Z84C2008PEG Zilog, Z84C2008PEG Datasheet - Page 95

• 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

Z80 Instruction Set
UM008005-0205
Z80 Assembly Language
The assembly language allows the user to write a program without concern
for memory addresses or machine instruction formats. It uses symbolic
addresses to identify memory locations and mnemonic codes (Op Codes
and operands) to represent the instructions. Labels (symbols) are assigned
to a particular instruction step in a source program to identify that step as
an entry point for use in subsequent instructions. Operands following each
instruction represent storage locations, registers, or constant values. The
assembly language also includes assembler directives that supplement the
machine instruction. A pseudo-op, for example, is a statement that is not
translated to a machine instruction, but rather is interpreted as a directive
that controls the assembly process.
A program written in assembly language is called a source program, which
consists of symbolic commands called statements. Each statement is
written on a single line and may consist of from one to four entries: A label
field, an operation field, an operand field, and a comment field. The source
program is processed by the assembler to obtain a machine language
program (object program) that can be executed directly by the Z80 CPU.
ZiLOG provides several assemblers that differ in the features offered.
Both absolute and relocatable assemblers are available with the
Development and Micro-computer Systems. The absolute assembler is
contained in base level software operating in a 16K memory space, while
the relocating assembler is part of the RIO environment operating in a
32K memory space.
Z80 Instruction Set
User’s Manual
Z80 CPU
75