TWRKL43ZUG Tower Module, User’s Guide, Rev. 1, 08/2014
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Freescale Semiconductor, Inc.
Hardware description
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Hardware description
The TWR-KL43Z is a Tower MCU Module featuring the MKL43Z256VLH4 — a Kinetis microcontroller
with USB 2.0 full-speed device controllers in a 64-LQFP package. It is intended for use in the Freescale
Tower System but can operate standalone. An on-board OpenSDA debug circuit provides a SWD interface
and a power supply input through a single USB mini-AB connector.
The block diagram of the TWR-KL43Z board is presented in
Figure 3
.
6.1
Block diagram
Figure 3. Block diagram of TWR-KL43Z
6.2
Microcontroller
The TWR-KL43Z is a Tower MCU module featuring the MKL43Z256VLH4 —a Kinetis microcontroller
with USB 2.0 full-speed device controller and segment LCD controller in a 64 LQFP package. It is
intended for use in the Freescale Tower System but can operate standalone. An on-board debug circuit,
OpenSDA, provides a SWD interface and a power supply input through a single USB mini-AB connector,
as well as serial to USB and CDC class compliant UART interface.
Table 1. Features of MKL43Z256VLH4
Feature
Description
Ultra-low-power
- 10 low-power modes with power and clock gating for optimal peripheral activity and
recovery times. Stop currents of <190 nA (VLLS0), run currents of <280 uA/MHz, 4 s wake-up
from Stop mode
- Full memory and analog operation down to 1.71V for extended battery life
- Low-leakage wake-up unit with up to eight internal modules and eight pins as wake-up
sources in low-leakage stop (LLS)/very low-leakage stop (VLLS) modes
- Low-power timer for continual system operation in reduced power states
