Z8F4822VS020SG Zilog, Z8F4822VS020SG Datasheet - Page 131

• Manufacturer Part Number: Z8F4822VS020SG
• Description: IC ENCORE MCU FLASH 48K 68PLCC
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F4822VS020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 68-LCC (J-Lead)
• Processor Series: Z8F482x
• Core: eZ8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 46
• Number Of Timers: 4
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-4273; Z8F4822VS020SG

Table 59. UART Baud Rate High Byte Register (UxBRH)
Table 60. UART Baud Rate Low Byte Register (UxBRL)
PS019921-0308
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
7
7
For a given UART data rate, the integer baud rate divisor value is calculated using the
following equation:
The baud rate error relative to the desired baud rate is calculated using the following
equation:
For reliable communication, the UART baud rate error must never exceed 5 percent.
Table 61
used crystal oscillator frequencies.
UART Baud Rate Divisor Value (BRG)
UART Baud Rate Error (%)
provides information on data rate errors for popular baud rates and commonly
6
6
5
5
=
100
F46H and F4EH
F47H and F4FH
4
4
×


BRH
R/W
BRL
R/W
Actual Data Rate Desired Data Rate
------------------------------------------------------------------------------------------ -
1
1
=
Round
3
3
Desired Data Rate


System Clock Frequency (Hz)
------------------------------------------------------------------------
16
×
Z8 Encore! XP
UART Data Rate (bits/s)
–
2
2
Product Specification
1
1
®
F64XX Series




0
0
UART
117