MCP2122-E/SNG Microchip Technology, MCP2122-E/SNG Datasheet
MCP2122-E/SNG
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MCP2122-E/SNG Summary of contents
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... Low-voltage operation • Extended temperature range • Low power consumption IrDA Family Selection Baud Rate Device Host IR UART MCP2120 2400 - 2400 - (1) (1) 312,500 312,500 MCP2122 2400 - 2400 - (1) (1) 115,200 312,500 MCP2140 9600 9600 MCP2150 9600 - 9600 - (2) (2) 115,200 115,200 MCP2155 9600 - ...
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... MCP2122 NOTES: DS21894A-page 2 Preliminary 2004 Microchip Technology Inc. ...
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... The IR Transceiver also receives IR light pulses (data), which are outputted as electrical pulses. The MCP2122 decodes (demodulates) these electrical pulses, with the data then transmitted by the MCP2122 UART. This modulation and demodulation method is performed in accordance with the IrDA standard. Table 1-1 shows an overview of some of the device features ...
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... MCP2122 TABLE 1-2: PIN DESCRIPTION Pin Number Pin Pin Name Type PDIP SOIC 16XCLK — SS RESET RXIR TXIR — DD Legend Schmitt Trigger input with CMOS levels I = Input P = Power DS21894A-page 4 Buffer ...
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... RESET = L H (device in Normal Operation mode). The MCP2122 has a RESET noise filter in the RESET input signal path. The filter will detect and ignore small pulses. Using the RESET pin to enter a low-power state is discussed in Section 2.9 “ ...
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... MCP2122 2.3.1 BROWN-OUTS Some applications may subject the MCP2122 to a brown-out condition. Good design practice requires that when a system is in brown-out, the system should be in reset to ensure that the system known state when the system exits the brown-out. This brown-out circuitry is external to the MCP2122. ...
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... Clock) The MCP2122 requires an external clock source to operate. The 16XCLK pin is the device clock input (see Figure 2-5) and is independent of the host UART interface or the IR interface. The 16XCLK determines all timing during device operation the edge of the 16XCLK pin that causes activity to occur. ...
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... MCP2122 2.4.1 BAUD RATE The baud rate for the MCP2122 is determined by the frequency of the 16XCLK signal. Equation 2-1 demonstrates how to calculate the 16XCLK frequency based on the desired baud rate. Table 2-3 shows some common baud rates and the corresponding 16XCLK frequency. EQUATION 2-1: 16XCLK FREQUENCY ...
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... MCP2122 16XCLK, TX and TXIR waveforms at 115200 baud for a single TX low bit. In this case the TXIR is high for three 16XCLK pulses. In Figure 2-10 the MCP2122 is at 9600 baud for a single TX low bit. In this case the TXIR is high for 3.55 µs. FIGURE 2-9: MCP2122 AT 115200 BAUD WAVEFORM ...
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... MCP2122 FIGURE 2-10: MCP2122 AT 9600 BAUD WAVEFORM TXIR Jitter of the TX input relative to the 16XCLK and TXIR DS21894A-page Preliminary 16XCLK Pulse 2004 Microchip Technology Inc. ...
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... This means that the system can not transmit and receive at the same time. 2.6.1 TRANSMITTING When the controller sends serial data to the MCP2122, the baud rates are required to match. There will be some jitter on the detection of the high to low edge of the start bit. This jitter will affect the place- ment of the encoded start bit ...
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... MCP2122 3.0 DEVELOPMENT TOOLS There are currently no development tools for the MCP2122. A demo board is scheduled to be available soon. DS21894A-page 12 Preliminary 2004 Microchip Technology Inc. ...
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... Exposure to maximum rating conditions for extended periods may affect device reliability. 2004 Microchip Technology Inc. ..................................................................................................... –0.3V to +14V ................................................................................. –0. ∑( Preliminary MCP2122 + 0.3V DS21894A-page 13 ...
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... MCP2122 FIGURE 4-1: VOLTAGE-FREQUENCY (16XCLK) GRAPH, - (Volts) DS21894A-page 14 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1 1.8432 Frequency (MHz) Preliminary T +125 C A 2004 Microchip Technology Inc. ...
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... DD , RXIR = RXIR = V SS Preliminary MCP2122 +125 C (Extended) Conditions See Figure 4 1.8432 MHz 5.5V OSC DD ( RXIR = H) Transmitter ( RXIR = H) ( 1.8432 MHz 1.8V OSC 1.8432 MHz 5.5V OSC DD ...
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... MCP2122 DC Characteristics (Continued) DC CHARACTERISTICS Param Sym Characteristic No. V Input Low Voltage IL Input pins D031 TX, RXIR D032 RESET D033 16XCLK V Input High Voltage IH Input pins D041 TX, RXIR D042 RESET D043 16XCLK I Input Leakage IL (2, 3) Current D060A TX, and 16XCLK D061 RESET D060B I RXIR IH Note 1: Data in the Typical (“ ...
