August 1990 Order Number: 231456-006
8088
8-BIT HMOS MICROPROCESSOR
8088/8088-2
Y
8-Bit Data Bus Interface
Y
16-Bit Internal Architecture
Y
Direct Addressing Capability to 1 Mbyte
of Memory
Y
Direct Software Compatibility with 8086
CPU
Y
14-Word by 16-Bit Register Set with
Symmetrical Operations
Y
24 Operand Addressing Modes
Y
Byte, Word, and Block Operations
Y
8-Bit and 16-Bit Signed and Unsigned
Arithmetic in Binary or Decimal,
Including Multiply and Divide
Y
Two Clock Rates:
— 5 MHz for 8088
— 8 MHz for 8088-2
Y
Available in EXPRESS
— Standard Temperature Range
— Extended Temperature Range
The Intel 8088 is a high performance microprocessor implemented in N-channel, depletion load, silicon gate
technology (HMOS-II), and packaged in a 40-pin CERDIP package. The processor has attributes of both 8-
and 16-bit microprocessors. It is directly compatible with 8086 software and 8080/8085 hardware and periph-
erals.
231456–1
Figure 1. 8088 CPU Functional Block Diagram
231456–2
Figure 2. 8088 Pin Configuration