See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

NJE | 32

Temp:

I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

LM8333FLQ8Y/NOPB


Mobile I/O Companion Supporting Key-Scan, I/O Expansion, PWM, and ACCESS.bus Host Interface

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Qty.Price
1 - 9 $ 3.99
10 - 24 $ 3.58
25 - 99 $ 3.37
100 - 249 $ 2.94
250 - 499 $ 2.74
500 - 749 $ 2.36
750 - 999 $ 2.02
1000 - 9999 $ 1.71

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Texas Instruments LM8333FLQ8Y/NOPB

The LM8333 Mobile I/O Companion offloads the burden of keyboard scanning from the host, while providing extremely low power consumption in both operational and standby modes. It supports keypad matrices up to 8 × 8 in size (plus another 8 special-function keys), for portable applications such as cellphones, PDAs, games, and other handheld applications.

Key press and release events are encoded into a byte format and loaded into a FIFO buffer for retrieval by the host processor. An interrupt output (IRQ) is used to signal events such as keypad activity, a state change on either of two interrupt-capable general-purpose I/O pins, or an error condition. Interrupt and error codes are available to the host by reading dedicated registers.

Four general-purpose I/O pins are available, two of which have interrupt capability. A pulse-width modulated output based on a host-programmable internal timer is also available, which can be used as a general-purpose output if the PWM function is not required.

To minimize power, the LM8333 automatically enters a low-power standby mode when there is no keypad, I/O, or host activity.

The device is packaged in a 32–pin WQFN and a
49-pin csBGA. Both are chip-scale packages.

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