EM78P159N
8-Bit Microcontrollerwith OTP ROM
Low power consumption:
• Less then 2mA at 5V/4MHz
• Typically 20μA at 3V/32kHz
• Typically 1μA during Sleep mode
1K × 13 bits on chip ROM
One security register to prevent intrusion of OTP memory codes
One configuration register to accommodate user’s requirements
48× 8 bits on chip registers (SRAM, general purpose register)
2 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
Three available interruptions:
• TCC overflow interrupt
• Input-port status changed interrupt (wake up from Sleep mode)
• External interrupt
Programmable free running watchdog timer
8 programmable pull-high pins
8 programmable pull-down pins
8 programmable open-drain pins
2 programmable R-option pins
Package types:
• 18 pin DIP 300mil : EM78P159NP
• 18 pin SOP 300mil : EM78P159NM
• 20 pin SSOP 209mil : EM78P159NAS
• 20 pin SSOP 209mil : EM78P159NKM
99.9% single instruction cycle commands
The transient point of system frequency between HXT and LXT is around 400kHz
2•
Product Specification (V1.0) 03.10.2006
(This specification is subject to change without further notice)