Z8F042AHJ020EC00TR Zilog, Z8F042AHJ020EC00TR Datasheet - Page 11

• Manufacturer Part Number: Z8F042AHJ020EC00TR
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020EC00TR

• 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: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Z8F042AHJ020EC00T

Table 5. Z8 Encore! XP
UP006912-0308
Sl
No. Summary
13
14
15
16
17
18
Excessive STOP
Mode Current.
Unstable
Comparator Output.
ADC Input Selection
mode.
IPO 32 kHz
frequency error
Internal Vref has
excessive variation
with V
LED driver works for
red colors only.
0352 and Before 0426 (Continued)
DD
.
®
Description
ICCS, Supply Current in STOP mode, is out of specification. Consumption in
the 1 mA to 3 mA range is typical.
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.
ADC input selection through ADC Control Register 0 (ADCCTL0) bits
ANAIN[3:0] does not ground the transimpedance input nodes as specified.
Single- Ended Mode: ANAIN[3:0] encoded 1100 does not hold
transimpedance input nodes (ANA1 and ANA2) to ground.
Workaround
None
Two frequencies may be chosen for the oscillator: 5.5296 MHz or 32.768 MHz.
The frequency is selected by the OCSEL bits in the ‘Oscillator Control Regis-
ter’. 32 kHz operation is not trimmed to the specified accuracy because of an
error in a divider circuit.
Workaround
None. In 32.768 kHz mode best case frequency is 32.00 kHz.
Internal Voltage Reference (Vref) set by REFSEL field in the ADC Control
register does not stay within specification over the full V
Workaround
ADC measurements assume 15% Vref error when using the internal voltage
reference. The error is 5% more than specified and appears as an ADC gain
error, not as an offset error. External Vref sourced ADC measurements are not
affected by this errata.
Port C GPIO can generate enough current for red LED operation only. Green
LEDs are visible down to V
than specified.
Workaround
Use a higher power setting to compensate for current drop. This workaround
is not recommended for extended LED operation.
F082A Series Errata (20- and 28-pin) Devices with Date Codes
DD
= 2.7 V and will be driven with a lower current
Errata for Z8 Encore! XP
DD
range.
®
F082A Series
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