SP320

sp320 complete +5V-only V.35 interface with rs-232 (V.28) control Lines • • • • • • 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 SP39 79 RCOUT3 80 R1OUT 78 R2OUT 77 RCB3 76 RCA3 71 RCB1 70 RCA1 65 DRB3 63 DRA3 RCOUT1 1 61 DRA1 68 R2IN 66 R1IN 72 GND 64 GND 73 VCC 62 VCC 75 NC 74 NC 69 NC 67 NC 60 GND 59 DRB1 58 T1OUT 57 NC 56 NC 55 NC 54 T2OUT 53 NC 52 NC 51 T4OUT 50 NC 49 NC 48 NC 47 T3OUT 46 NC 45 NC 44 DRB2 43 GND 42 DRA2 41 VCC NC 2 TS000 3 NC TTEN RTEN NC ENV35 4 6 7 8 9 NC 5 NC 10 NC 11 NC 12 T1IN 13 DRIN1 14 DRIN3 15 T2IN 16 T3IN 17 NC 18 R3OUT 19 RCOUT2 20 SP320 STEN 23 T4IN 24 VCC 25 C1+ 26 VDD 27 C2+ 28 GND 29 C1– 30 C2– 31 VSS 32 VCC 33 ROUT4 21 GND 34 RCA2 37 DRIN2 22 RCB2 38 R3IN 35 R4IN 39 NC 36 description Note: NC (No Connection) pins should be left floating. Internal signals may be present. 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 + 0.1µF + 26 25, 33, 41, 62, 73 C1+ VCC VDD 27 32 + 0.1µF 30 C128 C2+ 31 C2- SP320 0.1µF VSS + 0.1µF +5V 3 TS000 9 ENV35 Vcc 400kΩ 100Ω Vcc 400kΩ Vcc 400kΩ Vcc 5kΩ 400kΩ Vcc 5kΩ 400kΩ RCA1 70 RCOUT 1 RCB1 71 RCA2 37 RCOUT2 20 RCB2 38 R1IN 66 R1OUT 80 R2IN 68 R2OUT 78 R3IN 35 100Ω 14 DRIN1 61 DRA1 59 DRB1 13 T1IN 58 T1OUT 16 T2IN 54 T2OUT 17 T3IN 47 T3OUT 24 T4IN Vcc 51 T4OUT 22 DRIN2 42 DRA2 44 DRB2 23 STEN 15 DRIN3 63 DRA3 65 DRB3 6 TTEN R3OUT 19 R4IN 39 R4OUT 21 RCA3 76 RCOUT3 79 RTEN 7 RCB3 77 5kΩ 400kΩ 5kΩ Vcc 400kΩ 100Ω 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com SP320_00_092208  NC 40 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.......................................................................±4V Receivers............................................-0.3V to (VCC+0.5V) Storage Temperature.......................................................-65˚C to +150 Power Dissipation.....................................................................500mW Package Derating ØJC.......................................................................6 °C/W ØJA.......................................................................46 °C/W TMIN to TMAX and Vcc = 5V +/-5% unless otherwise noted. pArAMeter V.35 driVer TTL Input Level VIL TTL Input Level VIH Voltage Outputs Differential Outputs Source Impedance Short Circuit Impedance Voltage Output Offset AC Characteristics Transition Time Maximum Transmission Rate Propagation Delay tPHL Propagation Delay tPLH V.35 receiVer TTL Output levels VOL VOH Receiver Inputs Differential Input Threshold Input Impedance Short circuit Impedance AC Characteristics Maximum Transmission Rate Propagation Delay tPHL Propagation Delay tPLH 5 50 50 250 250 -0.3 90 35 00 50 +0.3 0 65 2.4 0.4 5 50 50 250 250 40 ±0.44 50 35 -0.6 ±0.55 00 50 ±0.66 50 65 +0.6 2.0 0.8 Min. tYp. MAX. eLectricAL cHArActeristics Units Volts Volts Volts Ohms Ohms Volts ns Mbps ns ns Measured from A=B to GND, VOUT = -2V to +2V VOFFSET = (|VA| + |VB|)/ 2 Rise/Fall time, 0% to 90% RL = 100Ω, VDIFF OUT = 0.55V+/-20% Measured from .5V of VIN to 50% of VOUT Measured from .5V of VIN to 50% of VOUT RL = 100Ω from A to B conditions Volts Volts Volts Ohms Ohms IOUT = -3.2mA IOUT = .0mA Measured from A=B to GND, VIN = -2V to +2V VIN = +/-0.55V +/-20% Measured from 50% of VIN to .5V of ROUT Measured from 50% of VIN to .5V of ROUT SP320_00_092208 Mbps ns ns Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com 2 TMIN to TMAX and Vcc = 5V +/-5% unless otherwise noted. pArAMeter rs-232 driVer TTL Input Level VIL TTL Input Level VIH Voltage Outputs High Level Output Low Level Output Open Circuit Voltage Short Circuit Current Power Off Impedance AC Characteristics Slew Rate 30 +5.0 -5.0 -5.0 -00 300 +5.0 -5.0 +5.0 +00 2.0 0.8 Min. tYp. MAX. eLectricAL cHArActeristics Units Volts Volts Volts Volts Volts mA Ohms V/µs RL = 3kΩ to GND RL = 3kΩ to GND RL = ∞ RL = GND Vcc = 0V: VOUT = +/-2V RL = 3kΩ, CL = 50pF; From +3V to -3V or -3V to +3V, TA = 25°C, Vcc = +5V RL = 3kΩ, CL = 2500pF Rise/fall time between +/-3V RL = 3kΩ, CL = 2500pF RL = 3kΩ, CL = 2500pF; from .5V of TIN to 50% of VOUT RL = 3kΩ, CL = 2500pF; from .5V of TIN to 50% of VOUT conditions Maximum Transmission Rate Transition Time Propagation Delay tPHL Propagation Delay tPLH rs-232 receiVer TTL Output level Low VOL TTL Output level High VOH Receiver Input Input Voltage Range High Threshold Low Threshold Hysteresis Receiver Input Circuit Bias Input Impedance AC Characteristics Maximum Transmission Rate Propagation Delay tPHL Propagation Delay tPLH power reqUireMents No Load Vcc Supply Current Full Load Vcc Supply Current 20 .56 2 2 8 8 kbps µs µs µs 0.4 2.4 -5 .7 0.8 0.2 3 20 0. 0.   .2 0.5 5 .0 +2.0V 7 +5 3.0 Volts Volts Volts Volts Volts Volts Volts kOhms kbps µs µs Measured from 50% of RIN to .5V of ROUT Measured from 50% of RIN to .5V of ROUT No Load; Vcc = 5.0V; TA = 25°C RS-232 Drivers RL = 3kΩ to GND; DC Input V.35 Drivers RL = 100Ω from A to B; DC input TS000 = ENV35 = 0V SP320_00_092208 Vcc = 5V; TA = 25°C VIN = +/-5V 35 60 70 mA mA Shutdown Current .5 mA Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com 3 tHeorY oF operAtion 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. 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. 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 . 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. 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: 1. Input impedance in the range of 100Ω 4 ±10Ω. 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. 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 20kbps data rates. 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 00mA. The RS-232 receivers can operate to beyond 20kbps. 