IA186ES/IA188ES
Data Sheet
8-Bit/16-Bit Microcontrollers
November 15, 2011
TABLE OF CONTENTS
List of Figures..................................................................................................................................9
List of Tables .................................................................................................................................10
Conventions ...................................................................................................................................13
Acronyms and Abbreviations ........................................................................................................14
1.
Introduction...........................................................................................................................15
1.1 General Description.....................................................................................................15
1.2 Features .......................................................................................................................15
Packaging, Pin Descriptions, and Physical Dimensions.......................................................16
2.1 Packages and Pinouts ..................................................................................................16
2.1.1 IA186ES TQFP Package ................................................................................17
2.1.2 IA188ES TQFP Package ................................................................................20
2.1.3 TQFP Physical Dimensions............................................................................23
2.1.4 IA186ES PQFP Package.................................................................................24
2.1.5 IA188ES PQFP Package.................................................................................27
2.1.6 PQFP Physical Dimensions............................................................................30
2.2 Pin Descriptions ..........................................................................................................31
2.2.1 a19/pio9, a18/pio8, a17/pio7, a16–a0—Address Bus (synchronous
outputs with tristate) .......................................................................................31
2.2.2 ad15–ad8 (IA186ES)—Address/Data Bus (level-sensitive
2.
synchronous inouts with tristate)....................................................................31
2.2.3 ao15–ao8 (IA188ES)—Address Bus (level-sensitive synchronous
outputs with tristate) .......................................................................................31
2.2.4 ad7–ad0—Address/Data Bus (level-sensitive synchronous inouts with
tristate)............................................................................................................31
2.2.5 ale—Address Latch Enable (synchronous output) .........................................32
2.2.6 ardy—Asynchronous Ready (level-sensitive asynchronous input)................32
2.2.7 bhe_n/aden_n (IA186ES only)—Bus High Enable (synchronous
output with tristate)/Address Enable (input with internal pullup)..................32
2.2.8 clkouta—Clock Output A (synchronous output)............................................33
2.2.9 clkoutb—Clock Output B (synchronous output)............................................33
2.2.10 cts0_n/enrx0_n/pio21—Clear-to-Send 0/Enable-Receive-Request 0
(both are asynchronous inputs).......................................................................33
2.2.11 den_n/ds_n/pio5—Data Enable /Data Strobe (both are synchronous
outputs with tristate) .......................................................................................34
2.2.12 drq0/int5/pio12—DMA Request 0 (synchronous level-sensitive
input)/Maskable Interrupt Request 5 (asynchronous edge-triggered
input)...............................................................................................................34
2.2.13 drq1/int6/pio13—DMA Request 1 (synchronous level-sensitive
input)/Maskable Interrupt Request 6 (asynchronous edge-triggered
input)...............................................................................................................34
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