Z8F0431SJ020SG Zilog, Z8F0431SJ020SG Datasheet - Page 101

• Manufacturer Part Number: Z8F0431SJ020SG
• Description: IC ENCORE XP MCU FLASH 4K 28SOIC
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F0431SJ020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• For Use With: 770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-4627-5

Analog-to-Digital Converter
Architecture
PS025111-1207
The Z8 Encore!
Analog-to-Digital Converter (ADC). The ADC converts an analog input signal to a 10-bit
binary number. The features of the SAR ADC include:
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The ADC architecture, as displayed in
sample-and-hold amplifier, and 10-bit SAR ADC. The ADC digitizes the signal on a
selected channel and stores the digitized data in the ADC data registers. In an environment
with high electrical noise, an external RC filter must be added at the input pins to reduce
high-frequency noise.
Tconv = Ts/h + Tcon
Tconv = Ts + Th +13*SCLK*16
where,
SCLK = System clock
Tconv = Total conversion time
Ts = Sample time (SCLK*ADCST)
Tcon = Conversion time (13*SCLK*16)
Th = Hold time (SCLK*ADCSST)
DIV = 16 (Fixed to 16 divide for this product)
Example (F0830 @ 20 MHz)
Tconv = 1µS + 0.5µS +13*SCLK*DIV
Tconv = 1µS + 0.5µS +13*(1/20MHz)*16 = 11.9 µs
Eight analog input sources multiplexed with general purpose I/O ports
Fast conversion time, less than 11.9 µs
Programmable timing controls
Interrupt on conversion complete
Internal voltage reference generator
Ability to select external reference voltage
When configuring ADC using external Vref, PB5 is used as Vref in 28-pin package.
®
includes an eight-channel Successive Approximation Register (SAR)
Figure
11, consists of an 8-input multiplexer,
Z8 Encore!
Product Specification
Analog-to-Digital Converter
®
F0830 Series
91