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 SP320_00_092208 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com +0V a) C2+ GND GND b) C2– –0V phase 4 -Vdd transfer- The fourth phase of the clock connects the negative terminal of C2 to ground and transfers the generated +0V across C2 to C4, the Vdd storage capacitor. Again, simultaneously with this, the positive side of capacitor C is switched to +5V and the negative side is connected to ground, and the cycle begins again. 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. The clock rate for the charge pump typically operates at 5kHz. The external capacitors must be 0.µF with a 6V breakdown rating. 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. 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 ±0V. The current drain from the ±0V 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 : +0V, +5V, and then -0V. 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. SP320_00_092208 Figure . Charge Pump Waveforms capacitors, but uses a four-phase voltage shifting technique to attain symmetrical ±0V power supplies. The capacitors can be as low as 0.µF with a 6 Volt rating. Polarized or non-polarized capacitors can be used. Figure (a) shows the waveform found on the positive side of capacitor C2, and Figure (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. phase 1 -Vss charge storage- During this phase of the clock cycle, the positive side of capactors C and C2 are initially charged to +5V. C+ is then switched to ground and the charge in C- is transferred to C2-. Since C2+ is connected to +5V, the voltage potential across capacitor C2 is now 0V. 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 -0V to C3. Simultaneously, the positive side of capacitor C is switched to +5V and the negative side is connected to ground. phase 3 -Vdd charge storage- The third phase of the clock is identical to the first phase- the transferred charge in C produces -5V in the negative terminal of C, which is applied to the negative side of capacitor C2. Since C2+ is at +5V, the voltage potential across C2 is +0V. 5 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com VCC = +5V VCC = +5V C4 +10V C1 + – C2 + – + – + VDD Storage Capacitor VSS Storage Capacitor +5V C1 + – – C2 + – + C4 – + VDD Storage Capacitor VSS Storage Capacitor – C3 –5V –5V C3 Figure 2. Charge Pump Phase  Figure 3. Charge Pump Phase 2 VCC = +5V VCC = +5V C4 C1 + – C2 + – + – + VDD Storage Capacitor VSS Storage Capacitor +5V C1 + – – C2 + – + C4 – + VDD Storage Capacitor VDD Storage Capacitor VSS Storage Capacitor – –10V C3 –5V –5V C3 Figure 4. Charge Pump Phase 3 1µF VCC1 5V 1µF T = 50Ω 1µF 50Ω Figure 5. Charge Pump Phase 4 125Ω 1µF 1µF VCC2 5V 1µF 1µF V.35 DX 1µF P T S U SCTE (113) TXD (103) P S U W TXC (114) AA Y RXC (115) X V TXD (104) T R T T T T T V.35 RX DX T W AA RX RX T Y X DX RX T V T DX RX T R DX B VCC1 1µF 1µF A GND (102) CABLE