3-3
TM
Features
• Maximum Input Clock Maximum Frequency Options
At V
DD
= 5V
- CDP1802A, AC . . . . . . . . . . . . . . . . . . . . . . . . . 3.2MHz
- CDP1802BC . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0MHz
• Maximum Input Clock Maximum Frequency Options
At V
DD
= 10V
- CDP1802A, AC . . . . . . . . . . . . . . . . . . . . . . . . . 6.4MHz
• Minimum Instruction Fetch
-
Execute Times
At V
DD
= 5V
- CDP1802A, AC . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0
µ
s
- CDP1802BC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2
µ
s
• Any Combination of Standard RAM and ROM Up to
65,536 Bytes
• 8
-
Bit Parallel Organization With Bidirectional Data Bus
and Multiplexed Address Bus
• 16 x 16 Matrix of Registers for Use as Multiple
Program Counters, Data Pointers, or Data Registers
• On
-
Chip DMA, Interrupt, and Flag Inputs
• Programmable Single
-
Bit Output Port
• 91 Easy
-
to
-
Use Instructions
Description
The CDP1802 family of CMOS microprocessors are 8-bit
register oriented central processing units (CPUs) designed
for use as general purpose computing or control elements in
a wide range of stored program systems or products.
The CDP1802 types include all of the circuits required for
fetching, interpreting, and executing instructions which have
been stored in standard types of memories. Extensive
input/output (I/O) control features are also provided to facili-
tate system design.
The 1800 series architecture is designed with emphasis on
the total microcomputer system as an integral entity so that
systems having maximum flexibility and minimum cost can
be realized. The 1800 series CPU also provides a synchro-
nous interface to memories and external controllers for I/O
devices, and minimizes the cost of interface controllers. Fur-
ther, the I/O interface is capable of supporting devices oper-
ating in polled, interrupt driven, or direct memory access
modes.
The CDP1802A and CDP1802AC have a maximum input
clock frequency of 3.2MHz at V
DD
= 5V. The CDP1802A and
CDP1802AC are functionally identical. They differ in that the
CDP1802A has a recommended operating voltage range of
4V to 10.5V, and the CDP1802AC a recommended operat-
ing voltage range of 4V to 6.5V.
The CDP1802BC is a higher speed version of the
CDP1802AC, having a maximum input clock frequency of
5.0MHz at V
DD
= 5V, and a recommended operating voltage
range of 4V to 6.5V.
Ordering Information
PART NUMBER
TEMPERATURE RANGE
PACKAGE
PKG. NO.
5V - 3.2MHz
5V - 5MHz
CDP1802ACE
CDP1802BCE
-40
o
C to +85
o
C
PDIP
E40.6
CDP1802ACEX
CDP1802BCEX
Burn-In
E40.6
CDP1802ACQ
CDP1802BCQ
-40
o
C to +85
o
C
PLCC
N44.65
CDP1802ACD
-
-40
o
C to +85
o
C
SBDIP
D40.6
CDP1802ACDX
CDP1802BCDX
Burn-In
D40.6
March 1997
File Number
1305.2
CDP1802A, CDP1802AC,
CDP1802BC
CMOS 8-Bit Microprocessors
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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