HSMC H66T68, H66T32, H66T19 Datasheet

HI-SINCERITY

MICROELECTRONICS CORP.

H66T19/32/68 Series

Description

The H66T19/32/68 series is a CMOS LSI designed for use in door bell,
telephone and toy applications. It is an on-chip ROM program-med for
music performance. Produced by COMS technology, the device results in
very low power consumption. Since the H66T19/32-/68 series includes
oscillation circuits, a compact melody module can be constructed with only
a few additional components.

Feature

• 64-Note ROM memory

• 1.5V to 3V power supply and low power consumption

• Dynamic speaker can be driven with external NPN transistor

• OSC resistor is built-in

• Built-in level hold mode

• Power on reset: melody begins from the first note

Spec. No. : HA200220
Issued Date : 1998.04.08
Revised Date : 2002.12.20
Page No. : 1/4

TO-92

Absolute Maximum Ratings

• DC Supply Voltage............................................................................................................ 1.5 V to +3 V

• Operating Ambient Temperature..................................................................................... -10 °C to 60 °C

• Storage Temperature.................................................................................................... -55 °C to 125 °C

Pin Configuration

Pin No. Symbol Description

1 Ground Negative Power Supply
2 Vin Positive Power Supply
3 Vout Melody Output

Song Titles

Part No. Title

H66T19AA For Alice (Play time between 21s to 26s at Vcc=1.5V)
H66T19BA For Alice (Play time between 18.5s to 22.5s at Vcc=1.5V)
H66T32AA Coo Coo Waltz (Play time between 16.5s to 20s at Vcc=1.5V)
H66T32BA Coo Coo Waltz (Play time between 15s to 18.5s at Vcc=1.5V)
H66T68AA It's A Small World (Play time between 30s to 36s at Vcc=1.5V)
H66T68BA It's A Small World (Play time between 28s to 34s at Vcc=1.5V)

Note: During time bases on circuit in fig-2 in page 3.

H66T19XA, H66T32XA, H66T68XA HSMC Product Specification

HI-SINCERITY

MICROELECTRONICS CORP.

Spec. No. : HA200220
Issued Date : 1998.04.08
Revised Date : 2002.12.20
Page No. : 2/4

Comment

Stress above those listed as "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only. Functions of this device at these or any other conditions above those
indicated in the operational sections of this specification is not implied. Any expos-ure to absolute
maximum rating conditions for extended periods may affect device reliability.

Electrical Characteristics

(VSS=0V, Ta=25°C, FOSC=65536Hz, unless otherwise specified)

Paramater Symbol Min Typ Max Conditions

Operating Voltage V
Operating Current I
Drive Current I
O/P Sink Current I
Frequency Deviation Per Lot
Frequency Stability

∆F/F
∆F/F

DD
D

Drive

Sink

1.5V - 3V

- - 20uA VDD=1.5V, O/P Open

- - 200uA VDD=1.3V, O/P=0.8V

- - 5uA VDD=1.3V, O/P=0.5V Open

-12% - +33% VDD=1.5V
10% - - (F

OSC(1.6V)-FOSC (1.3V)

)/F

OSC(1.3V)

Functional Description

• Oscillator Circuit
The oscillation frequency is used for tone and beat generators. Its accuracy affects the quality of the
music.

• Tone Generator
Tone frequencies are oscillator frequencies-M, where M is any even number from 64 to 256. Within a
melody 14 scales can be selected including PAUSE code and END code. The tone generator is a
programmed divider. The range of scales is from "C4" to "C6" and that for freq-uency varies from
258Hz to 23768Hz.

• Rhythm Generator
The rhythm generator is also a programmed divider. It contains 15 available rhythms as follows:

1/4 1/2 3/4 1
1-1/4 1-1/2 1-3/4 2
2-1/4 2-1/2 2-3/4 3
3-1/4 3-1/2 3-3/4 J. Four rhythms can be selected from these.

• Melody Rom
The Mask ROM can memorize 64 notes with 6 bits. 4 bits are used for controlling the scale co-de and
2 bits are used for controlling the rhythm code.

• Tempo Generator
There are 15 available tempos in the H66T19/32/68 Series. The 15 tempos are: 128, 137, 148, 160,
175, 192, 213, 240, 274, 320, 480, 640, 960, 1920 J / minute.

H66T19XA, H66T32XA, H66T68XA HSMC Product Specification