Z84C0010PEG Zilog, Z84C0010PEG Datasheet - Page 25

• Manufacturer Part Number: Z84C0010PEG
• Description: IC 10MHZ Z80 CMOS CPU 40-DIP
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z84C0010PEG

• Processor Type: Z80
• Features: Enhanced Z80 Microprocessor/CPU
• Speed: 10MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.620", 15.75mm)
• Core Size: 8bit
• Cpu Speed: 10MHz
• Digital Ic Case Style: DIP
• No. Of Pins: 40
• Operating Temperature Range: -40°C To +100°C
• Svhc: No SVHC (18-Jun-2010)
• Operating Temperature Max: 100°C
• Rohs Compliant: Yes
• Processor Series: Z84C0xx
• Core: Z80
• Data Bus Width: 8 bit
• Program Memory Size: 64 KB
• Maximum Clock Frequency: 10 MHz
• 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: 10MHz
• Frequency Typ: 10MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3898; Z84C0010PEG

Z80 CPU
User’s Manual
5
Accumulator and Flag Registers
The CPU includes two independent 8-bit accumulators and associated 8-bit
flag registers. The accumulator holds the results of 8-bit arithmetic or logical
operations while the
register indicates specific conditions for 8-bit or
FLAG
1 16-bit operations, such as indicating whether or not the result of an
operation is equal to zero. The programmer selects the accumulator and flag
pair with a single exchange instruction so that it is possible to work with
either pair.
General Purpose Registers
Two matched sets of general-purpose registers, each set containing six 8-bit
registers, may be used individually as 8-bit registers or as 16-bit register
pairs. One set is called BC, DE, and HL while the complementary set is
called BC', DE', and HL'. At any one time, the programmer can select either
set of registers to work through a single exchange command for the entire
set. In systems that require fast interrupt response, one set of general-
purpose registers and an
register may be reserved for
ACCUMULATOR/FLAG
handling this fast routine. One exchange command is executed to switch
routines. This greatly reduces interrupt service time by eliminating the
requirement for saving and retrieving register contents in the external stack
during interrupt or subroutine processing. These general-purpose registers
are used for a wide range of applications. They also simplify programing,
specifically in ROM-based systems where little external read/write memory
is available.
Arithmetic Logic Unit (ALU)
The 8-bit arithmetic and logical instructions of the CPU are executed in the
ALU. Internally, the ALU communicates with the registers and the external
data bus by using the internal data bus. Functions performed by the ALU
include:
UM008005-0205
Overview