MICROCHIP TC1026CEPA

TC1026
Linear Building Block – Low Power Comparator with
Op Amp and Voltage Reference
Features
General Description
• Combines Low-Power Op Amp, Comparator and
Voltage Reference in a Single Package
• Optimized for Single Supply Operation
• Small Packages: 8-Pin MSOP, 8-Pin SOIC,
8-Pin PDIP
• Ultra Low Input Bias Current: Less than 100pA
• Low Quiescent Current: 12µA (Typ.)
• Rail-to-Rail Inputs and Outputs
• Operates Down to VDD = 1.8V, Min
The TC1026 is a mixed-function device combining a
general-purpose op amp, comparator and voltage
reference in a single 8-pin package. This increased
integration allows the user to replace two or three
packages, which saves space, lowers supply current
and increases system performance.
Applications
Packaged in a space-saving 8-Pin MSOP, the TC1026
consumes half the board area of an 8-Pin SOIC and is
ideal for applications requiring high integration, small
size and low power. It is also available in 8-Pin SOIC
and 8-Pin PDIP packages.
• Power Management Circuits
• Battery Operated Equipment
• Consumer Products
Device Selection Table
Functional Block Diagram
Temperature
Range
Package
TC1026CEPA
8-Pin PDIP
-40°C to +85°C
TC1026CEUA
8-Pin MSOP
-40°C to +85°C
TC1026CEOA
8-Pin SOIC
-40°C to +85°C
AMPOUT
AMPIN-
TC1026
1
7
AMP
AMPIN+
8-Pin PDIP
8-Pin MSOP
8-Pin SOIC
VSS
AMPOUT
1
8
VDD
AMPIN
2
7
CMPOUT
AMPIN+
3
6
REF (CMPIN)
VSS
4
5
CMPIN+
TC1026CEPA
TC1026CEUA
TC1026CEOA
 2002 Microchip Technology Inc.
3
4
CMPOUT
6
Voltage
Reference
VDD
CMP
+
-
Package Types
8
2
+
Part Number
Both the op amp and comparator have rail-to-rail inputs
and outputs which allows operation from low supply
voltages with large input and output swings. The
TC1026 is optimized for low voltage (VDD = 1.8V), low
supply current (12µA typ) operation.
5
REF (CMPIN-)
CMPIN+
DS21725B-page 1
TC1026
1.0
ELECTRICAL
CHARACTERISTICS
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage ......................................................6.0V
Package Power Dissipation:
8-Pin PDIP ...............................................730 mW
8-Pin SOIC ...............................................470 mW
8-Pin MSOP .............................................320 mW
Voltage on Any Pin .......... (V SS – 0.3V) to (VDD + 0.3V)
Junction Temperature....................................... +150°C
Operating Temperature Range............. -40°C to +85°C
Storage Temperature Range .............. -55°C to +150°C
TC1026 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Typical values apply at 25°C and VDD = 3.0V; TA = -40° to +85°C, and VDD = 1.8V to 5.5V, unless
otherwise specified.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
VDD
Supply Voltage
1.8
—
5.5
V
IQ
Supply Current
—
12
18
µA
All outputs unloaded
—
100
—
V/mV
RL = 10kΩ, VDD = 5V
VSS – 0.2
—
VDD + 0.2
V
±100
±0.3
±500
±1.5
µV
mV
Op Amp
AVOL
Large Signal Voltage Gain
VICMR
Common Mode Input Range
VOS
