參數(shù)資料
型號(hào)： TPS3305
廠(chǎng)商： Texas Instruments, Inc.
英文描述： DUAL PROCESSOR SUPERVISORS
中文描述： 雙處理器監(jiān)事
文件頁(yè)數(shù)： 7/13頁(yè)
文件大?。?/td> 236K
代理商： TPS3305
TPS3305-18, TPS3305-25, TPS3305-33
DUAL PROCESSOR SUPERVISORS
SLVS198 – DECEMBER 1998
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VDD = 2.7 V to 6 V, IOH = –20
μ
A
VDD = 3.3 V,
VDD = 6 V,
VDD = 2.7 V to 6 V, IOL = 20
μ
A
VDD = 3.3 V,
VDD = 6 V,
VDD
≥
1.1 V,
MIN
TYP
MAX
UNIT
VDD– 0.2V
VDD– 0.4V
VDD– 0.4V
VOH
High-level output voltage
IOH = –2 mA
IOH = –3 mA
V
0.2
VOL
Low-level output voltage
IOL = 2 mA
IOL = 3 mA
IOL = 20
μ
A
0.4
V
0.4
Power-up reset voltage (see Note 2)
0.4
V
1.64
1.68
1.72
VSENSE1,
VSENSE2
VDD = 2.7 V to 6 V,
TA = 0
°
C to 85
°
C
2.20
2.25
2.30
V
2.86
2.93
3
VIT–
Negative-going input threshold voltage
(see Note 3)
4.46
4.55
4.64
1.64
1.68
1.73
VSENSE1,
VSENSE2
VDD = 2.7 V to 6 V,
TA =–40
°
C to 85
°
C
2.20
2.25
2.32
V
2.86
2.93
3.02
4.46
4.55
4.67
VIT– = 1.68 V
VIT– = 2.25 V
VIT– = 2.93 V
VIT– = 4.55 V
WDI = VDD = 6 V
Time average (dc = 88%)
15
Vhys
Hysteresis at VSENSEn input
20
mV
30
40
IH(AV)
Average high-level input current
WDI
100
150
μ
A
IL(AV)
Average low-level input current
WDI = 0 V,
Time average (dc = 12%)
VDD = 6 V,
–15
–20
WDI
WDI = VDD = 6 V,
MR = 0.7
×
VDD,
VSENSE1 = VDD = 6 V
VSENSE2 = VDD = 6 V
WDI = 0 V,
120
170
IH
High level input current
High-level input current
MR
VDD = 6 V
–130
–180
μ
A
SENSE1
5
8
SENSE2
6
9
WDI
VDD, = 6 V
VDD = 6 V
–120
–170
IL
Low-level input current
MR
MR = 0V,
–430
–600
μ
A
SENSEn
VSENSE1,2 = 0 V
–1
1
IDD
Ci
NOTES:
Supply current
40
μ
A
pF
Input capacitance
2. The lowest supply voltage at which RESET becomes active. tr, VDD
≥
15
μ
s/V.
3. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic 0.1
μ
F) should be placed close to the supply terminals.
VI = 0 V to VDD
10
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