STPM01

2/9

Figure 1: Pin Configuration

Table 2: Pin Description

PlN N°

SYMBOL

NAME AND FUNCTION

1, 2

MON, MOP

Motor pulse outputs. These outputs are used to driver in impulse counter or a stepper

motor. They can also be used for reactive energy pulses LED indicator, or for output

Σ∆

signal of analog current/voltage channel respectively, or for test mode i/o

Σ∆ signal for

analog current/ voltage channel respectively

3SCS

Chip select - data transmission enable: a falling edge in this pin places the device in

communication mode. Bringing SCS high places the serial bus in high impedance

4

Output of internal LowDrop regulator and power supply for digital core

5

Ground: this pin provides a supply return and analog signal reference level.

6

Positive Power Supply. Typically +5V

7

Power for programming OTP cells

8

Output of internal LowDrop regulator and power supply for analog core and OTP cells

9, 10

Analog input: +and – current (respectively) channel 1

11, 12

Analog input: +and – current (respectively) channel 2

13, 14

Analog input: +and – voltage (respectively) intended for use with the voltage transducer

15

SYN

Select data in or data out on SDA or Measurement latching for transmission or output

for negative power

16

CLKIN

Input of internal crystal oscillator or input for external measure clock or current setting

input for internal RC oscillator

17

CLKOUT

Output of internal RC or crystal oscillator

18

SCL/NLC

Serial clock input for the synchronous serial interface or for No Load Condition Led

indicator

19

SDA/TD

Serial Data. Send and receiver data synchronous within CLK, or Tamper Detected Led

indicator

20

LED

Signal for active energy pulses LED indicator or signal of analog current channel

multiplex (available only when used as peripheral and if

Σ∆ signal outputs are selected)