Z8F022ASJ020SC Zilog, Z8F022ASJ020SC Datasheet - Page 8

• 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 4. Z8 Encore! XP
UP006912-0308
Sl
No. Summary
9
10
11
12
13
14
15
WDT Default
Timeout Period
longer than
specified.
IPO current
consumption higher
than typically
specified.
Open Drain Output
Control only on Port
A.
ADC Internal
Reference Voltage
Error.
STOP mode current
out of specification.
Unstable
Comparator Output.
External Vref is not
available on 20-pin
parts.
0426 and Before 0440 (Continued)
®
Description
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.
When the IPO is enabled, the product specification gives a typical current
consumption of 300 µA. The consumption for these date codes is typically 1.5
mA.
Workaround
None.
Open drain output configuration set by Port A-D Output Control sub registers
is possible only for Port A pins. It is not possible to configure Port B, C, D pins
for open drain output.
Workaround
None. Use Port A pins for open drain output.
Internal Reference Voltage (Vref) set by REFSEL field in the ADC Control
Register was not set optimally, reporting 1.91 V for a specified 2.0 V setting.
Workaround
None. External Vref sourced ADC measurements are not affected by this
errata.
Measured STOP mode current with LPO ON is 50 µA typical versus the
specified 10 µA. STOP mode current with all peripherals OFF is 4 µA typical
versus the specified 2 µA.
Workaround
None.
Internal reference voltage level set by the REFLVL field in the Comparator
Control Register causes an unstable comparator output, worsening as the
internal reference voltage increases.
Workaround
None.
For 20-pin devices, external Vref is not an option on pin PC2.
Workaround
None.
F082A Series Errata (20- and 28-pin Devices) with Date Codes
Errata for Z8 Encore! XP
®
F082A Series
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