SHIELD B A VCC2 1µF 1µF 1µF 1µF 1µF 1µF RS-232 DX DX RX RX RX H C E D F NN N L DTR (108) RTS (105) DSR (107) CTS (106) DCD (109) TM (142) RDL (140) LLB (141) H C E D F NN N L RS-232 RX RX DX DX DX DX RX RX OPTIONAL SIGNALS RX DX DX ISO 2593 34-PIN DTE/DCE INTERFACE CONNECTOR 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 • (50) 668-707 • www.exar.com SP320_00_092208 6 +5V 0.1µF 28 C2+ +5V 1N5819 0.1µF 27 26 30 28 0.1µF 31 C2- 0.1µF 25 V CC 0.1µF 25 1N5819 0.1µF 27 26 30 31 C2- SP320 (DTE) DR IN 1 14 DR IN 3 15 DR IN 2 22 RC OUT3 79 RC OUT2 20 RC OUT1 1 T2 IN 16 T1 IN 13 T3 IN 17 T4 IN 24 R2 OUT V DD C1+ C1- 32 V SS 0.1µF C2+ V CC V DD C1+ C1- 32 0.1µF VSS P S U W A TxD (103) TxC (113) A SP320 (DCE) P S U W RC OUT1 1 RC OUT2 20 RC OUT3 79 Y AA X V T R H C N L E TxCC (114) RxC (115) RxD (104) DTR (108) RTS (105) RL (140) LL (141) DSR (107) CTS (106) DCD (109) TM (142) B B Y AA X V T R H DR IN 2 22 DR IN 3 15 DR IN1 14 R2 OUT 78 C R1 OUT 80 R4 OUT 21 R3 OUT 19 T2 IN N L E 78 16 R1 OUT 80 R3 OUT 19 R4 OUT D D T1 IN 13 T3 IN F NN F NN 17 21 24 T4 IN 29, 34, 43, 60, 64, 72 ISO2593 34-PIN DTE INTERFACE CONNECTOR ISO2593 34-PIN DCE 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 • (50) 668-707 • www.exar.com SP320_00_092208 7 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 B D F J L N R T V X Z BB DD FF JJ LL NN A C E H K M P S U W Y AA CC EE HH KK MM Chasis Ground Request to Send DCE Ready (DSR) DTE Ready (DTR) Unassigned--Unassigned--Transmitted Data (A) Transmitted Data (B) Terminal Timing (A) } 3(A) Terminal Timing (B) } 113(B) Transmit Timing (A) } 4(A) Transmit Timing (B) } 114(B) Unassigned--Unassigned--Unassigned--Unassigned--Unassigned--- typical dce V.35 interface +5V 0.1 µF + 26 30 25, 33, 41, 62, 73 C1+ VCC VDD VSS 27 32 + 0.1 µF + 0.1 µF C128 C2+ 31 C23 TS000 9 ENV35 SP320 0.1 µF + +5V Vcc 400KΩ 100Ω 400kΩ Vcc 400kΩ Vcc 5kΩ 400kΩ Vcc 5kΩ 400kΩ Vcc 103(A) TXD 103(B) 113(A) TXC 113(B) 105 RTS 108 DTR 140 RLPBK 141 LLPBK SPARE SPARE SPARE RCA1 70 RCOUT 1 RCB1 71 RCA2 37 RCOUT2 20 RCB2 38 R1IN 66 R1OUT 80 R2IN 68 R2OUT 78 R3IN 35 100Ω 14 DRIN1 61 DRA1 59 DRB1 13 T1IN 58 T1OUT 16 T2IN 54 T2OUT 17 T3IN 47 T3OUT 24 T4IN Vcc RXD 104(A) 104(B) CTS 106 DSR 107 DCD 109 RI 125 TXCC 114(A) 114(B) RXC 115(A) 115(B) 51 T4OUT 22 DRIN2 42 DRA2 44 DRB2 23 STEN 15 DRIN3 63 DRA3 65 DRB3 6 TTEN R3OUT 19 R4IN 39 R4OUT 21 RCA3 76 RCOUT3 79 RTEN 7 RCB3 77 5kΩ 400kΩ 5kΩ Vcc 400kΩ 100Ω 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com SP320_00_092208 8 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 B D F J L N R T V X Z BB DD FF JJ LL NN +5V A C E H K M P S U W Y AA CC EE HH KK MM Chasis Ground Request to Send DCE Ready (DSR) DTE Ready (DTR) Unassigned--Unassigned--Transmitted Data (A) Transmitted Data (B) Terminal Timing (A) } 3(A) Terminal Timing (B) } 113(B) Transmit Timing (A) } 