MAX707, MAX708
mP Supervisory Circuits
The MAX707/708 are cost−effective system supervisor circuits
designed to monitor VCC in digital systems and provide a reset signal
to the host processor when necessary. No external components are
required.
The reset output is driven active within 20 msec of VCC falling
through the reset voltage threshold. Reset is maintained with 200 mS
of delay time after VCC rise above the reset threshold. The
MAX707/708 have a low quiescent current of 12 mA at VCC = 3.3 V,
an active−high RESET and active−low RESET with a push−pull
output. The output is guaranteed valid down to VCC = 1.0 V. The
MAX707/708 have a Manual Reset MR input and a +1.25 V threshold
detector for power−fail input PFI. These devices are available in a
Micro8 and SOIC−8 package.
http://onsemi.com
MARKING
DIAGRAMS
8
xxx
AYW
G
Micro8t
CUA SUFFIX
CASE 846A
8
1
1
xxx
A
Y
W
G
= Specific Device Code
= Assembly Location
= Year
= Week
= Pb−Free Package
Features
• Precision Supply−Voltage Monitor
MAX707: 4.63 V Reset Threshold Voltage
MAX708: Standard Reset Threshold Voltages (Typical):
4.38 V, 3.08 V, 2.93 V, 2.63 V
8
1
xxxxx
ALYWG
G
SOIC−8
ESA SUFFIX
CASE 751
• Reset Threshold Available from 1.6 V to 4.9 V with 100 mV
Increments (Factory Option)
• 200 mS (Typ) Reset Timeout Delay
• 12 mA (VCC = 3.3 V) Quiescent Current
8
1
xxxxx = Specific Device Code
AL
Y
W
G
= Assembly Lot Code
= Year
= Week
• Active_High and Active_Low Reset Output
• Guaranteed RESET_L and RESET Output Valid to VCC = 1.0 V
• Voltage Monitor for Power−Fail or Low−Battery Warning
• 8 Pin SOIC or Micro8 Package
= Pb−Free Package
(Note: Microdot may be in either location)
• Pb−Free Packages are Available
PIN CONFIGURATION
Micro8
Applications
• Computers
RESET
RESET
MR
NC
1
2
3
4
8
7
6
5
• Embedded System
PFO
PFI
• Battery Powered Equipment
• Critical mP Power Supply Monitor
V
GND
CC
(Top View)
SOIC−8
MR
RESET
RESET
NC
1
2
3
4
8
7
6
5
V
CC
GND
PFI
PFO
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
©
Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
August, 2005 − Rev. 4
MAX707/D