MAX708SCSA ,+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits_1t1o11rtrbL2f15., [VI IJXI/I/l
+3V Voltage Monitoring,
Low-Cost, MP Supervisory Circuits
MAX708SCSA ,+3V Voltage Monitoring, Low-Cost, レP Supervisory CircuitsELECTRICAL CHARACTERISTICS
(MAX/CLP/R: Vcc = 2.70V10 5.5V, MAX70_S: VCC = 3.00V to 5EV, MAX10_T: ..
MAX708SCSA ,+3V Voltage Monitoring, Low-Cost, レP Supervisory CircuitsELECTRICAL CHARACTERISTICS
(MAX/CLP/R: Vcc = 2.70V10 5.5V, MAX70_S: VCC = 3.00V to 5EV, MAX10_T: ..
MAX708SCSA ,+3V Voltage Monitoring, Low-Cost, レP Supervisory CircuitsFeatures
The MAX706P/R/S/T and MAX708R/S/T microprocessor t pMAX Package: Smallest 8-Pin SO
( ..
MAX708SCSA ,+3V Voltage Monitoring, Low-Cost, レP Supervisory CircuitsFeatures
The MAX706P/R/S/T and MAX708R/S/T microprocessor t pMAX Package: Smallest 8-Pin SO
( ..
MAX708S-CSA ,+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits_1t1o11rtrbL2f15., [VI IJXI/I/l
+3V Voltage Monitoring,
Low-Cost, MP Supervisory Circuits
MB47358 ,DUAL OPERATIONAL AMPLIFIERFUJITSU SEMICONDUCTORDS04-11104-3EDATA SHEETLINEAR ICDUAL OPERATIONAL AMPLIFIERMB47358DUAL OPERATIO ..
MB47393 ,DUAL COMPARATORFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB47393P ,Dual comparatorFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB47393P ,Dual comparatorFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB47393PF ,Dual comparatorFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB4752A ,SUBSCRIBER LINE INTERFACE IC" mm;
gr T$544-A874
'j?itl,'l,lllill,ililill MB4752A April 1987
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MAX706PCPA-MAX706PCSA-MAX706PCUA-MAX706PEPA-MAX706PESA-MAX706RCPA-MAX706RCSA-MAX706RCUA-MAX706REPA-MAX706RESA-MAX706SCPA-MAX706SCSA-MAX706SEPA-MAX706SESA-MAX706SMJA-MAX706TCPA-MAX706TCSA-MAX706TCUA-MAX706TEPA-MAX706TESA-MAX706TMJA-MAX708RCPA-MAX708RCSA-
+3V Voltage Monitoring, Low-Cost, レP Supervisory Circuits
19-0099, Rev 2, 9/95
AMI sdl'ftgtrfl2AlAl
+3V Voltage Monitoring,
Low-Cast, “P Supervisory Circuits
General Description
the MAX706P/R/S/T and MAX708R/S/T microprocessor
(pP) supervisory circuits reduce the complexity and num-
ber of components required to monitor +3V power-supply
levels in +3V to +5V pP systems. These devices signifi-
cantly improve system reliability and accuracy compared
to separate Cs or discrete components.
The MAX706P/R/S/T supervisory circuits provide the fol-
lowing four functions:
l) A reset output during power-up, power-down, and
brownout conditions.
2) An independent watchdog output that goes low if the
watchdog input has not been toggled within 1.6eec.
3) A 1.25V threshold detector tor power-fail warning, low-
battery detection, or for monitoring a power supply
other than the main supply.
4) An active-low manual-reset input.
The only difference between the MAX706R, MAX7068,
and MAX706T is the reset-threshold voltage levels, which
are 2.63V, 2.93V, and 3.08V, respectively. All have active-
low reset output signals. The MAX706P is identical to the
MAX706R, except its reset output signal is active-high.
The MAX708R/S/T provide the same functions as the
MAX706R/S/T, except they do not have a watchdog timer.
Instead, they provide both RESET and RESET outputs. As
with the MAX736, devices with R, S, and T suffixes have
reset thresholds of 2.63V, 2.93V and 3.08V. respectively.
All seven devices are offered in 8-pin SO, DIP, and pMAX
packages.
applications
Battery-Power" Equipment
Portable Instruments
Computers
Controllers
Intell gent Instruments
Critical " Power Mor‘toring
Typical Operating Circuits
UNREGUL'KTEDUC
t OC-OO
MAXIM CONVERTER
MAX539 3W3 3V
_7 MMM
MAX706H/Si T
‘8 V - v“ T VIC l
RESET fiTSET
- pH My - ti'C'JNF P
m - NM [l
" - T - tNTERRUPT
' MR (3ND P O
. F PUSHBUTT 0N T
4 l SWITCH Typical Operating Crrcuits continued
T T _ at end of data sheet
F ea tures
' pMAX Package: Smallest 8-Pin SO
. Precision Supply-Voltage Monitor
2.63V (MAX706P/R, MAX708R)
2.93V (MAX706S, MAX708S)
3.08V (MAX706T, MAX708T)
. 200ms Reset Time Delay
t Debounced TTL/CMOS-Compatible
Manual-Reset Input
' 100PA Quiescent Current
t Watchdog Timer(MAX706P/R/S/T only):
1.6sec Timeout
. Reset Output Signal:
Active-High Only (MAX706P)
Active-Low Only (MAX706R/S/T)
Active-High and Active-Low (MAX708RIS/T)
' Voltage Monitor for Power-Fail or Low-Battery
Warning
. 8-Pin Surface-Mount Package
. Guaranteed RESET Assertion to Vcc = IV
Ordering Information
.lL/S/HQOLXVW ‘L/S/H/dQOlXVl/H
- PART TEMP. RANGE PIN-PACKAGE
MAX706PCPA O‘C t0 +70'"C, 8 Pleistic DIP
MAX lOBPCSA (YI) t0 i/O"C 8 SO
MAX706PCUA Ot' to +70"C b" PMAX
MAX706PEPA M0'C to i85”C 8 Plastic DIP
MAX7OBPESA -40"C, to +85'C, 8 SC)
MAX/06PMJA -55'C to +125“C fl, CERDIT“
Ordering Information continued at end of data sheet.
