Z8FMC160100KIT Zilog, Z8FMC160100KIT Datasheet - Page 205

• Manufacturer Part Number: Z8FMC160100KIT
• Description: KIT DEV FOR Z8 ENCORE Z8FMC16100
• Manufacturer: Zilog
• Series: Z8 Encore! MC™r

Specifications of Z8FMC160100KIT

• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: Z8FMC16100
• Primary Attributes: 3-Ph DC Motors
• Secondary Attributes: Graphic User Interface
• Processor To Be Evaluated: Z8FMC16100
• Data Bus Width: 8 bit
• Interface Type: USB
• For Use With: 269-4664 - KIT ACC OPTO-ISO USB SMART CABLE269-4661 - KIT ACC ETHERNET SMART CABLE269-4539 - KIT ACCESSORY USB SMART CABLE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3639

Comparator and Operational Amplifier
PS024613-0910
Comparator Operation
The Z8FMC16100 Series Flash MCU devices feature a general-purpose comparator and an
operational amplifier. The comparator is a moderate speed (200 ns propagation delay)
device that is designed for a maximum input offset of 5 mV. The comparator is used to
compare two analog input signals. General-purpose input pins (CINP and CINN) provide
the comparator inputs. The output is available as an interrupt source.
The operational amplifier is a two-input, one-output operational amplifier with a open
loop gain of 10,000 (80 dB). One general-purpose input pin (OPINP) provides a non-
inverting amplifier input, while another general-purpose input pin (OPINN) provides the
inverting amplifier input. The output is available at the output pin (OPOUT).
The key operating characteristics of the operational amplifier are:
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The comparator output reflects the relationship between the non-inverting input and the
inverting (reference) input. If the voltage on the non-inverting input is higher than the
voltage on the inverting input, the comparator output is at a High state. If the voltage on
the non-inverting input is lower than the voltage on the inverting input, the comparator
output is at a Low state.
To operate, the comparator must be enabled by setting the CMPEN bit in the Comparator
and Op Amp Register to 1. In addition the CINP and CINN comparator input alternate
functions must be enabled on their respective GPIO pins. For more information, see
Alternate Functions on page
The comparator does not automatically power-down. To reduce operating current when
not in use, the comparator is disabled by clearing the
Input common-mode range from GND (0.0 V) to V
Input offset voltage less than 15 mV
Output voltage swing from GND + 0.1 V to V
Input bias current less than 1 nA
Operating the operational amplifier open loop (no feedback) effectively provides
another on-chip comparator (if appropriate)
34.
DD
Z8FMC16100 Series Flash MCU
CMPEN
– 0.1 V
DD
– 1 V
bit to 0.
Product Specification
Comparator Operation
GPIO
193