Features • • • • • • • • • • • • • • • Adjustable DC Characteristics Adjustable Transmit and Receive Gain Symmetrical Input of Microphone Amplifier Anti-clipping in Transmit Direction Automatic Line-loss Compensation Built-in Ear Protection DTMF and MUTE Input Adjustable Side Tone Suppression Independent of Sending and Receiving Amplification Integrated Amplifier for Loud-hearing Operation Anti-clipping for Loudspeaker Amplifier Improved Acoustical Feedback Suppression Selectable Line Impedance Voice Switch Supply Voltages for All Functional Blocks of a Subscriber Set Operation Possible from 10-mA Line Current Monolithic Integrated Feature Phone Circuit Benefits • Complete System Integration of Analog Signal Processing on One Chip • Very Few External Components U4089B-M Applications • • • • Feature Phones Answering Machines Fax Machines Speaker Phones Description The telephone circuit U4089B-M is a linear integrated circuit for use in feature phones, answering machines and fax machines. It contains the speech circuit, side tone equivalent and ear protection rectifiers. The circuit is line-powered and contains all components necessary for the amplification of signals and adaptation to the line. An integrated voice switch with a loudspeaker amplifier enables loud-hearing or hands-free operation. With an anti-feedback function, acoustical feedback during loudhearing can be reduced significantly. The generated supply voltage is suitable for a wide range of peripheral circuits. Figure 1. Simple Block Diagram Speech circuit Voice switch Audio amplifier Dialer Rev. 4570A–CORD–04/03 1 Figure 2. Block Diagram GT 44 MIC1 MIC2 DTMF TTXA VL STO 32 7 600 W 3 MIC 6 10 13 41 29 TLDR 28 TLDT Power supply Impedance control 33 VM GND 8 TX ACL Current supply AGA control 26 Acoustical feedback suppression control 25 ATAFS Transmit mute control I REF 31 Supply 11 21 Rattenuation SACL 23 22 GSA 2 9 30 900 W 1 INLDT SAI 20 V MP TXA 27 TSACL SENSE V B 4 INLDR SAO IMPSEL AGA IND 24 MUTX 39 RECO 40 GR 36 STI 42 RECIN U4089B-M 4570A–CORD–04/03 U4089B-M Pin Configuration Figure 3. Pinning SSO44 DTMF 1 44 GT NC 2 43 NC MIC2 3 42 RECIN MIC1 4 41 TTXA NC 5 40 GR IND 6 39 RECO VL 7 38 NC GND 8 37 NC SENSE 9 36 STI VB 10 35 NC SAO 11 34 NC 12 33 VM VMP 13 32 STO NC 14 31 IREF NC 15 30 AGA NC 16 29 TLDR NC 17 28 TLDT NC 18 27 INLDR NC 19 26 INLDT IMPSEL 20 25 ATAFS 21 24 MUTX GSA 22 23 SAI NC TSACL 3 4570A–CORD–04/03 Pin Description Pin Symbol 1 DTMF Input for DTMF signals. Also used for the answering machine and hands-free input. 3 MIC 2 Non-inverting input of microphone amplifier 4 MIC 1 Inverting input of microphone amplifier 6 IND The internal equivalent inductance of the circuit is proportional to the value of the capacitor at this pin. A resistor connected to ground may be used to reduce the DC line voltage. Line voltage 7 VL 8 GND 9 SENSE 10 VB 11 SAO Output of loudspeaker amplifier 13 VMP Regulated 3.3 V supply voltage for peripheral circuits. The maximum output current is 2 mA. Reference point for DC- and AC-output signals A small resistor (fixed) connected from this pin to VL sets the slope of the DC characteristic and also affects the linelength equalization characteristics and the line current at which the loudspeaker amplifier is switched on. Unregulated supply voltage for peripheral circuits (voice switch); limited to typically 7 V 20 Control input for selection of line impedance 1) 600 W IMPSEL 2) 900 W 3) Mute of second transmit stage (TXA); also used for indication of external supply (answering machine); last chosen impedance is stored 21 TSACL 22 GSA Current input for setting the gain of the speaker amplifier. Adjustment characteristic is logarithmical. For RGSA > 2 MW, the speaker amplifier is switched off. 23 SA I Speaker amplifier input (for loudspeaker, tone ringer and hands-free use) Time constant of anti-clipping of speaker amplifier 24 MUTX Three-state input of transmit mute: 1) Speech condition; inputs MIC1/MIC2 active 2) DTMF condition; input DTMF active. A part of the input signal is passed to the receiving amplifier as a confidence signal during dialing. 3) Input DTMF used for answering machine and hands-free use; receive branch is not affected. 25 ATAFS Attenuation of acoustical feedback suppression. Maximum attenuation of the AFS circuit is set by a resistor at this pin. Without the resistor, AFS is switched off. 26 INLDT Input of transmit level detector 27 INLDR Input of receive level detector 28 TLDT Time constant of transmit level detector 29 TLDR Time constant of receive level detector 30 AGA Automatic gain adjustment with line current. A resistor connected from this pin to GND sets the starting point. Max. gain change is 6 dB. 31 IREF Internal reference current generation; RREF = 62 kW; IREF = 20 µA 32 STO Side tone reduction output. Output resistance is approximately 300 W. Maximum load impedance is 10 kW. 33 VM Reference node for microphone, earphone and loudspeaker amplifier. Supply for electret microphone (IM £ 300 µA). 36 STI Input for side-tone network 39 RECO 40 GR 41 TTXA 42 RECIN 44 4 Function GT Output of receiving amplifier A resistor connected from this pin to GND sets the receiving amplification of the circuit; amplifier RA1 can be muted by applying VMP to GR Time constant of anti-clipping in transmit path Input of receiving path; input impedance is typically 80 kW A resistor from this pin to GND sets the amplification of the microphone and DTMF signals; the input amplifier can be muted by applying VMP to GT. U4089B-M 4570A–CORD–04/03 U4089B-M DC Line Interface and Supply-voltage Generation The DC line interface consists of an electronic inductance and an output stage which charges the capacitor at VB. The value of the equivalent inductance is given by: L = RSENSE ´ CIND ´ (RDC ´ R30)/(RDC + R30) In order to improve the supply during worst-case operating conditions, the PNP current source (IBOPT) supplies an extra amount of current to the supply voltages when the NPN in parallel is unable to conduct current. The U4089B-M contains a series regulator which provides a supply voltage VMP of 3.3 V at the 2 mA suitable for a microprocessor. Figure 4. DC Line Interface with Electronic Inductance and Generation of Regulated and Unregulated Supply VL 10 W SENSE RSENSE I BOPT < 5 mA V MP CIND 10 µF IND RDC + - + - 3.3 V/ 2 mA 3.3 V R30 30 kW 47 µF VB 7V V OFFS 220 µF 5 4570A–CORD–04/03 Figure 5. Functional Blocks for Power Supply VB VL LIDET 7V Voltage regulator Power supply V MP ES V LON TXA TXACL OFFSA COMP SAL, SA SACL AFS IMPED CONTR IMPSEL MIC, DTMF AGA, RA TX MUTE MUT REC, STBAL RECATT 1. In speech condition, the system is supplied by the line current. If the LIDET-block detects a line voltage above the fixed threshold (1.9 V), the internal signal VLON is activated, thus switching on all blocks of the chip. For line voltages below 1.9 V, the switches remain in their quiescent state as shown in Figure 5. OFFSACOMP disables the