Z84C9008VSG Zilog, Z84C9008VSG Datasheet - Page 30

• Manufacturer Part Number: Z84C9008VSG
• Description: IC 8MHZ Z80 KIO 84-PLCC
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z84C9008VSG

• Processor Type: Z80
• Features: Serial/Parallel Input/Output, Counter/Timer Circuit
• Speed: 8MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 84-LCC (J-Lead)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Cpu Speed: 8MHz
• Digital Ic Case Style: LCC
• No. Of Pins: 84
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Rohs Compliant: Yes
• Base Number: 84
• Clock Frequency: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10
UM008005-0205
Z80 CPU
User’s Manual
interrupt status to Mode 0. During reset time, the address and data bus go to
a high-impedance state, and all control output signals go to the inactive
state. Notice that RESET must be active for a minimum of three full clock
cycles before the reset operation is complete.
RFSH
Refresh (output, active Low). RFSH, together with MREQ indicates that
the lower seven bits of the system’s address bus can be used as a refresh
address to the system’s dynamic memories.
WAIT
WAIT (input, active Low). WAIT communicates to the CPU that the
addressed memory or I/O devices are not ready for a data transfer. The CPU
continues to enter a WAIT state as long as this signal is active. Extended
WAIT periods can prevent the CPU from properly refreshing dynamic
memory.
WR
Write (output, active Low, tristate). WR indicates that the CPU data bus
holds valid data to be stored at the addressed memory or I/O location.
CLK
Clock (input). Single-phase MOS-level clock.
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