ZLF645E0Q2064G Zilog, ZLF645E0Q2064G Datasheet - Page 134

• Manufacturer Part Number: ZLF645E0Q2064G
• Description: IC MCU 64K FLASH 1K RAM 20-QFN
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0Q2064G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 16
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4723

PS026407-0408
Bit Position
[5]
[4]
[3]
[2]
[1]
[0]
Note:
Value
The IRQ register is protected from change until an EI instruction is executed once.
Read
Read
Read
Read
Read
Read
Write
Write
Write
Write
Write
Write
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Description
IRQ5 (Low-Voltage Detection)
Interrupt did not occur.
Interrupt occurred.
Clear interrupt.
Set interrupt.
IRQ4 (T8 Counter)
Interrupt did not occur.
Interrupt occurred.
Clear interrupt.
Set interrupt.
IRQ3 (T16 Counter)
Interrupt did not occur.
Interrupt occurred.
Clear interrupt.
Set interrupt.
IRQ2 (Port 3 Bit 1 Input)
Interrupt did not occur.
Interrupt occurred.
Clear interrupt.
Set interrupt.
IRQ1 (Port 3 Bit 3 Input/SMR Event/UART T
Interrupt did not occur.
Interrupt occurred.
Clear interrupt.
Set interrupt.
IRQ0 (Port 3 Bit 2 Input/UART R
Interrupt did not occur.
Interrupt occurred.
Clear interrupt.
Set interrupt.
X
)
X
/UART BRG)
ZLF645 Series Flash MCUs
Product Specification
Interrupt Request Register
126