group listening feature (SAI, SA, SACL, AFS) below line currents of approximately 10 mA. 2. Selecting IMPSEL = high impedance activates all switches at the ES line. Acoustic Feedback Suppression Acoustical feedback from the loudspeaker to the handset microphone may cause instability in the system. The U4089B-M offers a very efficient feedback suppression circuit which uses a modified voice switch topology. Figure 6 shows the basic system configuration. Two attenuators (TX ATT and RX ATT) reduce the critical loop gain by introducing an externally adjustable amount of loss either in the transmit or in the receive path. The sliding control in block ATT CONTR determines whether the TX or the RX signal has to be attenuated. The overall loop gain remains constant under all operating conditions. Selection of the active channel is made by comparison of the logarithmically compressed TX and RX envelope curves. The system configuration for group listening, which is realized in the U4089B-M, is illustrated in Figure 7. TXA and SAI represent the two attenuators; the logarithmic envelope detectors are shown in a simplified way (operational amplifiers with two diodes). 6 U4089B-M 4570A–CORD–04/03 U4089B-M Figure 6. Basic Voice-switch System TX attenuation Handset microphone Logarithmic Hybrid Attenuation control Line Logarithmic Loud speaker RX attenuation Figure 7. Integration of the Acoustic Feedback-suppression Circuit Into the Speech Circuit Environment V GT INLDT VBG TLDT STO B V VL L Z L + Zint SAO AFS control Max att. - GSA + AGA VBG RECIN SAI SAI TLDR INLDR RECO GR STI STO STN 7 4570A–CORD–04/03 Figure 8. Acoustic Feedback Suppression by Alternative Control of Transmit and Speaker Amplifier Gain TLDT TXA RLDT SAI INLDT AGA AGA IAGAFS RLDR INLDR IATGSA TLDR ATAFS IGSA GSA RATAFS A detailed diagram of the AFS (Acoustic Feedback Suppression) is given in Figure 8. Receive and transmit signals are first processed by logarithmic rectifiers in order to produce the speech envelopes at TLDT and RLDT. After amplification, a decision is made by the differential pair of which direction should be transmitted. The attenuation of the controlled amplifiers TXA and SAI is determined by the emitter current IAT which is comprised of three parts: IATAFS IATGSA IAGAFS Sets maximum attenuation Decreases the attenuation when speaker amplifier gain is reduced Decreases the attenuation according to the loop-gain reduction caused by the AGA function IAT = IATAFS - IATGSA - IAGAFS DG = IAT ´ 0.67 dB/mA Figure 9 illustrates the principal relationship between the speaker amplifier gain (GSA) and attenuation of AFS (ATAFS). Both parameters can be adjusted independently, but the internal coupling between them has to be considered. The maximum GSA value to be used is 36 dB. The shape of the characteristic is moved in the x-direction by adjusting resistor RATAFS, thus changing ATAFS m . The actual value of the attenuation (ATAFSa), however, can be determined by reading the value which belongs to the actual gain GSAa. If the speaker amplifier gain is reduced, the attenuation of AFS is automatically reduced by the same amount in order to achieve a constant loop gain. Zero attenuation is set for speaker gains GSA ³ GSA0 = 36 dB - ATAFSm. 