19-1145; Rev 1; 8/98
5 -P in , Mu lt ip le -In p u t ,
P ro g ra m m a b le Re s e t ICs
05–MAX613
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX6305–MAX6313 CMOS microprocessor (µP)
supervisory circuits are designed to monitor more than
one power supply. Ideal for monitoring both 5V and
3.3V in p e rs ona l c omp ute r s ys te ms , the s e d e vic e s
assert a system reset if any of the monitored supplies
falls outside the programmed threshold. Low supply
c urre nt (15µA) a nd a s ma ll p a c ka g e s uit the m for
porta ble a pp lic a tions. The MAX6305–MAX6313 a re
s p e c ific a lly d e s ig ne d to ig nore fa s t tra ns ie nts on
any monitored supply.
♦ Small 5-Pin SOT23 Package
♦ Precision Factory-Set V
Reset Thresholds;
CC
Available in 0.1V Increments from 2.5V to 5V
♦ Immune to Short V Transients
CC
♦ Guaranteed RESET Valid to V
= 1V
CC
♦ Guaranteed Over Temperature
♦ 8µA Supply Current
♦ Factory-Set Reset Timeout Delay from
1ms (min) to 1120ms (min)
These devices are available in a SOT23-5 package,
have factory-programmed reset thresholds from 2.5V to
5.0V (in 100mV increments), and feature four power-on
reset timeout periods.
♦ No External Components
♦ Manual Reset Input
♦ Under/Overvoltage Supply Monitoring
Ap p lic a t io n s
Ord e rin g In fo rm a t io n
†
Portable Computers
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
5 SOT23-5
MAX6305UK00D_-T
MAX6306UK_ _D_-T
MAX6307UK_ _D_-T
Computers
5 SOT23-5
Controllers
5 SOT23-5
Intelligent Instruments
† The MAX6306/MAX6307/MAX6309/MAX6310/MAX6312/
Portable/Battery-Powered Equipment
Multivoltage Systems: 3V/5V, 5V/12V, 5V/24V
Embedded Control Systems
MAX6313 are available with factory-set V reset thresholds from
CC
2.5V to 5V, in 0.1V increments. Insert the desired nominal reset
threshold (from Table 1) into the blanks following the letters UK.
All parts also offer factory-programmed reset timeout periods.
Insert the number corresponding to the desired nominal timeout
period index following the “D” in the part number (D1 = 1ms min,
D2 = 20ms min, D3 = 140ms min, and D4 = 1120ms min). Contact
factory for availability and minimum order sizes.
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Ordering Information continued at end of data sheet.
_______________________________________________________________S e le c t o r Ta b le
FACTORY-
SET RESET
THRESHOLD
OPEN-DRAIN
RESET
OUTPUT
PUSH/PULL
RESET
OUTPUT
PUSH/PULL
RESET
OUTPUT
ADDITIONAL
UNDERVOLTAGE OVERVOLTAGE
RESET INPUTS
NEGATIVE/
MANUAL-
RESET
INPUT
PART
RESET INPUT
ON V
CC
✔
✔
MAX6305
MAX6306
MAX6307
MAX6308
MAX6309
MAX6310
MAX6311
MAX6312
MAX6313
—
—
—
✔
✔
✔
—
—
—
—
—
—
✔
—
2
1
1
2
1
1
2
1
1
—
—
✔
—
✔
✔
✔
✔
—
—
✔
—
—
—
—
—
—
—
✔
✔
—
—
✔
—
—
✔
—
—
—
—
✔
✔
—
—
✔
✔
✔
—
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.