EM78P458AP datasheet(4/76 Pages) EMC

4 / 76 page

EM78P458/459

OTP ROM

2. FEATURES

• Operating voltage range: 2.3V~5.5V

• Operating temperature range: 0

°C~70°C

• Operating frequency range(base on 2 clocks):

* Crystal mode: DC ~ 20MHz/2clks,5V; DC ~ 8MHz/2clks,3V

* RC mode: DC ~ 4MHz/2clks,5V; DC ~ 4MHz/2clks,3V

• Low power consumption:

* Less than 1.5 mA at 5V/4MHz

* Typically 15

µA, at 3V/32KHz

* Typically 1

µA, during sleep mode

• 4K

× 13 bits on chip ROM

• 84

× 8 bits on chip registers (SRAM)

• 2 bi-directional I/O ports

• 8 level stacks for subroutine nesting

• 8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt

• 8-bit multichannel Analog-to-Digital Converter with 8-bit resolution

• Dual Pulse Width Modulation (PWM ) with 10-bit resolution

• One pair of comparators

• Power-down (SLEEP) mode

• Six available interruptions

* TCC overflow interrupt

* Input-port status changed interrupt (wake up from the sleep mode)

* External interrupt

* ADC completion interrupt

* PWM period match completion

* Comparator high interrupt

• Programmable free running watchdog timer

• 8 Programmable pull-down I/O pins

• 7 programmable pull-high I/O pins

• 8 programmable open-drain I/O pins

• Two clocks per instruction cycle

• Package types:

This specification is subject to change without prior notice.

06.25.2004 (V1.4)

EM78P458AP Datasheet(PDF) 4 Page - ELAN Microelectronics Corp