ENABLEMENT
}TWR-KM34Z75M/TWR-KM34Z50M
Tower® System development module
}Reference designs (available for loan)
– Low-cost three-phase/single-phase
power meters for markets in Asia
– Three-phase/single-phase power
meters for markets in EMEA
– Two-phase power meter for
markets in AMR/JPN
}Kinetis Design Studio integrated
development environment (IDE),
a free and unlimited IDE that
includes Processor Expert® software
configuration tool with Kinetis SDK
integration
}IAR Embedded Workbench®, ARM
Keil® MDK IDEs and others from the
ARM technology ecosystem
}Application notes
}Tower System development platform
Analog front end
}24-bit sigma-delta ADC with
94 dB SNR
}Programmable gain amplifier
with gains from 1 to 32 with low
temperature drift
}High-precision internal voltage
reference with low temperature drift
}Up to 16-channel, 16-bit SAR ADC
Security
}Memory mapped cryptographic
acceleration unit (MMCAU) for
AES encryption
}Memory protection unit, AIPS
(peripheral protection), random
number generator, CRC
Interface
}LCD segment driver up to 448
(56 x 8) segments
}High-accuracy RTC +-5 PPM over
temperature range
}Up to five UART, two SPI, two I2C
Other specifications
}Voltage range: 1.71–3.6 V (without AFE)
}Voltage range: 2.7–3.6 V (with AFE)
}Temperature range: –40 °C to +105 °C
KEY FEATURES
}High-performance ultra-low-power
Cortex-M0+ core
}24-bit sigma-delta ADC and PGA
achieving 94 dB SNR
}High-accuracy RTC with +5 PPM
over temperature
}Rich set of security: MPU, active tamper,
RNG for Welmec-compliant meters
}Pre-certified metrology software
KINETIS M SERIES METERING MCUs
Optional
System Memory
Core
Interrupt
Controller
SWD
Interface
H/W Arithmetic
Unit
MTB
ARM® Cortex® -M0+ Core
Up to 75 MHz
Measurement Front End
64-256 KB Flash
BME
Low-Leakage
Wake-Up Unit
Inter Peripheral
Crossbar
Watchdog
MPU
EWM
16-32 KB SRAM 16-ch., 16-bit
SAR ADC
Up to 3 x
HSCMP
4 x 24-bit Sigma
Delta ADC
Up to
4 x PGA
Phase Shifter
1.2 V VREF
16/32 Cyclic
Redundancy
Check
Random
Number
Generator
Tamper
Detection
MMCAU
Timers Communication Interfaces Clocks
Phase Locked
Loop
Frequency
Locked Loop
Low-/High-
Frequency
Oscillators
Internal
Reference
Clocks
Security Display
Segment LCD
Controller
(Up to 448
Segments,
56 x 8)
2 x Periodic
Interrupt Timers
4 x Quad Timer
Low-Power
Timer
IRTC on vBatt
with T° comp.
Programmable
Delay Block
2 x 16-bit SPI 2 x I2C
Up to 5 x
UARTs
(2 x ISO7816,
1 x LPUART)
Up to 99 GPIO