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CAT706SVI-GT3

P1-P3P4-P6P7-P9P10-P12
CAT705, CAT706, CAT813
http://onsemi.com
4
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Typical values at T
A
= 25°C and V
CC
= 5 V for CAT705, CAT706 and
CAT813 versions. V
CC
= 3.3 V for the CAT706 T/S versions; V
CC
= 3.0 V for the CAT706 R version.) (Note 1)
Parameter
Symbol Test Conditions Min Typ Max Units
Supply Current I
CC
CAT705, CAT706, CAT813 6 17
mA
CAT706 (R/S/T Versions) 4 12
mA
Reset Threshold V
RST
CAT705 & CAT813 at
−40°C ≤ T
A
≤ +85°C
4.50 4.65 4.75 V
CAT706 at −40°C ≤ T
A
≤ +85°C 4.25 4.40 4.50 V
CAT706T at −40°C ≤ T
A
≤ +85°C 3.00 3.08 3.15 V
CAT706S at −40°C ≤ T
A
≤ +85°C 2.85 2.93 3.00 V
CAT706R at −40°C ≤ T
A
≤ +85°C 2.55 2.63 2.70 V
Reset Threshold Tempco (Note 1) 40 ppm/°C
Reset Threshold Hysteresis
(Note 1)
CAT705 & CAT813 10 mV
CAT706 5 mV
V
CC
to Reset Delay (Note 2) t
RD
V
CC
= V
TH
to (V
TH
– 100 mV) 20
ms
Reset Active Timeout Period t
RP
140 200 400 ms
RESET Output High Voltage V
OH
CAT705 & CAT706, 4.5 V < V
CC
<
5.5 V, I
SOURCE
= −800 mA
V
CC
−
1.5 V
V
CAT705 & CAT706, V
RST
(max)
<
V
CC
< 3.6 V, I
SOURCE
= −500 mA
0.8 x V
CC
RESET Output Low Voltage V
OL
CAT705 & CAT706, 4.5 V < V
CC
<
5.5 V, I
SINK
= 3.2 mA
0.4
V
CAT705 & CAT706, V
RST
(max)
<
V
CC
< 3.6 V, I
SINK
= 1.2 mA
0.3
CAT705 &CAT706, V
CC
= 1 V,
I
SINK
= 100 mA
0.3
RESET Output High Voltage V
OH
CAT813, V
CC
= V
RST
max
,
I
SOURCE
= −120 mA
V
CC
−
1.5 V
V
CAT813, V
CC
= V
RST
max
,
I
SOURCE
= −30 mA
0.8 x V
CC
RESET Output Low Voltage V
OL
CAT813, V
CC
= V
RST
min
,
I
SINK
= 3.2 mA
0.4
V
CAT813, V
CC
= 1.2 V,
I
SINK
= 100 mA
0.3
WATCHDOG INPUT
Watchdog Timeout Period t
WD
1.00 1.6 2.25 s
WDI Pulse Width t
WP
V
IL
= 0.4 V, V
IH
= 0.8 x V
CC
50 ns
WDI Input Voltage (Note 3)
V
IL
0.3 x V
CC
V
V
IH
0.7 x V
CC
WDI Input Current (Note 3)
WDI = V
CC
, Time Average 50 150 mA
WDI = 0 V, Time Average −150 −50
1. Limits are guaranteed by design and not production tested.
2. The RESET short−circuit current is the maximum pull−up current when reset is driven low by a bidirectional output.
3. WDI is internally serviced within the watchdog period if WDI is left open.
4. RESET for CAT705 & CAT706 & RESET for CAT813.
5. Not 100% tested but guaranteed by design.
CAT705, CAT706, CAT813
http://onsemi.com
5
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Typical values at T
A
= 25°C and V
CC
= 5 V for CAT705, CAT706 and
CAT813 versions. V
CC
= 3.3 V for the CAT706 T/S versions; V
CC
= 3.0 V for the CAT706 R version.) (Note 1)
Parameter UnitsMaxTypMinTest ConditionsSymbol
WATCHDOG INPUT
WDO Output Voltage V
W_OH
V
RST
(max)
< V
CC
< 3.6 V;
I
SOURCE
= −500 mA
0.8 x V
CC
V
4.5 V < V
CC
< 5.5 V,
I
SOURCE
= −800 mA
V
CC
– 1.5 V
CC
– 0.25
V
W_OL
V
RST
(max)
< V
CC
< 3.6 V,
I
SINK
= +500 mA
0.3
4.5 V < V
CC
< 5.5 V,
I
SINK
= 1.2 mA
0.1 0.4
WDO to WDI setup time (Note 5) t
WDSU
250 ns
MANUAL RESET INPUT
MR Input Voltage
V
IL
0.3 x V
CC
V
V
IH
0.7 x V
CC
MR Pull−up Current MR = 0 V 40 70 140
