M75176P MITSUBISHI | Alldatasheet

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MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER

DESCRIPTION

Each of the M75176 to M75179 is a semiconductor IC with a built-in differential driver and a built-in differential receiver both of which meet the EIA standards RS-422A and RS-485.

FEATURES

  • 5V single power supply
  • With output control input (except M75179P) Driver
  • 5 4Ω terminal resistor connectable between outputs.
  • High output impedance at power-OFF time
  • Built-in output current limit circuit Receiver
  • High input sensitivity (±200mV max.)
  • Hysteresis input (50mV typ.)
  • High input impedance (12kΩ min.)
  • “H” emitted when input is open (failsafe function) APPLICATION High-speed data transmission interface for digital equipment DESCRIPTION OF FUNCTION The M75176P to M75179P are line interface ICs which meet EIA standards RS-422A and RS-485, and are suitable for long-distance, high-speed data transmission. The M75176P is designed to connect the driver circuit output and the receiver input to each other internally, and serves as a line transceiver. The M75177P/M75178P is designed to connect the receiver circuit output and the driver circuit input internally, and serves as a line repeater. The M75177P and M75178P enter the output enabled state with active “H” and active “L”, respectively. The M75179P is equipped with a built-in differential driver and a built-in differential receiver. It does not have an output control input pin but its output im- pedance at the power-OFF time goes high. PIN CONFIGURATION (TOP VIEW) M75176P I/O BUS RECEIVER OUTPUT CONTROL INPUT RECEIVER OUTPUT DRIVER OUTPUT CONTROL INPUT DRIVER INPUT R ← RE → DE → D → ↔ B ↔ A VCC GND M75177P RECEIVER INPUT REPEATER OUTPUT OUTPUT CONTROL INPUT DRIVER OUTPUT T ← EN → ← B ← A → Z → Y VCC GND M75178P T ← EN → ← B ← A → Z → Y VCC GND RECEIVER INPUT REPEATER OUTPUT OUTPUT CONTROL INPUT DRIVER OUTPUT M75179P RECEIVER INPUT RECEIVER OUTPUT DRIVER INPUT DRIVER OUTPUT R ← D → ← B ← A → Z → Y VCC GND Outline 8P4

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER FUNCTION TABLE (Note 1) (a) M75176P Driver Receiver D H L X DE H H L A H L Z B L H Z INPUTS OUTPUTS VID VID > 0.2V –0.2V < VID < 0.2V VID < –0.2V X INPUTS OUTPUTS R H L Z RE L L L H VID VID > 0.2V –0.2V < VID < 0.2V VID < –0.2V X INPUTS (b) M75177P/M75178P OUTPUTS EN (M75177P) H H H L EN (M75178P) L L L H T H L Z Y H L Z Z L H Z Z L H INPUTS D H L OUTPUTS INPUTS VID VID > 0.2V –0.2V < VID < 0.2V VID < –0.2V OUTPUTS R H L (c) M75179P Driver Receiver Y H L Note 1: VID: (A applied voltage) – (B applied voltage) X : Either “L” or “H” ] : Output state is not defined. Z : High impedance state.

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER ABSOLUTE MAXIMUM RATINGS Symbol VCC VID VIE Pd Tstg Parameter Supply voltage Differential input voltage Enable input voltage Power dissipation (Note 2) Storage temperature Unit V V V mW Ratings –0.5 ~ +7 –25 ~ +25 –0.5 ~ +5.5 925 –65 ~ 150 Conditions When Ta=25°C 75177/178/179 75176/177/178 Note 2: When Ta ≥ 25°C, do derating according to the attached thermal derating. RECOMMENDED OPERATING CONDITIONS Parameter Supply voltage Bus pin voltage (each pin voltage, in-phase input voltage) Differential input voltage “H” output current “L” output current Operating ambient temperature Symbol V CC VI, VIC VID IOH IOL Topr Max. 5.25 +12 +12 –60 –400 Typ. Min. 4.75 –12 –20 Unit V V V mA mA mA Limits Driver Receiver Driver Receiver VOL < 0.45V VOL < 0.5V ELECTRICAL CHARACTERISTICS (Driver) (VCC = 5V ± 5%, Ta = –20 ~ 75°C, unless otherwise noted) Parameter “H” input voltage “L” input voltage Input clamp voltage Differential output voltage 1 Differential output voltage 2 Differential output voltage variance width In-phase output voltage In-phase output voltage variance width Output current Off-state output current “H” input current “L” input current Output short-circuit current Supply voltage Symbol V IH VIL VIK |VOD1 | |VOD2 | Δ|VOD | VOL Δ|VOC | IO IOZ IIH IIL IOS ICC Max. 0.8 –1.5 ±0.2 ±0.2 –0.8 ±100 ±300 –400 –250 –150 250 250 Typ.* 2.42 2.18 2.08 29.5 32.5 Min. 1.5 2 (Note 3) VOD1 /2 1.5 Unit V V V V V V V V mA mA mA mA mA mA mA LimitsTest conditions I I=–18mA IO =0mA R L=100Ω See Fig. 1. R L=54Ω See Fig. 1. R L=54/100Ω See Fig. 1. Output disable VCC =0V, VO =–7 ~ +12V VO =–7 ~ +12V VI=2.4V VI=0.4V VO =–7V VO =0V VO =VCC VO =12V No output load 75176 75177/178/179 VO =12V VO =–7V Output enable Output disable *: The standard value is given on the condition of VCC = 5V and Ta = 25°C. Note 3: The standard is 1.9V (min.) when Ta ≤ 0°C.