Input Offset Voltage
IB
Input Bias Current
-100
50
100
pA
VOS (DRIFT)
Input Offset Voltage Drift
—
±4
—
µV/°C
GBWP
Gain-Bandwidth Product
—
90
—
kHz
SR
Slew Rate
—
35
—
VDD = 3V, VCM = 1.5V, TA = 25°C
TA = -40°C to 85°C
TA = 25°C, VCM = VDD to VSS
VDD = 3V, VCM = 1.5V
VDD = 1.8V to 5.5V;
VO = VDD to VSS
mV/µsec CL = 100pF
RL = 1MΩ to GND
Gain = 1
VIN = VSS to VDD
VOUT
Output Signal Swing
VSS + 0.05
—
VDD – 0.05
V
RL = 10kΩ
CMRR
Common Mode Rejection Ratio
66
—
—
dB
TA = 25°C, VDD = 5V
VCM = VDD to VSS
PSRR
Power Supply Rejection Ratio
80
—
—
dB
TA = 25°C, VCM = VSS
VDD = 1.8V to 5V
ISRC
Output Source Current
3
—
—
mA
VIN+ = VDD, VIN - = VSS
Output Shorted to VSS
VDD = 1.8V, Gain = 1
ISINK
Output SInk Current
—
125
—
nV/Hz
IN+ = VSS, IN- = VDD
Output Shorted to VDD
VDD = 1.8V, Gain = 1
En
Input Noise Voltage
—
10
—
µVpp
0.1Hz to 10Hz
en
Input Noise Voltage Density
—
125
—
nV/√Hz
1kHz
Comparator
VIR
Input Voltage Range
VSS – 0.2
—
VDD + 0.2
V
VOS
Input Offset Voltage
-5
-5
—
—
+5
+5
mV
IB
Input Bias Current
––
—
±100
pA
TA = 25°C, IN+ = VDD to VSS
VOH
Output High Voltage
VDD – 0.3
—
—
V
RL = 10kΩ to VSS
VOL
Output Low Voltage
—
—
0.3
V
RL = 10kΩ to VDD
DS21725B-page 2
VDD = 3V, TA = 25°C
TA = -40°C to 85°C
 2002 Microchip Technology Inc.
TC1026
TC1026 ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Typical values apply at 25°C and VDD = 3.0V; TA = -40° to +85°C, and VDD = 1.8V to 5.5V, unless
otherwise specified.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
PSRR
Power Supply Rejection Ratio
60
—
—
dB
TA = 25°C
VDD = 1.8V to 5V
ISRC
Output Source Current
1
—
—
mA
IN+ = VDD
Output Shorted to VSS
VDD = 1.8V
ISINK
Output Sink Current
2
—
—
mA
IN+ = VSS
Output Shorted to VDD
VDD = 1.8V
tPD1
Response Time
—
4
—
µsec
100mV Overdrive, CL = 100pF
tPD2
Response Time
—
6
—
µsec
10mV Overdrive, CL = 100pF
1.176
1.200
1.221
V
50
—
—
µA
Voltage Reference
VREF
Reference Voltage
IREF(SOURCE) Source Current
IREF(SINK)
Sink Current
50
—
—
µA
CL(REF)
Load Capacitance
—
—
100
pF
 2002 Microchip Technology Inc.
DS21725B-page 3
TC1026
2.0
PIN DESCRIPTION
The description of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Pin No.
(8-Pin PDIP)
(8-Pin MSOP)
(8-Pin SOIC)
Symbol
1
AMPOUT
Description
Op amp output.
2
AMPIN-
Inverting op amp input.
3
AMPIN+
Non-inverting op amp input.
4
VSS
5
CMPIN+
6
REF(CMPIN)
7
CMPOUT
8
VDD
DS21725B-page 4
Negative power supply.
Non-inverting comparator input.
Inverting comparator input and voltage reference output voltage.
Comparator output.
Positive power supply.
 2002 Microchip Technology Inc.
TC1026
3.0
DETAILED DESCRIPTION
4.0
TYPICAL APPLICATIONS
The TC1026 is one of a series of very low power, linear
building block products targeted at low voltage, single
supply applications. The TC1026 minimum operating
voltage is 1.8V, and typical supply current is only 12µA.
It combines a comparator, an op amp and a voltage
reference in a single package.
