19-0175; Rev 3; 5/96 ±15kV ESD-Protected, +5V RS-232 Transceivers M _______________General Description ____________________________Features The MAX202E–MAX213E, MAX232E/MAX241E line ESD Protection for RS-232 I/O Pins: A drivers/receivers are designed
5.7 Electrical Characteristics, Receiver
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS(3) MIN TYP(1) MAX UNIT
VOH High-level output voltage R1OUT, R2OUT IOH = -1mA 3.5 V
VOL Low-level output voltage(2) R1OUT, R2OUT IOL = 3.2mA 0.4 V
VIT+ Receiver positive-going input threshold voltage R1IN, R2IN VCC = 5V, TA = 25°C 1.7 2.4 V
VIT- Receiver negative-going input threshold voltage R1IN, R2IN VCC = 5V, TA = 25°C 0.8 1.2 V
19-0175; Rev 3; 5/96 ±15kV ESD-Protected, +5V RS-232 Transceivers M _______________General Description ____________________________Features The MAX202E–MAX213E, MAX232E/MAX241E line ESD Protection for RS-232 I/O Pins: A drivers/receivers are designed
19-0175; Rev 3; 5/96 ±15kV ESD-Protected, +5V RS-232 Transceivers M _______________General Description ____________________________Features The MAX202E–MAX213E, MAX232E/MAX241E line ESD Protection for RS-232 I/O Pins: A drivers/receivers are designed
MAX201) +5 and 2/2 2 1.0 (0.1) No — 120 Standard +5/+12V or battery supplies; +7.5 to +13.2 same functions as MAX232 MAX232 (MAX202) +5 2/2 4 1.0 (0.1) No — 120 (64) Industry standard MAX232A +5 2/2 4 0.1
.) 4 2 PARAMETER CONDITIONS MIN TYP MAX UNITS X MAX222/MAX232A/MAX233/ 0.5 1 tPHLR MAX242/MAX243 A Receiver Propagation Delay RS-232 to MAX220 0.6 3 M µs TLL (Normal Operation), Figure 2 MAX222/MAX232A/MAX233/ – t MAX242/MAX243 0.6 1 0 PLHR
5.7 Electrical Characteristics, Receiver
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS(3) MIN TYP(1) MAX UNIT
VOH High-level output voltage R1OUT, R2OUT IOH = -1mA 3.5 V
VOL Low-level output voltage(2) R1OUT, R2OUT IOL = 3.2mA 0.4 V
VIT+ Receiver positive-going input threshold voltage R1IN, R2IN VCC = 5V, TA = 25°C 1.7 2.4 V
VIT- Receiver negative-going input threshold voltage R1IN, R2IN VCC = 5V, TA = 25°C 0.8 1.2 V
RS 232 MAX232 5V-->3V V X1-1 5 +D F X1-2 N 3 7 IC1 F G C 4 5 u 1 C1+ C 4 V+ 2 u 5 u 3 C1- C 4 D + C 4 V- 6 N 4 C2+ G IC2 GND X3 LM3940 5 1 5 D1 1 3 +3,3V 1 2 C2- 2 6 + 1N4148DO35-10 VI VO RXD_MAX 3 4 TXD_MAX
(MAX201) +5 and 2/2 2 1.0 (0.1) No — 120 Standard +5/+12V or battery supplies; +7.5 to +13.2 same functions as MAX232 MAX232 (MAX202) +5 2/2 4 1.0 (0.1) No — 120 (64) Industry standard MAX232A +5 2/2 4 0.1
1 2 3 4 5 6 7 A Master A nke Multigrafic 13.6V GND Data B B RS232 TTL ch1 C - MAX3232 -> C Sipeed LA <- + + 5V -> - GND <- D D Fluke Ozzi Title Author E E File Document Revision Date Sheets 1.0 1 of 1 1 2 3 4 5 6 7
(MAX201) +5 and 2/2 2 1.0 (0.1) No — 120 Standard +5/+12V or battery supplies; +7.5 to +13.2 same functions as MAX232 MAX232 (MAX202) +5 2/2 4 1.0 (0.1) No — 120 (64) Industry standard MAX232A +5 2/2 4 0.1
.) 4 2 PARAMETER CONDITIONS MIN TYP MAX UNITS X MAX222/MAX232A/MAX233/ t MAX242/MAX243 0.5 1 A PHLR Receiver Propagation Delay RS-232 to MAX220 0.6 3 M µs TLL (Normal Operation), Figure 2 MAX222/MAX232A/MAX233/ – MAX242/MAX243 0.6 1 0 tPLHR
