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8XC198
COMMERCIAL EXPRESS CHMOS MICROCONTROLLER
8 Kbytes of OTPROM
Y 8 Kbytes of On-Chip OTPROM or ROM
Y 232 Byte Register File
Y Register-to-Register Architecture
Y 28 Interrupt Sources 16 Vectors
Y 1 75 ms 16 x 16 Multiply (16 MHz)
Y 3 0 ms 32 16 Divide (16 MHz)
Y Powerdown and Idle Modes
Y 16-Bit Watchdog Timer
Y 8-Bit External Bus
Y 16 MHz Standard
Y Full Duplex Serial Port
Y High Speed I O Subsystem
Y 16-Bit Timer
Y 16-Bit Counter
Y Pulse-Width-Modulated Output
Y Four 16-Bit Software Timers
Y 10-Bit A D Converter with Sample Hold
Y Extended Temperature Available
The 8XC198 family offers low-cost entry into Intel’s powerful MCS -96 16-bit microcontroller architecture
Intel’s CHMOS process provides a high performance processor along with low power consumption To further
reduce power requirements the processor can be placed into Idle or Powerdown Mode
The 8XC198 is the 8-bit bus version of the 8XC196KB The prefixes mean 80 (ROMless) 83 (ROM) 87 (OTP)
One Time Programmable The ROM and OTP are available in 8 Kbytes
Bit byte word and some 32-bit operations are available on the 8XC198 With a 16 MHz oscillator a 16-bit
addition takes 0 50 ms and the instruction times average 0 37 ms to 1 1 ms in typical applications
Four high-speed capture inputs are provided to record times when events occur Six high-speed outputs are
available for pulse or waveform generation The high-speed output can also generate four software timers or
start an A D conversion Events can be based on the timer or counter Also provided on-chip are an A D
converter serial port watchdog timer and a pulse-width-modulated output signal
With the commercial (standard) temperature option operational characteristics are guaranteed over the tem-
perature range of 0 C to a70 C Wth the extended temperature range option operational characteristics are
guaranteed over the temperature range of b40 C to a85 C
MCS -96 is a registered trademark of Intel Corporation
Other brands and names are the property of their respective owners
Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or
copyright for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products Intel retains the right to make
changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
COPYRIGHT INTEL CORPORATION 1995
October 1992
Order Number 272034-003

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8XC198
Figure 1 87C198 Block Diagram
272034 – 1
EXTERNAL MEMORY OR I O
INTERNAL ROM EPROM OR
EXTERNAL MEMORY
RESERVED
UPPER 8 INTERRUPT VECTORS
ROM OTP SECURITY KEY
RESERVED
CHIP CONFIGURATION BYTE
RESERVED
LOWER 8 INTERRUPT VECTORS
PLUS 2 SPECIAL INTERRUPTS
PORT 3 AND PORT 4
EXTERNAL MEMORY OR I O
INTERNAL DATA MEMORY - REGISTER FILE
(STACK POINTER RAM AND SFRS)
EXTERNAL PROGRAM CODE MEMORY
0FFFFH
4000H
2080H
2040H
2030H
2020H
2019H
2018H
2014H
2000H
1FFEH
0100H
0000H
272034 – 7
Figure 3 Chip Configuration (2018H)
Figure 2 Memory Map
WARNING
Reserved memory locations must not be written or read The contents and or function of these locations may change with
future revisions of the device Therefore a program that relies on one or more of these locations may not function properly
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8XC198
PACKAGING
The 8XC198 is available in a 52-pin PLCC package and an 80-pin QFP package Contact your local sales
office to determine the exact ordering code for the part desired
Package Designators
N e 52-pin PLCC
S e 80-pin QFP
Thermal Characteristics
Package Type
PLCC
ija
40 C W
QFP
70 C W
ijc
4C W
All thermal impedance data is approximate for static air conditions at 1W of power dissipation Values will
change depending on operating conditions and application See the Intel Packaging Handbook (Order Number
240800) for a description of Intel’s thermal impedance test methodology
272034 – 2
Figure 4 52-Pin PLCC Package
NOTE
The above pinout diagram applies to the OTP (87C198) device The OTP device uses all of the programming pins shown
above The ROM (83C198) device only uses programming pins AINC PALE PMODE n and PROG The ROMless (80C198)
doesn’t use any of the programming pins
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