The TC1026 lends itself to a wide variety of
applications, particularly in battery powered systems. It
typically finds application in power management,
processor supervisory and interface circuitry.
3.1
Hysteresis can be set externally with three resistors
using positive feedback techniques (see Figure 4-1).
The design procedure for setting external comparator
hysteresis is as follows:
Comparator
The TC1026 contains one comparator. The comparator’s input range extends beyond both supply voltages
by 200mV and the outputs will swing to within several
millivolts of the supplies depending on the load current
being driven. The inverting input is internally connected
to the output of the reference.
The comparator exhibits propagation delay and supply
current which are largely independent of supply
voltage. The low input bias current and offset voltage
make it suitable for high impedance precision
applications.
3.2
Operational Amplifier
The TC1026 contains one rail-to-rail op amp. The
amplifier’s input range extends beyond both supplies
by 200mV and the outputs will swing to within several
millivolts of the supplies depending on the load current
being driven.
The amplifier design is such that large signal gain, slew
rate and bandwidth are largely independent of supply
voltage. The low input bias current and offset voltage of
the TC1026 make it suitable for precision applications.
3.3
4.1
1.
2.
3.
Choose the feedback resistor RC. Since the
input bias current of the comparator is at most
100pA, the current through RC can be set to
100nA (i.e., 1000 times the input bias current)
and retain excellent accuracy. The current
through RC at the comparator’s trip point is VR /
RC where VR is a stable reference voltage.
Determine the hysteresis voltage (VHY) between
the upper and lower thresholds.
Calculate RA as follows:
EQUATION 4-1:
VH Y
R A = R C  -----------
V

DD
4.
5.
Choose the rising threshold voltage for VSRC
(VTHR).
Calculate RB as follows:
EQUATION 4-2:
1
R B = ----------------------------------------------------------V THR
1
1
 --------------------  – ------ – ------V × R  R
R
A
A RC
Voltage Reference
A 2.0% tolerance, internally biased, 1.20V bandgap
voltage reference is included in the TC1026. It has a
push-pull output capable of sourcing and sinking at
least 50µA.
External Hysteresis (Comparator)
6.
Verify the
formulas:
threshold
voltages
with
these
VSRC rising:
EQUATION 4-3:
1
1
1
V TH R = ( V R ) ( R A )  ------- +  ------- +  -------
R 
R 
R 
A
B
C
VSRC falling:
EQUATION 4-4:
V THF = V THR –
 2002 Microchip Technology Inc.
R A × V DD
 -----------------------
RC 
DS21725B-page 5
TC1026
FIGURE 4-1:
COMPARATOR
EXTERNAL HYSTERESIS
CONFIGURATION
RC
TC1026
VDD
RA
+
VSRC
VOUT
–
TC1026
Comparator
RB
VR
4.2
Precision Battery Monitor
Figure 4-2 is a precision battery low/battery dead
monitoring circuit. Typically, the battery low output
warns the user that a battery dead condition is
imminent. Battery dead typically initiates a forced
shutdown to prevent operation at low internal supply
voltages (which can cause unstable system operation).
The circuit of Figure 4-2 uses two TC1026 devices and
only six external resistors. AMP 1 is a simple buffer
while CMPTR1 and CMPTR2 provide precision voltage
detection using VR as a reference. Resistors R2 and
R4 set the detection threshold for BATT LOW while
resistors R1and R3 set the detection threshold for
BATT FAIL. The component values shown assert
BATT LOW at 2.2V (typical) and BATT FAIL at 2.0V
(typical). Total current consumed by this circuit is
typically 28µA at 3V. Resistors R5 and R6 provide
hysteresis for comparators CMPTR1 and CMPTR2,
respectively.
