IP82C55AZ Intersil, IP82C55AZ Datasheet - Page 13

• Manufacturer Part Number: IP82C55AZ
• Description: IC I/O EXPANDER 24B 40DIP
• Manufacturer: Intersil

Specifications of IP82C55AZ

• Interface: Programmable
• Number Of I /o: 24
• Interrupt Output: No
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Chip Configuration: 8 Bit
• Bus Frequency: 8MHz
• No. Of I/o's: 24
• Supply Voltage Range: 4.5V To 5.5V
• Digital Ic Case Style: DIP
• No. Of Pins: 40
• Frequency Max: 8MHz
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Clock: -

MODE 2 AND MODE 0 (INPUT)
MODE 2 AND MODE 1 (OUTPUT)
CONTROL WORD
CONTROL WORD
D7
D7
1
1
D6 D5 D4 D3 D2 D1 D0
D6 D5 D4 D3 D2 D1 D0
1
1
PC2-PC0
1 = INPUT
0 = OUTPUT
RD
WR
RD
WR
0
1
1
0
1/0
13
PC2-PC0
PB7-PB0
PA7-PA0
PB7-PB0
PA7-PA0
PC3
PC7
PC6
PC4
PC5
PC3
PC7
PC6
PC4
PC5
PC1
PC2
PC0
FIGURE 14. MODE 2 COMBINATIONS
3
8
8
8
8
INTRA
OBFA
ACKA
STBA
IBFA
INTRA
OBFA
ACKA
STBA
IBFA
OBFB
ACKB
INTRB
I/O
82C55A
MODE 2 AND MODE 0 (OUTPUT)
MODE 2 AND MODE 1 (INPUT)
CONTROL WORD
CONTROL WORD
D7
D7
1
1
D6 D5 D4 D3 D2 D1 D0
D6 D5 D4 D3 D2 D1 D0
1
1
PC2-PC0
1 = INPUT
0 = OUTPUT
0
RD
WR
1
RD
WR
0
1
1/0
PB7, PB0
PC2-PC0
PA7-PA0
PB7-PB0
PA7-PA0
PC3
PC7
PC6
PC4
PC5
PC3
PC7
PC6
PC4
PC5
PC2
PC1
PC0
November 16, 2006
3
8
8
8
8
FN2969.10
INTRA
OBFA
ACKA
STBA
IBFA
INTRA
OBFA
ACKA
STBA
IBFA
STBB
IBFB
INTRB
I/O