3

Pin Descriptions

PIN

FUNCTION

Power Supply Input 5V

±10%, (5V ±5% HIN207).

V+

Internally generated positive supply (+10V nominal).

V-

Internally generated negative supply (-10V nominal).

GND

Ground Lead. Connect to 0V.

C1+

External capacitor (+ terminal) is connected to this lead.

C1-

External capacitor (- terminal) is connected to this lead.

C2+

External capacitor (+ terminal) is connected to this lead.

C2-

External capacitor (- terminal) is connected to this lead.

Transmitter Inputs. These leads accept TTL/CMOS levels. An internal 400k

Ω pull-up resistor to V

Transmitter Outputs. These are RS-232 levels (nominally

±10V).

Receiver Inputs. These inputs accept RS-232 input levels. An internal 5k

Ω pull-down resistor to GND is connected to each input.

Receiver Outputs. These are TTL/CMOS levels.

EN, EN

Receiver enable Input. With EN = 5V (HIN213 EN = 0V), the receiver outputs are placed in a high impedance state.

SD, SD

Shutdown Input. With SD = 5V (HIN213 SD = 0V), the charge pump is disabled, the receiver outputs are in a high impedance state

(except R4 and R5 of HIN213) and the transmitters are shut off.

NC

No Connect. No connections are made to these leads.

HIN202, HIN206, HIN207, HIN208, HIN211, HIN213