NE56610/11/12 Series
System Reset
Rev 0
February, 2001
Preliminary Product Specification
General Description
The NE56610/11/12 series is a family of devices designed to generate a reset signal for a
variety of microprocessor and logic systems. Accurate reset signals are generated during
momentary power interruptions or when ever power supply voltages sag to intolerable levels.
The NE56610/11/12 incorporates an internal timer to provide reset delay and ensure proper
operating voltage has been attained. In addition, a manual reset pin is available. An Open
Collector output topology is incorporated to provide adaptability for a wide variety of logic and
microprocessor systems.
NE56610/11/12 is available in the TSSOP5 surface mount package.
M/R
SUB
GND
1
2
3
4
5
V
CC
V
OUT
TSSOP5
Features
• 12V DC Maximum Operating Voltage
• Low Operating Voltage (0.65 V)
• Internal Reset Delay Timer
• NE56610 (50 mS Typical)
• NE56611 (100mS Typical)
• NE56612 (200mS Typical)
• Offered in Reset Thresholds of 2.0, 2.7, 2.8, 2.9, 3.0, 3.1, 4.2,
4.3, 4.4, 4.5, 4.7 V DC
• Available in SSOP5 Surface Mount Package
• Manual Reset Input
Applications
• Micro-Computer Systems
• Logic Systems
• Battery Monitoring Systems
• Back-Up Power Supply Circuits
• Voltage Detection Circuits
• Mechanical Reset Circuits
Simplified Device Diagram
V
CC
5
NE56610/11/12
4
V
OUT
Reset
Delay
+
GND
M/R
3
V
REF
1
2
SUB
Ordering Information
Description
5-pin SOT23 (TSSOP5) plastic surface mount
System Reset (100mS Typical Internal Reset Delay)
System Reset (200mS Typical Internal Reset Delay)
Temperature Range
-20 - +75
°C
-20 - +75
°C
-20 - +75
°C
Order Code
NE56610-xxGW
NE56611-xxGW
NE56612-xxGW
DWG#
TSSOP5
TSSOP5
TSSOP5
Note: Each device has 6 (six) detection voltage options, indicated by the -xx on the order code:
XX
-25
-27
-29
Detect Voltage (Typ.)
2.5
2.7
2.9
XX
-39
-42
-45
Detect Voltage (Typ.)
3.9
4.2
4.5
Philips Semiconductors
NE56610/11/12 Series
System Reset
Pin Designation and Description
Pin Designation
1
2
3
4
5
Pin No
1
2
3
4
5
Pin Name
M/R
SUB
GND
V
OUT
V
CC
Function
Manual Reset input. Connect to ground when not using.
Substrate Pin. Connect to ground.
Ground
Reset High Output pin
Positive Power Supply Input
Maximum Ratings
Parameter
Storage Temperature Range
Ambient Operating Temperature Range
Power Supply Voltage
Manual Reset Input Voltage
Power Dissipation
Symbol
T
STG
T
A
V
CC
max.
V
RES
max
Pd
Rating
-40 - +125
-20 - +75
-0.3 - +12
-0.3 - +12
150
Unit
°C
°C
V
V
mW
Recommended Operating Conditions
Parameter
Ambient Operating Temperature Range
Power Supply Voltage
Symbol
T
A
V
CC
max.
Rating
-20 - +75
-0.3 - +12
Unit
°C
V
February 23, 2001
2 of 9
document number here
Philips Semiconductors
NE56610/11/12 Series
System Reset
DC ELECTRICAL CHARACTERISTICS
T
A
= 25°C, unless otherwise specified.
Note 1: Unless otherwise stated, M/R pin should always be connected to ground.
Parameter
Threshold Detection
V
CC
Falling
R
L
= 470Ω,
V
OL
≤
0.4V
Symbol
V
S
Test
Circuit
1
Part#
-45
-42
-39
-29
-27
-25
All
Min
4.3
4.0
3.7
2.75
2.55
2.35
30
Typ
4.5
4.2
3.9
2.90
2.70
2.50
50
Max
4.7
4.4
4.1
3.05
2.85
2.65
100
Unit
V
Hysteresis Voltage
V
CC
= Rising then Falling (∆V
S
= V
SH
-V
SL
)
R
L
= 470Ω
Threshold Temperature Coefficient
R
L
= 470Ω, T
A
= -20°C - +75°C
Low-level Output Voltage
V
CC
= V
S
min. -0.05V, R
L
= 470Ω
Output Leakage Current
V
CC
= 10V
Circuit ON Current
V
CC
= V
S
min. -0.05V, R
L
=
∞
Circuit OFF Current
V
CC
= V
S
typ./0.85V, R
L
=
∞
Reset Delay Time High (see note 1)
R
L
= 4.7kΩ
C
L
= 100pF
Reset Delay Time Low (see note 2)
R
L
= 4.7kΩ, C
L
= 100pF
Operating Supply Voltage
R
L
= 4.7kΩ, V
OL
≤
0.4V
Output ON Current 1
V
CC
= V
S
min. -0.05V, R
L
= 0
Output On Current 2
V
CC
= V
S
min. -0.05V, R
L
= 0
T
A
= -20°C - +75°C
M/R Threshold High
M/R Threshold High
V
M/RH
= 2.0v
M/R Threshold Low
∆V
S
1
mV
T
C
/ V
S
V
OL
I
OH
I
CCL
I
CCH
T
DLH
1
1
1
1
1
2
All
All
All
All
All
NE56610
NE56611
NE56612
All
All
All
All
8
6
30
60
120
±0.01
0.1
0.4
±0.1
300
15
50
100
200
20
0.65
500
25
75
150
300
% / °C
V
µA
µA
µA
mS
T
PHL
V
OPL
I
OL
1
I
OL
2
2
1
1
1
mS
0.85
V
mA
mA
V
M/RH
I
M/RH
V
M/RL
All
All
All
2.0
10
-0.3
60
0.8
V
µA
V
NOTES:
2. T
DLH
measured with V
CC
= (V
S
typ. -0.4V) and abruptly transitioning to (V
S
typ. +0.4)V. T
DLH
is duration from V
CC
transition high
to output transition high.
