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PDF MAX6333 Data sheet ( Hoja de datos )
| Número de pieza | MAX6333 | |
| Descripción | 3-Pin / Ultra-Low-Voltage / Low-Power P Reset Circuits | |
| Fabricantes | Maxim Integrated | |
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Hay una vista previa y un enlace de descarga de MAX6333 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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19-1411; Rev 0; 12/98
3-Pin, Ultra-Low-Voltage, Low-Power
µP Reset Circuits
General Description
The MAX6332/MAX6333/MAX6334 microprocessor (µP)
supervisory circuits monitor the power supplies in 1.8V
to 3.3V µP and digital systems. They increase circuit
reliability and reduce cost by eliminating external com-
ponents and adjustments.
These devices perform a single function: they assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold, keeping it asserted for a pre-
set timeout period after VCC has risen above the reset
threshold. The only difference among the three devices
is their output. The MAX6333 (push/pull) and MAX6334
(open-drain) have an active-low RESET output, while
the MAX6332 (push/pull) has an active-high RESET out-
put. The MAX6332/MAX6333 are guaranteed to be in
the correct state for VCC down to 0.7V. The MAX6334 is
guaranteed to be in the correct state for VCC down to
1.0V.
The reset comparator in these ICs is designed to ignore
fast transients on VCC. Reset thresholds are factory-
trimmable between 1.6V and 2.5V, in approximately
100mV increments. There are 15 standard versions
available (2,500 piece minimum-order quantity); con-
tact the factory for availability of nonstandard versions
(10,000 piece minimum-order quantity). For space-criti-
cal applications, the MAX6332/MAX6333/MAX6334
come packaged in a 3-pin SOT23.
Applications
Pentium II™ Computers
Computers
Controllers
Intelligent Instruments
Critical µP/µC Power Monitoring
Portable/Battery-Powered Equipment
Automotive
Typical Operating Circuit and Pin Configuration appear
at end of data sheet.
Selector Guide appears at end of data sheet.
Pentium II is a trademark of Intel Corp.
Features
o Ultra-Low 0.7V Operating Supply Voltage
o Low 3.3µA Supply Current
o Precision Monitoring of 1.8V and 2.5V Power-
Supply Voltages
o Reset Thresholds Available from 1.6V to 2.5V,
in Approximately 100mV Increments
o Fully Specified over Temperature
o Three Power-On Reset Pulse Widths Available
(1ms min, 20ms min, 100ms min)
o Low Cost
o Three Available Output Structures: Push/Pull
RESET, Push/Pull RESET, Open-Drain RESET
o Guaranteed RESET/RESET Valid to VCC = 0.7V
(MAX6332/MAX6333)
o Power-Supply Transient Immunity
o No External Components
o 3-Pin SOT23 Package
o Pin-Compatible with MAX809/MAX810 and
MAX6326/MAX6327/MAX6328
Ordering Information
PART*
MAX6332UR__D_-T
MAX6333UR__D_-T
MAX6334UR__D_-T
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
3 SOT23-3
3 SOT23-3
3 SOT23-3
* These devices are available in factory-set VCC reset thresh-
olds from 1.6V to 2.5V, in approximately 0.1V increments.
Choose the desired reset threshold suffix from Table 1 and
insert it in the blanks following “UR” in the part number.
Factory-programmed reset timeout periods are also available.
Insert the number corresponding to the desired nominal reset
timeout period (1 = 1ms min, 2 = 20ms min, 3 = 100ms min) in
the blank following “D” in the part number. There are 15 stan-
dard versions with a required order increment of 2500 pieces.
Sample stock is generally held on the standard versions only
(see Selector Guide). Contact the factory for availability of non-
standard versions (required order increment is 10,000 pieces).
All devices available in tape-and-reel only.
________________________________________________________________ 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 1-800-835-8769.
1 page  
3-Pin, Ultra-Low-Voltage, Low-Power
µP Reset Circuits
Pin Configuration
Typical Operating Circuit
TOP VIEW
GND 1
MAX6332
MAX6333
MAX6334
3 VCC
RESET (RESET) 2
( ) ARE FOR MAX6332
SOT23-3
VCC
VCC
MAX6332
MAX6333
RESET
(RESET)
GND
( ) ARE FOR MAX6332
VCC
µP
RESET
INPUT
GND
PART
OUTPUT STAGE
MAX6332UR23D3-T
MAX6332UR22D3-T
MAX6332UR20D3-T
MAX6332UR18D3-T
MAX6332UR16D3-T
MAX6333UR23D3-T
MAX6333UR22D3-T
MAX6333UR20D3-T
MAX6333UR18D3-T
MAX6333UR16D3-T
MAX6334UR23D3-T
MAX6334UR22D3-T
MAX6334UR20D3-T
MAX6334UR18D3-T
MAX6334UR16D3-T
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Push/Pull RESET
Open-Drain RESET
Open-Drain RESET
Open-Drain RESET
Open-Drain RESET
Open-Drain RESET
* Sample stock is generally held on all standard versions.
Selector Guide (standard versions*)
NOMINAL VTH (V)
2.30
2.20
2.00
1.80
1.60
2.30
2.20
2.00
1.80
1.60
2.30
2.20
2.00
1.80
1.60
MINIMUM RESET
TIMEOUT (ms)
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
SOT TOP MARK
FZDM
FZCN
FZDL
FZCM
FZCL
FZCS
FZCR
FZCQ
FZCP
FZCO
FZDO
FZCV
FZDN
FZCU
FZCT
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MAX6333.PDF ] | |
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