LSI

LS3262

4 Digit Alarm Clock With Calendar

format) to “11: A”(12 hour format), “12: P”(12 hour format) to

“11: P”(12 hour format) by pressing “M” key. Hold (2 sec) the

“M” key will have auto advance. Press “S” key to minute setting,

it can be set from “:00” to “:59” by pressing “M” key. Hold (2

sec) the “M” key will have auto advance. Press “S” key to return

normal mode (without minute setting) or hold mode(with minute

setting). In the hold mode, press “M” key only to return normal

mode.

Pin Assignment

DESIGNATION

TYPE

DESCRIPTION

B [0:1]

OUTPUT

Buzzer output

V1, V2

OUTPUT

Doubler output

VEE

OUTPUT

-1.5V

T2, T1

INPUT (PL)

TEST pin

OO

OUTPUT

32KHz oscillator output

OI

INPUT

32KHz oscillator input

VDD

POWER

+1.5V power supply

GND

POWER

Ground

I[0:5]

INPUT(PH)

Input key/option

O[0:3]

OUTPUT

Trigger output (O[0:2])

C[1:2]

OUTPUT

LCD Common output

S[1:14]

OUTPUT

LCD Segment output

Note: (PL) – pull low

(PH) - pull high

Absolute Maximum Ratings

Supply voltage Vdd - Vss..........................0 to 5V

Input voltage Vin.................................Vss to Vdd

Operating temperature Top .............-10°C to 60°C

Storing temperature Tst ...................-40°C to 70°C

*Comments

Stress above those listed under Absolute Maximum Ratings” may cause permanent damage to the

device.

These are stress rating only.

Functional operation of this device at these or any other conditions

above those indicated in the operational sections of this specification is not implied and exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

D.C. Electrical Characteristics