Z84C2008PEG Zilog, Z84C2008PEG Datasheet - Page 22

• Manufacturer Part Number: Z84C2008PEG
• Description: IC 8MHZ Z80 CMOS PIO 40-DIP
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z84C2008PEG

• Processor Type: Z80
• Features: Low Power CMOS
• Speed: 8MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.620", 15.75mm)
• Cpu Speed: 8MHz
• Digital Ic Case Style: DIP
• No. Of Pins: 40
• Supply Voltage Range: 5V
• Operating Temperature Range: -40°C To +100°C
• Svhc: No SVHC (18-Jun-2010)
• Rohs Compliant: Yes
• Processor Series: Z84C2xx
• Core: Z80
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 16
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 100 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Base Number: 84
• Clock Frequency: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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UM008005-0205
Z80 CPU
User’s Manual
CPU and
System
Control
Signals
13
CPU Registers
Figure 1.
The Z80 CPU contains 208 bits of R/W memory that are available to the
programmer. Figure 2 illustrates how this memory is configured to eighteen
8-bit registers and four 16-bit registers. All Z80 registers are implemented
using static RAM. The registers include two sets of six general-purpose
registers that may be used individually as 8-bit registers or in pairs as 16-bit
registers. There are also two sets of accumulator and flag registers and six
special-purpose registers.
Z80 CPU Block Diagram
I
n
+5V GND CLK
Control
Register
CPU
Inst.
Internal Data Bus
Registers
Data Bus
Address
Control
Control
16-Bit
Address Bus
CPU
Overview
ALU