component
CLCQ82C55AZ
Public Made by Adomby adom
CHIPLON Interface - Specialized, QFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
clcq82c55az: CS, WR, RD active low per the Chiplon 82C55A MQFP top view p.2 (part-reviewer decision)
5 files changed
+32−24
README.md+3−3@@ -8,7 +8,7 @@ CLCQ82C55AZ from CHIPLON, in a QFP-44(10x10). Pinout and pin descriptions extrac | Pin | Name | Type | Function | |---|---|---|---|-| 1 | CS | input | Active-low chip select that enables the 82C55A onto the data bus for CPU communication. |+| 1 | ~{CS} | input | Active-low chip select that enables the 82C55A onto the data bus for CPU communication. | | 2 | GND | power_in | Ground; a 0.1µF decoupling capacitor between VCC and GND is recommended. | | 3 | A1 | input | Address input that together with RD and WR selects one of the three ports or the control word register. | | 4 | A0 | input | Address input that together with RD and WR selects one of the three ports or the control word register. |@@ -41,7 +41,7 @@ CLCQ82C55AZ from CHIPLON, in a QFP-44(10x10). Pinout and pin descriptions extrac | 31 | D1 | bidirectional | Data bus bit 1, bidirectional three-state pin connected to the system data bus. | | 32 | D0 | bidirectional | Data bus bit 0, bidirectional three-state pin connected to the system data bus. | | 33 | RESET | input | A high level clears the control register and sets all ports (A, B, C) to input mode with bus-hold circuits on. |-| 34 | WR | input | Active-low write control signal used by the CPU to load control words and data into the 82C55A. |+| 34 | ~{WR} | input | Active-low write control signal used by the CPU to load control words and data into the 82C55A. | | 35 | PA7 | bidirectional | Port A bit 7, input/output line with bus-hold high and bus-hold low circuits. | | 36 | PA6 | bidirectional | Port A bit 6, input/output line with bus-hold high and bus-hold low circuits. | | 37 | PA5 | bidirectional | Port A bit 5, input/output line with bus-hold high and bus-hold low circuits. |@@ -51,7 +51,7 @@ CLCQ82C55AZ from CHIPLON, in a QFP-44(10x10). Pinout and pin descriptions extrac | 41 | PA2 | bidirectional | Port A bit 2, input/output line with bus-hold high and bus-hold low circuits. | | 42 | PA1 | bidirectional | Port A bit 1, input/output line with bus-hold high and bus-hold low circuits. | | 43 | PA0 | bidirectional | Port A bit 0, input/output line with bus-hold high and bus-hold low circuits. |-| 44 | RD | input | Active-low read control signal used by the CPU to read status information or data via the data bus. |+| 44 | ~{RD} | input | Active-low read control signal used by the CPU to read status information or data via the data bus. | ## Key specifications
clcq82c55az.kicad_sym+3−3@@ -9,7 +9,7 @@ ) (symbol "CLCQ82C55AZ_1_1" (pin input line (at -17.78 25.40 0) (length 5.08)- (name "CS" (effects (font (size 1.27 1.27))))+ (name "~{CS}" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))) ) (pin power_in line (at -17.78 22.86 0) (length 5.08)@@ -97,7 +97,7 @@ (number "22" (effects (font (size 1.27 1.27)))) ) (pin input line (at 17.78 25.40 180) (length 5.08)- (name "RD" (effects (font (size 1.27 1.27))))+ (name "~{RD}" (effects (font (size 1.27 1.27)))) (number "44" (effects (font (size 1.27 1.27)))) ) (pin bidirectional line (at 17.78 22.86 180) (length 5.08)@@ -137,7 +137,7 @@ (number "35" (effects (font (size 1.27 1.27)))) ) (pin input line (at 17.78 0.00 180) (length 5.08)- (name "WR" (effects (font (size 1.27 1.27))))+ (name "~{WR}" (effects (font (size 1.27 1.27)))) (number "34" (effects (font (size 1.27 1.27)))) ) (pin input line (at 17.78 -2.54 180) (length 5.08)
