A simple A to D converter
National Semiconductor ADC0831 8 bit A/D converter.  This is the unit featured in the Parallax Stamp and PIC Applications. There are a lot of code examples around for this one.

Brownout Reset I.C. for Micros.
1 by Motorola MC34064P-5  Voltage Detector I.C. Open Collector Output.
 Power on Reset for your Micro. This is in a 3 wire TO-92 type
 Case. 4.2V to 4.5V typical detect voltage. Output low reset.
           ___
        /   \  Top View: 1 Reset.     (Pins facing away)
       |_____|           2 VDD
        1 2 3            3 Gnd.
The specs can be found at:
http://www.onsemi.com/pub/Collateral/mc34064rev2f.pdf

You can use the following I.C.'s: (Open collector type will need a pullup resistor, 10K should do)
Panasonic MN13811-S (Open Collector)
Panasonic MN1381-S (CMOS)
Zetek ZM33064
Motorola MC33064P (Open Collector)

ULN-2803A
These 8 bit devices can be very hard to get. Drives LEDs and Relays. See DT203 and DT205.
Pinouts and specs.

LCD 2 line by 16 Character.
HD44780-based 2 line by 16 Character LCD display. These Truly LCD displays have an additional two pins, pins 15 and 16.
Simply ignore the extra two pins, these are standard artwork for back lite versions.
Truly Brand No-Backlite  ($20AUD)

Order Now

Catalog

More LCD information  A Serial Line Interface. Hook it up to your Serial port direct.

Real Time Clock for your Micro Project:
DS1302 in 8 pin DIP. Dallas-Semi Timekeeper Chip.
These devices are Serial Interfaced Real Time Clock chips.
The DS-1302 has 31 bytes of Ram and trickle charge capability.
Back-up battery or Super Cap easily fitted to pin 1.
Pin compatible with 1202 but has many added features.
Code is available for Basic Stamp 2 and FED Basic.
Micromint's PicStic Circuits, Overlays, Code, Data Sheets.
for the 1, 2, and 3 PicStic. Covers the NJU6355 and has code examples.
Beware *** Micromint keep changing this link.
Requires 32.768KHz Crystal with 6pf load capacitance.
Get your own PDF Data from http://www.maxim-ic.com/products.cfm

DS1307 in 8 pin DIP. Dallas-Semi Timekeeper Chip.
This has the advantage of having 56 bytes of Ram and a square
wave output on 1 pin that is programmed to 1 of 4 settings:
1KHz, 4Khz, 8KHz, and 32Khz.
Requires 32.768KHz Crystal with 12pf load capacitance.
Get your own PDF Data from http://www.maxim-ic.com/products.cfm

DS18S20 in a TO-92 3 pin Package.
Dallas-Semi High Precision 1 Wire Digital Thermometer.
Get your own PDF Data from http://www.maxim-ic.com/products.cfm
The package will be marked DS1820 and will have no "S" in it, however after chasing this up with Dallas, Tech Support tells me that in Jan-2000 and onwards, they only manufactured the "S" version, but it still retains the DS1820 marking on the device. I think it would have been a lot easier for us to explain to our customers, if they simply put the "S" there. The date can be found in the document: 40-18s20-000.pdf This explains that the 'YY' and "WW" (year and week of manufacture) are found directly under the "DS1820" marking. The last two digits in that group are the lot code.
FEATURES

Unique 1–Wire TM interface requires only one port pin for communication

Multidrop capability simplifies distributed temperature sensing applications

Requires no external components

Can be powered from data line. Power supply range is 3.0V to 5.5V

Zero standby power required

Measures temperatures from –55°C to +125°C. Fahrenheit equivalent is –67°F to +257°F

±0.5..C accuracy from –10°C to +85°C

Temperature is read as a 9–bit digital value

Converts temperature to digital word in 750 ms (max.)

User–definable, nonvolatile temperature alarm settings

Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)

Software compatible with DS1820 1-wire digital thermometer

Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive
system.

The DS18S20 Digital Thermometer provides 9–bit temperature readings which indicate the temperature of the device.
Information is sent to/from the DS18S20 over a 1–Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor to a DS18S20. Power for reading, writing, and performing temperature conversions can be derived from the data line itself with no need for an external power source. Because each DS18S20 contains a unique silicon serial number, multiple DS18S20s can exist on the same 1–Wire bus. This allows for placing temperature sensors in many different places.

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