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參數(shù)資料
| 型號： | AAT3519 |
| 廠商： | Advanced Analog Technology,lnc. |
| 元件分類： | 復(fù)位半導(dǎo)體 |
| 英文描述： | Micropower uP Reset with Watchdog Timer |
| 中文描述： | 微功耗 μP 復(fù)位和看門狗定時器 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 121K |
| 代理商： | AAT3519 |
AAT3510/1/2/3/4/5/6/7/8/9
Micropower μP Reset with Watchdog Timer
4
3510.2006.03.1.7
Electrical Characteristics
V
CC
= 2.5V to 5.5V, T
A
= -40°C to +85°C
1
, unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol Description
V
CC
Operating Voltage Range
Conditions
T
A
= -40°C to +85°C
AAT3510/1/2/3/4/7/8:
MR & WDI Unconnected V
CC
= 5.5V
AAT3515/6/9:
MR Unconnected
T
A
= 25°C
T
A
= -40 to +85°C
Min
1
Typ
Max
5.5
15
18
15
18
Units
V
V
CC
= 3.6V
5
6
I
CC
Supply Current
V
CC
= 3.6V
V
CC
= 5.5V
μA
V
TH
Reset Threshold Voltage
V
THNOM
-1.5% V
TH
V
THNOM
-2.5% V
TH
V
THNOM
+1.5%
V
THNOM
+2.5%
V
T
C
Reference Voltage
Temperature Coefficient
-40°C < T
A
< +85°C
±40
ppm/°C
AAT351xIGV-xx-A-x-T1
AAT351xIGV-xx-B-x-T1
AAT351xIGV-xx-C-x-T1
V
CC
Falling at 1mV/μs
1
20
140
1.4
28
200
40
2
40
280
t
RP
Reset Active Timeout
Period
ms
T
RD
V
CC
to RESET Delay
μs
Push/Pull RESET Output (AAT3510, 3512, 3513, 3514, 3515, 3516, 3518, 3519)
V
CC
≥
1.0V, I
SINK
= 50μA
V
CC
≥
1.2V, I
SINK
= 100μA
V
CC
≥
2.7V, I
SINK
= 1.2mA
V
CC
≥
4.5V, I
SINK
= 3.2mA
0.3
0.3
0.3
0.4
V
OL
RESET Low Output Voltage
V
V
OH
RESET High Output VoltageV
CC
≥
2.7V, I
SOURCE
= 500μA
0.8 x V
CC
V
CC
- 1.5
V
V
CC
≥
4.5V, I
SOURCE
= 800μA
V
CC
≥
2.7V, I
SINK
= 1.2mA
V
CC
≥
4.5V, I
SINK
= 3.2mA
V
CC
≥
1.8V, I
SOURCE
= 150μA
0.3
0.4
RESET Low Output Voltage
V
OH
0.8 x V
CC
0.8 x V
CC
V
CC
- 1.5
V
RESET High Output Voltage V
CC
≥
2.7V, I
SOURCE
= 500μA
V
CC
≥
4.5V, I
SOURCE
= 800μA
Bidirectional RESET Output (AAT3511, 3514, 3516)
Transition Flip-Flop Setup
Time
2
t
S
400
ns
V
CC
= 3.0V, C
L
= 120pF
V
CC
= 5.0V, C
L
= 200pF
V
CC
= 3.0V, C
L
= 250pF
V
CC
= 5.0V, C
L
= 400pF
333
333
666
666
t
R
RESET Output Rise Time
3
ns
Active Pull-Up Enable
Threshold
RESETActive Pull-Up
Current
RESET Pull-Up Resistance
V
CC
= 5.0V
0.4
0.65
V
V
PTH
V
CC
= 5.0V
20
mA
4.2
4.7
5.2
k
1. Over-temperature limits are guaranteed by design, not production tested.
2. This is the minimum time RESET must be held low by an external pull-down source to set the active pull-up flip-flop.
3. Measured from RESET V
OL
to (0.8 x V
CC
), open circuit output.
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