Z16FMC64AG20SG Zilog, Z16FMC64AG20SG Datasheet - Page 309

• Manufacturer Part Number: Z16FMC64AG20SG
• Description: Microcontrollers (MCU) 16BIT 64K FL 4K RAM 2UART 12CH 10BIT A/D
• Manufacturer: Zilog
• Series: Z16FMCr

Specifications of Z16FMC64AG20SG

• Processor Series: Z16FMC
• Core: ZNEO
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 46
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-64
• Development Tools By Supplier: Z16FMC28200KITG
• Minimum Operating Temperature: 0 C
• Core Processor: ZNEO
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 46
• Eeprom Size: -
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Lead Free Status / Rohs Status: Details

Oscillator Control
Operation
PS028702-1210
System Clock Selection
The Z16FMC device uses three possible user-selectable clocking schemes:
•
•
•
In addition, Z16FMC devices contain clock failure detection and recovery circuitry, allow-
ing continued operation despite a failure of the primary oscillator.
The on-chip system clock frequency is reduced through a clock divider allowing reduced
dynamic power dissipation. Flash memory is powered down during portions of the clock
period when running slower than 10 MHz.
This section explains the logic used to select the system clock, divide down the system
clock and handle oscillator failures. A description of the specific operation of each oscilla-
tor is outlined elsewhere in this document. See
the
on page 282.
The oscillator control block selects from the available clocks. Table 165 details each clock
source and its usage.
Internal Precision Oscillator
Trimmable internal precision oscillator
On-chip oscillator using off-chip crystal/resonator or external clock driver
On-chip low precision Watchdog Timer oscillator
P R E L I M I N A R Y
chapter on page 286, and the
Z16FMC Series Motor Control MCUs
the Watchdog Timer chapter on page
On-Chip Oscillator
Product Specification
Oscillator Control
chapter
104,
287