SP320 RCOUT1 61 DRA1 62 VCC 63 DRA3 64 GND 65 DRB3 66 R1IN 67 NC 68 R2IN 69 NC 70 RCA1 71 RCB1 72 GND 73 VCC 74 NC 75 NC 76 RCA3 77 RCB3 78 R2OUT 5Mbps Data Throughput +5V-Only, Single Supply Operation 3 Drivers, 3 Receivers – V.35 4 Drivers, 4 Receivers – RS-232 80-pin LQFP Surface Mount Packaging Pin Compatible with SP319 80 R1OUT • • • • • • 79 RCOUT3 Complete +5V-Only V.35 Interface with RS-232 (V.28) Control Lines 1 60 GND NC 2 59 DRB1 TS000 3 NC 58 T1OUT 4 57 NC NC 5 56 NC TTEN 6 RTEN 7 NC 8 ENV35 9 55 NC 54 T2OUT NC 11 53 NC SP320 NC 10 52 NC 51 T4OUT 50 NC NC 12 49 NC T1IN 13 48 NC DRIN1 14 47 T3OUT DRIN3 15 46 NC T2IN 16 45 NC T3IN 17 44 DRB2 NC 18 43 GND R3OUT 19 42 DRA2 NC 40 R4IN 39 RCB2 38 RCA2 37 NC 36 R3IN 35 GND 34 VCC 33 VSS 32 GND 29 C1– 30 C2– 31 VDD 27 C2+ 28 VCC 25 C1+ 26 T4IN 24 STEN 23 DRIN2 22 41 VCC ROUT4 21 RCOUT2 20 Note: NC (No Connection) pins should be left floating. Internal signals may be present. description The SP320 is a complete V.35 interface transceiver offering 3 drivers and 3 receivers of V.35, and 4 drivers and 4 receivers of RS-232 (V.28). An Exar patented charge pump allows +5V only low power operation. RS-232 drivers and receivers are specified to operate at 120kbps, all V.35 drivers and receivers operate up to 5Mbps. +5V + 26 0.1µF 0.1µF + +5V 25, 33, 41, 62, 73 C1+ 30 C128 C2+ 31 VCC VDD SP320 Vcc 100Ω Vcc 400kΩ Vcc 100Ω R1IN 66 Vcc 5kΩ Vcc 5kΩ Vcc 5kΩ R4OUT 21 47 T3OUT 51 T4OUT 42 DRA2 5kΩ Vcc RCA3 76 RCOUT3 79 54 T2OUT 22 DRIN2 400kΩ R4IN 39 58 T1OUT 24 T4IN 400kΩ R3IN 35 R3OUT 19 59 DRB1 13 T1IN 17 T3IN 400kΩ R2IN 68 61 DRA1 16 T2IN 400kΩ RCB2 38 R2OUT 78 14 DRIN1 400kΩ RCB1 71 RCA2 37 R1OUT 80 0.1µF 3 TS000 9 ENV35 RCOUT2 20 + 0.1µF C2- RCA1 70 RCOUT 1 VSS + 27 32 400kΩ 44 DRB2 23 STEN 15 DRIN3 63 DRA3 100Ω 65 DRB3 6 TTEN RTEN 7 RCB3 77 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCC.....................................................................................................+7V Input Voltages Logic...................................................-0.3V to (VCC+0.5V) Drivers................................................-0.3V to (VCC+0.5V) Receivers...............................................±30V at ≤100mA Output Voltages Logic...................................................-0.3V to (VCC+0.5V) Drivers.......................................................................±14V Receivers............................................-0.3V to (VCC+0.5V) Storage Temperature.......................................................-65˚C to +150 Power Dissipation.....................................................................1500mW Package Derating ØJC.......................................................................16 °C/W ØJA.......................................................................46 °C/W TMIN to TMAX and Vcc = 5V +/-5% unless otherwise noted. PARAMETER MIN. TYP. ELECTRICAL CHARACTERISTICS MAX. UNITS 0.8 Volts CONDITIONS V.35 Driver TTL Input Level VIL TTL Input Level VIH 2.0 Volts Voltage Outputs Differential Outputs ±0.44 ±0.55 ±0.66 Volts RL = 100Ω from A to B Source Impedance 50 100 150 Ohms Short Circuit Impedance 135 150 165 Ohms Measured from A=B to GND, VOUT = -2V to +2V Voltage Output Offset -0.6 +0.6 Volts VOFFSET = (|VA| + |VB|)/ 2 AC Characteristics Transition Time Maximum Transmission Rate 40 ns 5 Rise/Fall