Z8F042AHJ020EC00TR Zilog, Z8F042AHJ020EC00TR Datasheet - Page 51
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Z8F042AHJ020EC00TR
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
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Crystal Oscillator Override
5 V Tolerance
External Clock Setup
PS022825-0908
Note:
tions as a GPIO pin. If it is not present, the debug feature is disabled until/unless another
reset event occurs. For more details, see
For systems using a crystal oscillator, PA0 and PA1 are used to connect the crystal. When
the crystal oscillator is enabled (see
the GPIO settings are overridden and PA0 and PA1 are disabled.
All six I/O pins on the 8-pin devices are 5 V-tolerant, unless the programmable pull-ups
are enabled. If the pull-ups are enabled and inputs higher than V
parts, excessive current flows through those pull-up devices and can damage the chip.
In the 20- and 28-pin versions of this device, any pin which shares functionality with an
ADC, crystal or comparator port is not 5 V-tolerant, including PA[1:0], PB[5:0] and
PC[2:0]. All other signal pins are 5 V-tolerant, and can safely handle inputs higher than
V
For systems using an external TTL drive, PB3 is the clock source for 20- and 28-pin
devices. In this case, configure PB3 for alternate function CLKIN. Write the Oscillator
Control (OSCCTL) register (see
that the external oscillator is selected as the system clock. For 8-pin devices use PA1
instead of PB3.
DD
except when the programmable pull-ups are enabled.
Oscillator Control Register Definitions
Oscillator Control Register Definitions
On-Chip Debugger
Z8 Encore! XP
on page 173
General-Purpose Input/Output
DD
Product Specification
are applied to these
on page 190) such
®
.
F082A Series
on page 190),
40
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