EZ80190AZ050SG Zilog, EZ80190AZ050SG Datasheet - Page 49

• Manufacturer Part Number: EZ80190AZ050SG
• Description: IC WEBSERVER 8 BIT 50MHZ 100LQFP
• Manufacturer: Zilog

Specifications of EZ80190AZ050SG

• Processor Type: eZ80
• Features: High Speed, Single-Cycle Instruction-Fetch
• Speed: 50MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Processor Series: EZ80190x
• Core: eZ80
• Data Bus Width: 8 bit
• Program Memory Type: ROMLess
• Data Ram Size: 8 KB
• Interface Type: I2C, IrDA, SPI, UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 6
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3866; EZ80190AZ050SG

Watchdog Timer
WDT Overview
PS006614-1208
The key features of eZ80190 device includes:
•
•
•
Figure 6
Clock
Four programmable time-out periods: 2
A WDT time-out RESET indicator flag
A selectable time-out response: a time-out generates a RESET or a nonmaskable
interrupt
displays the block diagram for the WDT.
WDT Control Register
WDT Reset Register
Reset Control Logic
Watchdog Timer
Control Logic
Upcounter
Data[7:0]
Data[7:0]
and
and
Figure 6. WDT Block Diagram
18
, 2
22
, 2
25
, and 2
RESET
NMI to eZ80
CPU
27
clock cycles
Product Specification
®
Watchdog Timer
eZ80190
39