time, 10% to 90% Mbps RL = 100Ω, VDIFF OUT = 0.55V+/-20% Propagation Delay tPHL 150 250 ns Measured from 1.5V of VIN to 50% of VOUT Propagation Delay tPLH 150 250 ns Measured from 1.5V of VIN to 50% of VOUT 0.4 Volts IOUT = -3.2mA Volts IOUT = 1.0mA V.35 Receiver TTL Output levels VOL VOH 2.4 Receiver Inputs Differential Input Threshold +0.3 Volts Input Impedance -0.3 90 100 110 Ohms Short circuit Impedance 135 150 165 Ohms Measured from A=B to GND, VIN = -2V to +2V Mbps VIN = +/-0.55V +/-20% AC Characteristics Maximum Transmission Rate 5 Propagation Delay tPHL 150 250 ns Measured from 50% of VIN to 1.5V of ROUT Propagation Delay tPLH 150 250 ns Measured from 50% of VIN to 1.5V of ROUT Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 ELECTRICAL CHARACTERISTICS TMIN to TMAX and Vcc = 5V +/-5% unless otherwise noted. PARAMETER MIN. TYP. MAX. UNITS 0.8 Volts CONDITIONS RS-232 DRIVER TTL Input Level VIL TTL Input Level VIH 2.0 Volts Voltage Outputs High Level Output +5.0 +15.0 Volts RL = 3kΩ to GND Low Level Output -15.0 -5.0 Volts RL = 3kΩ to GND Open Circuit Voltage -15.0 +15.0 Volts RL = ∞ Short Circuit Current -100 +100 mA Power Off Impedance 300 Ohms RL = GND Vcc = 0V: VOUT = +/-2V AC Characteristics Slew Rate Maximum Transmission Rate 30 120 Transition Time V/µs RL = 3kΩ, CL = 50pF; From +3V to -3V or -3V to +3V, TA = 25°C, Vcc = +5V kbps RL = 3kΩ, CL = 2500pF 1.56 µs Rise/fall time between +/-3V RL = 3kΩ, CL = 2500pF Propagation Delay tPHL 2 8 µs RL = 3kΩ, CL = 2500pF; from 1.5V of TIN to 50% of VOUT Propagation Delay tPLH 2 8 µs RL = 3kΩ, CL = 2500pF; from 1.5V of TIN to 50% of VOUT 0.4 Volts RS-232 RECEIVER TTL Output level Low VOL TTL Output level High VOH 2.4 Volts Receiver Input Input Voltage Range -15 High Threshold 1.7 Low Threshold 0.8 1.2 Hysteresis 0.2 0.5 +15 Volts 3.0 Volts Volts 1.0 Volts +2.0V Volts 5 7 kOhms Propagation Delay tPHL 0.1 1 µs Measured from 50% of RIN to 1.5V of ROUT Propagation Delay tPLH 0.1 1 µs Measured from 50% of RIN to 1.5V of ROUT No Load Vcc Supply Current 35 70 mA No Load; Vcc = 5.0V; TA = 25°C Full Load Vcc Supply Current 60 mA RS-232 Drivers RL = 3kΩ to GND; DC Input V.35 Drivers RL = 100Ω from A to B; DC input Shutdown Current 1.5 mA TS000 = ENV35 = 0V Receiver Input Circuit Bias Input Impedance 3 Vcc = 5V; TA = 25°C VIN = +/-15V AC Characteristics Maximum Transmission Rate 120 kbps Power Requirements Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 THEORY OF OPERATION ±10Ω. The SP320 is a single chip +5V-only serial transceiver that supports all the signals necessary to implement a full V.35 interface. Three V.35 drivers and three V.35 receivers make up the clock and data signals. Four RS-232 (V.28) drivers and four RS-232 (V.28) receivers are used for control line signals for the interface. 2. Resistance to ground of 150Ω ±15Ω, measured from short-circuited terminals. All of the V.35 receivers can operate at data rates as high as 5Mbps. The sensitivity of the V.35 receiver inputs is ±300mV. RS-232 (V.28) Drivers The RS-232 drivers are inverting transmitters, which accept either TTL or CMOS inputs and output the RS-232 signals with an inverted sense relative to the input logic levels. Typically, the RS-232 output voltage swing is ±9V with no load, and ±5V minimum with full load. The transmitter outputs are protected against infinite short-circuits to ground