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER SWITCHING CHARACTERISTICS (Driver) (VCC = 5V, Ta=25°C) Parameter Differential output delay time Differential output transition time Output “L - H” propagation delay time Output “H - L” propagation delay time “H” enable time “L” enable time “H” disable time “L” disable time Symbol t DD tTD tPLH tPHL tPZH tPZL tPHZ tPLZ Max. Typ. Min. Unit ns ns ns ns ns ns ns ns LimitsTest conditions R L=54Ω C L=50pF R L=27Ω C L=50pF R L=110Ω C L=50pF ELECTRICAL CHARACTERISTICS (Receiver) (VCC = 5V ± 5%, Ta = –20 ~ 75°C, unless otherwise noted) Parameter High threshold voltage Low threshold voltage Hysteresis width (Note 4) Enable input clamp voltage “H” output voltage “L” output voltage Off-state output current Line input current “H” enable input current “L” enable input current Input resistance Output short-circuit current Supply voltage Symbol V TH VTL VT+ - VT– VIK VOH VOL IOZ II IIH IIL ri IOS ICC Max. 0.2 –1.5 0.45 0.5 ±20 –400 –0.8 –100 –400 –85 Typ.* 3.6 0.23 0.30 Min. –0.2 2.7 –15 Unit V V mV V V V mA mA mA mA kΩ mA mA LimitsTest conditions V O =2.7V, IO =–0.4mA VO =0.5V, IO =16mA II=–18mA VID=0.2V, IOH =–0.4mA VID=–0.2V VO =0.4 ~ 2.4V VO =0.4V VO =2.4V Other input 0V V IH=2.7V VIL=0.4V VO =0V No output load See Fig. 2. See Fig. 3. See Figs. 4 & 5. IOL =8mA IOL =16mA VO =12V VO =–7V Output enable Output disable 75176 75176/177/178 75176 *: The standard value is given on the condition of VCC = 5V and Ta = 25°C. Note 4: The hysteresis width is the difference between positive threshold voltage VT+ and negative threshold voltage VT–. SWITCHING CHARACTERISTICS (Receiver) (VCC = 5V, Ta=25°C) Parameter Output “L - H” propagation delay time Output “H - L” propagation delay time “H” enable time “L” enable time “H” disable time “L” disable time Symbol t PLH tPHL tPZH tPZL tPHZ tPLZ Max. Typ. Min. Unit ns ns ns ns ns ns LimitsTest conditions C L=15pF C L=15pF C L=15pF See Fig. 6. See Fig. 7. See Fig. 7.

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER TEST CIRCUITS Fig. 1 VOD2 R L / 2 R L / 2 VOC Driver differential output voltage 2, in-phase output voltage Driver differential output delay time and transition time Driver delay time Driver enable/disable time Driver enable/disable time P.G. (Note 5) Input 50Ω (M75178P is 0V) Test circuit R L Output C L (Note 6) (M75178P is 0V) Test circuit P.G. (Note 5) Input 50Ω 2.3V C L (Note 6) R L Output Test circuit P.G. (Note 5) Input 50Ω R LC L (Note 6) Output 0V or 3V Test circuit P.G. (Note 5) Input 50Ω Output R L C L (Note 6) 3V or 0V Input 1.5V tDD tDD 1.5V Output 50% tTD tTD 50%90% 10% I/O waveform Input VOL VOH VOL VOH 1.5V tPHL tPLH 1.5V 2.3V2.3V Output 2.3V 2.3V I/O waveform tPLH tPHL VOH 2.3V 0.5V (M75178P) Input (M75176/177P) 1.5V tPZH tPHZ 1.5V Output I/O waveform 2.3V 0.5V (M75178P) (M75176/177P) VOL 1.5V tPZL tPLZ 1.5V I/O waveform Input Output Note 5: The pulse generator is PRR ≤ 1MHz, duty ratio = 50%, tr ≤ 6ns, tf ≤ 6ns, ZOUT = 50Ω . 6: CL includes jigs and probe capacitance. Fig. 2 Fig. 3 Fig. 4 Fig. 5

