EM78P447S
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 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 × 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:
* 28 pin DIP 600 mil
: EM78P447SAP
* 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
This specification is subject to change without prior notice.
4
06.25.2003 (V1.1)
ELAN [ ELAN MICROELECTRONICS CORP ]