without degradation in reliability. V.35 Drivers The V.35 drivers are +5V-only, low power voltage output transmitters. The drivers do not require any external resistor networks, and will meet the following requirements: 1. Source impedance in the range of 50Ω to 150Ω. 2. Resistance between short-circuited terminals and ground is 150Ω ±15Ω. In the power off state, the output impedance of the RS-232 drivers will be greater than 300Ω over a ±2V range. Should the input of a driver be left open, an internal 400kΩ pullup resistor to VCC forces the input high, thus committing the output to a low state. The slew rate of the transmitter output is internally limited to a maximum of 30V/µs in order to meet the EIA standards. The RS-232 drivers are rated for 120kbps data rates. 3. When terminated with a 100Ω resistive load the terminal to terminal voltage will be 0.55 Volts ±20% so that the A terminal is positive to the B terminal when binary 0 is transmitted, and the conditions are reversed to transmit binary 1. 4. The arithmetic mean of the voltage of the A terminal with respect to ground, and the B terminal with respect to ground will not exceed 0.6 Volts when terminated as in 3 above. RS-232 (V.28) Receivers The RS-232 receivers convert RS-232 input signals to inverted TTL signals. Each of the four receivers features 500mV of hysteresis margin to minimize the effects of noisy transmission lines. The inputs also have a 5kΩ resistor to ground; in an open circuit situation the input of the receiver will be forced low, committing the output to a logic high state. The input resistance will maintain 3kΩ-7kΩ over a ±15V range. The maximum operating voltage range for the receiver is ±30V, under these conditions the input current to the receiver must be limited to less than 100mA. The RS-232 receivers can operate to beyond 120kbps. The V.35 drivers can operate at data rates as high as 5Mbps. The driver outputs are protected against short-circuits between the A and B outputs and short circuits to ground. Two of the V.35 drivers, DRIN2 and DRIN3 are equipped with enable control lines. When the enable pins are high the driver outputs are disabled, the output impedance of a disabled driver will nominally be 300Ω. When the enable pins are low, the drivers are active. V.35 Receivers The V.35 receivers are +5V only, low power differential receivers which meet the following requirements: CHARGE PUMP The charge pump is an Exar patented design (U.S. 5,306,954) and uses a unique approach compared to older less-efficient designs. The charge pump still requires four external 1. Input impedance in the range of 100Ω Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 Phase 4 -Vdd transfer- The fourth phase of the clock connects the negative terminal of C2 to ground and transfers the generated +10V across C2 to C4, the Vdd storage capacitor. Again, simultaneously with this, the positive side of capacitor C1 is switched to +5V and the negative side is connected to ground, and the cycle begins again. +10V a) C2+ GND GND b) C2– –10V Since both V+ and V- are separately generated from Vcc in a no load condition, V+and V- will be symmetrical. Older charge pump approaches that generate V- from V+ will show a decrease in the magnitude of V- compared to V+ due to the inherent inefficiencies in the design. Figure 1. Charge Pump Waveforms capacitors, but