SN75C1406

Application

The TIA/EIA-232-F specification is for data interchange between a host computer and a peripheral at signaling rates up to 20 kbit/s. Many TIA/EIA-232-F devices will operate at higher data rates with lower capacitive loads (short cables). For reliable operation at greater than 20 kbit/s, the designer needs to have control of both ends of the cable.By mixing different types of TIA/EIA-232-F devices and cable lengths, errors can occur at higher frequencies (above 20 kbit/s). When operating within the TIA/EIA-232-F requirements of less than 20 kbit/s and with compliant line circuits, interoperability is assured. For applications operating above 20 kbit/s, the design engineer should consider devices and system designs that meet the TIA/EIA-232-F requirements.


Pinout




Specifications

Supply voltage, V_DD  (see Note 1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
Supply voltage, V_SS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
Supply voltage, V_CC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage range, V_I : Driver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_SS  to V_DD
                                        Receiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V to 30 V
Output voltage range, V_O : Driver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  (V_SS 6 V) to (V_DD + 6 V)
                                           Receiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to (V_CC + 0.3 V)
Package thermal impedance, q JA (see Note 2): D package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
DW package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57°C/W
N package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
NS package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  260°C
Storage temperature range, T_stg  65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   °C to 150° C


Description

The SN75C1406 is a low-power BiMOS device containing three independent drivers and receivers that are used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). This device is designed to conform to TIA/EIA-232-F. The drivers and receivers of the SN75C1406 are similar to those of the SN75C188 quadruple driver and SN75C189A quadruple receiver, respectively. The drivers have a controlled output slew rate that is limited to a maximum of 30 V/m s, and the receivers have filters that reject input noise pulses shorter than 1 m s. Both these features eliminate the need for external components.

The SN75C1406 is designed using low-power techniques in a BiMOS technology. In most applications, the receivers contained in these devices interface to single inputs of peripheral devices such as ACEs, UARTs,or microprocessors. By using sampling, such peripheral devices are usually insensitive to the transition times of the input signals. If this is not the case, or for other uses,it is recommended that the SN75C1406 receiver outputs be buffered by single Schmitt input gates or single gates of the HCMOS, ALS, or 74F logic families.

The SN75C1406 is characterized for operation from 0°C to 70°C.