Z8018010PSG Zilog, Z8018010PSG Datasheet - Page 128

• Manufacturer Part Number: Z8018010PSG
• Description: IC 10MHZ Z180 CMOS ENH MPU 64DIP
• Manufacturer: Zilog

Specifications of Z8018010PSG

• Processor Type: Z180
• Features: 8-Bit, Enhanced Z80 Megacell
• Speed: 10MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 64-DIP (0.750", 19.05mm)
• Processor Series: Z8018xx
• Core: Z80
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 10 MHz
• Number Of Timers: 2
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: 0 C
• Core Size: 8bit
• Cpu Speed: 10MHz
• Digital Ic Case Style: DIP
• No. Of Pins: 64
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 8018010
• Rohs Compliant: Yes
• Clock Frequency: 10MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3889; Z8018010PSG

Z8018x
Family MPU User Manual
113
cycle is extended to 4 clocks by automatic insertion of one internal Ti
state.
DMAC Channel Priority
For simultaneous DREQ0 and DREQ1 requests, channel 0 has priority
over channel 1. When channel 0 is performing a memory to/from memory
transfer, channel 1 cannot operate until the channel 0 operation has
terminated. If channel 1 is operating, channel 0 cannot operate until
channel 1 releases control of the bus.
DMAC and BUSREQ, BUSACK
The BUSREQ and BUSACK inputs allow another bus master to take
control of the Z8X180 bus. BUSREQ and BUSACK take priority over the
on-chip DMAC and suspends DMAC operation. The DMAC releases the
bus to the external bus master at the breakpoint of the DMAC memory or
I/O access. Since a single byte DMAC transfer requires a read and a write
cycle, it is possible for the DMAC to be suspended after the DMAC read,
but before the DMAC write. Hence, when the external master releases the
Z8X180 bus (BUSREQ High), the on-chip DMAC correctly continues
the suspended DMA operation.
UM005003-0703