19-0175; Rev 4; 11/00 ±15kV ESD-Protected, +5V RS-232 Transceivers M _______________General Description ____________________________Features The MAX202E–MAX213E, MAX232E/MAX241E line A drivers/receivers are designed for RS-232 and V.28 ESD Protection for
(MAX201) +5 and 2/2 2 1.0 (0.1) No — 120 Standard +5/+12V or battery supplies; +7.5 to +13.2 same functions as MAX232 MAX232 (MAX202) +5 2/2 4 1.0 (0.1) No — 120 (64) Industry standard MAX232A +5 2/2 4 0.1
maintaining RS-232 output levels. The 1µA Low-Power Shutdown with Receivers Active M in the normal operating mode and 1Mbps in the 250kbps (MAX3222/MAX3237/MAX3241) A MegaBaud™ operating mode, while maintaining RS-232
Data rate (typ): 220Kbps ■ Operating temperature range: – -40° to 85°C – 0° to 70°C ■ Compatible with MAX232 and MAX202 SOP Large TSSOP Description The ST232 is a 2 driver, 2 receiver device . following EIA/TIA-232 and V.28 communication standard. It is particularly suitable for applications where ±12V
online unter www.maxim-ic.com Erste 3V, 1µA Schnittstelle für RS-232 und RS-485 Ideal für Netzwerke, Kassensysteme und Industrieanlagen Die Multiprotokoll-Schnittstellen-ICs MAX3160/MAX3161/MAX3162 bieten die Kommunikations- möglichkeit über RS-232- oder RS-485-/RS-422
connected to the microcontroller. a o l a o i d d A MikroElektronika MAX232Board MAX232 Board A standard serial interface RS232C for a PC uses voltage levels in a range between -12V and +12V. For the serial signal used by this standard, a voltage ranging between -3 and -
time to generate the data (0.5ms) usleep(READ_GRACE_TIME); } } while (!flow_active && (++reads <= max_reads)); // indicate that the client cannot receive any more data ftdi_setrts(device->ftdic, 0); if (ret < 0) { return FT232_ERR_READ; } if (read_bytes == 0 && reads >= max_reads) { // indicate a timeout
AD7356_SDO_B => AD7356_56_SDO_B); --------- select ADC --------------------------------- RW_Adress_max_5bits <= to_integer(unsigned(FT232RL_byte_rcv(7 downto 3))); process begin wait until rising_edge(clk80); if FT232RL_start_rcv = '1' then if RW_Adress_max_5bits > 18 then RW_Adress_max <= 2**18-1; else RW_Adress_max <= 2**RW_Adress_max_5bits-1; end if; ADC_select <= FT232RL_byte_rcv(2 downto 0); end if; case ADC_select is when "001" => ADC_data <= AD7356_1_data; ADC_data_ready <= AD7356_12_data_ready; when "010
AD7356_SDO_B => AD7356_56_SDO_B); --------- select ADC --------------------------------- RW_Adress_max_5bits <= to_integer(unsigned(FT232RL_byte_rcv(7 downto 3))); process begin wait until rising_edge(clk80); if FT232RL_start_rcv = '1' then if RW_Adress_max_5bits > 18 then RW_Adress_max <= 2**18-1; else RW_Adress_max <= 2**RW_Adress_max_5bits-1; end if; ADC_select <= FT232RL_byte_rcv(2 downto 0); end if; case ADC_select is when "001" => ADC_data <= AD7356_1_data; ADC_data_ready <= AD7356_12_data_ready; when "010
operate from 1200 bit/s to 115.2 kbit/s. This is used when no external clock is not available as As RS232 level converter, EIA232 or MAX232 or in RS232 IR-dongle applications. For programming equivalent are recommended. the BR/D pin has to be set active, BR/D = 1. When using the TOIM4232 directly connected
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