DS21725B-page 6
4.3
Voice Band Receive Filter
The majority of spectral energy for human voices is in
a 2.7kHz frequency band from 300Hz to 3kHz. To
properly recover a voice signal in applications such as
radios, cellular phones and voice pagers, a low-power
bandpass filter that is matched to the human voice
spectrum can be implemented using Microchip’s
CMOS op amps. Figure 4-3 shows a unity-gain multipole Butterworth filter with ripple less than 0.15dB in
the human voice band. The lower 3dB cut-off frequency
is 70Hz (single-order response), while the upper cut-off
frequency is 3.5kHz (fourth-order response).
4.4
Supervisory Audio Tone (SAT)
Filter for Cellular
Supervisory Audio Tones (SAT) provide a reliable
transmission path between cellular subscriber units
and base stations. The SAT tone functions much like
the current/voltage used in land line telephone systems
to indicate that a phone is off the hook. The SAT tone
may be one of three frequencies: 5970, 6000 or
6030Hz. A loss of SAT implies that channel conditions
are impaired, and if SAT is interrupted for more than 5
seconds, a cellular call is terminated.
Figure 4-4 shows a high Q (30) first order SAT
detection bandpass filter using Microchip’s CMOS op
amp architecture. This circuit nulls all frequencies
except the three SAT tones of interest.
 2002 Microchip Technology Inc.
TC1026
FIGURE 4-2:
PRECISION BATTERY MONITOR
To System DC/DC
Converter
R4, 470k, 1%
R5, 7.5M
VDD
VDD
+
Op Amp
R2, 330k, 1%
+
AMP1
–
3V
Alkaline
Comparator
CMPTR1
–
BATTLOW
+
VDD
TC1026
R1, 270k, 1%
VR
–
Comparator
CMPTR2
BATTFAIL
+
R6, 7.5M
R3, 470k, 1%
FIGURE 4-3:
MULTI-POLE BUTTERWORTH VOICE BAND RECEIVE FILTER
VDD /2
Gain = 0dB
Fch = 3.5kHz
-24dB/Octave
0.1µF
22.6k
VDD
VOUT
Op Amp
+
–
Fcl = 70Hz
+6dB/Octave
22.6k
Passband Ripple
< 0.15dB
750pF
6800pF
TC1026
VIN
VDD
21.0k
21.0k
21.0k
+
2400pF
 2002 Microchip Technology Inc.
470pF
Op Amp
–
DS21725B-page 7
TC1026
FIGURE 4-4:
SECOND ORDER SAT BANDPASS FILTER
Gain = 0dB
Q = 30
.036µF
Q = FC
BW (3dB)
48.7k
FC = 6kHz
VDD
VIN
24.3k
VOUT
.036µF
–
TC1026
+
Amp.
11.2
VDD/2
VDD/2
DS21725B-page 8
 2002 Microchip Technology Inc.
TC1026
5.0
TYPICAL CHARACTERISTICS
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Comparator Propagation Delay
vs. Supply Voltage
7
TA = 25°C
CL = 100pF
DELAY TO FALLING EDGE (µsec)
6
Overdrive = 10mV
5
4
Overdrive = 50mV
3
2
6
Overdrive = 10mV
5
Overdrive = 100mV
Overdrive = 50mV
4
3
2
2.5
3
3.5
4
4.5
5
1.5
5.5
2
6
VDD = 5V
5
VDD = 4V
VDD = 2V
4
VDD = 3V
2.5
3
3.5
4
4.5
5
5.5
-40°C
SUPPLY VOLTAGE (V)
2.5
7
2.5
VDD = 4V
VDD = 3V
VDD = 2V
4
VOUT - VSS (V)
VDD - VOUT (V)
VDD = 5V
TA = 25°C
2.0
2.0
6
85°C
Comparator Output Swing
vs. Output Sink Current
TA = 25°C
Overdrive = 100mV
25°C
TEMPERATURE (°C)
Comparator Output Swing
vs. Output Source Current
Comparator Propagation Delay
vs. Temperature
5
Overdrive = 100mV
3
SUPPLY VOLTAGE (V)
DELAY TO FALLING EDGE (µsec)
7
TA = 25°C
CL = 100pF
2
1.5
VDD = 3V
1.5
VDD = 1.8V
1.0
VDD = 5.5V
.5
1.5
VDD = 3V
1.0
VDD = 1.8V
.5
VDD = 5.5V
3
-40°C
0
0
25°C
0
85°C
3
2
4
ISOURCE (mA)
1
TEMPERATURE (°C)
Comparator Output Short-Circuit
Current vs. Supply Voltage
5
TA = -40°C
50
TA = 25°C
40
TA = 85°C
C
0°
30
TA
20
Sinking
10
Sourcing
0
0
=
-4
TA = 25°C
TA = 85°C
3
1
2
4
5
SUPPLY VOLTAGE (V)
