EM78P156N Datasheet PDF – 8-Bit Microcontroller – Elan

Part Number : EM78P156N

Function : 8-Bit Microcontroller

Package :  18 Pin DIP Type

Manufactures : ELAN Microelectronics


EM78P156N datasheet


EM78P156N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS technology. It is equipped with 1K*13-bits Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides three PROTECTION bits to prevent user’s code in the OTP memory from being intruded. 8 OPTION bits are also available to meet user’s requirements.


EM78P156N pinout


1. Operating voltage range : 2.5V~5.5V
2. Operating temperature range : -40 °C~85°C
3. One security register to prevent intrusion of OTP memory codes
4. One configuration register to accommodate user’s requirements
5. 48× 8 bits on chip registers (SRAM, general purpose register)
6. 2 bi-directional I/O ports
7. 5 level stacks for subroutine nesting


Other data sheets within the file : EM78P156NP, EM78P156NM, EM78P156NAS, EM78P156NKM

EM78P156N Datasheet PDF

EM78P156N pdf

16F877A Datasheet PDF – Microcontroller – Microchip

Part Number : 16F877A

Function : 28/40/44-Pin Enhanced Flash Microcontroller

Package : 40Pin DIP, 44-Pin QFN

Manufacturers : Microchip Technology

Image :

16F877A Microcontroller



Description :

PIC16F873A/876A devices are available only in 28-pin packages, while 16F874A / 16F877A devices are available in 40-pin and 44-pin packages. There are three memory blocks in each of the PIC16F87XA devices. The program memory and data memory have separate buses so that concurrent access can occur and is detailed in this section. The PIC16F87XA devices have a 13-bit program counter capable of addressing an 8K word x 14 bit program memory space. The PIC16F876A/877A devices have 8K words x 14 bits of Flash program memory, while PIC16F873A/874A devices have 4K words x 14 bits. Accessing a location above the physically implemented address will cause a wraparound.


16F877A pinouts

16F877A Datasheet

Special Microcontroller Features:

1. 100,000 erase/write cycle Enhanced Flash program memory typical
2. 1,000,000 erase/write cycle Data EEPROM memory typical
3. Data EEPROM Retention > 40 years
4. Self-reprogrammable under software control
5. In-Circuit Serial Programming (ICSP) via two pins
6. Single-supply 5V In-Circuit Serial Programming
7. Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
8. Programmable code protection
9. Power saving Sleep mode
10. Selectable oscillator options
11. In-Circuit Debug (ICD) via two pins


16F877A Datasheet PDF Download

16F877A pdf


Other data sheets within the file : PIC16F873, PIC16F874, PIC16F876, PIC16F877