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... Min Typ Max Units — — 0.6 V — — 0 – 0.7 — — – 0.7 — — — — — 7 — pF Preliminary MCP2122 Conditions -0 -0 1.0 MHz A C DS21894A-page 17 ...
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... MCP2122 4.2 Timing Parameter Symbology and Load Conditions The timing parameter symbols have been created following one of the following formats: 4.2.1 TIMING CONDITIONS The temperature and voltages specified in Table 4-2 apply to all timing specifications unless otherwise noted. Figure 4-2 specifies the load conditions for the timing specifications. ...
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... Standard Operating Conditions (unless otherwise specified) Operating Temperature: –40 C Operating Voltage V range is described in DD Section 4.1 “DC Characteristics” (1) Min Typ Max 542.5 — — DC — 1.8432 — — ±2 50 — — — — 7.5 (5) Preliminary MCP2122 +125 C (Extended) A Units Conditions ns MHz % Note Note 5 DS21894A-page 19 ...
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... MCP2122 FIGURE 4-4: I/O WAVEFORM 16XCLK RX or Old Value TXIR Pin Note: Refer to Figure 4-2 for load conditions. TABLE 4-4: I/O TIMING REQUIREMENTS AC Characteristics Param. Sym Characteristic No. (2, 3) 20A ToR RX pin rise time 20B 20C TXIR pin rise time 20D (2, 3) 21A ToF RX pin fall time ...
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... Standard Operating Conditions (unless otherwise specified) Operating Temperature: – Operating Voltage V range is described in DD Section 4.1 “DC Characteristics”. (1) Min Typ Max Units 2000 — — ns — — 2 µs — — 2 µs Preliminary MCP2122 34A 34B +125 C (Extended) Conditions DS21894A-page 21 ...
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... MCP2122 FIGURE 4-6: TX AND TXIR WAVEFORMS Bit IR100 16XCLK TX IR114 IR113 IR122 IR120 IR115 TXIR IR121 0 TABLE 4-6: TX AND TXIR REQUIREMENTS AC Characteristics Param. Sym Characteristic No. IR100A T Transmit Baud Rate TXBIT IR100B T Transmit Baud Rate TXIRBIT IR102A E Host UART TX Error TXBIT IR102B E TXIR Error from 16XCLK ...
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... Smaller of Smaller of 3 — 3 1.41 3.5 5 — 16 — — — — Preliminary MCP2122 16 CLK Data bit x+1 1 IR113 T +125 C (Extended) A Units Conditions ns Note 2 T Note 2 XCLK T XCLK T At 115200 baud XCLK µs At 9600 baud (Note 3) T XCLK ns V 2.7V (Note 2) ...
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... MCP2122 FIGURE 4-8: RXIR AND RX WAVEFORMS Bit Bit IR110 16XCLK IR133 IR132 IR132 RXIR IR131A IR134 IR130 IR132 RX IR103 0 Note: Refer to Figure 4-2 for load conditions. TABLE 4-8: RXIR REQUIREMENTS AC Characteristics Param. Sym Characteristic No. IR101A E RXIR Error RXIRBIT IR101B E Host UART RX Error RXBIT IR103 T ...
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... DC AND AC CHARACTERISTICS GRAPHS AND TABLES The graphs and tables are not available at this time 2004 Microchip Technology Inc. Preliminary MCP2122 DS21894A-page 25 ...
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... MCP2122 NOTES: DS21894A-page 26 Preliminary 2004 Microchip Technology Inc. ...
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... Standard device marking consists of Microchip part number, year code, week code, and traceability code.. 2004 Microchip Technology Inc. Example: GMCP2122 E/P256 0410 Example: GMCP2122 E/SN0410 256 Preliminary MCP2122 DS21894A-page 27 ...
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... MCP2122 8-Lead Plastic Dual In-line (P) – 300 mil Body (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width ...
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... A1 .004 .007 .010 E .228 .237 .244 E1 .146 .154 .157 D .189 .193 .197 h .010 .015 .020 L .019 .025 .030 .008 .009 .010 B .013 .017 .020 Preliminary MCP2122 A2 MILLIMETERS MIN NOM MAX 8 1.27 1.35 1.55 1.75 1.32 1.42 1.55 0.10 0.18 0.25 5.79 6.02 6.20 3.71 3.91 3.99 4.80 4.90 5.00 0.25 0.38 0.51 0.48 0.62 0. 0.20 0.23 0.25 0.33 0.42 0. ...
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... MCP2122 NOTES: DS21894A-page 30 Preliminary 2004 Microchip Technology Inc. ...
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... Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2004 Microchip Technology Inc. Examples MCP2122-E/PG: Lead Finish b) MCP2122-E/SNG: c) MCP2122T-E/SNG: Tape and Reel, Preliminary MCP2122 . Extended Temperature, PDIP package, Pb-free Extended Temperature, ...
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... MCP2122 NOTES: DS21894A-page 32 Preliminary 2004 Microchip Technology Inc. ...
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... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Italy Via Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 05/28/04 2004 Microchip Technology Inc. ...