AT90S4434-8AC

AT90S4434-8AC Datasheet

• Operating Voltages VCC - 6.0V AT90S4434/AT90S8535 VCC - 6.0V AT90LS4434/AT90LS8535

Part	Datasheet
AT90S4434-8AC	AT90S4434-8AC (pdf)

Related Parts	Information
AT90S4434-8JC	AT90S4434-8JC
AT90S4434-8PC	AT90S4434-8PC
AT90S4434-8JI	AT90S4434-8JI
AT90S4434-8AI	AT90S4434-8AI
AT90S4434-8PI	AT90S4434-8PI

PDF Datasheet Preview
• High-performance and Low-power RISC Architecture 118 Powerful Instructions Most Single Clock Cycle Execution 32 x 8 General-purpose Working Registers Up to 8 MIPS Throughput at 8 MHz • Data and Nonvolatile Program Memories 4K/8K Bytes of In-System Programmable Flash SPI Serial Interface for In-System Programming Endurance 1,000 Write/Erase Cycles 256/512 Bytes EEPROM Endurance 100,000 Write/Erase Cycles 256/512 Bytes Internal SRAM Programming Lock for Software Security • Peripheral Features 8-channel, 10-bit ADC Programmable UART Master/Slave SPI Serial Interface Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Modes and Dual 8-, 9-, or 10-bit PWM Programmable Watchdog Timer with On-chip Oscillator On-chip Analog Comparator • Special Microcontroller Features Power-on Reset Circuit Real-time Clock RTC with Separate Oscillator and Counter Mode External and Internal Interrupt Sources Three Sleep Modes Idle, Power Save and Power-down • Power Consumption at 4 MHz, 3V, 20°C Active mA Idle Mode mA Power-down Mode <1 µA • I/O and Packages 32 Programmable I/O Lines 40-pin PDIP, 44-pin PLCC and 44-pin TQFP • Operating Voltages VCC - 6.0V AT90S4434/AT90S8535 VCC - 6.0V AT90LS4434/AT90LS8535 • Speed Grades 0 - 8 MHz AT90S4434/AT90S8535 0 - 4 MHz AT90LS4434/AT90LS8535 Pin Configurations 8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash AT90S4434 AT90LS4434 AT90S8535 AT90LS8535 Note This is a summary document. A complete document is 1 available on our web site at The AT90S4434/8535 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S4434/8535 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. Block Diagram Figure The AT90S4434/8535 Block Diagram PA0 - PA7 PC0 - PC7 AVCC AGND AREF PORTA DRIVERS PORTC DRIVERS DATA REGISTER PORTA DATA DIR. REG. PORTA DATA REGISTER PORTC 8-BIT DATA BUS DATA DIR. REG. PORTC ANALOG MUX PROGRAM COUNTER STACK POINTER INTERNAL OSCILLATOR WATCHDOG TIMER OSCILLATOR OSCILLATOR TIMING AND CONTROL XTAL1 XTAL2 RESET PROGRAM FLASH SRAM MCU CONTROL REGISTER INSTRUCTION REGISTER INSTRUCTION DECODER Ordering Information Power Supply - 6.0V Speed MHz 4 - 6.0V - 6.0V - 6.0V Ordering Code AT90LS4434-4AC AT90LS4434-4JC AT90LS4434-4PC AT90LS4434-4AI AT90LS4434-4JI AT90LS4434-4PI AT90S4434-8AC AT90S4434-8JC AT90S4434-8PC AT90S4434-8AI AT90S4434-8JI AT90S4434-8PI AT90LS8535-4AC AT90LS8535-4JC AT90LS8535-4PC AT90LS8535-4AI AT90LS8535-4JI AT90LS8535-4PI AT90S8535-8AC AT90S8535-8JC AT90S8535-8PC AT90S8535-8AI AT90S8535-8JI AT90S8535-8PI Package 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 Operation Range Commercial 0°C to 70°C Industrial -40°C to 85°C Commercial 0°C to 70°C Industrial -40°C to 85°C Commercial 0°C to 70°C Industrial -40°C to 85°C Commercial 0°C to 70°C Industrial -40°C to 85°C 44A 44J 40P6 Package Type 44-lead, Thin mm Plastic Gull Wing Quad Flat Package TQFP 44-lead, Plastic J-leaded Chip Carrier PLCC 40-lead, Wide, Plastic Dual Inline Package PDIP 10 AT90S/LS4434 and AT90S/LS8535 AT90S/LS4434 Packaging Information 44A, 44-lead, Thin mm Plastic Gull Wing Quad Flat Package TQFP Dimensions in Millimeters and Inches 44J, 44-lead, Plastic J-leaded Chip Carrier PLCC Dimensions in Inches and Millimeters PIN 1 ID BSC X 45° PIN NO. 1 IDENTIFY X 30° - 45° .650 16.5 SQ .685 17.4 SQ REF SQ X 45° MAX 3X

