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EM783-SC Datasheet(PDF) 57 Page - NXP Semiconductors

Part # EM783-SC
Description  Energy metering IC; 32 kB flash, 8 kB SRAM, 4 kB EEPROM
PDF  58 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

EM783-SC Datasheet(HTML) 57 Page - NXP Semiconductors

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EM783
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2 — 17 January 2014
57 of 58
continued >>
NXP Semiconductors
EM783
Energy metering IC; 32 kB flash, 8 kB SRAM, 4 kB EEPROM
21. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
4.1
Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 3
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 5
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
7
Functional description . . . . . . . . . . . . . . . . . . 13
7.1
ARM Cortex-M0 processor . . . . . . . . . . . . . . . 13
7.2
On-chip flash program memory . . . . . . . . . . . 13
7.3
On-chip EEPROM data memory. . . . . . . . . . . 13
7.4
On-chip SRAM . . . . . . . . . . . . . . . . . . . . . . . . 13
7.5
Memory map. . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.6
Nested Vectored Interrupt Controller (NVIC) . 14
7.6.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.6.2
Interrupt sources. . . . . . . . . . . . . . . . . . . . . . . 15
7.7
IOCONFIG block . . . . . . . . . . . . . . . . . . . . . . 15
7.8
Fast general-purpose parallel I/O . . . . . . . . . . 15
7.8.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.9
USART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.9.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.10
SSP serial I/O controller . . . . . . . . . . . . . . . . . 16
7.10.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.11
I2C-bus serial I/O controller . . . . . . . . . . . . . . 17
7.11.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.12
Metrology engine . . . . . . . . . . . . . . . . . . . . . . 17
7.12.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.13
10-bit DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.13.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.14
Internal voltage reference . . . . . . . . . . . . . . . . 19
7.15
General-purpose external event
counter/timers . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.15.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.16
System tick timer . . . . . . . . . . . . . . . . . . . . . . 19
7.17
Windowed WatchDog Timer (WWDT) . . . . . . 19
7.17.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.18
Clocking and power control . . . . . . . . . . . . . . 20
7.18.1
Crystal and internal oscillators . . . . . . . . . . . . 20
7.18.1.1
Internal RC Oscillator (IRC) . . . . . . . . . . . . . . 21
7.18.1.2
Crystal Oscillator (SysOsc). . . . . . . . . . . . . . . 21
7.18.1.3
Internal Low-Frequency Oscillator (LFOsc) and
WatchDog Oscillator (WDOsc) . . . . . . . . . . . . 22
7.18.2
Clock input . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.18.3
System PLL . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.18.4
Clock output . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.18.5
Wake-up process . . . . . . . . . . . . . . . . . . . . . . 22
7.18.6
Power control . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.18.6.1
Sleep mode . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.18.6.2
Power profiles . . . . . . . . . . . . . . . . . . . . . . . . 23
7.19
System control . . . . . . . . . . . . . . . . . . . . . . . . 23
7.19.1
UnderVoltage LockOut (UVLO) protection . . . 23
7.19.2
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.19.3
Brownout detection . . . . . . . . . . . . . . . . . . . . 24
7.19.4
Code security (Code Read Protection - CRP) 24
7.19.5
APB interface . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.19.6
AHBLite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.19.7
External interrupt inputs . . . . . . . . . . . . . . . . . 24
7.20
Emulation and debugging . . . . . . . . . . . . . . . 25
8
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 25
9
Static characteristics . . . . . . . . . . . . . . . . . . . 26
9.1
Power consumption . . . . . . . . . . . . . . . . . . . 29
9.2
Peripheral power consumption . . . . . . . . . . . 31
9.3
Electrical pin characteristics. . . . . . . . . . . . . . 31
10
Dynamic characteristics. . . . . . . . . . . . . . . . . 35
10.1
Power supply fluctuations . . . . . . . . . . . . . . . 35
10.2
Power supply voltage profile . . . . . . . . . . . . . 35
10.3
Flash/EEPROM memory . . . . . . . . . . . . . . . . 38
10.4
External clock for oscillator in slave mode . . . 38
10.5
Internal oscillators . . . . . . . . . . . . . . . . . . . . . 39
10.6
I/O pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.7
I2C-bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.8
SSP interface . . . . . . . . . . . . . . . . . . . . . . . . . 42
11
Characteristics of analog peripherals. . . . . . 44
12
Application information . . . . . . . . . . . . . . . . . 47
12.1
XTAL input . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
12.2
XTAL Printed-Circuit Board (PCB) layout
guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
12.3
Standard I/O pad configuration . . . . . . . . . . . 48
12.4
Reset pad configuration . . . . . . . . . . . . . . . . . 49
12.5
UVLO protection and reset timer circuit . . . . . 50
12.6
Guidelines for selecting a power supply filter for
UVLO protection . . . . . . . . . . . . . . . . . . . . . . 50
13
Package outline. . . . . . . . . . . . . . . . . . . . . . . . 51
14
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 53
16
Revision history . . . . . . . . . . . . . . . . . . . . . . . 53
17
Legal information . . . . . . . . . . . . . . . . . . . . . . 54
17.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 54
17.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
17.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 54
17.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 55



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