MSM82C51A-2RS Oki Semiconductor, MSM82C51A-2RS Datasheet
MSM82C51A-2RS
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MSM82C51A-2RS Summary of contents
Page 1
... Asynchronous communication upto 38.4 Kbaud • Transmitting/receiving operations under double buffered configuration. • Error detection (parity, overrun and framing) • 28-pin Plastic DIP (DIP28-P-600-2.54): (Product name: MSM82C51A-2RS) • 28-pin Plastic QFJ (QFJ28-P-S450-1.27): (Product name: MSM82C51A-2JS) • 32-pin Plastic SSOP(SSOP32-P-430-1.00-K): (Product name: MSM82C51A-2GS-K) This version: Jan ...
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... Semiconductor FUNCTIONAL BLOCK DIAGRAM RESET CLK C DSR DTR CTS RTS Transmit Data Bus Buffer Buffer ( Transmit Read/Write Control Control Logic Recieve Modem Buffer Control ( Recieve Control MSM82C51A-2RS/GS/JS TXD TXRDY TXE TXC RXD RXRDY RXC SYNDET/BD 2/26 ...
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... TXD RXD GND TXC C RXRDY MSM82C51A-2RS/GS/ RXC 25 DTR 24 RTS 23 DSR 22 RESET 21 20 CLK 19 TXD TXEMPTY 18 CTS 17 SYNDET/BD 16 TXRDY ...
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... Status Æ CPU Control Word ¨ CPU Data Æ CPU Data ¨ CPU External Reset Write Mode Instruction yes Asynchronous no Write First Sync Charactor yes Single Sync Mode no Write Second Sync Charactor End of Mode Setting MSM82C51A-2RS/GS/JS 4/26 ...
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... Fig. 2 Bit Configuration of Mode Instruction (Asynchronous Refer to Fig. 3 SYNC 5 bits Disable Inhabit MSM82C51A-2RS/GS/JS Baud Rate Factor ¥ 16 ¥ 64 ¥ Charactor Length bits 7 bits 8 bits ...
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... Fig. 3 Bit Configuration of Mode Instruction (Synchronous PEN Charactor Length Parity Disable Synchronous Mode Number of Synchronous Charactors 2 Charactors MSM82C51A-2RS/GS/ bits 6 bits 7 bits 8 bits Odd Even Disable ...
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... SBRK RXE DTR TXEN Note: Seach mode for synchronous Fig. 4 Bit Configuration of Command MSM82C51A-2RS/GS/JS 0 1ºTransmit Enable 0ºDisable DTR 1 Æ DTR = 0 0 Æ DTR = 1 1ºRecieve Enable 0ºDisable 1ºSent Break Charactor 0ºNormal Operation 1ºReset Error Flag 0ºNormal Operation RTS 1 Æ ...
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... TXEMPTY RXRDY TXRDY , RD, WR and C/D are fixed at Vcc or GND level (including 7 MSM82C51A-2RS/GS/JS Parity Different from TXRDY Terminal. Refer to "Explanation" of TXRDY Terminals. Same as terminal. Refer to "Explanation" of Terminals. 1ºParity Error 1ºOverrun Error 1ºFraming Error Note: Only asynchronous mode. Stop bit cannot be detected. ...
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... This is an output terminal for transmitting data from which serial-converted data is sent out. The device is in “mark status” (high level) after resetting or during a status when transmit is disabled also possible to set the device in “break status” (low level command. MSM82C51A-2RS/GS/JS 9/26 ...
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... This is a clock input signal which determines the transfer speed of received data. In “synchronous mode,” the baud rate is the same as the frequency of RXC. In “asynchronous mode,” possible to select the baud rate factor by mode instruction. It can be 1, 1/16, 1/64 the RXC. MSM82C51A-2RS/GS/JS Timing) 10/26 ...
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... This is an input terminal for MODEM interface which is used for controlling a transmit circuit. The terminal controls data transmission if the device is set in “TX Enable” status by a command. Data is transmitable if the terminal is at low level. RTS (Output terminal) This is an output port for MODEM interface possible to set the status RTS by a command. MSM82C51A-2RS/GS/JS 11/26 ...
