MAX709 Maxim, MAX709 Datasheet
MAX709
Manufacturer Part Number
MAX709
Description
Power-Supply Monitor with Reset
Manufacturer
Maxim
Datasheet
1.MAX709.pdf
(8 pages)
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19-0136; Rev. 1; 6/94
The MAX709 provides a system reset during power-up,
power-down, and brownout conditions. When V
below the reset threshold, RESET goes low and holds
the µP in reset for 140ms min after V
threshold.
The RESET output is guaranteed to be in the correct
state with V
excellent circuit reliability and low cost by eliminating
external components and adjustments when used with
+5V, +3.3V, or +3V powered systems. The MAX709 is
available 8-pin DIP, µMAX, and SO packages.
__________Typical Operating Circuit
Call toll free 1-800-998-8800 for free samples or literature.
_______________General Description
_______________________Applications
Minimum Component Count,
Low-Cost Processor Systems
CC
MAX709
GND
V
down to 1V. The MAX709 provides
CC
________________________________________________________________ Maxim Integrated Products
RESET
RESET
Power-Supply Monitor with Reset
GND
V
CC
CC
P
rises above the
CC
falls
* Dice are specified at T
Note: This part offers a choice of five different reset threshold
__________________Pin Configuration
______________Ordering Information
MAX709_CPA
MAX709_CUA
MAX709_CSA
MAX709_C/D
MAX709_EPA
MAX709_EUA
MAX709_ESA
___________________________Features
+5V, +3.3V, and +3V Versions
No External Components
Low Cost
Precise Power-Down Reset Threshold
140ms Min Power-On Reset Delay
Immune to Short Negative V
8-Pin DIP, µMAX, and SO Packages
Low Supply Current: 35µA - MAX709R/S/T
TOP VIEW
PART
voltages. Select the letter corresponding to the desired
nominal reset threshold voltage, and insert it into the
blank to complete the part number.
SUFFIX
M
S
R
L
T
GND
N.C.
N.C.
V
CC
RESET THRESHOLD
1
2
3
4
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
A
TEMP. RANGE
= +25 °C , DC parameters only.
DIP/SO/ MAX
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
MAX709
65µA - MAX709L/M
CC
Transients
VOLTAGE (V)
8
7
6
5
PIN-PACKAGE
8 Plastic DIP
8 µMAX
8 SO
Dice
8 Plastic DIP
8 µMAX
8 SO
4.65
4.40
3.08
2.93
2.63
N.C.
RESET
N.C.
N.C.
1
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