EM78P468LAQ EMC [ELAN Microelectronics Corp], EM78P468LAQ Datasheet - Page 6

• Manufacturer Part Number: EM78P468LAQ
• Description: 8-BIT Microcontroller
• Manufacturer: EMC [ELAN Microelectronics Corp]

EM78P468L
8-BIT Microcontroller
2 •
8-level stack for subroutine nesting
8-bit real time clock/counter (TCC)
One infrared transmitter/PWM generator function
Four sets of 8 bits auto reload down-count timer can be used as interrupt sources
Programmable free running on chip watchdog timer (WDT). This function can
operate on Normal, Green and Idle mode.
Operation modes:
Input port wake up function (PORT6, PORT8). Working on Idle and leep mode.
Eight interrupt sources, three external and five internal.
Packages:
16 bi-directional tri-state I/O ports shared with LCD segment output pin.
Counter 1: independent down-count timer
Counter 2, High Pulse Width Timer (HPWT), and Low Pulse Width Timer
(LPWT) shared with IR function.
Normal mode: The CPU operated on frequency of main oscillator (Fm)
Green mode: The CPU operated on frequency sub-oscillator (Fs) and main
oscillator (Fm) stop.
Idle mode: CPU idle, LCD display remains working
Sleep mode: whole chip stop working.
Internal interrupt source : TCC; Counter 1,2; High/Low pulse width timer.
External interrupt source : INT0, INT1 and Pin change wake-up (Port 6 and
Port 8)
Dice form : 59 pin
QFP-64 pin : EM78P468NQ (Body 14mm*20mm)
QFP-64 pin : EM78P468LQ (Body 14mm*20mm)
LQFP-64 pin : EM78P468NAQ (Body 7mm*7mm)
LQFP-64 pin : EM78P468LAQ (Body 7mm*7mm)
LQFP-44 pin : EM78P468NBQ (Body 10mm*10mm)
LQFP-44 pin : EM78P468LBQ (Body 10mm*10mm)
QFP-44 pin : EM78P468NCQ (Body 10mm*10mm)
QFP-44 pin : EM78P468LCQ (Body 10mm*10mm)
(This specification is subject to change without further notice)
Product Specification (V1.0) 03.15.2006