clcq82c55az.lbr+18−9@@ -50,7 +50,7 @@ <layer number="98" name="Guide" color="6" fill="1" visible="yes" active="yes"/> </layers> <library>-<description></description>+<description>CHIPLON Interface - Specialized, QFP-44(10x10). Pinout cross-checked by two models against the datasheet</description> <packages> <package name="LQFP-44_10x10mm_P0.8mm"> <description>LQFP-44, 10 x 10 mm, 0.8 mm pitch</description>@@ -124,13 +124,14 @@ </packages> <symbols> <symbol name="CLCQ82C55AZ">+ <description>CHIPLON Interface - Specialized, QFP-44(10x10). Pinout cross-checked by two models against the datasheet</description> <wire x1="-12.7" y1="27.94" x2="12.7" y2="27.94" width="0.254" layer="94"/> <wire x1="12.7" y1="27.94" x2="12.7" y2="-30.48" width="0.254" layer="94"/> <wire x1="12.7" y1="-30.48" x2="-12.7" y2="-30.48" width="0.254" layer="94"/> <wire x1="-12.7" y1="-30.48" x2="-12.7" y2="27.94" width="0.254" layer="94"/> <text x="0.0000" y="30.4800" size="1.27" layer="95" align="center">>NAME</text> <text x="0.0000" y="-33.0200" size="1.27" layer="96" align="center">>VALUE</text>- <pin name="CS" x="-17.78" y="25.4" length="middle" direction="in"/>+ <pin name="!CS!" x="-17.78" y="25.4" length="middle" direction="in"/> <pin name="GND" x="-17.78" y="22.86" length="middle" direction="pwr"/> <pin name="A1" x="-17.78" y="20.32" length="middle" direction="in"/> <pin name="A0" x="-17.78" y="17.78" length="middle" direction="in"/>@@ -152,7 +153,7 @@ <pin name="PB5" x="-17.78" y="-22.86" length="middle" direction="io"/> <pin name="PB6" x="-17.78" y="-25.4" length="middle" direction="io"/> <pin name="NC@3" x="-17.78" y="-27.94" length="middle" direction="nc"/>- <pin name="RD" x="17.78" y="25.4" length="middle" direction="in" rot="R180"/>+ <pin name="!RD!" x="17.78" y="25.4" length="middle" direction="in" rot="R180"/> <pin name="PA0" x="17.78" y="22.86" length="middle" direction="io" rot="R180"/> <pin name="PA1" x="17.78" y="20.32" length="middle" direction="io" rot="R180"/> <pin name="PA2" x="17.78" y="17.78" length="middle" direction="io" rot="R180"/>@@ -162,7 +163,7 @@ <pin name="PA5" x="17.78" y="7.62" length="middle" direction="io" rot="R180"/> <pin name="PA6" x="17.78" y="5.08" length="middle" direction="io" rot="R180"/> <pin name="PA7" x="17.78" y="2.54" length="middle" direction="io" rot="R180"/>- <pin name="WR" x="17.78" y="0" length="middle" direction="in" rot="R180"/>+ <pin name="!WR!" x="17.78" y="0" length="middle" direction="in" rot="R180"/> <pin name="RESET" x="17.78" y="-2.54" length="middle" direction="in" rot="R180"/> <pin name="D0" x="17.78" y="-5.08" length="middle" direction="io" rot="R180"/> <pin name="D1" x="17.78" y="-7.62" length="middle" direction="io" rot="R180"/>@@ -178,14 +179,14 @@ </symbols> <devicesets> <deviceset name="CLCQ82C55AZ" prefix="U">- <description></description>+ <description>CHIPLON Interface - Specialized, QFP-44(10x10). Pinout cross-checked by two models against the