 2002 Microchip Technology Inc.
VDD = 1.8V
VDD = 3V
1.220
VDD = 5.5V
Sinking
1.200
Sourcing
1.180
VDD = 5.5V
1.160
VDD = 1.8V
VDD = 3V
1.140
6
0
2
4
6
1
2
3
4
5
6
ISINK (mA)
1.240
60
0
6
Reference Voltage vs.
Load Current
REFERENCE VOLTAGE (V)
OUTPUT SHORT-CIRCUIT CURRENT (mA)
Comparator Propagation Delay
vs. Temperature
8
LOAD CURRENT (mA)
10
SUPPLY AND REFERENCE VOLTAGES (V)
DELAY TO RISING EDGE (µsec)
7
Comparator Propagation Delay
vs. Supply Voltage
DELAY TO RISING EDGE (µsec)
Note:
Line Transient
Response of VREF
4
VDD
3
2
VREF
1
0
0
100
200
300
400
TIME (µsec)
DS21725B-page 9
TC1026
5.0
TYPICAL CHARACTERISTICS (CONTINUED)
Op Amp DC Open-Loop Gain
vs. Supply Voltage
Op Amp DC Open-Loop Gain
vs. Temperature
Op Amp Short-Circuit Current
vs. Supply Voltage
50
3000
140
OUTPUT CURRENT (mA)
2500
100
2000
80
1500
60
1000
500
20
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
SUPPLY VOLTAGE (V)
Op Amp Short-Circuit Current
vs. Supply Voltage
1000
10% Overshoot
-5
-10
RLOAD (kΩ)
OUTPUT CURRENT (mA)
25°C
TEMPERATURE (°C)
-15
-20
ISRC
V
V
= 1.5V
Region of Marginal Stability
100
Region of Stable Operation
10
-25
-30
1
1.0
2.0
3.0
4.0
5.0
SUPPLY VOLTAGE (V)
0
6.0
Op Amp Large-Signal
Transient Response
ISINK
25
20
15
10
250 500 750 1000 12501500 1750 2000
1.0
2.0
3.0
4.0
5.0
SUPPLY VOLTAGE (V)
6.0
Op Amp Small-Signal
Transient Response
100
50
0
100
50
0
10 20 30 40 50 60 70 80 90
TIME (µsec)
Op Amp Power Supply Rejection
Ratio (PSRR) vs. Frequency
6
0
4
-10
V
V
IN =
2
PP
-20
0
PSRR (dB)
INPUT VOLTAGE (mV)
-35
0.0
30
0
0.0
85°C
Op Amp Load Resistance
vs. Load Capacitance
0
40
35
5
0
-40°C
INPUT VOLTAGE (mV)
40
OUTPUT VOLTAGE (mV)
DC OPEN-LOOP GAIN (dB)
45
120
6
4
-30
-40
-50
2
-60
0
-70
10 20 30 40 50 60 70 80 90
TIME (µsec)
DS21725B-page 10
100
1K
10K
100K
FREQUENCY (Hz)
