sh6620a SinoWealth Micro-Electronics Corp. Ltd, sh6620a Datasheet

sh6620a

Manufacturer Part Number

sh6620a

Description

Mask 4-bit Microcontroller

Manufacturer

SinoWealth Micro-Electronics Corp. Ltd

Datasheet

1.SH6620A.pdf (27 pages)

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Features

General Description

SH6620A is a 4-bit microcontroller. This chip integrates the SH6610C 4-bit CPU core with SRAM, 1K program of ROM, Timer

and I/O Ports.

Pin Configuration

SH6610C-based single-chip 4-bit micro-controller.

ROM: 1K X 16 bits.

RAM: 64 X 4 bits (Data memory).

Operation voltage: 2.2V - 6.0V (Typical 3.0V or 5.0V).

12 CMOS bi-directional I/O pins.

4-level subroutine nesting (including interrupts).

One 8-bit auto re-loadable timer/counter.

Warm-up timer for power-on reset.

Powerful interrupt sources:

- Internal interrupt (Timer0).

- External interrupts: PortB & PortC (Falling edge).

PORTA.2

PORTA.3

PORTB.0

PORTB.1

PORTB.2

PORTB.3

RESET

GND

Oscillator (code option)

Instruction cycle time:

Two low power operation modes: HALT and STOP.

Built-in watchdog timer (code option)

- X`tal oscillator:

- Ceramic resonator:

- RC oscillator :

- External clock:

- 4/32.768KHz ( ≈ 122us) for 32.768KHz OSC clock.

- 4/4MHz ( = 1us) for 4MHz OSC clock.

PORTA.1

PORTA.0

OSCI

OSCO

PORTC.3

PORTC.2

PORTC.1

PORTC.0

Mask 4-bit Microcontroller

400K ~ 4MHz.

32.768KHz ~ 4MHz.

400K ~ 4MHz.

30K ~ 4MHz.

SH6620A

V2.5

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