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DS1632S/TR Datasheet

  • DS1632S/TR

  • Power Management Circuit,

  • 6頁(yè)

  • DALLAS   DALLAS

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DS1632
PC Power-Fail and Reset Controller
www.maxim-ic.com
FEATURES
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Power-fail detector for personal computers
and workstations
Connects directly to popular personal
computer chip sets
On chip 32.768 kHz oscillator for real time
clock
Provides battery backup power to clock chip
Pushbutton reset input
Accurate 5% or 10% +5-volt power supply
monitoring
Complementary outputs for reset, power-fail,
and low battery
Provides for reset pulse width of either 95 ms
or 190 ms
Eliminates the need for discrete components
Low-power CMOS circuitry
16-pin DIP or SOIC surface mount package
0擄C to 70擄C operation
PIN ASSIGNMENT
PBRST
X1
X2
V
BAT
LB
LB
TOL
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
PF
PF
V
CCO
RST
RST
RD
OSCOUT
16-Pin DIP (300-mil)
See Mech. Drawings Section
PBRST
X1
X2
V
BAT
LB
LB
TOL
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
PF
PF
V
CCO
RST
RST
RD
OSCOUT
16-Pin SOIC (300-mil)
See Mech. Drawings Section
PIN DESCRIPTION
PBRST
DESCRIPTION
X1, X2
V
BAT
LB,
LB
RST,
RST
RD
TOL
GND
OSCOUT
V
CCO
PF,
PF
V
CC
- Pushbutton Reset Input
- Crystal Inputs
- Battery Input
- Low Battery Outputs
- Reset Outputs
- Reset Duration
- Selects 5% Or 10% Detection
- Ground
- Oscillator Out
- Switched Power Out
- Power-Fail Outputs
- +5-Volt Power In
The DS1632 PC Power-Fail and Reset Controller is designed to do various functions involving battery
backup and other functions typically accomplished with discrete components. The DS1632 provides a
32.768 kHz battery-backed crystal oscillator and switched V
CC
/V
BAT
power via V
CCO
for the real time
clock function located in accompanying chip sets. In addition, the DS1632 provides for reset on both
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060303

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