Figure B-4 C196NU 100-lead QFP Package

Intel Microcontroller, 80C196NU, 8XC196NP manual Figure B-4 C196NU 100-lead QFP Package

Figure B-4. 80C196NU 100-lead QFP Package

Microcontroller, 80C196NU, 8XC196NP specifications

Models: Microcontroller 80C196NU 8XC196NP

x8XC196NU

View of component as mounted on PC board

READY

SIGNAL DESCRIPTIONS

AD0 1

NC 2 RESET# 3 NMI 4 NC 5 A0 6

A1 7

VCC 8

VSS 9 A2 10

A3 11

A4 12

A5 13

A6 14

A7 15

VCC 16

VSS 17 PLLEN1 18

P3.0 / CS0# 19

P3.1 / CS1# 20

P3.2 / CS2# 21

P3.3 / CS3# 22

VSS 23 P3.4 / CS4# 24

P3.5 / CS5# 25

P3.6 / EXTINT2 26 NC 27 P3.7 / EXTINT3 28

P1.0 / EPA0 29 VCC 30

AD1	AD2	AD3	AD4	AD5 AD6		AD7	V		AD8	V		AD9	AD10	AD11	AD12	AD13	AD14
								CC			SS

100	99	98	97	96	95	94	93		92	91		90	89	88	87	86	85

31	32	33	34	35	36		37	38		39	40	41	42	43	44		45		46


/P1.1EPA1	/P1.2EPA2	/P1.3EPA3	T1CLK/P1.4	/P1.5T1DIR	V		T2CLK/P1.6	V		/P1.7T2DIR	/P4.0PWM0	/P4.1PWM1	/P4.2PWM2	P4.3	V		V		P2.0/ TXD
						CC			SS							CC		SS

AD15	EPORT.0	EPORT.1
	A16/	A17/ V
				CC

84	83	82	81

VSS

A18 / EPORT.2

A19 / EPORT.3

WR# / WRL#

RD#

BHE# / WRH#

ALE

INST

RPD

ONCE PLLEN2

VCC

VSS

A10

A11

A12

A13

A14

A15

VSS

XTAL1

XTAL2

VSS

P2.7 / CLKOUT

VCC

P2.6 / HLDA# P2.5 / HOLD#

A2824-02

B-5

The Intel 8XC196NP and 80C196NU microcontrollers are part of Intel's renowned 16-bit microcontroller series that gained popularity in the 1980s and 1990s for embedded systems applications. Designed for a variety of applications, these microcontrollers are characterized by their robust performance, versatility, and industry-standard architecture.

The 8XC196NP features an enhanced instruction set with over 100 instructions, allowing for efficient code execution. It operates at clock speeds up to 16 MHz, which contributes to improved performance in time-sensitive applications. The microcontroller is equipped with a 16-bit data bus, enabling more efficient data handling compared to its 8-bit predecessors, thus accommodating complex algorithms and large data sets.

In terms of memory architecture, the 8XC196NP supports an addressable memory space of up to 64 KB of program memory and 64 KB of data memory. This configuration provides sufficient space for large applications while ensuring fast data access. The microcontroller includes integrated features such as timers, serial I/O capabilities, and interrupt processing, which enhance its functionality for real-time applications and control mechanisms.

The 80C196NU, on the other hand, is designed for lower power operation, making it suitable for battery-powered devices. This microcontroller maintains similar features to the 8XC196NP while offering advancements that support low-power consumption. The 80C196NU can also function in a range of temperature environments, making it adaptable for industrial applications.

Both the 8XC196NP and 80C196NU support external memory interfacing, allowing designers to expand the system's capability by connecting additional ROM and RAM. This flexibility makes them appealing for developing complex systems, such as motor controls, industrial automation, and consumer electronics.

Another standout feature of these microcontrollers is their built-in debugging capabilities. Intel provided hardware and software tools that enabled developers to test and troubleshoot their applications effectively, reducing the development time and increasing reliability.

Overall, the Intel 8XC196NP and 80C196NU microcontrollers stand out for their dependability, versatility, and performance, contributing significantly to the evolution of embedded system design. Their legacy continues to influence modern microcontroller technology, ensuring their relevance in a wide array of applications today.

P2.1 / RXD

P2.2 / EXTINT0

P2.3 / BREQ#

P2.4 / EXTINT1