uses a four-phase voltage shifting technique to attain symmetrical ±10V power supplies. The capacitors can be as low as 0.1µF with a 16 Volt rating. Polarized or non-polarized capacitors can be used. The clock rate for the charge pump typically operates at 15kHz. The external capacitors must be 0.1µF with a 16V breakdown rating. Figure 1(a) shows the waveform found on the positive side of capacitor C2, and Figure 1(b) shows the negative side of capacitor C2. There is a free-running oscillator that controls the four phases of the voltage shifting. A description of each phase follows. Shutdown Mode The SP320 can be put into a low power shutdown mode by bringing both TS000 (pin 3) and ENV35 (pin 9) low. In shutdown mode, the SP320 will draw less than 2mA of supply current. For normal operation, both pins should be connected to +5V. Phase 1 -Vss charge storage- During this phase of the clock cycle, the positive side of capactors C1 and C2 are initially charged to +5V. C1+ is then switched to ground and the charge in C1- is transferred to C2-. Since C2+ is connected to +5V, the voltage potential across capacitor C2 is now 10V. External Power Supplies For applications that do not require +5V only, external supplies can be applied at the V+ and V- pins. The value of the external supply voltages must be no greater than ±10V. The current drain from the ±10V supplies is used for the RS-232 drivers. For the RS-232 driver the current requirement will be 3.5mA per driver. It is critical the external power supplies provide a power supply sequence of : +10V, +5V, and then -10V. Phase 2 -Vss transfer- Phase two of the clock connects the negative terminal of C2 to the Vss storage capacitor and the positive terminal of C2 to ground, and transfers the generated -10V to C3. Simultaneously, the positive side of capacitor C1 is switched to +5V and the negative side is connected to ground. Applications Information The SP320 is a single chip device that can implement a complete V.35 interface. Three (3) V.35 drivers and three (3) V.35 receivers are used for clock and data signals and four (4) RS-232 (V.28) drivers and four (4) RS-232 (V.28) receivers can be used for the control signals of the interface. The following examples show the SP320 configured in either a DTE or DCE application. Phase 3 -Vdd charge storage- The third phase of the clock is identical to the first phase- the transferred charge in C1 produces -5V in the negative terminal of C1, which is applied to the negative side of capacitor C2. Since C2+ is at +5V, the voltage potential across C2 is +10V. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 VCC = +5V VCC = +5V C4 +10V C1 + – C2 + – + – VDD Storage Capacitor – + VSS Storage Capacitor C1 C3 – VDD Storage Capacitor – + VSS Storage Capacitor C3 –5V VCC = +5V C4 – – + Figure 3. Charge Pump Phase 2 VCC = +5V C1 + C2 – –5V Figure 2. Charge Pump Phase 1 + C4 +5V + C2 + + – – + – C1 VSS Storage Capacitor C3 –10V + 50Ω 1µF T = V.35 1µF DX T DX T RX T T RX T U TXC (114) AA W Y RXC (115) V A GND (102) RX T RX T DX T DX T DX T R CABLE SHIELD T B VCC2 A 1µF 1µF 1µF 1µF OPTIONAL SIGNALS DX DX 1µF 1µF 1µF RS-232 RX 1µF X V TXD (104) R B VCC1 RX VSS Storage Capacitor C3 P S Y T RX VVDD ge Capacito r Storage Capacitor DDStora VCC2 5V SCTE (113) W X RX TXD (103) S AA RX – V.35 U DX – + 1µF 1µF 1µF P DX – + –5V 125Ω 50Ω 1µF + Figure 5. Charge Pump Phase 4 VCC1 5V 1µF C2 – –5V Figure 4. Charge Pump Phase 3 1µF C4 +5V VDD Storage Capacitor RS-232 H C E D F NN N L DTR (108) RTS (105) DSR (107) CTS (106) DCD (109) TM (142) RDL (140) LLB (141) ISO 2593 34-PIN DTE/DCE INTERFACE CONNECTOR H C E D F NN N L RX RX DX DX DX DX RX RX ISO 2593 34-PIN DTE/DCE INTERFACE CONNECTOR Figure 6. A Competitor’s Typical V.35 Solution Using Six Components. