SM5L1 データシートの表示（PDF） - Sharp Electronics

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SM5L1

4-Bit Single Chip Microcomputers

Sharp Electronics 

Microcomputer Data Sheet

SM5L1/SM5L2/SM5L3

4-Bit Single Chip Microcomputers

FEATURES

• ROM capacity:

– 2,048 × 8-bits (SM5L1)

– 3,072 × 8-bits (SM5L2)

– 4,096 × 8-bits (SM5L3)

• RAM capacity:

– 69 × 4-bits, including 21 × 4-bits display RAM

(SM5L1)

– 130 × 4-bits, including 34 × 4-bits display RAM

(SM5L2)

– 170 × 4-bits, including 42 × 4-bits display RAM

(SM5L3)

• 51 instruction sets

• Four levels of subroutine nesting

• I/O port:

– One input

– Five outputs

– Eight input/outputs

• Interrupts:

– Internal interrupt × 1 (divider overflow)

– External interrupt × 1 (INTA)

• Built-in main clock oscillator for system clock

• Signal generation for real time clock

• Built-in 15 stage divider for real time clock

• Built-in LCD driver:

– 84 segments (SM5L1), 136 segments (SM5L2),

168 segments (SM5L3), 1/2 bias, 1/4 duty cycle

• Built-in melody generator circuit:

– Melody ROM

– 160 steps (SM5L1), 256 steps (SM5L2/3)

– Generating time (at 32.768 kHz)

– 20 sec. (MAX.) (SM5L1)

– 32 sec. (MAX.) (SM5L2/3)

• Instruction cycle time: 61 µs (TYP. at 32.768 kHz)

• Standby function

• Supply voltage: 1.5 V ± 20%

• Packages:

– 60-pin QFP (QFP060-P-1414) (SM5L1)

– 72-pin QFP (QFP072-P1010) (SM5L2)

– 80-pin QFP (QFP080-P-1420) (SM5L2/3)

DESCRIPTION

The SM5L1/L2/L3 (SM5Lx series) are CMOS 4-bit

single chip microcomputers operated on 1.5 V single

power supply. This microcomputer integrates 4-bit par-

allel processing function, ROM, RAM, display RAM,

15-stage divider, two types of interrupt and four levels

of subroutine stack. With a built-in LCD drive circuit for

a maximum of 84/136/168 (SM5L1/L2/L3) elements, in

a two-mode standby function, and a melody generator

circuit in a single chip, the SM5Lx series permits the

design of system configuration with a minimum of

peripheral components. It can be used in a variety of

products from handheld equipment to electrical appli-

ances, such as audio timers, and also achieves lower

power consumption.

Microcomputer Data Sheet

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