DESCRIPTION

The SM5K3/5K4/5K5 are CMOS 4-bit single-chip

microcomputers incorporating 4-bit parallel pro-

cessing function, ROM, RAM, 10-bit A/D converter

and timer/counters.

It provides three kinds of interrupts and 4 levels

subroutine stack. Being fabricated through CMOS

process, the chip requires less power and available

in a small package : best suitable for Low power

controlling, compact equipment like a precision

charger.

FEATURES

• ROM capacity : 2 048 x 8 bits

• RAM capacity : 128 x 4 bits

• Instruction sets : 50

• Subroutine nesting : 4 levels

• I/O port :

Input

8

Output

4

Input/output

12 (36QFP/32SOP)

11 (30SDIP)

8 (28SOP)

• Interrupts :

Internal interrupt

x 1 (timer)

External interrupt

x 2 (2 external interrupt

inputs)

• A/D converter :

Resolution

10 bits

Channels

4

• Timer/counter : 8-bit x 1

• Built-in main clock oscillator for system clock

Ceramic/crystal oscillator (SM5K3/5K5)

CR oscillator (SM5K4)

• Built-in 15 stages divider

• Instruction cycle time :

1 µs (MIN.) (2 MHz, at 5 V ± 10%) (SM5K3/5K5)

2 µs (MIN.) (1 MHz, at 2.2 to 5.5 V) (SM5K3/5K5)

1 µs (MIN.) (1.67 MHz ± 20%, at 5 V ± 10%) (SM5K4)

• Large current output pins (LED direct drive) :

15mA (TYP.) x 4 (sink current)

• Supply voltages :

2.2 to 5.5 V (SM5K3/5K5)

2.7 to 5.5 V (SM5K4)

• Packages :

30-pin SDIP (SDIP030-P-0400)

32-pin SOP (SOP032-P-0525)

36-pin QFP (QFP036-P-1010)

28-pin SOP (SOP028-P-0450) (SM5K3/5K5)

24-pin SSOP (SSOP024-P-0275) (SM5K4)

∗ In case of using crystal oscillator

SM5K3/SM5K4/SM5K5

SM5K3/SM5K4

SM5K5

4-Bit Single-Chip Microcomputers

(Controllers With 10-Bit A/D Converter)

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In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books,

etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.