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 +5V 0.1µF 28 C2+ 0.1µF 31 C2- 25 V CC +5V 1N5819 0.1µF 27 26 30 V DD C1+ C1- 32 V SS 0.1µF 28 0.1µF C2+ SP320 (DTE) DR IN 1 14 15 P S TxC (113) U DR IN 3 U W W A 79 RC OUT2 20 1 Y RxC (115) X V RxD (104) R DTR (108) RTS (105) RL (140) N LL (141) L R1 OUT 80 DSR (107) E N R4 OUT 21 L R3 OUT 19 F R4 OUT NN E CTS (106) D R3 OUT 19 D DCD (109) F TM (142) NN 21 B 29, 34, 43, 60, 64, 72 R2 OUT R1 OUT 80 24 78 DR IN1 14 C 17 R2 OUT DR IN 3 15 78 C T4 IN DR IN 2 22 H 13 T3 IN RC OUT2 20 T R 16 T1 IN RC OUT1 1 X V H T2 IN 27 26 30 V CC V DD C1+ C1- 32 0.1µF VSS RC OUT3 AA AA T RC OUT1 25 79 TxCC (114) Y RC OUT3 C2- A DR IN 2 22 31 1N5819 0.1µF SP320 (DCE) TxD (103) P S 0.1µF 16 T2 IN T1 IN 13 17 24 T3 IN T4 IN B ISO2593 34-PIN DCE INTERFACE CONNECTOR ISO2593 34-PIN DTE INTERFACE CONNECTOR 29, 34, 43, 60, 64, 72 Figure 7. Typical DTE-DCE V.35 Connection with the SP320 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 ISO-2593 connector pin out Signal Ground Clear to Send Data Carrier Detect Ring Indicator Local Loopback Remote Loopback Receive Data (A) Receive Data (B) Receive Timing (A) Receive Timing (B) Unassigned--- Unassigned--- Unassigned--- Unassigned--- Unassigned--- Unassigned--- Test Mode A C E H K M P S U W Y AA CC EE HH KK MM B D F J L N R T V X Z BB DD FF JJ LL NN Typical DCE V.35 interface +5V 0.1 µF + 26 25, 33, 41, 62, 73 C1+ 30 + 0.1 µF +5V C128 C2+ VCC SP320 103(B) 113(A) RCOUT 1 RCOUT2 20 100Ω RTS R1OUT 80 DTR R2OUT 78 108 400kΩ Vcc 5kΩ Vcc 5kΩ 400kΩ Vcc RLPBK 141 5kΩ LLPBK R4OUT 21 SPARE RCOUT3 79 5kΩ Vcc RCA3 76 400kΩ 100Ω RTEN 7 RCB3 77 107 DCD 47 T3OUT 109 RI 51 T4OUT 22 DRIN2 400kΩ R4IN 39 SPARE SPARE R3OUT 19 106 DSR 54 T2OUT 24 T4IN R3IN 35 104(B) CTS 58 T1OUT 17 T3IN 400kΩ 104(A) 59 DRB1 16 T2IN 400kΩ RXD 61 DRA1 13 T1IN Vcc 100Ω R2IN 68 140 0.1 µF + 14 DRIN1 Vcc R1IN 66 105 0.1 µF Vcc RCB2 38 113(B) 32 400KΩ RCB1 71 RCA2 37 TXC VSS + 27 3 TS000 RCA1 70 TXD VDD 31 C2- 9 ENV35 103(A) Chasis Ground Request to Send DCE Ready (DSR) DTE Ready (DTR) Unassigned--- Unassigned--- Transmitted Data (A) Transmitted Data (B) Terminal Timing (A) } 113(A) Terminal Timing (B) } 113(B) Transmit Timing (A) } 114(A) Transmit Timing (B) } 114(B) Unassigned--- Unassigned--- Unassigned--- Unassigned--- Unassigned--- 125 TXCC 42 DRA2 114(A) 44 DRB2 23 STEN 114(B) 15 DRIN3 RXC 63 DRA3 115(A) 65 DRB3 115(B) 6 TTEN 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 ISO-2593 connector pin out Signal Ground Clear to Send Data Carrier Detect Ring Indicator Local Loopback Remote Loopback Receive Data (A) Receive Data (B) Receive Timing (A) Receive Timing (B) Unassigned--- Unassigned--- Unassigned--- Unassigned--- Unassigned--- Unassigned--- Test Mode A C E H K M P S U W Y AA CC EE HH KK MM B D F J L N R T V X Z BB DD FF JJ LL NN Typical DTE V.35 interface +5V + 26 0.1µF 0.1µF 25, 33, 41, 62, 73 C1+ 30 + C128 C2+ VCC VDD SP320 TXCC 114(B) RCB2 38 