8 U4089B-M 4570A–CORD–04/03 U4089B-M Figure 9. Reducing Speaker Amplifier Gain Results in an Equal Reduction of AFS Attenuation ATAFS (dB) ATAFSm RATAFS RATAFS ATAFSa GSAO Operating Range of Speaker Amplifier not usable 36 dB GSA (dB) GSAa The basic behavior is illustrated in Figure 10. Actual values of ILON/ILOFF vary slightly with the adjustment of the DC characteristics and the selection of the internal line impedance. Figure 10. Threshold of Speaker Amplifier SA on SA off IL off IL on IL Figure 11. Comparator Thresholds Depend on the DC Mask and Line Impedance 7 RDC = ¥ 6 VL (V) RDC = 130 kW 5 RDC = 68 kW 4 3 10 12 14 16 18 20 IL (mA) ILON at line impedance = 600 W ILOFF at line impedance = 600 W ILON at line impedance = 900 W ILOFF at line impedance = 900 W 9 4570A–CORD–04/03 Absolute Maximum Ratings Parameters Symbol Value Unit Line current IL 140 mA DC line voltage VL 12 V °C Junction temperature Tj 125 Ambient temperature Tamb -25 to +75 °C Storage temperature Tstg -55 to +150 °C Total power dissipation, Tamb = 60°C, SSO44 Ptot 0.9 W Symbol Value Unit RthJA 70 K/W Thermal Resistance Parameters Junction ambient SSO44 Electrical Characteristics f = 1 kHz, 0 dBm = 775 mVrms, IM = 0.3 mA, IMP = 2 mA, RDC = 130 kW, Tamb = 25°C, RGSA = 560 kW, Zear = 68 nF + 100 W, ZM = 68 nF, Pin 20 open, VMUTX = GND, unless otherwise specified. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit DC Characteristics DC voltage drop over circuit IL = 2 mA IL = 14 mA IL = 60 mA IL = 100 mA VL 4.6 8.8 2.4 5.0 7.5 9.4 10.0 V V V V 5.4 Transmission Amplifier, IL = 14 mA, VMIC = 2 mV, RGT = 27 kW, Unless Otherwise Specified Adjustment range of transmit gain GT 40 45 50 dB GT 47 39.8 48 49 41.8 dB Transmitting amplification RGT = 12 kW RGT = 27 kW Frequency response IL ³ 14 mA, f = 300 to 3400 Hz DGT ±0.5 dB Gain change with current Pin 20 open (AGA), IL = 14 to 100 mA DGT ±0.5 dB Gain deviation Tamb = -10 to +60°C DGT ±0.5 dB CMRR of microphone amplifier CMRR 60 80 45 50 75 Input resistance of MIC amplifier RGT = 12 kW RGT = 27 kW Ri Distortion at line IL > 14 mA VL = 700 mVrms dt Maximum output voltage IL > 19 mA, d < 5% Vmic = 25 mV CTXA = 1 µF Noise at line psophometrically weighted IL > 14 mA GT = 48 dB 10 VLmax no 1.8 dB 110 kW 2 % 3 4.2 dBm -80 -72 dBmp U4089B-M 4570A–CORD–04/03 U4089B-M Electrical Characteristics (Continued) f = 1 kHz, 0 dBm = 775 mVrms, IM = 0.3 mA, IMP = 2 mA, RDC = 130 kW, Tamb = 25°C, RGSA = 560 kW, Zear = 68 nF + 100 W, ZM = 68 nF, Pin 20 open, VMUTX = GND, unless otherwise specified. Parameters Test Conditions Anti-clipping attack time release time CTXA = 1 µF each 3 dB overdrive Pin Symbol Min. Typ. Max. 0.5 9 Gain at low operating current IL = 10 mA IMP = 1 mA RDC = 68 kW Vmic = 1 mV IM = 300 µA GT Distortion at low operating current IL = 10 mA IM = 300 µA IMP = 1 mA RDC = 68 kW Vmic = 10 mV dt Line-loss compensation IL = 100 mA, RAGA = 20 kW DGTI -6.4 -5.8 Mute suppression, MIC muted (microphone preamplifier) IL ³ 14 mA Mutx = open GTM 60 80 40 Unit ms ms 42.5 dB 5 % -5.2 dB dB Receiving Amplifier, IL = 14 mA, RGR = 62 kW, Unless Otherwise Specified, VGEN = 300 mV Adjustment range of receiving gain IL ³ 14 mA, single-ended GR Receiving amplification RGR = 62 kW RGR = 22 kW GR Amplification of DTMF signal from DTMF IN to RECO IL ³ 14 mA VMUTX = VMP GRM Frequency response IL > 14 mA, f = 300 Hz to 3400 Hz Gain change with current Gain deviation Ear protection -8 +2 dB -7.75 -7 1.5 -6.25 1 4 7 dB DGRF ±0.5 dB IL = 14 to 100 mA DGR ±0.5 dB Tamb = -10 to +60°C DGR ±0.5 dB IL ³ 14 mA VGEN = 11 Vrms EP 1.1 Vrms MUTE suppression DTMF operation IL ³ 14 mA VMUTX = VMP DGR Output voltage d £ 2% dB 60 dB IL = 14 mA Zear = 68 nF 0.5 Vrms