PDF Datasheet Preview

• High-performance and Low-power RISC Architecture 118 Powerful Instructions Most Single Clock Cycle Execution 32 x 8 General-purpose Working Registers Up to 8 MIPS Throughput at 8 MHz
• Data and Nonvolatile Program Memories 4K/8K Bytes of In-System Programmable Flash SPI Serial Interface for In-System Programming Endurance 1,000 Write/Erase Cycles 256/512 Bytes EEPROM Endurance 100,000 Write/Erase Cycles 256/512 Bytes Internal SRAM Programming Lock for Software Security
• Peripheral Features 8-channel, 10-bit ADC Programmable UART Master/Slave SPI Serial Interface Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Modes and Dual 8-, 9-, or 10-bit PWM Programmable Watchdog Timer with On-chip Oscillator On-chip Analog Comparator
• Special Microcontroller Features Power-on Reset Circuit Real-time Clock RTC with Separate Oscillator and Counter Mode External and Internal Interrupt Sources Three Sleep Modes Idle, Power Save and Power-down
• Power Consumption at 4 MHz, 3V, 20°C Active mA Idle Mode mA Power-down Mode <1 µA
• I/O and Packages 32 Programmable I/O Lines 40-pin PDIP, 44-pin PLCC and 44-pin TQFP
• Operating Voltages VCC - 6.0V AT90S4434/AT90S8535 VCC - 6.0V AT90LS4434/AT90LS8535
• Speed Grades 0 - 8 MHz AT90S4434/AT90S8535 0 - 4 MHz AT90LS4434/AT90LS8535

Pin Configurations
8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash

AT90S4434 AT90LS4434 AT90S8535 AT90LS8535

Note This is a summary document. A complete document is 1
available on our web site at

The AT90S4434/8535 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S4434/8535 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Block Diagram

Figure The AT90S4434/8535 Block Diagram

PA0 - PA7

PC0 - PC7

AVCC AGND AREF

PORTA DRIVERS

PORTC DRIVERS

DATA REGISTER PORTA

DATA DIR. REG. PORTA

DATA REGISTER PORTC
8-BIT DATA BUS

DATA DIR. REG. PORTC

ANALOG MUX

PROGRAM COUNTER

STACK POINTER

INTERNAL OSCILLATOR

WATCHDOG TIMER

OSCILLATOR

OSCILLATOR

TIMING AND CONTROL

XTAL1

XTAL2 RESET

PROGRAM FLASH

SRAM

MCU CONTROL REGISTER

INSTRUCTION REGISTER

INSTRUCTION DECODER
Ordering Information

Power Supply - 6.0V

Speed MHz 4
- 6.0V
- 6.0V
- 6.0V
Ordering Code

AT90LS4434-4AC AT90LS4434-4JC AT90LS4434-4PC

AT90LS4434-4AI AT90LS4434-4JI AT90LS4434-4PI

AT90S4434-8AC AT90S4434-8JC AT90S4434-8PC

AT90S4434-8AI AT90S4434-8JI AT90S4434-8PI

AT90LS8535-4AC AT90LS8535-4JC AT90LS8535-4PC

AT90LS8535-4AI AT90LS8535-4JI AT90LS8535-4PI

AT90S8535-8AC AT90S8535-8JC AT90S8535-8PC

AT90S8535-8AI AT90S8535-8JI AT90S8535-8PI

Package
44A 44J 40P6
44A 44J 40P6
44A 44J 40P6
44A 44J 40P6
44A 44J 40P6
44A 44J 40P6
44A 44J 40P6
44A 44J 40P6

Operation Range Commercial 0°C to 70°C

Industrial -40°C to 85°C

Commercial 0°C to 70°C

Industrial -40°C to 85°C

Commercial 0°C to 70°C

Industrial -40°C to 85°C

Commercial 0°C to 70°C

Industrial -40°C to 85°C
44A 44J 40P6

Package Type
44-lead, Thin mm Plastic Gull Wing Quad Flat Package TQFP 44-lead, Plastic J-leaded Chip Carrier PLCC 40-lead, Wide, Plastic Dual Inline Package PDIP
10 AT90S/LS4434 and AT90S/LS8535

AT90S/LS4434

Packaging Information
44A, 44-lead, Thin mm Plastic Gull Wing Quad Flat Package TQFP Dimensions in Millimeters and Inches
44J, 44-lead, Plastic J-leaded Chip Carrier PLCC Dimensions in Inches and Millimeters

PIN 1 ID BSC

X 45° PIN NO. 1 IDENTIFY

X 30° - 45°
.650 16.5 SQ
.685 17.4 SQ

REF SQ

X 45° MAX 3X

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AT90S4434-8AC Datasheet file may be downloaded here without warranties.

Datasheet ID: AT90S4434-8AC 519103