Z8F022ASJ020SC Zilog, Z8F022ASJ020SC Datasheet - Page 5

• Manufacturer Part Number: Z8F022ASJ020SC
• Description: IC ENCORE XP MCU FLASH 2K 28SOIC
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F022ASJ020SC

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 23
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3355

Table 3. Z8 Encore! XP
UP006912-0308
Sl
No. Summary
3
4
5
6
7
8
9
Temperature
sensor absolute
error exceeds
specification.
Writes to the TPOL
bit must be done
twice when the timer
is not enabled.
Programmable
pull-up resistors
source less than the
specified current.
PD0 will not output a
strong high.
VBO/POR
Hysteresis is greater
than specified in the
product
specification.
ADC differential
mode calibration
data.
WDT Default
Timeout Period
longer than
specified.
0440 and Later (Continued)
®
Description
The temperature sensor absolute error is outside the specification over the full
temperature/voltage range.
Workaround
Recalibrate the sensor at the user application temperature or use the
When the timer is not enabled, the TPOL bit does not affect the timer output
when changed.
Workaround
When the timer is not enabled, write the Timer Control Register 1 twice with
the same value. This will cause the correct timer output behavior to occur.
The pull-up devices are specified to source at least 30 µA. In actuality, the pull-
up devices may source as little as 7 µA.
Workaround
If a faster pull-up is required, use an external pull-up resistor.
The PMOS output device of the PD0 port is disabled. The PD0 port will not
output a high level unless the internal pull-up resistor is enabled. This pull-up
resistor is enabled by default but it should not be turned off unless the port is
pulled up externally. Because there is no active drive high, the PD0 port will
only produce slow rising edges.
Workaround
If a fast rising edge response time is required, use another GPIO port.
The hysteresis has been measured to be around 100 mV.
Workaround
None.
The ADC calibration data stored in the info block will cause significant error for
negative input values on the ADC. This is a production test/calibration issue.
Workaround
All devices with Date Code 0519 or greater have separate calibration data for
the negative input values. For details, refer to product specification.
In the product specification the default timeout period is 100 ms. However, for
this version of silicon, the default is equal to the maximum timeout value.
Workaround
Manually set the WDT timeout to the desired value.
temperature sensor output for relative measurements.
F082A Series Errata (20- and 28-pin Devices) with Date Codes
Errata for Z8 Encore! XP
®
F082A Series
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