datasheet</description> <gates> <gate name="G$1" symbol="CLCQ82C55AZ" x="0" y="0"/> </gates> <devices> <device name="" package="LQFP-44_10x10mm_P0.8mm"> <connects>- <connect gate="G$1" pin="CS" pad="1"/>+ <connect gate="G$1" pin="!CS!" pad="1"/> <connect gate="G$1" pin="GND" pad="2"/> <connect gate="G$1" pin="A1" pad="3"/> <connect gate="G$1" pin="A0" pad="4"/>@@ -207,7 +208,7 @@ <connect gate="G$1" pin="PB5" pad="20"/> <connect gate="G$1" pin="PB6" pad="21"/> <connect gate="G$1" pin="NC@3" pad="22"/>- <connect gate="G$1" pin="RD" pad="44"/>+ <connect gate="G$1" pin="!RD!" pad="44"/> <connect gate="G$1" pin="PA0" pad="43"/> <connect gate="G$1" pin="PA1" pad="42"/> <connect gate="G$1" pin="PA2" pad="41"/>@@ -217,7 +218,7 @@ <connect gate="G$1" pin="PA5" pad="37"/> <connect gate="G$1" pin="PA6" pad="36"/> <connect gate="G$1" pin="PA7" pad="35"/>- <connect gate="G$1" pin="WR" pad="34"/>+ <connect gate="G$1" pin="!WR!" pad="34"/> <connect gate="G$1" pin="RESET" pad="33"/> <connect gate="G$1" pin="D0" pad="32"/> <connect gate="G$1" pin="D1" pad="31"/>@@ -230,7 +231,15 @@ <connect gate="G$1" pin="VCC" pad="24"/> <connect gate="G$1" pin="PB7" pad="23"/> </connects>- <technologies><technology name=""/></technologies>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="CLCQ82C55AZ" constant="no"/>+ <attribute name="MANUFACTURER" value="CHIPLON" constant="no"/>+ <attribute name="DATASHEET" value="https://datasheet.lcsc.com/datasheet/pdf/33c3d1dbd9c3567bd9a98be9e3eaa5c3.pdf" constant="no"/>+ <attribute name="ADOM_WIKI" value="https://wiki.adom.inc/adom/clcq82c55az" constant="no"/>+ <attribute name="LCSC_PN" value="C7433371" constant="no"/>+ </technology>+ </technologies> </device> </devices> </deviceset>
package.json+3−3@@ -66,7 +66,7 @@ "pins": [ { "number": "1",- "name": "CS",+ "name": "~{CS}", "type": "input", "description": "Active-low chip select that enables the 82C55A onto the data bus for CPU communication." },@@ -264,7 +264,7 @@ }, { "number": "34",- "name": "WR",+ "name": "~{WR}", "type": "input", "description": "Active-low write control signal used by the CPU to load control words and data into the 82C55A." },@@ -324,7 +324,7 @@ }, { "number": "44",- "name": "RD",+ "name": "~{RD}", "type": "input", "description": "Active-low read control signal used by the CPU to read status information or data via the data bus." }
page.json+5−6@@ -48,7 +48,7 @@ "pins": [ { "number": "1",- "name": "CS",+ "name": "~{CS}", "type": "input", "description": "Active-low chip select that enables the 82C55A onto the data bus for CPU communication." },@@ -246,7 +246,7 @@ }, { "number": "34",- "name": "WR",+ "name": "~{WR}", "type": "input", "description": "Active-low write control signal used by the CPU to load control words and data into the 82C55A." },@@ -306,7 +306,7 @@ }, { "number": "44",- "name": "RD",+ "name": "~{RD}", "type": "input", "description": "Active-low read control signal used by the CPU to read status information or data via the data bus." }@@ -1002,8 +1002,7 @@ ], "discovery_pitch": "CLCQ82C55AZ (CHIPLON) component page: datasheet pinout, KiCad symbol, footprint and 3D.", "author": {- "name": "Ray",- "email": "[email protected]"+ "name": "Ray" }, "dependencies": {}, "hero": {@@ -1029,4 +1028,4 @@ "visibility": { "public": true }-}+}