. Contact factory (Ctr ava/iabi/iiy and pmoessma to MlL-STr)-fri3C)
tmreiinfiiruritions
TOPVIEW
NTR 1 8l woo
- MAXIM
vi. t2 MAX706P 7t RESET
Gtlo T '6 t Win
an s" T' PH)
DIPISO
MR 1 MAXIM L
'/:iv I, MA0)6fr'S/l ,t VtSt‘
(mu 3 6 W'Jt
PH t 4 '5‘ pro
DIP/SO
Pin Configurators continued at end 0/ data show
[MAXIM
Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
MAX706P/R/S/T, MAX7OBB/S/T
+3V Voltage Monitoring,
Low-Cost, pp Supervisory Circuits
ABSOLUTE MAXIMUM RATINGS
Termmal Voltage (wth respect to GND) pMAX (derate 4 ImW/"C above +70''C) T _ 330mW
VCC. ___. _ _ .............. .O.3V10 6, 0V CERDIP (derate 8 OOmW/"C above +70“C) . 640mW
All Other Inputs (Note 1) ....... . ,, -.0 3V toO/cc + 0 3V) Operating Temperature Ranges
InoutCurrem MAX70, C 7 VVqq - ,., .. TVrq T ,. Irc to +70‘C
VCC __r_ ___ 'F, Trr' . . ... . _ _.. TtTT _ 20rvA MAXYO f, - _ . Fqq - - ........ . ..... 40t' IO +85‘C
GND. ____rr__ .................... .. .. _ ,,,,,,,,,,, 20mA MAX7% M_ - .. _ TVV _-- ..... ,. 63010 +1280
Output Current (all outputs)...,. ___ ___ _ . . - VVVVV 20mA Storage Temperature Range TTVV .. _ .. A680 Io +1600
Cormnuous Power Dissipation Lead Temperature(soldering, 1088(3)” _ ,. ..+300‘ C
Plastlc DIP (derate 9.09mW/“C above +70°C). ......... 727mW
SO (aerate 5 88mWf"C above +70"C), ............ 471mW
Note 1: The mput voltage hmus on PFI, WDI and W can be exceeded " the Input current 15 less than I0mA
Stresses beyond Ihosc hsled under "Absolule Maximum Raiings' may cause pcrmanen! damage to mo dewce These am slmss Iahngs only and luncl/an/
opcralon 0/ mo dewce a! mass or any olher condmons beyond (hose mmmled m mo opuranonal secnons of me spem/Icamns IS n17! 1mp/1ud FVpuSu/U Io
anso/u/e mammum rating commons lor cxlended periods may allow dewce reliability
ELECTRICAL CHARACTERISTICS
(MAX70_ P/R: Vcc _ , 70V to 5. bv, MAX70_ S: Vcc--- - 3. OOVI to 5. 5V, MAX7O T: Vcc--- i 3 15V1055V TA - TMIN 1o TMAX, nr/ess
otherwise noted )
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
C) ti v lt R v MAX70_C 1,0 5 5 v
era In C) a e an e _
p g g g cc MAX7(LE/M 1 p 5.5
MAX7067C 90 200
MAX706 E/M 90 300
Vcc < 3 6V
MAX708_C 50 200
s 1 C t 1 MAX708 E/M 50 300 A
I rr >11 I _ .
Jpp y ty L SUPPLY MAX7067C 135 3511 '
MAX706 E M 1 E o
Vcc < 5.5V - I 3 , I
MAX708_C 65 350
MAX 7087E/M 65 500
MAX70_P/R 2 55 9.63 2 JO
Reset Threshold (Note 2) Vnsr MAX/CLS 2 85 2.93 3 00 V
F MAX70_T 3.00 3 08 3.15
Reset Threshold Hysteresis .
(Note 2) yo mV
H tP I Width (N 1 2) t MAX70_P/R: Vcc =3.0v. MAx7o_sn: Vcc = 33v 140 200 280
IS 0 e ms
e. e use f HST Vcc = 5OV 200 j
v I = 500 A 0.8 v
OH VRST (max) < VCC < 3 6V SOURCE p X CC "
VOL ‘SINK = 1.2mA 0 3
“RE Output Voltage Vor, IsoURCE = 800pA vac - 1.5
- 4.5V v 5.5V v
(h/A)(70_H/S(T) VOL < CC < lsto; = 3 2mA 0.4
v MAX70_C. Vcc = lov, ISINK = 50PA o 3
0" MAX70_E/M: Vcc = 1 2v. ISM = 100uA o 3
v I ~=215A V3706
OH VRST (max) < Vcc < 3EV SOURCE u Cl j
RESET Oulpu! Voltage VOL ISM = 1 MA 0 3 v
(MAX706P) V I R _ = 800 A Vt: , 7 1 5
o-, 4.5V < vcc < s.sv sou CL " L
L VOL ls1NK = 3.2mA O 4
2 - MAXIM
