Z8038018FSG Zilog, Z8038018FSG Datasheet - Page 31

• Manufacturer Part Number: Z8038018FSG
• Description: IC 16 BIT Z80 MPU 100-QFP
• Manufacturer: Zilog

Specifications of Z8038018FSG

• Processor Type: Z380
• Features: 16-Bit, High-Performance Enhanced Z80 CPU
• Speed: 18MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 100-QFP
• Processor Series: Z80380x
• Core: Z380
• Program Memory Size: 64 KB
• Maximum Clock Frequency: 18 MHz
• Operating Supply Voltage: 0 V to 5 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PS010002-0708
ADDRESS
/INTAK
/IOWR
IOCLK
/IORQ
/IORD
/WAIT
EXTERNAL INTERFACE (Continued)
DATA
/M1
Interrupt Acknowledge Transactions
An interrupt acknowledge transaction is generated by the Z380 MPU in response to an
unmasked external interrupt request. Figure 21 shows an interrupt acknowledge transac-
tion in response to /INT0 and Figure 22 shows an interrupt acknowledge transaction in
response to either one of /INT-3. Note that because all I/O bus transactions start on a rising
edge of IOCLK, there may be up to n BUSCLK cycles of latency between the execution
unit request for the transaction and the transaction actually starting (where n is the pro-
grammed clock divisor for IOCLK).
Figure 21. Interrupt Acknowledge Cycle, /INT0
Z380 Microprocessor
Product Specification
Page 31 of 125