Melody Generator. UM66T19L Datasheet

UM66T19L Generator. Datasheet pdf. Equivalent


Part UM66T19L
Description Simple Melody Generator
Feature ; =_=_amcm___----‘_= F z-d @. UM66T Series Simple Melody Generator Features n 62-note ROM memory n.
Manufacture UMC
Datasheet
Download UM66T19L Datasheet


UTC UM66TXXL MELODY INTEGRATED CIRCUIT DESCRIPTION The UTC U UM66T19L Datasheet
; =_=_amcm___----‘_= F z-d @. UM66T Series Simple Melody Ge UM66T19L Datasheet
Recommendation Recommendation Datasheet UM66T19L Datasheet




UM66T19L
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___---
--‘_= F z-d
@.
UM66T Series
Simple Melody Generator
Features
n 62-note ROM memory
n 1.3V to 3.3V operating voltage and low power con-
sumption
n Dynamic speaker can be driven with an external NPN
transistor.
n OSC. resistor is built- in
n One-shot mode or level-hold mode can be selected
n Power on reset; melody begins from the first note
n Direct piezo drive.
General Description
The UM66T series is a CMOS LSI designed for use in
door bells, telephones and toy applications. It is an on-chip
ROM programmed for musical performance. Produced
by CMOS technology, the device results in very low
power consumption. Since the UM66T series includes
oscillator and mode selector circuits, a compact melody
module can be constructed with only a few additional
components.
Pin Configuration
Block Diagram
o/p
VDD
vss
Pin Description
Pin No. Designation
1 O/P
2 vDD
3 Vss
Description
Melody output
Positive power supply
Negative power supply
Fl ;
STACCATO_
II
MELODY ROM
a5a4a3”2ald0
7 PROGRAM
COUNTER
I
4



UM66T19L
UMC
Absolute Maximum Ratings*
DC Supply Voltage . . . -0.3V to +5.OV
O p e r a t i n g A m b i e n t T e m p e r a t u r e . . -1O’C to 60°C
Storage
Temperature
-55’C to 125’C
UM66 T Series
*Comments
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
These are stress ratings 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.
DC Electrical Characteristics
(Vss = OV. T, = 25’C, F 0s~ = 65536 Hz, unless otherwise specified.)
Parameter
Operating Voltage
Supply
Current
O/p Drive Current
O/p Sink Current
Frequency Deviation Per Loi
AFIF
Frequency Stability
AFIF
-12%
-
T Y P. I Max.
- 1 3.3v /
Conditions
- 1 1 PA 1 vDD=1.5v o/P open
- 1 6OpA 1 VDD = 1.5v O/p open
1.5 mA 1 - 1 VDD =I.% Vo,,=O.SV
1.5mA
I
-
- 1 33%
VDD = 1.3V VO/,, = O.5V
I
1 vDD=1.5v
F,,, (1.6V) - Fosc (1.3V)
- 12%
Fosc (1.3V)
Functional Description
Oscillator Circuit
The oscillator frequency is used as a time base 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 254. 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 range of
frequency varies from 258 Hz to 32768 Hz.
Beat Generator
The beat generator is also a programmed divider. It
contains 1 5 a v a i l a b l e b e a t s a s f o l l o w s : l/4, l/2,
3/4, 1 , l-1/4, l-1/2, l-314, 2 , 2-l/4, 2-l/2, 2-314, 3,
3-l/4, 3-l/2, 3-3/4 J. Four beats 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 code and 2 bits
are used for controlling the rhythm code.
Tempo Generator
There are 15 available tempos in the UM66T. The 15
tempos are: 128, 137, 148, 160, 175, 192, 213,
240, 274, 320, 384, 480, 640, 960, 1920 J/minute.







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