Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 120

• Manufacturer Part Number: Z8F2480AN020SG
• Description: MCU 8BIT 24KB FLASH 44LQFP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F2480AN020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 37
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-LQFP
• Processor Series: Z8F248x
• Core: eZ8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 37
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU269-4643 - KIT DEV Z8 ENCORE XP 28-PIN269-4630 - DEV KIT FOR Z8 ENCORE 8K/4K269-4629 - KIT DEV Z8 ENCORE XP 28-PIN269-4628 - KIT DEV Z8 ENCORE XP 8-PIN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-4676

PS025011-1010
TxIN (ideal)
Noise Filter
Up/Dn Cntr
TxIN (noisy)
Noise Filter
Output
Noise Filter
Up/Dn Cntr
Noise Filter
Output
NEF
output
Timer
Clock
Input
Input
3 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3
3 3 2 1 0 0 0 0 0 0 1 2 1 0 0 0 0 0 1 0 1 2 3 3 3 3 2 3 3 3 3 3 3 3
switches from 0 to 1 when the counter counts up from 10 to 11. The Noise Filter delays the
receive data by three Timer Clock cycles.
The NEF output signal is checked when the filtered TxIN input signal is sampled. The
Timer samples the filtered TxIN input near the center of the bit time. The NEF signal
must be sampled at the same time to detect whether there is noise near the center of the bit
time. The presence of noise (NEF = 1 at center of bit time) does not mean the sampled data
is incorrect, rather it is intended to be an indicator of the level of noise in the network.
Data Bit = 0
Figure 13. Noise Filter Operation
Data Bit = 0
P R E L I M I N A R Y
nominal filter delay
Data Bit = 1
Data Bit = 1
Z8 Encore! XP
Product Specification
®
Clean TxIN
example
Noise TxIN
example
F1680 Series
Timers
106