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CMX850 Communications Controller:
Features
· 8051 mC with internal 8K XRAM and up to 35 GPIO
· 64K address, bank switchable to many Mbytes
· Interfaces for external RAM, LCD controller
· V.22bis, V.22, V.23, V.21 (and Bell) integral modem
· DTMF/Tones transmit and receive
· Line and Phone differential amplifiers
· Dual clocks with separate Xtals
· CAS Tones detection and generation
· Line reversal / Ring detection
· Off-hook detector
· Low power operation
· Advanced power management features
· Watchdog timer
· Real-time clock and alarm function
· Standard 8051 UART and timers
· 2 input 10-bit A to D converter
· Keyboard encoder (16 x 8 matrix max)
· 2 x low power PWM outputs
· Small footprint: 100-pin LQFP
E-mail: info@telesys.ru