 2002 Microchip Technology Inc.
TC1026
5.0
TYPICAL CHARACTERISTICS (CONTINUED)
Reference Voltage
vs. Supply Voltage
Supply Current vs. Supply Voltage
14
SUPPLY CURRENT (µA)
REFERENCE VOLTAGE (V)
1.25
1.20
1.15
1.10
TA = 85°C
12
10
TA = -40°C
8
TA = 25°C
6
4
2
1.05
1
4
2
3
SUPPLY VOLTAGE (V)
 2002 Microchip Technology Inc.
5
0
1
2
3
4
5
SUPPLY VOLTAGE (V)
6
DS21725B-page 11
TC1026
6.0
PACKAGING INFORMATION
6.1
Package Marking Information
Package marking data not available at this time.
6.2
Taping Form
Component Taping Orientation for 8-Pin MSOP Devices
User Direction of Feed
PIN 1
W
P
Standard Reel Component Orientation
for TR Suffix Device
Carrier Tape, Number of Components Per Reel and Reel Size
Package
8-Pin MSOP
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
12 mm
8 mm
2500
13 in
Component Taping Orientation for 8-Pin SOIC (Narrow) Devices
User Direction of Feed
PIN 1
W
P
Standard Reel Component Orientation
for TR Suffix Device
Carrier Tape, Number of Components Per Reel and Reel Size
Package
8-Pin SOIC (N)
DS21725B-page 12
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
12 mm
8 mm
2500
13 in
 2002 Microchip Technology Inc.
TC1026
6.3
Package Dimensions
8-Pin Plastic DIP
PIN 1
.260 (6.60)
.240 (6.10)
.045 (1.14)
.030 (0.76)
.070 (1.78)
.040 (1.02)
.310 (7.87)
.290 (7.37)
.400 (10.16)
.348 (8.84)
.200 (5.08)
.140 (3.56)
.040 (1.02)
.020 (0.51)
.150 (3.81)
.115 (2.92)
.110 (2.79)
.090 (2.29)
.015 (0.38)
.008 (0.20)
3° MIN.
.400 (10.16)
.310 (7.87)
.022 (0.56)
.015 (0.38)
Dimensions: inches (mm)
8-Pin MSOP
PIN 1
.122 (3.10)
.114 (2.90)
.197 (5.00)
.189 (4.80)
.026 (0.65) TYP.
.122 (3.10)
.114 (2.90)
.043 (1.10)
MAX.
.016 (0.40)
.010 (0.25)
.006 (0.15)
.002 (0.05)
.008 (0.20)
.005 (0.13)
6° MAX.
.028 (0.70)
.016 (0.40)
Dimensions: inches (mm)
 2002 Microchip Technology Inc.
DS21725B-page 13
TC1026
6.3
Package Dimensions (Continued)
8-Pin SOIC
PIN 1
.157 (3.99)
.150 (3.81)
.244 (6.20)
.228 (5.79)
.050 (1.27) TYP.
.197 (5.00)
.189 (4.80)
.069 (1.75)
.053 (1.35)
.020 (0.51) .010 (0.25)
.013 (0.33) .004 (0.10)
.010 (0.25)
.007 (0.18)
8° MAX..
.050 (1.27)
.016 (0.40)
Dimensions: inches (mm)
DS21725B-page 14
 2002 Microchip Technology Inc.
TC1026
Sales and Support
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1.
2.
3.
Your local Microchip sales office
The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
The Microchip Worldwide Site (www.microchip.com)
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 2002 Microchip Technology Inc.
DS21725B-page15
TC1026
NOTES:
DS21725B-page16
 2002 Microchip Technology Inc.
TC1026
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with
express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, FilterLab,
KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER,
PICSTART, PRO MATE, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microPort,
Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM,
MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select Mode
and Total Endurance are trademarks of Microchip Technology
Incorporated in the U.S.A.
Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro ® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
 2002 Microchip Technology Inc.
DS21725B-page 17
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03/01/02
*DS21725B*
DS21725B-page 18
 2002 Microchip Technology Inc.