ia186em Innovasic Semiconductor Inc., ia186em Datasheet - Page 3

• Manufacturer Part Number: ia186em
• Description: 8-bit/16-bit Microcontrollers
• Manufacturer: Innovasic Semiconductor Inc.

IA186EM/IA188EM
8-Bit/16-Bit Microcontrollers
List of Figures ..................................................................................................................................8
List of Tables ...................................................................................................................................9
Conventions ...................................................................................................................................12
Acronyms and Abbreviations ........................................................................................................13
1.
2.
Introduction ...........................................................................................................................14
Packaging , Pin Descriptions, and Physical Dimensions ......................................................15
1.1 General Description .....................................................................................................14
1.2 Features .......................................................................................................................14
2.1 Packages and Pinouts ..................................................................................................15
2.2 Pin Descriptions ..........................................................................................................30
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.10 den_n/pio5—Data Enable Strobe (synchronous output with tristate) ............32
2.2.11 drq1/pio12–drq0/pio13—DMA Requests (synchronous level-sensitive
2.2.12 dt/r_n/pio4—Data Transmit or Receive (synchronous output with
2.2.13 gnd—Ground ..................................................................................................32
2.2.14 hlda—Bus Hold Acknowledge (synchronous output) ....................................33
2.2.15 hold—Bus Hold Request (synchronous level-sensitive input) .......................33
2.2.16 int0—Maskable Interrupt Request 0 (asynchronous input) ............................33
2.2.17 int1/select_n—Maskable Interrupt Request 1/Slave Select (both are
IA186EM TQFP Package ...............................................................................16
IA188EM TQFP Package ...............................................................................19
TQFP Physical Dimensions ............................................................................22
IA186EM PQFP Package ...............................................................................23
IA188EM PQFP Package ...............................................................................26
PQFP Physical Dimensions ............................................................................29
a19/pio9, a18/pio8, a17/pio7, a16–a0—Address Bus (synchronous
outputs with tristate) .......................................................................................30
ad15–ad8 (IA186EM)—Address/data bus (level-sensitive
synchronous inouts with tristate) ....................................................................30
ad7–ad0—Address/Data bus (level-sensitive synchronous inouts with
tristate) ............................................................................................................30
ao15–ao8 (IA188EM)—Address-only bus (level-sensitive
synchronous outputs with tristate) ..................................................................30
ale—Address Latch Enable (synchronous output) .........................................31
ardy—Asynchronous Ready (level-sensitive asynchronous input) ................31
bhe_n/aden_n (IA186EM)—Bus High Enable (synchronous output
with tristate)/Address Enable (input with internal pull-up) ............................31
clkouta—Clock Output A (synchronous output) ............................................32
clkoutb—Clock Output B (synchronous output) ............................................32
inputs) .............................................................................................................32
tristate) ............................................................................................................32
asynchronous inputs) ......................................................................................33
®
TABLE OF CONTENTS
UNCONTROLLED WHEN PRINTED OR COPIED
Page 3 of 145
IA211050831-16
December 24, 2008
http://www.Innovasic.com
Customer Support:
Data Sheet
1-888-824-4184