(China (Mainland))
Product Summary
The em78p447samj-g is an 8-bit microprocessor with low-power and high-speed CMOS technology. It is equipped with 4K 13-bits Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a PROTECTION bit to prevent users code in the OTP memory from being intruded. Seven OPTION bits are also available to meet users requirements. With its OTP-ROM feature, the em78p447samj-g is able to offer a convenient way of developing and verifying users programs. Moreover, user can take advantage of ELAN Writer to easily program his development code.
Parametrics
em78p447samj-g absolute maximum ratings: (1)Temperature under bias: 0°C to 70°C; (2)Storage temperature: -65°C to 150°C; (3)Input voltage: -0.3V to +6.0V; (4)Output voltage: -0.3V to +6.0V; (5)Operating Frequency (2clk): DC to 20MHz.
Features
em78p447samj-g features: (1)Operating voltage range: 2.3V~5.5V.; (2)Operating temperature range: 0°C~70°C.; (3)Operating frequency range( base on 2 clocks); (4)4K × 13 bits on chip ROM; (5)One security register to prevent intrusion of OTP memory codes; (6)One configuration register to accommodate user’s requirements; (7)148× 8 bits on chip registers(SRAM, general purpose register); (8)3 bi-directional I/O ports; (9)5 level stacks for subroutine nesting; (10)8-bit real time clock/counter (TCC)with selective signal sources, trigger edges, and overflow interrupt; (11)Two clocks per instruction cycle; (12)Power down (SLEEP)mode; (13)Two available interruptions; (14)Programmable free running watchdog timer; (15)10 programmable pull-high pins; (16)2 programmable open-drain pins; (17)2 programmable R-option pins.
Diagrams
