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Numéro de référence | EM78267A | ||
Description | 8-BIT MICRO-CONTROLLER | ||
Fabricant | EMC | ||
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DESCRIPTION
EM78267/467A/B/C
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
Preliminary
The EM78267/467 A/B/C is an 8-bit microprocessor with low-power, high speed CMOS technology. Integrated
onto a single chip are on-chip watchdog timer (WDT), RAM, ROM, programmable real time clock/counter,
power down mode and bi-directional tri-state I/O ports. It can be developed as cordless phone or other applications.
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 EM78267/467A) (24 I/O pins for EM78267/467B)
(22 I/O pins for EM78267/467C)
• 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
• Programmable wake up from sleep circuit on I/O ports
• Programmable free running on-chip watchdog timer
• Ten pull-up and wake-up pins
• Two open-drain pins
• Two R-option pins
• Interrupt function available
• 28 pin DIP, SOIC, SSOP
(EM78267/467A)
28 pin SOIC
(EM78267/467C)
32 pin DIP, SOIC
(EM78267/467B)
* This specification are subject to be changed without notice.
9.30.1997 1
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Pages | Pages 19 | ||
Télécharger | [ EM78267A ] |
No | Description détaillée | Fabricant |
EM78267 | 8-BIT MICRO-CONTROLLER | EMC |
EM78267A | 8-BIT MICRO-CONTROLLER | EMC |
EM78267B | 8-BIT MICRO-CONTROLLER | EMC |
EM78267C | 8-BIT MICRO-CONTROLLER | EMC |
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