MAX63_ _UK _ _D_-T.........................................0°C to +70°C
MAX63_ _EUK _ _D_-T ...................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Soldering Temperature (reflow)
Lead (Pb) - free packages............................................+260°C
Packages containing lead (Pb).....................................+240°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
V
CC
= +2.5V to +5.5V for the MAX6305/MAX6308/MAX6311, V
CC
= (V
TH
+ 2.5%) to +5.5V for the MAX6306/MAX6307/MAX6309/
MAX6310/MAX6312/MAX6313; T
A
= -40°C to +85°C; unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
V
CC
Range
Supply Current
I
CC
SYMBOL
V
CC
= 5.5V
MAX6306/MAX6307/
MAX6309/MAX6310/
MAX6312/MAX6313
V
TH
MAX6306E/MAX6307/
MAX6309E/MAX6310E/
MAX6312E/MAX6313E
Reset Threshold
Reset Threshold
V
TH
/°C
V
TH
HYST
D1
Reset Timeout Period
t
RP
D2
D3
D4
V
CC
> 4.25V, I
SINK
= 3.2mA
V
OL
RESET
Output Voltage
V
OH
MAX6305–MAX6310
V
CC
> 2.5V, I
SINK
= 1.2mA
V
CC
> 1.2V, I
SINK
= 500µA
V
CC
> 1.0V, I
SINK
= 50µA
V
CC
> 4.25V,
MAX6308/MAX6309/ I
SOURCE
= 800µA
MAX6310
V
CC
> 2.5V,
I
SOURCE
= 500µA
V
OL
RESET Output Voltage
V
OH
V
CC
> 4.25V, I
SINK
= 3.2mA
V
CC
> 2.5V, I
SINK
= 1.2mA
MAX6311/MAX6312/ V
CC
> 1.8V,
MAX6313
I
SOURCE
= 150µA
V
CC
> 1.0V,
I
SOURCE
= 10µA
0.8 x V
CC
0.8 x V
CC
V
CC
- 1.5
V
0.8 x V
CC
0.4
0.3
V
1.0
20
140
1120
T
A
= +25°C
T
A
= 0°C to +70°C
V
TH
-
1.5%
V
TH
-
2.5%
V
TH
-
2.5%
CONDITIONS
T
A
= -40°C to +85°C (Note 2)
MIN
1.0
8
V
TH
V
TH
TYP
MAX
5.5
16
V
TH
+
1.5%
V
TH
+
2.5%
V
TH
+
2.5%
ppm/°C
mV
2.0
40
280
2240
0.4
0.3
0.3
0.3
V
ms
V
UNITS
V
µA
Reset Threshold
(Note 3)
T
A
= -40°C to +85°C
V
TH
40
2 x V
TH
1.4
28
200
1570
2
5-Pin, Multiple-Input,
Programmable Reset ICs
ELECTRICAL CHARACTERISTICS (continued)
V
CC
= +2.5V to +5.5V for the MAX6305/MAX6308/MAX6311, V
CC
= (V
TH
+ 2.5%) to +5.5V for the MAX6306/MAX6307/MAX6309/
MAX6310/MAX6312/MAX6313; T
A
= -40°C to +85°C; unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
V
IL
MR
Input
V
IH
V
IL
V
IH
MR
Minimum Input
Pulse Width
MR
Glitch Rejection
MR
to Reset Delay
MR
Pullup Resistance
ADJUSTABLE RESET COMPARATOR INPUTS
RST IN_/OVRST_IN
Input Threshold
RST IN_/OVRST_IN
Input Current
RST IN_/OVRST_IN
Hysteresis
T
A
= +25°C
V
RSTH
MAX6305–MAX6313, T
A
= 0°C to +70°C
MAX6305E–MAX6313E, T
A
= -40°C to +85°C
I
RST IN_
0V < V
RST IN
< V
CC
- 0.3V (Note 4)
1.21
1.20
1.20
-25
2.5
1.23
1.25
1.26
1.26
+25
nA
mV
V
32
CONDITIONS
MIN
TYP
MAX
0.8
2.4
0.3 x V
CC
0.7 x V
CC
1
1.5
0.1
500
63.5
100
µs
µs
nsV
kΩ
V
UNITS
MAX6305–MAX6313
MANUAL-RESET INPUT (MAX6306/MAX6309/MAX6312)
V
TH
> 4.0V
V
TH
< 4.0V
T
A
= 0°C to +70°C
T
A
= -40°C to +85°C
Note 1:
Overtemperature limits are guaranteed by design, not production tested.
Note 2:
The MAX6305/MAX6308/MAX6311 switch from undervoltage reset to normal operation between 1.5V < V
CC
< 2.5V.
Note 3:
The MAX6306/MAX6307/MAX6309/MAX6310/MAX6312/MAX6313 monitor V
CC
through an internal factory-trimmed voltage
divider, which programs the nominal reset threshold. Factory-trimmed reset thresholds are available in approximately
射频识别(Radio Frequency Identification，RFID)技术是一种利用无线射频通信实现的非接触式自动识别技术，与目前广泛采用的条形码技术相比，RFID具有容量大、识别距离远、穿透能力强、抗污性强等特点。RFID技术已经发展得比较成熟并获得了大规模商用，但超高频RFID技术相对滞后。本文分析了射频芯片nRF9E5的功能特性，并将其用于RFID系统中，设计了一套有源超高频(...[详细]
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