Samsung S3F80JB manual Features, Cpu

PRODUCT OVERVIEW S3F80JB

FEATURES

CPU

•SAM8 RC CPU core

Memory

•Program memory:

-64-Kbyte Internal Flash Memory

-Sector size: 128Bytes

-10years data retention

-Fast Programming Time: Sector Erase: 10ms Byte Program: 32us

-Byte Programmable

-User programmable by ‘LDC’ instruction

-Sector (128-bytes) Erase available

-External serial programming support

-Endurance: 10,000 Erase/Program cycles

-Expandable OBPTM (On Board Program)

•Data memory: 272-byte general purpose RAM

Instruction Set

•78 instructions

•IDLE and STOP instructions added for power- down modes

Instruction Execution Time

•500 ns at 8-MHz fOSC (minimum)

Interrupts

•24 interrupt sources with 18 vectors and 8 levels.

I/O Ports

•Four 8-bit I/O ports (P0–P2 , P4) and 6-bit port (P3) for a total of 38 bit-programmable pins.

(44-QFP)

•Four 8-bit I/O ports (P0–P2 , P4) and 4-bit port (P3) for a total of 36 bit-programmable pins.

(42-SDIP)

•Three 8-bit I/O ports (P0–P2) and one 2-bit I/O port (P3) for a total of 26-bit programmable pins. (32-SOP)

Carrier Frequency Generator

•One 8-bit counter with auto-reload function and one-shot or repeat control (Counter A)

Basic Timer and Timer/Counters

•One programmable 8-bit basic timer (BT) for oscillation stabilization control or watchdog timer (software reset) function

•One 8-bit timer/counter (Timer 0) with three operating modes: Interval mode, Capture and PWM mode.

•One 16-bit timer/counter (Timer1) with two operating modes: Interval and Capture mode.

•One 16-bit timer/counter (Timer2) with two operating modes: Interval and Capture mode.

Back-up Mode

•When VDD is lower than VLVD, the chip enters Back-up mode to block oscillation and reduce the current consumption.

In S3F80JB, this function is disabled when operating state is “STOP mode”.

•When reset pin is lower than Input Low Voltage (VIL), the chip enters Back-up mode to block oscillation and reduce the current consumption.

Analog Voltage Comparator

•4-bit resolution: 16-step variable reference voltage, 150mV Input Voltage Accuracy (worst case)

•4-channel mode: CIN0-3, Internal reference voltage generator

•3-channel mode: CIN0-2, External reference voltage source (CIN3) supply

Low Voltage Detect Circuit

•Low voltage detect to get into Back-up mode and Reset

2.15V (Typ) ± 200mV at 8MHz

1.90V (Typ) ± 200mV at 4MHz

•Low voltage detect to control LVD_Flag bit 2.30V (Typ) ± 200mV at 8MHz

2.15V (Typ) ± 200mV at 4MHz

Operating Temperature Range

•–25°C to + 85 °C

Operating Voltage Range

•1.95V to 3.6V at 8MHz

Package Types

•32-pin SOP

•44-pin QFP

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