Z8F042AHJ020EC00TR Zilog, Z8F042AHJ020EC00TR Datasheet - Page 138
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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PS022825-0908
Caution:
ADC Compensation Details
High efficiency assembly code that performs this compensation is available for download
on www.zilog.com. The following is a bit-specific description of the ADC compensation
process used by this code.
The following data bit definitions are used:
0-9, a-f = bit indices in hexadecimal
s = sign bit
v = overflow bit
- = unused
Input Data
s b a 9 8 7 6 5
s s s s s 7 6 5
s e d c b a 9 8
Although the ADC can be used without the gain and offset compensation, it does exhibit
non-unity gain. Designing the ADC with sub-unity gain reduces noise across the ADC
range but requires the ADC results to be scaled by a factor of 8/7.
MSB
4 3 2 1 0 - - v (ADC)
s 6 5 4 3 2 1 0
4 3 2 1 0 0 0 0 (Offset)
7 6 5 4 3 2 1 0 (Gain)
LSB
Z8 Encore! XP
ADC Output Word; if v = 1,
the data is invalid
Offset Correction Byte
Offset Byte shifted to align
with ADC data
Gain Correction Word
Product Specification
Analog-to-Digital Converter
®
F082A Series
127
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