4.5 V
1.35
V
IL
VCC = 6 V
1.8
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
t
Input transition (rise and fall) time
VCC = 2 V
1000
ns
tt
Input transition (rise and fall) time
VCC = 4.5 V
500
ns
t
VCC = 6 V
400
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54HC688
SN74HC688
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
V
V = V
or V
I
= –20 A
2 V
1.9
1.998
1.9
V
V = V
or V
IOH = –20 A
4.5 V
4.4
4.499
4.4
V
VOH
VI = VIH or VIL
OH
6 V
5.9
5.999
5.9
V
OH
IIH
IL
IOH = –4 mA
4.5 V
3.98
4.3
3.7
3.84
IOH = –5.2 mA
6 V
5.48
5.8
5.2
5.34
V
V = V
or V
I
= 20 A
2 V
0.002
0.1
V
V = V
or V
IOL = 20 A
4.5 V
0.001
0.1
V
VOL
VI = VIH or VIL
OL
6 V
0.001
0.1
V
OL
IIH
IL
IOL = 4 mA
4.5 V
0.17
0.26
0.4
0.33
IOL = 5.2 mA
6 V
0.15
0.26
0.4
0.33
II
VI = VCC or 0
6 V
±0.1
±100
±1000
nA
ICC
VI = VCC or 0,
IO = 0
6 V
8
160
80
A
Ci
2 V to 6 V
3
10
pF
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