MSM6636 Oki Semiconductor, MSM6636 Datasheet
MSM6636
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MSM6636 Summary of contents
Page 1
... The MSM6636 is a transmission controller for automotive LAN based on data communication protocol SAE-J1850. This LSI can realize a data bus topology bus LAN system with a PWM bit encoding method (41.6 K bps). In addition to a protocol control circuit, MSM6636 has an enclosed quartz oscillation circuit, host CPU interface (clock synchronous serial / UART), a transmit/ receive buffer, and a bus receiver circuit that decreases the burden on the host CPU ...
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... Status Register Transmission Register Response Register x'tal Clock Generator 2 LAN Controller S-P PWM Receive Converter Decoder Buffer CRC Checker Receive Controller Transmission Controller CRC Generator P-S Converter MSM6636 ¡ Semiconductor LAN Bus Input Degital Bus Filter Receiver Address Filter LAN Bus Output PWM Encoder ...
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... Serial clock input/Parity select pin 20 I Serial data input pin 21 O Serial data output pin 22 O Interrupt output pin 23 I Reset input pin 24 — Digital power supply pin MSM6636 24pin Plastic SOP DVDD 1 24 RES 2 23 INT 3 22 TXD 4 21 RXD 5 ...
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... MSM6636 ABSOLUTE MAXIMUM RATINGS Parameter Power Supply Voltage Input Voltage Output Voltage Power Dissipation Storage Temperature D(DIP 18PIN DIP package power dissipation D(QFJ 18PIN QFJ package power dissipation D(SOP 24PIN SOP package power dissipation Power Dissipation Curve < 18PIN DIP package > ...
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... OL1 -4.0mA E DVDD - 0.4 OH2 +4.0mA E OL2 O — — OFF I During sleep — 16MHz, I — load MSM6636 DGND = AGND = 0V Rated Value Unit 4.5~5.5 V 2~16 MHz -40~+125 °C MIN TYP MAX Unit — DVDD + 0.3 V DVDD ¥ 0.2 — V — DVDD + 1.0 V — DGND + 2.0 ...
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... MSM6636 AC Chacteristics PWM Bit Timing Parameter Symbol Bit Length TP1 "1" Dominant Width TP2 "0" Dominant Width TP3 "SOF" Dominant Width TP4 "SOF,BRK" Length TP5 "BRK" Dominant Width TP6 "EOD" + Bit Length TP7 "EOF" + Bit Length TP8 "EOF + IFS" + Bit Length TP9 " ...
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... CKHW t 4tø — — SRS t 4tø — — SRH t 4tø — 6tø + 100 STD t 0 — — 8tø — — 8tø — — INT1 t 16tø — — INT2 MSM6636 Unit ...
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... MSM6636 mUART Parameter A-D - STOP bit ≠ Setup Time STOP bit Ø – A-D Hold Time START bit Ø – TXD Output Delay Time Write Frame Interval Time *3 Read Frame Interval Time *4 *3 Write Frame Interval Time Between “Communication type (WR) and address setting” frame and “WR data” frame. ...
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... DVDD=AVDD=5V±10%, Ta =-40~+125°C Symbol Min Typ t 7 — 300 — — UAS UAH STOP START t INT3 t INT4 t UTD STOP bit Termination MSM6636 Max Unit — µs — ns — µs START 9 ...
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... MSM6636 Fault Tolerant Function Operation Conditions Parameter LAN bus (+) GND Short Circuit Detection Pulse Width t LAN bus (+) VDD Short Circuit Detection Pulse Width t LAN bus (-) GND Short Circuit Detection Pulse Width LAN bus (-) VDD Short Circuit Detection Pulse Width BUS(+) BUS(-) ...
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... Semiconductor APPLICATION EXAMPLE Host CPU and LAN bus Connection Example Host CPU and LAN bus connection example of MSM6636 is shown below. Host CPU SOUT SIN INT CLKOUT OPEN RES The above connection example is when "UART, MPC and parity no mode" was used as the " ...