Sonic Alert msm85c154hvs Clock Radio User Manual


 
MSM80C154S/83C154S/85C154HVS
6
Timer/counters (three 16-bit timer/counters)
(1) 8-bit timer with 5-bit prescalar
(2) 16-bit timer
(3) 8-bit timer with 8-bit auto-reloader
(4) 8-bit separate timer
(5) 16-bit timer with 16-bit auto-reloader
(6) 16-bit capture timer
(7) 16-bit baud rate generator timer
(8) 32-bit timer
Wide operating temperature range –40 to +85°C
Wide operating voltage range
(1) When operating: VCC=+2.2 to 6V (varies according to frequency)
(2) When stopped:
VCC=+2 to +6V (PD or HPD mode)
Instruction execution cycle
(1) 2-byte 1-machine cycle instructions
(2) Multiplication/division instructions
• Direct initialization of ports 0, 1, 2, and 3 by input of reset signal even if oscillator have been
stopped.
(All ports output “1”.)
High noise margin (with Schmitt trigger input for each I/O)
40-pin plastic DIP/44-pin plastic flat package/44-pin plastic PLCC/44/pin plastic TQFP
Software compatibility with MSM80C31F and MSM80C51F