Features: LOWCOST
POWERFUL INSTRUCTION SET
2k x 8 ROM, 128 x 4 RAM
23 I/O LINES (ETL9444) TRUE VECTORED INTERRUPT, PLUS RES.TART
THREE-LEVEL SUBROUTINE STACK
16ms INSTRUCTION TIME
SINGLESUPPLYOPERATION (4.5-6.3V)
LOWCURRENT DRAIN (13mA max.)
INTERNALTIME-BASE COUNTER FORREAL.TIME PROCESSING
INTERNAL BINARY COUNTER REGISTER
WITHMICROWIRE) SERIAL I/O CAPABILITY GENERAL PURPOSE AND TRI-STATE) OUT. PUTS
LSTTL/CMOS COMPATIBLE IN AND OUT DIRECTDRIVEOF LEDDIGIT AND SEGMENT
LINES SOFTWARE/HARDWARE COMPATIBLE
WITHOTHER MEMBERSOF ET9400 FAMILY EXTENDED TEMPERATURE RANGE DEVICES
ETL9344/L9345 ( 40°C to + 85°C) WIDERSUPPLY RANGE (4.5 9.5V)
OPTIONALLY AVAILABLE SOIC 24/28 AND PLCC 28 PACKAGES AVAILABLE
Pinout
Specifications
| Symbol |
Parameter |
Value |
Unit |
| |
Voltage at any Pin Relative to GND |
0.5 to + 10 |
V |
| |
Ambient Operating Temperature |
0 to + 70 |
°C |
| |
Ambient Storage Temperature |
65 to + 150 |
°C |
| |
Lead Temperature (soldering, 10 seconds) |
300 |
°C |
| |
Power Dissipation |
0.75W at 25°C
0.4W at 70°C |
|
| |
Total Source Current |
120 |
mA |
| |
Total Sink Current |
120 |
mA |
DescriptionThe ETL9444/L9445 and ETL9344/L9345 Single- Chip N-Channel Microcontrollers are fully compatible with the COPS) family, fabricated using N-channel, silicon gate XMOStechnology. They are complete microcomputers containing all system timing, internal logic, ROM, RAM and I/O necessary to implement dedicated control functions in a variety of applications. Features include single supply operation, a variety of output configuration options, with an instruction set, internal architecture and I/O scheme designed to facilitate keyboard input, display output and BCD data manipulation. The ETL9445 is identical to the ETL9444, except with 19 I/O lines instead of 23 : They are an appropriate choice for use in numerous human interface control environments. Standard test procedures and reliable high-density fabrication techniques provide the medium to large volume customers with a customi-zed controller oriented processor at a low end-product cost
The ETL9344/L9345 are exact functional equivalents, but extended temperature range versions of the ETL9444/L9445 respectively.
ETL9444 Data Sheet
