INTEL 186 EB/EC EVALUATION BOARD USER’S MANUAL

JP1 Memory - I/O Expansion Connector 2x30 Pin Molex* 39-51-6004 or Equivalent

VCC

1

LA0 Output

3

LA1 Output

5

LA2 Output

7

LA3 Output

9

LA4 Output

11

LA5 Output

13

LA6 Output

15

LA7 Output

17

VSS

19

LA8 Output

21

LA9 Output

23

LA10 Output

25

LA11 Output

27

LA12 Output

29

LA13 Output

31

LA14 Output

33

LA15 Output

35

VSS

37

LA16

39

LA17

41

LA18

43

LA19

45

RD#

47

WR#

49

BHE#

51

RESOUT

53

DEN#

55

DT-R#

57

VSS

59

2 - VCC

4 - D0 Bidirectional

6 - D1 Bidirectional

8 - D2 Bidirectional

10 - D3 Bidirectional

12 - D4 Bidirectional

14 - D5 Bidirectional

16 - D6 Bidirectional

18 - D7 Bidirectional

20 - VSS

22 - D8 Bidirectional

24 - D9 Bidirectional

26 - D10 Bidirectional

28 - D11 Bidirectional

30 - D12 Bidirectional

32 - D13 Bidirectional

34 - D14 Bidirectional

36 - D15 Bidirectional

38 - VSS

40 - HLDA

42 - HOLD

44 - READY Input

46 - ALE

48 - LOCK#

50 - NMI

52 - GCS5#

54 - +12 VDC

56 - +5 VDC

58 - CLKOUT

60 - VSS

Figure 3-8. CPU Bus Expansion (EB and EC)

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Intel 80C188EC, 80L188EC, 80L186EB, 80L186EC, 80C186EB, 80C188EB, 80L188EB, 80C186EC user manual CPU Bus Expansion EB and EC

80L188EB, 80C188EC, 80C188EB, 80L186EB, 80C186EB specifications

The Intel 80L188EC, 80C186EC, 80L186EC, 80C186EB, and 80L186EB microprocessors represent a significant evolution in Intel's 16-bit architecture, serving various applications in embedded systems and computing during the late 1980s and early 1990s. These microprocessors are designed to offer a blend of performance, efficiency, and versatility, making them suitable for a range of environments, including industrial control, telecommunications, and personal computing.

The Intel 80L188EC is a member of the 186 family, notable for its low-power consumption and integrated support for a range of peripheral devices. It operates at clock speeds of up to 10 MHz and features a 16-bit architecture, providing a balance of processing power and energy efficiency. The 80C186EC, on the other hand, is a more advanced version, offering enhanced performance metrics with faster clock speeds and improved processing capabilities, making it ideal for applications that require more computational power.

The 80L186EC shares similarities with the 80L188EC but is enhanced further for various low-power applications, especially where battery life is crucial. With a maximum clock speed of 16 MHz, it excels in scenarios demanding energy-efficient processing without sacrificing performance.

In contrast, the 80C186EB and 80L186EB are optimized versions that bring additional features to the table. The 80C186EB operates at higher clock speeds, coupled with an extended instruction set, enabling it to handle more complex tasks and run sophisticated software. These enhancements allow it to serve well in environments that require reliable performance under load, such as data acquisition systems or advanced control systems.

The 80L186EB is tailored for specific low-power scenarios, integrating Intel's sophisticated low-power technologies without compromising on speed. Utilizing advanced process technologies, these chips benefit from reduced heat output and extended operating life, a significant advantage in embedded applications.

Overall, these microprocessors showcase Intel's commitment to innovation in 16-bit processing, marked by their varying capabilities and power profiles tailored to meet the demands of diverse applications, from industrial systems to consumer electronics. Their legacy continues to influence subsequent generations of microprocessor designs, emphasizing performance, energy efficiency, and versatile applications in computing technology. As such, the Intel 80C186 and 80L188 families play a crucial role in understanding the evolution of microprocessor technology.