Microcontroller

LG631-9R Datasheet – OICTMSA002I, Microcontroller, EEPROM

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Part Number: LG631-9R, LG6319R

Function: EEPROM for LG TV

Package: DIP 64 Pin

Manufacturers: LG

Image:LG631-9R

Description

The LG631-9R is an EEPROM (Electrically Erasable Programmable Read-Only Memory) device that retains stored information even when power is removed. It is typically mounted in a DIP (Dual In-line Package) with 16 pins, making it suitable for through-hole PCB designs and easy replacement during servicing.

The IC is a single-chip video and sound processor IC with a built-in microcontroller that supports all of the different worldwide broadcasting systems. The IC provides fully integrated solution to rationalize the design of color TV sets, increase productivity, and reduce total costs.

In LG TVs, this EEPROM is used to store:

1. Firmware configuration parameters

2. Factory calibration data (white balance, panel settings, etc.)

3. Region and model-specific settings

4. User settings (in some architectures)

5. Error logs / service mode data

LG631 9R 55Y7 = OICTMSA002B

LG631 9R 56N1 = OICTMSA002C

LG631 9R 57C0 = OICTMSA002D

LG631 9R 57Z2 = OICTMSA002F

LG631 9R 59H2 = OICTMSA002I

LG631 9R 5AV6 = OICTMSA002K

If corrupted, the TV may show:

1. No boot / stuck logo

2. Incorrect panel display

3. Loss of HDMI or tuner functionality

Block Diagram

LG631-9R datasheet pinout

LG631-9R Pinout

1. SIF OUT 1.7V
2. VIF AGC 1.2V
3. SIF IN 3.1V
4. FM FILTER 2.2V
5. FM OUT 2.3V
6. A.OUT/S.OUT TO AMP 2.2V
7. SIF-APC 2.1V
8. IF VCC 4.9V
9. AUDIO IN/AV IN 2.2V
10. ABL IN 5V
11. RGB VCC 8.2V
12. R OUT 1.4V
13. G OUT 1.4V
14. B OUT 3.1V
15. GND
16. V.RAMP 2.1V
17. V.OUT 2.3V
18. VCO IREFF 1.6V
19. H. VCCC 5V
20. H.AFC 2.6V
21. H. OUT 0.4V
22. GND 23. N.C
23. N.C
24. N.C
25. 5V
26. I.R IN 4.8V
27. N.C
28. PAL/NTSC 5V
29. PWR ON/OFF 4.7V
30. I REFF OV
31. SDA 5V
32. SCL 5V
33. XTALL IN 1.5V
34. XTALL OUT 3V
35. VCC CPU 5V
36. MUTE OV
37. N.C
38. N.C
39. KEY 5V
40. RESET 4.5V
41. PLL 2.9V
42. GND
44. FBP IN 1.1V
43. 5V
45. 2.4V
46. 2.5V
47. APC2-F 2.5V
48. 2.5V
49. 2.6V
50. XTALL 3V
51. 2.7V
52. N.C 2.8V
53. APC FILTER 3.5V
54. VIDEO IN/AV IN 2.5V
55. VCC 5V
56. VIDEO INT 2.8V
57. BLD-F 2.7V
58. APC-F 2.3V
59. AFT-F 4.7V
60. VIDEO OUT TV 3V
62. GND
61. AGC TO TUNER 4.2V
63. VIF IN 1
64. VIF IN 2

LA76931 Datasheet

LA76931 pdf

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ATmega2560 Datasheet – 8-bit Microcontroller – Atmel

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Part Number: ATmega2560, ATmega2560-16AU

Function : 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash

Package: TQFP 100,  CBGA 100 Type

Manufacturer: ATmel

Image

atmega2560-microcontroller

Description

The ATmega2560 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega640 / 1280 / 1281 /  ATmega2560 / 2561 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 256 KB ISP flash memory, 8 KB SRAM, 4 KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real-time counter, six flexible timer/counters with compare modes, PWM, four USARTs, byte-oriented Two-Wire serial interface, 16-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging.

 

Pinout

atmega2560-datasheet-pinout

 

Features

1. High Performance, Low Power Atmel AVR® 8-Bit Microcontroller

2. Advanced RISC Architecture

– 135 Powerful Instructions – Most Single Clock Cycle Execution

– 32 × 8 General Purpose Working Registers

– Fully Static Operation

– Up to 16 MIPS Throughput at 16MHz

– On-Chip 2-cycle Multiplier

3. High Endurance Non-volatile Memory Segments

– 64K/128K/256KBytes of In-System Self-Programmable Flash

– 4Kbytes EEPROM

– 8Kbytes Internal SRAM

– Write/Erase Cycles:10,000 Flash/100,000 EEPROM

– Data retention: 20 years at 85C/ 100 years at 25C

– Optional Boot Code Section with Independent Lock Bits

4. In-System Programming by On-chip Boot Program

5. True Read-While-Write Operation
– Programming Lock for Software Security

6. Endurance: Up to 64Kbytes Optional External Memory Space • Atmel® QTouch® library support

– Capacitive touch buttons, sliders and wheels

– QTouch and QMatrix acquisition

– Up to 64 sense channels

 

Ordering Information

atmega2560-ordering-information

 

Reference Site:

1. https://www.microchip.com/en-us/product/atmega2560

2. https://www.arduino.cc/en/Main/ArduinoBoardMega2560

 

ATmega2560 Datasheet PDF


 

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