Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 179
Z8F011ASH020EG2156
Manufacturer Part Number
Z8F011ASH020EG2156
Description
8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
Manufacturer
ZiLOG
Datasheet
1.Z8F011AHJ020EG2156.pdf
(257 pages)
Specifications of Z8F011ASH020EG2156
Rohs
yes
Core
eZ8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
1 KB
Data Ram Size
256 B
On-chip Adc
No
Package / Case
SOIC-20
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
17
Number Of Timers
2
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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Internal Precision Oscillator
PS025113-1212
Operation
Note:
The Internal Precision Oscillator (IPO) is designed for use without external components.
The user can either manually trim the oscillator for a nonstandard frequency or use the
automatic factory-trimmed version to achieve a 5.53 MHz frequency with ± 4% accuracy
and 45%~55% duty cycle over the operating temperature and supply voltage of the device.
The maximum start-up time of the IPO is 25 µs. IPO features include:
•
•
•
•
The internal oscillator is an RC relaxation oscillator with a minimized sensitivity to power
supply variations. By using ratio-tracking thresholds, the effect of power supply voltage is
cancelled out. The dominant source of oscillator error is the absolute variance of chip-
level fabricated components, such as capacitors. An 8-bit trimming register, incorporated
into the design, compensates for absolute variation of oscillator frequency. Once trimmed,
the oscillator frequency is stable and does not require subsequent calibration. Trimming
was performed during manufacturing and is not necessary for the user to repeat unless a
frequency other than 5.53 MHz (FAST mode) or 32.8 kHz (SLOW mode) is required.
The user can power down the IPO block for minimum system power.
By default, the oscillator is configured through the Flash option bits. However, the user
code can override these trim values, as described in the
page 129.
Select one of two frequencies for the oscillator: 5.53 MHz or 32.8 kHz, using the OSCSEL
bits described in the
On-chip RC oscillator that does not require external components
Output frequency of either 5.53 MHz or 32.8 kHz (contains both a FAST and a SLOW
mode)
Trimming possible through Flash option bits, with user override
Elimination of crystals or ceramic resonators in applications where high timing accu-
racy is not required
Oscillator Control
chapter on page 151.
Trim Bit Address Space
Z8 Encore!
Internal Precision Oscillator
Product Specification
®
F0830 Series
section on
161
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