EM78P911A数据手册Elan中文资料规格书

描述 Description

The EM78P911A is an 8-bit CID (Call Identification) RISC type microprocessor with low power, high speed CMOS technology. Integrated onto a single chip are on-chip watchdog (WDT), RAM, ROM, programmable real time clock /counter, internal interrupt, power down mode, LCD driver, FSK decoder, CALL WAITING decoder, SDT decoder, DTMF generator, MEI (Multiple Extension Internetworking) and RTF (Request To Flash) functions, and tri-state I/O. The EM78P911A provides a single chip solution to design a CID of calling message display.

特性 Features

CPUOperation voltage range: 2.5V ~ 5.5V
16K x 13 on chip Electrical One Time Programmable Read OnlyMemory (OTP-ROM)
2.8K x 8 on chip RAM
Up to 36 bi-directional tri-state I/O ports
8 level stack for subroutine nesting
8-bit real time clock/counter (TCC)
Two sets of 8 bit counters can be interrupt sources
Selective signal sources and trigger edges, and with overflow interrupt
Programmable free running on chip watchdog timer
99.9% single instruction cycle commands 
Four operation modes:
Ring on voltage detector
Universal Low battery detector
Input port wake up function
 interrupt sources, 4 external, 5 internal
100 pin QFP or chip
Port key scan function
Clock frequency 32.768KHz
Eight R-option pins
CID
Operation Voltage3.5 °6V for FSK
Operation Voltage2.5 °6V for DTMF
Bell 202, V.23 FSK demodulator
DTMF generator
Ring detector on chip
Call Waiting
Operation Voltage3.6 °5.5V 
Compatible with Bell-core special report SR-TSV-002476
Call-Waiting (2130Hz plus 2750Hz) Alert Signal Detector
Good talk-down and talk-off performance
Sensitivity compensated by adjusting input OP gain
Minimum access frequency deviation ∮ 0.5% for U.S. Call waiting spec. (EM78P911A)
SDT
Stuttered Dial Tone (350Hz plus 440Hz) signal detection
MEI / RTF
Compatible with TIA/EIA-777 (TIA SP-4078)
MEI (Multiplex Extension Internetworking) and RTF (Request To Flash)
LCD

LCD operation voltage chosen by software
Common driver pins: 16
Segment driver pins: 60
1/4 bias
1/8,1/16 duty
Package

100 pin QFP (EM78P911AAQ, POVD disable) (EM78P911ABQ, POVD enable) 
100 pin Chip or 102 pins Chip (with MEI and RTF functions)
100 pin QS/QJ (EM78P911AAQ, POVD disable) (EM78P911ABQ, POVD enable)
S/J: Green product does not contain hazardous substances.
The third edition of S: Sony SS-00259 or J: RoHS standard
* Pb content should be less the 100ppm. Pb content to fit with Sony or RoHS spec