106 R1IN 66 R1OUT 80 107 DSR 109 100Ω 400kΩ Vcc 100Ω Vcc 5kΩ Vcc 5kΩ Vcc 125 RXC Vcc RCA3 76 RCOUT3 79 115(B) 5kΩ 400kΩ 100Ω RTEN 7 RCB3 77 108 RLPBK 47 T3OUT 140 LLPBK 51 T4OUT 22 DRIN2 400kΩ R4IN 39 R4OUT 21 115(A) 5kΩ 105 DTR 54 T2OUT 24 T4IN 400kΩ 103(B) RTS 58 T1OUT 17 T3IN 400kΩ 103(A) 59 DRB1 16 T2IN 400kΩ TXD 61 DRA1 13 T1IN R3IN 35 R3OUT 19 RI 0.1µF 14 DRIN1 Vcc R2IN 68 R2OUT 78 DCD + 0.1µF Vcc RCB1 71 RCA2 37 RCOUT2 20 CTS 32 400kΩ RCA1 70 RCOUT 1 104(B) 114(A) + 31 C2- 9 ENV35 RXD VSS 27 3 TS000 +5V 104(A) Chasis Ground Request to Send DCE Ready (DSR) DTE Ready (DTR) Unassigned--- Unassigned--- Transmitted Data (A) Transmitted Data (B) Terminal Timing (A) } 113(A) Terminal Timing (B) } 113(B) Transmit Timing (A) } 114(A) Transmit Timing (B) } 114(B) Unassigned--- Unassigned--- Unassigned--- Unassigned--- Unassigned--- 141 TXCT 42 DRA2 113(A) 44 DRB2 23 STEN 113(B) 15 DRIN3 SPARE 63 DRA3 SPARE 65 DRB3 SPARE 6 TTEN 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com SP320_100_092208 61 DRA1 62 VCC 63 DRA3 64 GND 65 DRB3 66 R1IN 67 NC 68 R2IN 69 NC 70 RCA1 71 RCB1 72 GND 73 VCC 74 NC 75 NC 76 RCA3 77 RCB3 78 R2OUT 79 RCOUT3 80 R1OUT Pin configuration RCOUT1 1 60 GND NC 2 59 DRB1 TS000 3 58 T1OUT NC 4 57 NC NC 5 56 NC TTEN 6 55 NC RTEN 7 54 T2OUT NC 8 53 NC SP320 ENV35 9 NC 10 NC 11 52 NC 51 T4OUT 50 NC NC 12 49 NC T1IN 13 48 NC DRIN1 14 47 T3OUT DRIN3 15 46 NC T2IN 16 45 NC T3IN 17 44 DRB2 NC 18 43 GND R3OUT 19 42 DRA2 NC 40 R4IN 39 RCB2 38 RCA2 37 NC 36 R3IN 35 GND 34 VCC 33 VSS 32 2 GND 29 C1– 30 C – 31 VDD 27 C2+ 28 VCC 25 C1+ 26 T4IN 24 STEN 23 DRIN2 22 41 VCC ROUT4 21 RCOUT2 20 Note: NC (No Connection) pins should be left floating. Internal signals may be present. Typical application circuit +5V + 26 0.1µF 0.1µF + +5V 25, 33, 41, 62, 73 C1+ 30 C128 C2+ 31 VCC VDD SP320 100Ω 14 DRIN1 Vcc 400kΩ Vcc 100Ω R1IN 66 Vcc 5kΩ Vcc 5kΩ Vcc 5kΩ R4OUT 21 47 T3OUT 51 T4OUT 42 DRA2 5kΩ Vcc RCA3 76 RCOUT3 79 54 T2OUT 22 DRIN2 400kΩ R4IN 39 58 T1OUT 24 T4IN 400kΩ R3IN 35 R3OUT 19 59 DRB1 13 T1IN 17 T3IN 400kΩ R2IN 68 61 DRA1 16 T2IN 400kΩ RCB2 38 R2OUT 78 0.1µF Vcc 400kΩ RCB1 71 RCA2 37 R1OUT 80 + 3 TS000 9 ENV35 RCOUT2 20 32 0.1µF C2- RCA1 70 RCOUT 1 VSS + 27 400kΩ 44 DRB2 23 STEN 15 DRIN3 63 DRA3 100Ω 65 DRB3 6 TTEN RTEN 7 RCB3 77 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com 10 SP320_100_092208 Package: 80 Pin LQFP Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com 11 SP320_100_092208 ORDERING INFORMATION Model Temperature Range Package Types SP320ACM-L................................................. 0˚C to +70˚C.........................80-pin JEDEC (BE-2 Outline) LQFP DATE REVSION DESCRIPTION 03-23-07 Rev B Legacy Sipex Data Sheet 9-22-08 1.0.0 SP320 is no longer available in MQFP package per PCN 07-1102-06a. Update package drawing outline to show LQFP. Change to Exar data sheet format, update ordering information and changed revision to 1.0.0. Notice EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user's specific application. While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writting, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances. Copyright 2008 EXAR Corporation Datasheet September 2008 Send your Interface technical inquiry with technical details to: [email protected] Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7017 • www.exar.com 12 SP320_100_092208