CS8151C View Datasheet(PDF) - Cherry semiconductor
Part Name
Description
Manufacturer
CS8151C Datasheet PDF : 8 Pages
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Electrical Characteristics: TA = 0¡C to 70¡C, 0¡C ² TJ ² 125¡C, 6V ² VIN ² 26V, IOUT = 100µA to 100mA,
C2 = 47µF (ESR < 8½), CDelay = 0.1µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s Watchdog Input
Threshold
HIGH
LOW
Hysteresis
Input Current
Pulse Width
0 < WDI < 6V
50% WDI falling edge to
50% WDI rising edge and
50% WDI rising edge to 50%
WDI falling edge (see Figure 1)
1.4
0.8
1.3
25
100
-10
0
5
2.0
V
V
mV
+10
µA
µs
s Wake Up Output
Wake Up Period
Wake Up Duty Cycle nominal
RESET HIGH to Wake Up
Rising Delay Time
Wake Up Response
to Watchdog Input
Wake Up Response
to RESET
Output
LOW
HIGH
Current Limit
see Figure 1a
see Figure 1c
50% RESET rising edge to
50% Wake Up edge
(see Figure 1)
50% WDI falling edge to
50% Wake Up falling edge
50% RESET falling edge to
50% Wake Up falling edge
VOUT = 5V®4.5V
IOUT = 25µA(sinking)
IOUT = 25µA(sourcing)
Wake Up = 5V
Wake Up = 0V
30
40
40
50
15
20
2
2
50
ms
60
%
25
ms
10
µs
10
µs
0.2
3.8
4.2
0.025
1.00
.05
0.8
V
5.1
V
7.00
mA
3.50
mA
Package Lead #
8 L PDIP
1
2
3
4
5
7
8
Lead Symbol
VIN
WDI
Wake Up
RESET
Delay
Gnd
VOUT
Package Lead Description
Function
Supply voltage to the IC.
CMOS/TTL compatible input lead. The watchdog function monitors
the falling edge of the incoming signal.
CMOS/TTL compatible output consisting of a continuously generated
signal used to Wake Up the microprocessor from sleep mode.
CMOS/TTL compatible output lead RESET goes low whenever VOUT
drops by more than 6% from nominal, or during the absence of a cor-
rect watchdog signal.
Input lead from timing capacitor for RESET and Wake Up signal.
Ground Connection
Regulated output voltage 5V ± 2%.
3
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