Maximum output current d £ 2% Zear = 100 W 4 mA (peak) Receiving noise psophometrically weighted Zear = 68 nF + 100 W IL ³ 14 mA ni Output resistance Output against GND Ro Line-loss compensation RAGA = 20 kW, IL = 100 mA AC impedance -80 -77 dBmp 10 W DGRI -7.0 -6.0 -5.0 dB Zimp 840 900 960 W 11 4570A–CORD–04/03 Electrical Characteristics (Continued) f = 1 kHz, 0 dBm = 775 mVrms, IM = 0.3 mA, IMP = 2 mA, RDC = 130 kW, Tamb = 25°C, RGSA = 560 kW, Zear = 68 nF + 100 W, ZM = 68 nF, Pin 20 open, VMUTX = GND, unless otherwise specified. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Gain at low operating current IL = 10 mA IMP = 1 mA IM = 300 µA VGEN = 560 mV RDC = 68 kW GR -8 -7 -6 dB Distortion at low operating current IL = 10 mA IMP = 1 mA VGEN = 560 mV RDC = 68 kW dR 5 % ILmin 15 mA 22 kW 37.5 dB dB Speaker Amplifier Minimum line current for operation No AC signal Input resistance 24 14 Gain from SAI to SAO VSAI = 3 mV, IL = 15 mA, RGSA = 560 kW RGSA = 20 kW Output power Load resistance RL = 50 W, d < 5% VSAI = 20 mV IL = 15 mA IL = 20 mA PSA PSA Output noise (input SAI open) psopho-metrically weighted IL > 15 mA nSA 200 µVpsoph Gain deviation IL = 15 mA Tamb = -10 to +60°C DGSA ±1 dB Mute suppression IL = 15 mA, VL = 0 dBm, VSAI = 4 mV Pin 23 open VSAO -60 dBm Gain change with current IL = 15 to 100 mA DGSA ±1 dB Resistor for turning off speaker amplifier IL = 15 to 100 mA RGSA 2 MW Gain change with frequency IL = 15 mA f = 300 to 3400 Hz DGSA ±0.5 dB Attack time of anti-clipping 20 dB over drive Release time of anti-clipping GSA 35.5 36.5 -3 3 7 20 0.8 1.3 mW mW tr 5 ms tf 80 ms DTMF Amplifier Test Conditions: IMP = 2 mA, IM = 0.3 mA, VMUTX = VMP Adjustment range of DTMF gain IL = 15 mA Mute active GD 40 DTMF amplification IL = 15 mA, VDTMF = 8 mV Mute active: MUTX = VMP GD 40.7 Gain deviaton IL = 15 mA Tamb = -10 to +60°C GD 12 41.7 50 dB 42.7 dB ±0.5 dB U4089B-M 4570A–CORD–04/03 U4089B-M Electrical Characteristics (Continued) f = 1 kHz, 0 dBm = 775 mVrms, IM = 0.3 mA, IMP = 2 mA, RDC = 130 kW, Tamb = 25°C, RGSA = 560 kW, Zear = 68 nF + 100 W, ZM = 68 nF, Pin 20 open, VMUTX = GND, unless otherwise specified. Parameters Test Conditions Input resistance Pin Symbol Min. Typ. Max. Unit RGT = 27 kW, RGT = 15 kW Ri 60 26 180 70 300 130 kW Distortion of DTMF signal IL ³ 15 mA VL = 0 dBm dD 2 % Gain deviation with current IL = 15 to 100 mA DGD ±0.5 dB 50 dB AFS Acousting Feedback Suppression Range of attenuation IL ³ 15 mA Attenuation of transmit gain IL ³ 15 mA, IINLDT = 0 µA RATAFS = 30 kW IINLDR = 10 µA DGT 45 dB Attenuation of speaker amplifier IL ³ 15 mA IINLDP = 0 µ RATAFS = 30 kW IINLDR = 10 µ DGSA 50 dB AFS disable IL ³ 15 mA VATAFS 1.5 0 V Supply Voltages, Vmic = 25 mV, Tamb = -10 to +60°C VMP IL = 14 mA, RDC = 68 kW IMP = 2 mA VMP 3.1 VM IL ³ 14 mA, IM = 300 µA RDC = 130 kW VM 1.4 VB IB = +20 mA, IL = 0 mA VB VMUTX = VMP VMUTX = GND IMUTX IMUTX Input high VMUTX Input low VMUTX 3.3 3.5 V 3.3 V 7 7.6 V +20 -20 +30 -30 µA µA MUTX Input (see Figure 20) Input current Input voltage VMP 0.3 V V 0.3 V 13 4570A–CORD–04/03 U4089B-M Control MUTX 0 MIC 1/2 transmit enabled receive enable AFS = on AGA = on TXACL = on Z DTMF transmit enabled receive enable AFS = on AGA = on TXACL = on 1 DTMF transmit enabled DTMF to receive enable AFS = off AGA = off TXACL = off IMPSEL MODE Speech For answering machine DTMF dialling MODE 0 Line impedance = 600 W TXA = on ES = off Speech 0 to Z Line impedance = 600 W TXA = off ES = on Transmit mute 