3. T
DHL
measured with V
CC
≥
(V
S
typ. +0.4V) and abruptly transitioning to (V
S
typ. -0.4)V. T
DHL
is duration from V
CC
transition low
to output transition low.
4. Ramp M/R voltage until Output Reset goes low.
February 23, 2001
3 of 9
document number here
Philips Semiconductors
NE56610/11/12 Series
System Reset
Typical Performance Curves
Figure 1. Normalized Detection versus Temperature
0.10
Figure 2. Circuit ON Current versus Temperature
500
V
S
, NORMALIZED DETECTION (V)
I
CCL
, CIRCUIT ON CURRENT (µA)
0.05
Threshold Normalized to 25°C
R
L
(Pull-Up to V
CC
) 470Ω
V
OL
≤
0.4V
V
CC
= V
S
min. -0.05V
R
L
=
∞
400
0.00
300
-0.05
200
-0.10
-50
-25
0
25
50
75
100
125
100
-50
-25
0
25
50
75
100
125
T
A
, TEMPERATURE (°C)
Figure 3.Detection Hysteresis versus Temperature
80
∆V
S
, DETECTION HYSTERESIS (mV)
∆V
S
= V
SH
- V
SL
R
L
(Pull-Up to V
CC
) = 470Ω
T
A
, TEMPERATURE (°C)
Figure 4. Circuit OFF Current versus Temperature
30
I
CCH
, CIRCUIT OFF CURRENT (µA)
V
CC
= V
S
typ. +0.85V
R
L
=
∞
25
70
60
20
50
15
40
-50
-25
0
25
50
75
100
125
10
-50
-25
0
25
50
75
100
125
T
A
, TEMPERATURE (°C)
Figure 5. Low-Level Output Voltage versus Temperature
120
T
A
, TEMPERATURE (°C)
Figure 6. Operating Supply Voltage versus Temperature
900
V
OL
, LOW-LEVEL OUTPUT (mV)
V
OPL
, OPERATING SUPPLY (mV)
V
CC
= V
S
min. -0.05V
R
L
(Pull-Up to V
CC
) 470Ω
100
800
700
V
OL
≤
0.4V
R
L
4.7kΩ
80
600
500
400
-50
60
40
-50
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
T
A
, TEMPERATURE (°C)
T
A
, TEMPERATURE (°C)
February 23, 2001
4 of 9
document number here
Philips Semiconductors
NE56610/11/12 Series
System Reset
Typical Performance Curves (continued)
Figure 7. Output ON Current versus Temperature
70
Figure 8. M/R Input High Current versus Temperature
I
M/RH
, M/R INPUT HIGH CURRENT (µA)
25
V
CC
= 5.0V
V
M/RH
= 2.0V
20
I
OL
, OUTPUT ON CURRENT (µA)
V
CC
= V
S
min. -0.05V
R
L
=
0
60
50
15
40
10
30
-50
-25
0
25
50
75
100
125
5.0
-50
-25
0
25
50
75
100
125
T
A
, TEMPERATURE (°C)
Figure 9. Reset Delay Time High versus Temperature
t
DLH
, RESET DELAY TIME HIGH (mS)
250
T
A
, TEMPERATURE (°C)
Figure 10. M/R Threshold High versus Temperature
1.6
V
M/RH
, M/R THRESHOLD HIGH (V)
225
200
175
150
125
100
75
50
25
-50
-25
0
25
50
75
100
125
SA56610
SA56612
V
CC
= 5.0V
1.4
1.2
R
L
4.7kΩ
C
L
= 100pF
SA56611
1.0
0.8
0.6
-50
-25
0
25
50
75
100
125
T
A
, TEMPERATURE (°C)
Figure 11. Reset Delay Time Low versus Temperature
14
R
L
4.7kΩ
C
L
= 100pF
t
DHL
, RESET DELAY TIME LOW (µS)
13
T
A
, TEMPERATURE (°C)
Figure 12. Icc and Vout versus Supply Voltage
500
5.0
4.0
400
300
12
I
CC
200
100
0
0
1.0
2.0
∆V
S
3.0
2.0
1.0
0
11
10
-50
-25
0
25
50
75
100
125
3.0
4.0
5.0
T
A
, TEMPERATURE (°C)
V
CC
, SUPPLY VOLTAGE (V)
February 23, 2001
5 of 9
document number here
V
OUT
, OUTPUT VOLTAGE (V)
I
CC
, SUPPLY CURRENT (µA)
R
L
= 470Ω
T
A
= 25°C
V
OUT
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