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Figure 1.

Microcontrollers section

Figure 1.
Microcontrollers section
+5.0 VB
IrDA section
IROUT
Schematic diagram
IRIN 63 62 61 60
OSC1 59 58
NERTC
STEVAL-IPE009V1
PWM3 / PB0
PWM2 / PB1
PWM1 / PB2
PWM0 / PB3
Multi-tariff single-phase meter
ST72F321BR9T6
ARTCLK / PB4
ARTIC1 / PB5
ARTIC2 / PB6
AIN0 / PD0
AIN1 / PD1
AIN2 / PD2
AIN3 / PD3
AIN7 / PD7 AIN6 / PD6 AIN5 / PD5 AIN4 / PD4 31 PF6 32 PF7 30 PF5 R1 PFD 10 k C25 100 nF R2 10 k
MCU oscillator / reset
R35 4.7 K RESET
Schematic diagram
17 PD4
X1 OSC1 1 2 3 16 MHz C31 10 nF SW2 OSC2
Schematic - microcontroller and IrDA section, MCU oscillator / reset
18 19 20 21 22 PD5 PD6 PD7
C24 100 nF
+5.0 VB
AM00281
STEVAL-IPE009V1
Figure 2.
Power management section
D12 DZ1 9.1 VZ D2 600 V 1A 1N4148 + C1 100 µF STTH1L06 C3 50 V PFD U2 L78L05AC D13 10 µF 1 MH L1 250 mA 1N4148 + C10 100 µF 25 V 8 V V 7 IN OUT 6 GND GND GND GND 5 NC NC C9 100 nF 25 V D11 1N4148 1 2 3 4 C4 25 V 100 nF R3 22E 0.25 W D3 LL4148 L1 BC1 470 µH 100 MA
STEVAL-IPE009V1
+5.0 V
+5.0 VB D4 BAT49 R4 5 K BT1 3 + C11 100 µF 4.8 V 1 L2 1 µH 150 mA 2
RF1 8 7 6 5 VIPER12ADIP
1 C6 1 µF 450 V D8 STTH1L06 C8 47 µF DZ2 600 V 1A 25 V 10 VZ C7 1 µF 450 V
PHASE
1000 V 1000 V 1A 1A
RV1 275 V 8.6 J
Mains 230 VAC
U7C 14 5 7 74HC04 74HC04 74HC04 74HC04 7 7 7 6 9 8 11 10 13 12 14 14 14 U7D U7E U7F
Not used
74HC04
RTC / memory SPI block
+5.0 VB R37 EMEM SDO 15 pF 3 BT2 BATTERY 3 V 1
AM00282
+5.0 VB
C28 Y2 32.768 KHz
Schematic - power management, RTC / memory SPI block
U5 15 pF C29 1 M NERTC IRQRTC SDI SCL SDO M41T94
+5.0 VB
C30+ 100 nF
SCL SDI 2
Schematic diagram
C27 100 nF
M95256
VCC 16 XI 15 XO NE 14 NRST NIRQ / FT / OUT 13 WDI THS 12 NRSTIN1 SDI 11 NRSTIN2 SQW 10 VBAT SCL 9 VSS SDO
Measurement section
Schematic diagram
Figure 3.
+5.0 V
IRQSTPM 20 MON 1 2 4 5 6 8 7 9 10 LED MON MOP VDDD VSS VCC VDDA VOTP Ilp1 Iln1 Sda Scl Scs Syn CLKout CLKin VIN Vip Iln2 Ilp2 R11 2, 21 K C21 15 pF R19 150 K C26 33 nF 19 TMPD 18 NLCD SCS 3 NPD 15 17 16 14 13 12 11 Y1
4.194304 MHz 1 M R12 C22 15 pF
IRQSTPM TP1 LED MON F TP2 MON
LCD block
ICC / STPM01 connectors
J6 VOTP JA1
R25 56 K R28 56 K R27 56 K R26 56 K +5.0 VB COM4 COM3 R32 56 K R31 56 K COM1 COM2 R34 56 K R33 56 K
R36 10 K OSC1 RESET
VPP TMPD SCS NLCD +5.0 V NPD ICCCL K ICCDATA ICP connector
+5.0 VB
COM4 COM3 COM2 COM1 PF4 PD6 PD4 PD2 PD0 PB6 PB4 PB2 PB0 PE6
PA4 PA5 PF7 PF6 PF5 PD7 PD5 PD3 PD1 PB7 PB5 PB3 PB1 PE7
C32 100 nF
Schematic - measurement section, LCD block, ICC / STPM01 connectors
AM00283
STEVAL-IPE009V1
Schematic diagram
SCI-interface
Figure 4.
J2 1 2 CON2 C2 100 nF 50 V U1 1 2 3 4 5 6 7 8 C1+ VDD V+ GND C1- T1OUT C2+ R1IN C2- R1OUT V- T1IN T2OUT T2IN R2IN R2OUT ST232C RS232 16 15 14 13 12 11 10 9 C1 100 nF 50 V P1 1 6 2 7 3 8 4 9 5 J1 IROUT IRIN 2 1 CON2
Schematic - SCI-interface
+5.0V
+5.0 V +5.0 V +5.0 V R3 39 R4 10 K R2 220 2 Q2 PHOTO NPN 1 1
AM00284
R5 10 k 3 2 1 IROUT IRIN Q3 BC847 R1 3 k 2
) LN01201CAL(U)
1 3 Q1 BC847