CEC 1813

Cross Number:

Item Description: LAMP T3-1/4 MINI BAYONET BASE

Qty Price
1 - 34 $1.47563
35 - 67 $1.15144
68 - 100 $1.00611
101 - 130 $0.93904
131 + $0.87196



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CEC
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

UNISONIC TECHNOLOGIES CO., LTD
1812A/1812B/1813
CMOS IC
www.unisonic.com.tw 1 of 8
Copyright © 2005 Unisonic Technologies Co., Ltd QW-R502-006,E
SINGLE SOUND GENERATOR
DESCRIPTION
The UTC 1812A/1812B/1813 is a CMOS LSI chip designed for
use in sound effect products .It is equipped with tone circuit, noise
circuit and other control logic to generate different sounds
including rifle gun, machine gun, booming sound, door bell, alarm
etc. The customer supplied sound source can be analyzed and
programmed into an internal ROM by changing a mask layer
during device fabrication. The UTC 1812A/1812B/1813 is suitable
for various toy applications.
FEATURES
*Single power supply: 2.4~3.3V
*Low standby current at 3V, 1µA typ
*Auto power-off function
*Speaker or direct piezo. application
*Built-in envelope control circuit
*1Hz-8Hz programmable LED flash output
*Minimum external components
*Low operating current
*Strong driving capability
DIP-8
SOP-8
DIP-14
*Pb-free plating product number:
1812A/1812B/1813L
ORDERING INFORMATION
Order Number
Normal Lead Free Plating
Package Packing
1812A-D8-R 1812AL-D8-R DIP-8 Tape Reel
1812A-D8-T 1812AL-D8-T DIP-8 Tube
1812A-S8-R 1812AL-S8-R SOP-8 Tape Reel
1812A-S8-T 1812AL-S8-T SOP-8 Tube
1812B-D8-R 1812BL-D8-R DIP-8 Tape Reel
1812B-D8-T 1812BL-D8-T DIP-8 Tube
1812B-S8-R 1812BL-S8-R SOP-8 Tape Reel
1812B-S8-T 1812BL-S8-T SOP-8 Tube
1813-D14-T 1813L-D14-T DIP-14 Tube
1812A/1812B/1813 CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 2 of 8
www.unisonic.com.tw QW-R502-006,E
PIN CONFIGURATIONS
DIP-8/SOP-8 DIP-8/SOP-8 DIP-14
OSC1
1
2
3
4
7
6
5
KEYOUT
V
SS
V
DD
8
OUT
LED
OSC2
UTC
1812A
OSC1
1
2
3
4
7
6
5
KEYOUT
V
SS
V
DD
8
OUT
ENV
OSC2
UTC
1812B
1
2
3
4
7
6
5
TEST1
OSC1
V
DD
KEY
NC
TEST3
LED
OSC2
ENV
OUT
OUT
NC
V
SS
TEST2
8
9
10
11
12
13
14
UTC
1813
PIN CONFIGURATIONS
PIN NO.
1812A 1812B 1813
SYMBOL DESCRIPTION
1 1 9 V
SS
Negative power supply, GND
2 2 12
OUT
Sound output pad, out of phase to pad 3
3 3 13 OUT Sound output pad
4 - 2 LED LED flash output pad
- 4 14 ENV Sound envelope control pad
5 5 3 V
DD
Positive power supply
6 6 4 KEY Key input pad, low active
7 7 5 OSC2 Oscillator output pad
8 8 6 OSC1 Oscillator input pad
- - 7 TEST1 For IC test only
- - 8 TEST2 For IC test only
- - 1 TEST3 For IC test only
- - 10,11 NC No connection
1812A/1812B/1813 CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 3 of 8
www.unisonic.com.tw QW-R502-006,E
BLOCK DIAGRAM
Oscillator
Divider
Speed
Generator
LED
Divider
Key
Input
Logic
Tone
Generator
Noise
Generator
Selector
&
Envelope
Circuit
Output
Divider
OSC 1
OSC 2
KEY
TEST1 TEST2 TEST3 ENV V
DD
V
SS
OUT
OUT
LED
12NEXT

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