mA
MR Pulse Width t
PB
1
ms
MR Pull−up Resistance R
MR
40 60 80
kW
MR low to Reset Delay (Note 4) t
PDLY
5
ms
POWER−FAIL INPUT
PFI Input Threshold V
CC
= 5 V 1.2 1.25 1.3 V
PFI Input Current −25 0.01 25 nA
PFO Output Voltage V
P_OH
V
RST(max)
< V
CC
< 3.6 V,
I
SOURCE
= −500 mA
0.8 x V
CC
V
4.5 V < V
CC
< 5.5 V,
I
SOURCE
= −800 mA
V
CC
−
1.5
0.4
V
P_OL
V
RST
(max)
< V
CC
< 3.6 V,
I
SINK
= +1.2 mA
0.3
4.5 V < V
CC
< 5.5 V, I
SINK
= 3.2 mA 0.4
1. Limits are guaranteed by design and not production tested.
2. The RESET short−circuit current is the maximum pull−up current when reset is driven low by a bidirectional output.
3. WDI is internally serviced within the watchdog period if WDI is left open.
4. RESET for CAT705 & CAT706 & RESET for CAT813.
5. Not 100% tested but guaranteed by design.
CAT705, CAT706, CAT813
http://onsemi.com
6
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 2. V
CC
Supply Current vs. Temperature Figure 3. Normalized Reset Threshold Voltage
vs. Temperature
TEMPERATURE (°C) TEMPERATURE (°C)
100806040200−20−40
1
2
3
4
5
6
8
9
100806040200−20−40
0.94
0.96
0.98
1.00
1.02
1.04
1.06
SUPPLY CURRENT (mA)
NORMALIZED RESET THRESHOLD (V)
120
7
FUNCTIONAL DESCRIPTION
Processor Reset
The CAT705, CAT706 & CAT813 detect supply voltage
(V
CC
) conditions that are below the specified voltage trip
value (V
RST
) and provide a reset output to maintain correct
system operation. On power−up, RESET (or RESET for the
CAT813) are kept active for a minimum delay t
RP
of 140 ms
after the supply voltage (V
CC
) rises above V
RST
to allow the
power supply and processor to stabilize. When V
CC
drops
below the voltage trip value (V
RST
), the reset output signals
RESET (or RESET) are pulled active. RESET (or RESET)
is specifically designed to provide the reset input signals for
processors. This provides reliable and consistent operation
as power is turned on, off or during brownout conditions by
maintaining the processor operation in known conditions.
Manual Reset
The CAT705, CAT706 & CAT813 each have a Manual
Reset (MR) input to allow for alternative control of the reset
outputs. The MR input is designed for direct connection to
a pushbutton (see Figure 4). The MR input is internally
pulled up by 60 kW resistor and must be pulled low to cause
the reset output to go active. Internally, this input is
debounced and timed such that RESET (or RESET) signals
of at least 140 ms minimum will be generated. The min
140 ms t
RP
delay commences as the Manual Reset input is
released from the low level. (see Figure 5).
WDI
GND
PFI
CAT705
CAT706
CAT813
Figure 4. Pushbutton RESET
V
CC
MR
PFO
WDO
RESET/RESET
RESET
Figure 5. Timing Diagram – Pushbutton RESET
RESET
MR
V
IL
t
PB
t
PDLY
V
IH
t
RP
V
OH
V
OL
P1-P3P4-P6P7-P9P10-P12

CAT706SVI-GT3

Mfr. #:
Buy CAT706SVI-GT3
Manufacturer:
ON Semiconductor
Description:
Supervisory Circuits Microprocessor Super Circuit
Lifecycle:
New from this manufacturer.
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