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER Receiver propagation delay time P.G. (Note 7) Input 1.5V 50Ω M75177P is 3V Test circuit C L (Note 8) Output P.G. (Note 7) Input 1.5V 50Ω Test circuit 5kΩ 2kΩ S2 C L (Note 8) Output –1.5V Input VOH VOL 1.5V 1.3V tPLH tPHL 1.5V Output 1.3V I/O waveform VOH (M75177P) (M75176/178P) 1.5V 1.5V tPZH 1.5V Output S1 1.5V side S2 open S3 closed Input S1 1.5V side S2 closed S3 open VOL 1.5V 1.5V tPZL 1.5V 4.5V (M75177P) (M75176/178P) Output Input S1 1.5V side S2 closed S3 closed VOH 1.3V 1.5V 1.5V tPHZ 0.5V (M75177P) (M75176/178P) Output Input S1 1.5V side S2 closed S3 closed VOL 1.5V 1.5V tPLZ 0.5V 1.3V (M75177P) (M75176/178P) Output Input Note 7: The pulse generator is PRR ≤ 1MHz, duty ratio = 50%, tr ≤ 6ns, tf ≤ 6ns, ZOUT = 50Ω . 8: CL includes jigs and probe capacitance. Receiver enable/disable time Fig. 6 Fig. 7

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER THERMAL DERATING 250 500 750 1000 – 2 00 2 04 06 08 0 POWER DISSIPATION P d (mW) AMBIENT TEMPERATURE T a (°C) THERMAL DERATING CHARACTERISTIC 8P4 Unit 02468 1 0 SUPPLY CURRENT I CC (mA) SUPPLY VOLTAGE V CC (V) SUPPLY CURRENT - SUPPLY VOLTAGE CHARACTERISTIC Output disable EN = 0V M75177P A=0V B=4.5V T a=25°C Output enable EN = 4.5V OUTPUT “L-H” PROPAGATION DELAY TIME t PLH , OUTPUT “H-L” PROPAGATION DELAY TIME t PHL (ns) SWITCHING CHARACTERISTIC 0 2 04 06 08 0 I/O VOLTAGE WAVEFORM (V) D input voltage waveform Y output voltage waveform Z output voltage waveform VCC =5V Ta=25°C 0 2 04 06 08 0 INPUT VOLTAGE WAVEFORM (V) DIFFERENTIAL OUTPUT VOLTAGE WAVEFORM (V) DIFFERENTIAL OUTPUT DELAY TIME t DD , DIFFERENTIAL OUTPUT TRANSITION TIME t TD (ns) SWITCHING CHARACTERISTIC Y-Z Differential output voltage waveform D input voltage waveform VCC =5V Ta=25°C 0 2 04 06 08 0 1 0 0 “H” OUTPUT VOLTAGE V OH (V) OUTPUT CURRENT SOURCE I O (mA) DRIVER “H” OUTPUT VOLTAGE “L” OUTPUT VOLTAGE - OUTPUT CURRENT CHARACTERISTIC VOH VOL VCC=5V Ta=25°C “L” OUTPUT VOLTAGE V LO (V) 0 2 04 06 08 0 1 0 0 VOC VOD VCC =5V Ta=25°C DIFFERENTIAL OUTPUT VOLTAGE V OD (V) IN-PHASE OUTPUT VOLTAGE V OC (V) OUTPUT CURRENT I O (mA) DIFFERENTIAL OUTPUT VOLTAGE IN-PHASE OUTPUT VOLTAGE - OUTPUT CURRENT CHARACTERISTIC Load line R L=100Ω Load line R L=54Ω 3

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER –160 –80 0 80 160 OUTPUT VOLTAGE V O (V) INPUT VOLTAGE V ID (mV) RECEIVER I/O TRANSMISSION CHARACTERISTIC (A → R) VCC =5V IO =0mA Ta=25°C VIC=0V VIC=–7V VIC=12V 0 2 04 06 08 0 I/O VOLTAGE WAVEFORM (V) OUTPUT “H-L” PROPAGATION DELAY TIME t PHL (ns) SWITCHING CHARACTERISTIC A input voltage waveform VCC =5V B=1.5V T a=25°C R output voltage waveform –1.6 –0.8 0.8 1.6 2.4 –20 –10 0 10 20 INPUT CURRENT II (mA) INPUT VOLTAGE V I (V) INPUT CURRENT - INPUT VOLTAGE CHARACTERISTIC (A) B=0V Ta=25°C VCC =0V VCC =5V 0 2 04 06 08 0 I/O VOLTAGE WAVEFORM (V) OUTPUT “L-H” PROPAGATION DELAY TIME t PLH (ns) SWITCHING CHARACTERISTIC R output voltage waveformA input voltage waveform VCC =5V B=1.5V T a=25°C 0.1 0.2 0.3 0.4 0.5 0 4 8 12 16 20 “L” OUTPUT VOLTAGE V OL (V) “L” OUTPUT CURRENT IOL (mA) “L” OUTPUT VOLTAGE - “L” OUTPUT CURRENT CHARACTERISTIC VID=–0.2V Ta=25°C VCC =4.75V 5.75V “H” OUTPUT VOLTAGE V OH (V) “H” OUTPUT CURRENT IOH (mA) “H” OUTPUT VOLTAGE - “H” OUTPUT CURRENT CHARACTERISTIC VID=0.2V Ta=25°C VCC =5.25V VCC =5V VCC =4.75V

MITSUBISHI 〈DIGITAL ASSP 〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER APPLICATION EXAMPLE Data output Data input Data output Data input M75176P R T=Terminal resistor M75176P R T R T Data output Data input M75176P M75178P M75177P R T R T