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... V 2.2 IH Unit Min. Typ. Max. — — 0.45 V 3.7 — — –10 — –10 — 10 — — — — 100 MSM82C51A-2RS/GS/JS Unit Conditions V With respect V to GND V — °C 0 25°C Unit V °C Max. Unit 5 5.5 V +85 °C — +0.8 V — 4 – ...
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... RD to Data Float Recovery Time between RD Address Stable before WR Address Hold Time for WR WR Pulse Width Data Set-up Time for WR Data Hold Time for WR Recovery Time between WR RESET Pulse Width MSM82C51A-2RS/GS/ 4 –40 to 85°C) CC Symbol Min. Max — ...
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... TXEMPTY RXDS t 17 RXDH 16¥, 64¥ Baud and for Synchronous Mode MSM82C51A-2RS/GS/ 4 –40 to 85°C) CC Unit Remarks Max. ns — Note 3 ns — — –50 — — — ...
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... Receiver Clock and Data (RXBAUD Counter starts here) RXD RXC (1 ¥ Mode) 8RXC Periods (16¥Mode) RXC (16 ¥ Mode) INT Sampling Pulse TPD t DTX Start bit t RPD t RPW 16 RXC Periods (16 ¥ Mode MSM82C51A-2RS/GS/ Data bit Data bit 3t CY 15/26 ...
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... Data Float Don't Care Data Stable Data Float MSM82C51A-2RS/GS/JS t TXRDY Clear Don't Care RXRDY Clear Data Float Data Out Active ...
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... CHAR2 CHAR1 SYNC CHAR2 CHAR3 CHAR4 PAR PAR PAR PAR PAR MSM82C51A-2RS/GS/JS Wr SBRK DATA CHAR 4 RxEn RxEn Err Res Wr Commond Wr Data SBRK CHAR5 Marking Spacing Marking Data SYNC State ...
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... Data cannot be received correctly due to a malfunction. ¥64 Data cannot be received correctly due to a malfunction. ¥16 The bit is regarded as a start bit. (normal) ¥64 The bit is regarded as a start bit. (normal) MSM82C51A-2RS/GS/JS (Note Status Rd Status Data Data ...
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... P: Parity bit Data bits RXRDY signal is outputted during data reception due to a malfunction MSM82C51A-2RS/GS/ ...
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... parity flag is set, but, no RXRDYsignal is outputted parity flag is set. and a RXRDY signal is outputted. MSM82C51A-2RS/GS/ ≠ ≠ D ...
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... High-speed device (New) M80C85AH M80C86A-10 M80C88A-10 M82C84A-2 M81C55-5 M82C37B-5 M82C51A-2 M82C53-2 M82C55A-2 Remarks Low-speed device (Old) M80C85A/M80C85A-2 8bit MPU 16bit MPU M80C86A/M80C86A-2 8bit MPU M80C88A/M80C88A-2 Clock generator M82C84A/M82C84A-5 RAM.I/O, timer M81C55 DMA controller M82C37A/M82C37A-5 USART M82C51A Timer M82C53-5 PPI M82C55A-5 MSM82C51A-2RS/GS/JS 21/26 ...
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... minimum WD t 250 ns minimum minimum f 120 ns minimum maximum CY- MSM82C51A-2RS/GS/JS MSM82C51A-2 +2.5 mA -2.5 mA MSM82C51A-2 130 ns minimum 100 ns maximum 75 ns minimum 100 ns minimum 100 ns minimum 0 ns minimum 160 ns minimum 50 ns minimum 70 ns minimum maximum CY- ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM82C51A-2RS/GS/JS (Unit : mm) Package material Epoxy resin ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM82C51A-2RS/GS/JS (Unit : mm) Package material Epoxy resin ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM82C51A-2RS/GS/JS (Unit : mm) Package material Epoxy resin ...
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... When the pulldown resistor is greater than 8 kiloohms, use a pulldown resistor of 8 kiloohms or less. Case 3: When an output of the other IC device is connected to the device. The MSM82C84A can be replaced by the MSM82C84A-2 when the I ASYNC pin of the MSM82C84A-2 has an allowance of 100 mA or more. MSM82C51A-2RS/GS/JS pin of the device to drive the OL 26/26 ...