4(A) Transmit Timing (B) } 114(B) Unassigned--Unassigned--Unassigned--Unassigned--Unassigned--- typical dte V.35 interface + 0.1µF + 26 30 25, 33, 41, 62, 73 C1+ VCC VDD 27 32 + + 0.1µF C128 C2+ 31 C23 TS000 9 ENV35 SP320 0.1µF VSS 0.1µF +5V Vcc 400kΩ 100Ω 400kΩ Vcc 400kΩ Vcc 104(A) RXD 104(B) 114(A) TXCC 114(B) 106 CTS 107 DSR 109 DCD 125 RI 115(A) RXC 115(B) RCA1 70 RCOUT 1 RCB1 71 RCA2 37 RCOUT2 20 RCB2 38 R1IN 66 R1OUT 80 R2IN 68 R2OUT 78 R3IN 35 5kΩ 5kΩ 100Ω 14 DRIN1 61 DRA1 59 DRB1 13 T1IN 58 T1OUT 16 T2IN Vcc TXD 103(A) 103(B) RTS 105 DTR 108 RLPBK 140 LLPBK 141 TXCT 113(A) 113(B) SPARE SPARE SPARE 54 T2OUT 17 T3IN 400kΩ Vcc 400kΩ 47 T3OUT 24 T4IN Vcc 51 T4OUT 22 DRIN2 42 DRA2 44 DRB2 23 STEN 15 DRIN3 63 DRA3 65 DRB3 6 TTEN R3OUT 19 R4IN 39 R4OUT 21 RCA3 76 RCOUT3 79 RTEN 7 RCB3 77 5kΩ 400kΩ 5kΩ Vcc 400kΩ 100Ω 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com SP320_00_092208 9 Pin configuration 79 RCOUT3 80 R1OUT 78 R2OUT 77 RCB3 76 RCA3 71 RCB1 70 RCA1 65 DRB3 63 DRA3 61 DRA1 68 R2IN 66 R1IN 72 GND 64 GND 73 VCC 62 VCC 75 NC 74 NC 69 NC 67 NC RCOUT1 1 NC 2 TS000 3 NC 4 NC 5 TTEN 6 RTEN 7 NC 8 ENV35 9 NC 10 NC 11 NC 12 T1IN 13 DRIN1 14 DRIN3 15 T2IN 16 T3IN 17 NC 18 R3OUT 19 RCOUT2 20 60 GND 59 DRB1 58 T1OUT 57 NC 56 NC 55 NC 54 T2OUT 53 NC 52 NC 51 T4OUT 50 NC 49 NC 48 NC 47 T3OUT 46 NC 45 NC 44 DRB2 43 GND 42 DRA2 41 VCC SP320 VCC 25 C1+ 26 VDD 27 C2+ 28 GND 29 C1– 30 C – 31 VSS 32 STEN 23 T4IN 24 VCC 33 ROUT4 21 DRIN2 22 GND 34 RCA2 37 RCB2 38 NC 36 R3IN 35 Note: NC (No Connection) pins should be left floating. Internal signals may be present. typical application circuit +5V + 0.1µF + 26 25, 33, 41, 62, 73 C1+ VCC VDD 27 32 + 0.1µF 30 C128 C2+ 31 C2- SP320 0.1µF VSS + 0.1µF +5V 3 TS000 9 ENV35 Vcc 400kΩ 100Ω Vcc 400kΩ Vcc 400kΩ Vcc 5kΩ 400kΩ Vcc 5kΩ 400kΩ RCA1 70 RCOUT 1 RCB1 71 RCA2 37 RCOUT2 20 RCB2 38 R1IN 66 R1OUT 80 R2IN 68 R2OUT 78 R3IN 35 100Ω 14 DRIN1 61 DRA1 59 DRB1 13 T1IN 58 T1OUT 16 T2IN 54 T2OUT 17 T3IN 47 T3OUT 24 T4IN Vcc 51 T4OUT 22 DRIN2 42 DRA2 44 DRB2 23 STEN 15 DRIN3 63 DRA3 65 DRB3 6 TTEN R3OUT 19 R4IN 39 R4OUT 21 RCA3 76 RCOUT3 79 RTEN 7 RCB3 77 5kΩ 400kΩ 5kΩ Vcc 400kΩ 100Ω 29, 34, 43, 60, 64, 72 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com R4IN 39 NC 40 2 SP320_00_092208 0 pAckAGe: 80 pin LqFp Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com SP320_00_092208  ORDERING INFORMATION Model Temperature Range Package Types SP320ACM-L................................................ 0˚C to +70˚C ........................ 80-pin JEDEC (BE-2 Outline) LQFP DATE 03-23-07 9-22-08 REVSION Rev B .0.0 DESCRIPTION Legacy Sipex Data Sheet 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 .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: uarttechsupport@exar.com Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50) 668-707 • www.exar.com SP320_00_092208 2