用途廣泛義隆單片機(jī)em78p447 dip32

品牌型號(hào)批號(hào)封裝營(yíng)銷方式產(chǎn)品性質(zhì)處理信號(hào)工藝導(dǎo)電類型集成程度

elan	em78p447sbp
2010+	dip32
現(xiàn)貨	熱銷
數(shù)字信號(hào)	半導(dǎo)體集成
雙極型	中規(guī)模

iption

em78p447s is an 8-bit microprocessor with low-power and high-speed cmos technology. it is equipped with 4k x 13-bits electrical one time programmable read only memory (otp-rom). it provides a protection bit to prevent user’s code in the otp memory from being intruded. seven option bits are also available to meet user’s requirements. with its otp-rom feature, the em78p447s is able to offer a convenient way of developing and verifying user’s programs. moreover, user can take advantage of elan writer to easily program his development code.

features

operating voltage range: 2.3v~5.5v. operating temperature range: -40°c~85°c. operating frequency range( base on 2 clocks) * crystal mode: dc~20mhz at 5v, dc~8mhz at 3v, dc~4mhz at 2.3v. * rc mode: dc~4mhz at 5v, dc~4mhz at 3v, dc~4mhz at 2.3v. low power consumption: * less then 2.2 ma at 5v/4mhz * typically 30 µa, at 3v/32khz * typically 1 µa, during sleep mode 4k x 13 bits on chip rom one security register to prevent intrusion of otp memory codes one configuration register to accommodate user’s requirements 148× 8 bits on chip registers(sram, general purpose register) 3 bi-directional i/o ports 5 level stacks for subroutine nesting 8-bit real time clock/counter (tcc) with selective signal sources, trigger edges, and overflow interrupt two clocks per instruction cycle power down (sleep) mode two available interruptions * tcc overflow interrupt * external interrupt programmable free running watchdog timer 10 programmable pull-high pins 2 programmable open-drain pins 2 programmable r-option pins package types: * 20 pin dip 300 mil : em78p447sdp * 20 pin sop 300 mil : em78p447sdm * 24 pin skinny dip 300 mil : em78p447sck * 24 pin sop 300 mil : em78p447scm * 28 pin dip 600 mil : em78p447sap * 28 pin skinny dip 300 mil : em78p447sak * 28 pin sop (soic) 300 mil : em78p447sam * 28 pin ssop 209 mil : em78p447sas * 32 pin dip 600 mil : em78p447sbp * 32 pin sop (soic) 450 mil : em78p447sbwm 99.9% single instruction cycle commands the transient point of system frequency between hxt and lxt is around 400khz