EM78871
8-bit Micro-controller
‧ Compatible with Bellcore special report SR-TSV-002476
‧ Call-Waiting (2130Hz plus 2750Hz) Alert Signal Detector
‧ Good talkdown and talkoff performance
‧ Sensitivity compensated by adjusting input OP gain
ꢁLCD (8x80, 9x80, 16x80, 24x72)
‧ Maximum common driver pins : 16/24
‧ Maximum segment driver pins : 80(SEG0..SEG79)/72(SEG8..SEG79)
‧ Shared COM16 ~ COM23 pins with SEG0 ~ SEG7 pins
‧ 1/4 bias for 8, 9 and 16 common mode and 1/5 bias for 24 common mode
‧ 1/8, 1/9, 1/16, 1/24 duty
‧ 16 Level LCD contrast control (software)
‧ Internal resistor circuit for LCD bias
‧ Internal voltage follower for better display
ꢁDie type
‧ 132 pin die : EM78871H
‧ 128 pin package : (EM78871AQ POVD disable, EM78871BQ POVD enable)
III.Application
1. adjunct units
2. answering machines
3. feature phones
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* This specification is subject to be changed without notice.
5
8/23/04 (V1.5)
ELAN [ ELAN MICROELECTRONICS CORP ]
