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IMP1832 Scheda tecnica(PDF) 3 Page - A1 PROs co., Ltd.

Il numero della parte IMP1832
Spiegazioni elettronici  3..3V 關P Power Supplly Moniittor and Ressett Ciircuiitt
PDF  7 Pages
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Produttore elettronici  A1PROS [A1 PROs co., Ltd.]
Homepage  http://www.a1pros.co.kr
Logo A1PROS - A1 PROs co., Ltd.

IMP1832 Scheda tecnica(HTML) 3 Page - A1 PROs co., Ltd.

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©
1999 IMP, Inc.
408-432-9100/www.impweb.com
3
IMP1
IMP1832
832
Absolute Maximum Ratings
Electrical Characteristics
Voltage on VCC . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to 7V
Voltage on ST, TD . . . . . . . . . . . . . . . . . . . . . –0.5V to VCC + 0.5V
Voltage on PBRST, RESET, RESET . . . . . . . . –0.5V to VCC + 0.5V
Operating Temperature Range . . . . . . . . . . . –40
°C to 85°C
Soldering Temperature . . . . . . . . . . . . . . . . . . 260
°C for 10 seconds
Storage Temperature . . . . . . . . . . . . . . . . . . . –55
°C to 125°C
Voltages measured with respect to ground.
These are stress ratings only and functional operation is not implied.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)VCC
1.0
5.5
V
ST and PBRST Input High Level
VIH
VCC ≥ 2.7V
2
VCC + 0.3V
V
ST and PBRST Input High Level
VIH
VCC < 2.7V
VCC - 0.4V
V
ST and PBRST Input Low Level
VIL
– 0.3
0.5
V
VCC Trip Point (TOL = GND)
VCCTP
2.80
2.88
2.97
V
VCC Trip Point (TOL = VCC)VCCTP
2.47
2.55
2.64
V
Watchdog Time-Out Period
tTD
TD = GND
62.5
150
250
ms
Watchdog Time-Out Period
tTD
TD = VCC
500
1200
2000
ms
Watchdog Time-Out Period
tTD
TD floating
250
610
1000
ms
Output Voltage
VOH
I = –500
µA, V
CC < 2.7V
VCC - 0.3V
VCC - 0.1V
V
Output Current
IOH
Output = 2.4V, VCC ≥ 2.7V
350
µA
Output Current
IOL
Output = 0.4V, VCC ≥ 2.7V
10
mA
Input Leakage
IIL
–1.0
1.0
µA
RESET Low Level
VOL
0.4
V
Internal Pull-Up Resistor
PBRST pin
40
k
Ω
Operating Current
ICC1
Outputs open. VCC ≤ 3.6V
20
µA
and all inputs at VCC or GND
Input Capacitance
CIN
5pF
Output Capacitance
COUT
7pF
PBRST Manual Reset
tPB
PBRST = VIL
20
ms
Minimum Low Time
Reset Active Time
tRST
250
610
1000
ms
ST Pulse Width
tST
Must not exceed tRD minimum.
20
ns
Watchdog cannot be disabled.
VCC Fail Detect to
tRPD
Pulses < 2
µs at V
CCTP
58
µs
RESET or RESET
minimum will not cause reset.
VCC Slew Rate
tF
20
µs
PBRST Stable LOW to
tPDLY
20
ms
RESET and RESET Active
VCC Detect to RESET or
tRPU
trise = 5µs
250
610
1000
ms
RESET Inactive
VCC Slew Rate
tR
0ns
Unless otherwise stated, 1.2V
≤ VCC ≤ 5.5V and over the operating temperature range of –40°C to +85°C . All voltages are referenced
to ground.



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