1 to Z Line impedance = 900 W TXA = off ES = on Transmit mute 1 Line impedance = 900 W TXA = on ES = off Speech Logic Level 0 = < (0.3 V) Z = > (1 V) < (VMP - 1 V) or (open input) 1 = > (VMP - 0.3 V) AFS = Acoustical feedback-suppression control AGA = Automatic gain adjustment TXACL = Transmit anti-clipping control ES = External supply 14 U4089B-M 4570A–CORD–04/03 U4089B-M Figure 12. Typical DC Characteristic Figure 13. Typical Adjustment Range of the Transmit Gain GT (dB) 15 4570A–CORD–04/03 Figure 14. Typical Adjustment Range of the Receive Gain Figure 15. Typical AGA Characteristic 16 U4089B-M 4570A–CORD–04/03 U4089B-M Figure 16. Typical Load Characteristic of VB for a Maximum (RDC = infinity) DC Characteristic and a 3-mW Loudspeaker Output Figure 17. Typical Load Characteristic of VB for a Medium DC Characteristic (RDC = 130 kW) and a 3-mW Loudspeaker Output 17 4570A–CORD–04/03 Figure 18. Typical Load Characteristic of VB for a Minimum DC Characteristic (RDC = 68 kW) and a 3-mW Loudspeaker Output 18 U4089B-M 4570A–CORD–04/03 U4089B-M Figure 19. DC Voltage Absolute 19 4570A–CORD–04/03 Figure 20. DC Voltage Current Test 20 U4089B-M 4570A–CORD–04/03 U4089B-M Figure 21. DC Ramps 21 4570A–CORD–04/03 Figure 22. AC Tests 22 U4089B-M 4570A–CORD–04/03 DTMF 4570A–CORD–04/03 C 26 C 27 R 16 R 17 Loud speaker LOGTX RECO R 22 R 23 VM R 24 HF-Mic C 23 R 25 R 29 R 30 C 25 R 14 C 14 C 15 C 16 C 17 C 18 C 21 Microphone R 18 R 15 C 24 R 26 VM 23 21 11 25 28 29 26 27 22 44 41 1 3 4 R 13 R1 32 R 12 C2 24 7 13 V 30 Earpiece 39 R2 C3 6 9 R4 C 28 R 11 40 R 10 U4089B R3 10 To pin 32 VM VL 8 VM VM R8 36 33 C8 C 11 R9 13 C5 C 12 C4 C 10 LOGTX 42 29 31 R6 R 21 BC177 VB Microcontroller Hook switch V MP Ring C7 Tip U4089B-M Figure 23. Application for Hands-free Operation 23 Table 1. Typical Values of External Components (see Figure 23) Name Value Name Value Name Value Name C2 4.7 nF C16 47 µF R3 >68 kW R16 Value 1 kW C3 10 µF C17 10 µF R4 10 kW R17 1.2 kW C4 220 µF C18 10 µF R6 62 kW R18 30 kW C5 47 µF C21 1 µF R8 22 kW R21 15 kW C7 1 µF C23 6.8 nF R9 330 kW R22 330 kW C8 100 µF C24 10 nF R10 3 kW R23 220 kW C10 150 nF C25 100 nF R11 62 kW R24 68 kW C11 68 nF C26 470 nF R12 30 kW R25 2 kW C12 33 nF C27 33 nF R13 62 kW R26 3.3 kW C14 100 nF C28 10 µF R14 120 kW R29 1 kW C15 1 µF R2 20 kW R15 47 kW R30 12 kW Ordering Information Extended Type Number Package Remarks U4089B-MFN SSO44 Tubes U4089B-MFNG3 SSO44 Taped and reeled Package Information 9.15 8.65 Package SSO44 Dimensions in mm 18.05 17.80 7.50 7.30 2.35 0.3 0.25 0.10 0.8 16.8 44 0.25 10.50 10.20 23 technical drawings according to DIN specifications 1 24 22 U4089B-M 4570A–CORD–04/03 Atmel Headquarters Atmel Operations Corporate Headquarters Memory 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL (852) 2721-9778 FAX (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan TEL (81) 3-3523-3551 FAX (81) 3-3523-7581 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France TEL (33) 2-40-18-18-18 FAX (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France TEL (33) 4-42-53-60-00 FAX (33) 4-42-53-60-01 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany TEL (49) 71-31-67-0 FAX (49) 71-31-67-2340 1150 East Cheyenne Mtn. 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The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. Atmel ® is the registered trademark of Atmel. Other terms and product names may be the trademarks of others. Printed on recycled paper. 4570A–CORD–04/03 xM