Z8F042AHJ020SC00TR Zilog, Z8F042AHJ020SC00TR Datasheet - Page 152

• Manufacturer Part Number: Z8F042AHJ020SC00TR
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SC00TR

• 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: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Z8F042AHJ020SC00T

Flash Memory
PS022825-0908
Architecture
The products in the Z8 Encore! XP
memory of 8 KB (8192), 4 KB (4096), 2 KB (2048 bytes), or 1 KB (1024) with read/write/
erase capability. The Flash Memory can be programmed and erased in-circuit by user code
or through the On-Chip Debugger. The features include:
The Flash memory array is arranged in pages with 512 bytes per page. The 512 byte page
is the minimum Flash block size that can be erased. Each page is divided into 8 rows of 64
bytes.
For program or data protection, the Flash memory is also divided into sectors. In the
Z8 Encore! XP F082A Series, these sectors are either 1024 bytes (in the 8 KB devices) or
512 bytes (all other memory sizes) in size. Page and sector sizes are not
generally equal.
The first 2 bytes of the Flash Program memory are used as Flash Option Bits. For more
information about their operation, see
Table 76
F082A Series.
Table 76. Z8 Encore! XP F082A Series Flash Memory Configurations
Part Number
Z8F08xA
Z8F04xA
Z8F02xA
Z8F01xA
•
•
•
User controlled read and write protect capability
Sector-based write protection scheme
Additional protection schemes against accidental program and erasure
describes the Flash memory configuration for each device in the Z8 Encore! XP
Figure 21
KB (Bytes)
Flash Size
8 (8192)
4 (4096)
2 (2048)
1 (1024)
displays the Flash memory arrangement.
Pages
Flash
®
16
8
4
2
F082A Series feature a non-volatile Flash
Flash Option Bits
Program Memory
0000H–1FFFH
0000H–0FFFH
0000H–07FFH
0000H–03FFH
Addresses
Z8 Encore! XP
on page 153.
Product Specification
Flash Sector
Size (Bytes)
1024
512
512
512
®
F082A Series
Flash Memory
141