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AT90S4434

Availability: Obsolete

Deviceimage

Summary

This device was obsoleted in year 2000! AT90S4434 is easily replaced by the AT90S8535. It's practically the same device, just twice the memories. The people we spoke to reported the transition to be mostly painless. The device was also available in a 3V version, AT90LS4434.

Crossrelation

  • pin and feature compatible with 8535, less memory.
  • pin compatible with mega16, less features.
  • pin compatible with mega163, less features.
  • pin compatible with mega32, less features.
  • pin compatible with mega323, less features.
  • pin compatible with mega8535, less features.

Overview features

Flash EEPROM SRAM Speed Volts
4kB 256B 256B 0 - 8MHz 4 - 6V

Files

Packages

General package info

  44-pin TQFP 44-pin PLCC 40-pin PDIP
Package Lead Code 44 44 40
Carrier Type TRAY TUBE TUBE
Max Package Height 1.2 4.57  
Body Thickness 1.00 3.81 3.81
Body Width 10.00 16.56 15.24
Body Length 10.00 16.56 52.32
JEDEC MSL 3 2  
Units per Carrier 160 27 10
Carriers per Bag 10 40 20
Units per Bag 1600 1080 200
Quantity per Reel 2000 500 0
Tape Pitch 16 24  
Tape Width 24 32  
Downloadable Files pdf Package Drawing
pdf Tube Tray Drawing
pdf Carrier Tape Drawing
pdf Reel Drawing
pdf Package Drawing
pdf Tube Tray Drawing
pdf Carrier Tape Drawing
pdf Reel Drawing
pdf Package Drawing
pdf Tube Tray Drawing
Other features Tools
Memory
Flash Memory 4 kB
EEPROM Data Memory 256 B
SRAM Data Memory 256 B
General Purpose Registers (Accumulators) 32
MCU Specific
Clock Frequency 0 - 8 MHz
Supply Voltage 4 - 6 V
Sleep Modes 3
I/O Pins 32
Power-on Reset Yes
Timers / Counters
Timer/Counters (8-bit) 2
Watchdog Timer with On-chip Oscillator Yes
Real Time Counter Yes
Timer/Counters (16-bit) 1
Pulse Width Modulator 2 ch
Analog I/O
Analog Comparator Yes
Analog-to-Digital Converter (10-bit) 8 ch
Programming Modes
In-System Programming via SPI Port Yes
High Voltage Parallel Programming (12V) Yes
Serial I/O
Full Duplex Serial Peripheral Interface (SPI) Yes
Full Duplex UART 1