LM8333FLQ8X/NOPB National Semiconductor, LM8333FLQ8X/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM8333FLQ8X/NOPB
• Description: IC KEYPAD CTLR 32-LLP
• Manufacturer: National Semiconductor

Specifications of LM8333FLQ8X/NOPB

• Controller Type: I/O Controller
• Interface: ACCESS.bus, Microwire/SPI, USART, USB
• Voltage - Supply: 2.25 V ~ 2.9 V
• Current - Supply: 6mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LLP
• For Use With: LM8333EVALKIT - BOARD EVALUATION LM8333
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM8333FLQ8X

1.0 General Description ......................................................................................................................... 1
2.0 Features ........................................................................................................................................ 1
3.0 Applications .................................................................................................................................... 1
4.0 Block Diagram ................................................................................................................................ 1
5.0 Ordering Information ........................................................................................................................ 2
6.0 Pin Assignments ............................................................................................................................. 2
7.0 Signal Descriptions .......................................................................................................................... 4
8.0 Typical Application ........................................................................................................................... 5
9.0 Device Operation ............................................................................................................................ 6
10.0 Interrupts .................................................................................................................................... 12
11.0 Absolute Maximum Ratings ........................................................................................................... 15
12.0 DC Electrical Characteristics ......................................................................................................... 15
13.0 AC Electrical Characteristics ......................................................................................................... 16
14.0 Physical Dimensions .................................................................................................................... 18
8.1 FEATURES ............................................................................................................................. 5
8.2 I/O EXPANSION OPTIONS ....................................................................................................... 5
8.3 WATCHDOG TIMER ................................................................................................................ 5
8.4 HALT MODE ........................................................................................................................... 5
8.5 KEYPAD SCANNING ............................................................................................................... 6
8.6 COMMUNICATION INTERFACE ................................................................................................ 6
9.1 EVENT CODE ASSIGNMENT ................................................................................................... 6
9.2 I/O EXPANSION ...................................................................................................................... 7
9.3 HOST COMMAND EXECUTION ................................................................................................ 9
9.4 HOST WRITE COMMANDS .................................................................................................... 10
9.5 HOST READ COMMANDS ...................................................................................................... 10
9.6 WAKE-UP FROM HALT MODE ............................................................................................... 11
10.1 INTERRUPT CODE .............................................................................................................. 12
10.2 ERROR CODE ..................................................................................................................... 12
10.3 STATUS CODES ................................................................................................................. 12
10.4 INTERRUPT PROCESSING .................................................................................................. 12
10.5 COMMAND EXECUTION SUMMARY ..................................................................................... 14
8.4.1 ACCESS.bus Activity ...................................................................................................... 6
8.6.1 Interrupts Between the Host and LM8333 .......................................................................... 6
8.6.2 Interrupt Sources ............................................................................................................ 6
9.2.1 PWM Output with Programmable Duty Cycle ...................................................................... 7
9.2.2 General-Purpose I/O (GPIO) ............................................................................................ 8
9.2.3 External Interrupts .......................................................................................................... 8
9.3.1 Command Structure ........................................................................................................ 9
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