-SAM88RCRI CPU core

internal storage

8-bit memory (ROM) of -4K × program.

-208 × 8-bit data memory (RAM) (including LCD data memory)

Instruction set

-4 1 instruction

-Idle and stop commands increase the power-down mode.

52 input/output pins

-input/output: 16 pins

-I/O: 36 pins (shared with LCD signal output * * *)

pause

-4 interrupt sources and 1 vector

-Interrupt phase

8-bit basic timer

-watchdog timer function

-3 kinds of clock sources

Two 8-bit timers/counters

-Programmable 8-bit timer/counter

-External event counter function

-It can be configured as 16-bit timer/counter.

Watch timer

-interval: 3.9 1 millisecond, 0.25 second, 0.5 second, at 25- 1 32.768 khz.

-0.5/ 1/2/4 kHz optional buzzer output.

LCD controller/driver

-32 segments and 4 male * * * terminals

-Static, 1/2 tax, 1/3 responsibility and 1/4 duty cycle selection.

Internal circuit of LCD bias resistor

8-bit serial I/O interface

-8-bit transmit/receive mode

-8-bit reception mode

-LSB first or MSB first transmission is optional.

-Internal or external clock source

Two power saving modes

-idle mode: only the CPU clock stops.

-stop mode: the system clock and CPU clock stop.

Vibration source

-Crystal, ceramic, master clock or RC

-master clock frequency: 0.4 MHz-8MHz

Clock oscillation circuit of -32.768 kHz crystal oscillator

Instruction execution time

The foreign exchange at 8MHz (minimum) is 500ns.

Operating voltage range

0.4-4.2 MHz from -2.0 volts to 5.5 volts.

0.4-8.0 MHz from -2.7 volts to 5.5 volts.

operating temperature range

-25 to 85℃

Packaging type

-64 leading QFP