Z8F042AHH020SC00TR Zilog, Z8F042AHH020SC00TR Datasheet - Page 7

• Manufacturer Part Number: Z8F042AHH020SC00TR
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020SC00TR

• 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: 17
• 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 7x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Z8F042AHH020SC00T

Table 4. Z8 Encore! XP
UP006912-0308
Sl
No. Summary
2
3
4
5
6
7
8
LPO sink current is
less than specified in
the product
specification.
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.
0426 and Before 0440 (Continued)
®
Description
The sink current may drop below 1 µA over temperature and supply voltage.
Workaround
An external pull-down resistor will improve the sink current performance.
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
temperature sensor output for relative measurements.
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
Manually re-calibrate the device for negative ADC input values.
F082A Series Errata (20- and 28-pin Devices) with Date Codes
Errata for Z8 Encore! XP
®
F082A Series
Page 7 of 14