S3C80B5 datasheet(2/16 Pages) SAMSUNG

Part #	S3C80B5

Description	S3C8-series of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU

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Manufacturer	SAMSUNG [Samsung semiconductor]

Direct Link	http://www.samsung.com/Products/Semiconductor

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2 / 16 page

PRODUCT OVERVIEW

S3C80A4/C80A8/C80A5/C80B4/C80B8/C80B5

1-2

FEATURES

CPU

•

SAM87RC CPU core

Memory

•

Program memory (ROM)

– S3C80A4/C80B4: 4-Kbyte

(0000H–0FFFH)

– S3C80A8/C80B8: 8-Kbyte

(0000H–1FFFH)

– S3C80A5/C80B5: 15,872 byte

(0000H–3E00H)

•

Data memory: 256-byte RAM

Instruction Set

•

78 instructions

•

IDLE and STOP instructions added for power-

down modes

Instruction Execution Time

•

500 ns at 8-MHz f

OSC (minimum)

Interrupts

•

13 interrupt sources with 10 vector.

•

5 level, 10 vector interrupt structure

I/O Ports

•

Two 8-bit I/O ports (P0-P1) and one 3-bit port

(P2) for a total of 19 bit-programmable pins

•

Eight input pins for external interrupts

Carrier Frequency Generator

•

One 8-bit counter with auto-reload function and

one-shot or repeat control (Counter A)

Back-up mode

•

When V

DD is lower than VLVD, the chip enters

Back-up mode to block oscillation and reduce the

current consumption.

Timers and Timer/Counters

•

One programmable 8-bit basic timer (BT) for

oscillation stabilization control or watchdog timer

function

•

One 8-bit timer/counter (Timer 0) with two

operating modes; Interval mode and PWM mode.

•

One 16-bit timer/counter with one operating

modes; Interval mode

Low Voltage Detect Circuit

•

Low voltage detect for reset or Back-up mode.

•

Low level detect voltage

– S3C80A4/C80A8/C80A5:

2.20 V (Typ)

± 200 mV

– S3C80B4/C80B8/C80B5:

1.90 V (Typ)

± 200 mV

Auto Reset Function

•

Reset occurs when stop mode is released by P0.

•

When a falling edge is detected at Port 0 during

Stop mode, system reset occurs.

Operating Temperature Range

•

–40°C to + 85°C

Operating Voltage Range

•

1.7 V to 3.6 V at 4 MHz f

OSC

•

2.0 V to 3.6 V at 8 MHz f

OSC

Package Type

•

24-pin SOP/SDIP

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