Electronic Components Datasheet Search |
|
SP232A Datasheet(PDF) 4 Page - Sipex Corporation |
|
SP232A Datasheet(HTML) 4 Page - Sipex Corporation |
4 / 12 page Date: 10/17/ 05 SP232A Series Enhanced RS232 Transceivers © Copyright 2005 Sipex Corporation 4 Figure 1. Typical Circuit using the SP232A. FEATURES… The SP232A/233A/310A/312A devices are a family of line driver and receiver pairs that meet the specifications of RS-232 and V.28 serial protocols. The ESD tolerance has been im- proved on these devices to over ±2KV for the Human Body Model. These devices are pin-to- pin compatible with popular industry standards. The SP232A/233A/310A/312A devices feature10V/ µs slew rate, 120Kbps data rate un- der load, 0.1 µF charge pump capacitors, overall ruggedness for commercial applications, and increased drive current for longer and more flexible cable configurations. This family also features Sipex's BiCMOS design allowing low power operation without sacrificing perfor- mance. The SP232A/233A/310A/312A devices have internal charge pump voltage converters which allow them to operate from a single +5V supply. The charge pumps will operate with polarized or non-polarized capacitors ranging from 0.1 to 1 µF and will generate the ±6V needed for the RS- 232 output levels. Both meet all EIA RS-232F and ITU V.28 specifications. The SP310A provides identical features as the SP232A with the addition of a single control line which simultaneously shuts down the inter- nal DC/DC converter and puts all transmitter and receiver outputs into a high impedance state. The SP312A is identical to the SP310A with separate tri-state and shutdown control lines. THEORY OF OPERATION The SP232A, SP233A, SP310A and SP312A devices are made up of three basic circuit blocks – 1) a driver/transmitter, 2) a receiver and 3) a charge pump. Each block is described below. Driver/Transmitter The drivers are inverting transmitters, which ac- cept TTL or CMOS inputs and output the RS-232 signals with an inverted sense relative to the input logic levels. Typically the RS-232output voltage swing is ±6V. Even under worst case loading conditions of 3kOhms and 2500pF, the output is guaranteed to be ±5V, which is consistent with the RS-232 standard specifications. The transmitter outputs are protected against infinite short-circuits to ground without degradation in reliability. R2 98 R IN R OUT 2 R1 12 13 R IN R OUT 1 T2 10 7 T IN 2 T OUT 2 T1 11 14 T IN 1 T OUT 1 15 GND 400k Ω 400k Ω 3 1 C + C - 1 1 6 16 V CC V+ + + 0.1 F 6.3V µ Charge Pump +5V INPUT 2 V- 2 1 5k Ω 0.1 F 10V µ 5k Ω 5 4 C + C - 2 2 + 0.1 F 10V µ 0.1 F 6.3V µ 10 F 6.3V µ SP232A + + * *The negative terminal of the V+ storage capacitor can be tied to either VCC or GND. Connecting the capacitor to VCC (+5V) is recommended. |
Similar Part No. - SP232A_05 |
|
Similar Description - SP232A_05 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |