DESCRIPTION
EM78P267/467A/B/C 8-BIT MICRO-CONTROLLER FOR CONSUMER PRODUCT
Preliminary
The EM78P267/467A/B/C is an 8-bi...
DESCRIPTION
EM78P267/467A/B/C 8-BIT MICRO-CONTROLLER FOR CONSUMER PRODUCT
Preliminary
The EM78P267/467A/B/C is an 8-bit microprocessor with low-power, high speed
CMOS technology. There are 4Kx13 bits Electical One Time Programmable Read Only Memory (OTP-ROM) within it. It provides 1 Protect bit and 6 One-time Programmable Option bits to protect the OTP memory code from any external access as well as the user's options. The OTP ROM will be incorporated into EM78P267/467A/B/C 8-bit microcontroller instead of it's original memory. The user's development program can be easily programmed into or verify from this OTP memory by using EMC OTP PROGRAMMER.
FEATURES
Operating
voltage range: 2.5V~5.5V
Available in temperature range: 0°C~70°C
Operating frequency range:
Crystal Type: DC~20MHz at 5V
DC~8MHz at 3V
RC Type:
DC~4MHz at 5V
DC~4MHz at 3V
2Kx13 on chip ROM (EM78267A/B/C)
4Kx13 on chip ROM (EM78467A/B/C)
9 special function registers
148x8 general purpose registers (SRAM)
3 bi-directional tri-state I/O ports (20 I/O pins for EM78P267/467A) (24 I/O pins for EM78P267/467B)
(22 I/O pins for EM78P267/467C)
5 level stack for subroutine nesting
8-bit real time clock/counter (TCC) with selective signal sources and trigger edges, and with overflow interrupt
Selectable oscillator options:
XTAL1 type (High frequency)
XTAL2 type (32.768KHz)
RC type
External clock input
Two oscillator periods per instruction cycle
Power down mode
Programma...