CQ82C55A96 Intersil, CQ82C55A96 Datasheet - Page 17

• Manufacturer Part Number: CQ82C55A96
• Description: IC I/O EXPANDER 24B 44MQFP
• Manufacturer: Intersil
• Series: -r

Specifications of CQ82C55A96

• Interface: Programmable
• Number Of I /o: 24
• Interrupt Output: No
• Frequency - Clock: -
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-QFP
• Includes: -
• Lead Free Status / Rohs Status: Contains lead / RoHS non-compliant

INTERRUPT
REQUEST
FIGURE 23. BASIC FLOPPY DISC INTERFACE
(OUTPUT)
MODE 2
MODE 0
82C55A
PC3
PC4
PC5
PC7
PC6
PC2
PC1
PC0
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
17
D0
D1
D2
D3
D4
D5
D6
D7
DATA STB
ACK (IN)
DATA READY
ACK (OUT)
TRACK “0” SENSOR
SYNC READY
INDEX
ENGAGE HEAD
FORWARD/REV.
READ ENABLE
WRITE ENABLE
DISC SELECT
ENABLE CRC
TEST
BUSY LT
CONTROLLER
FLOPPY DISK
AND DRIVE
82C55A
INTERRUPT
REQUEST
FIGURE 24. MACHINE TOOL CONTROLLER INTERFACE
(OUTPUT)
MODE 1
MODE 0
MODE 0
(INPUT)
82C55A
(INPUT)
PC3
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PC4
PC5
PC6
PC0
PC1
PC2
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
R0
R1
R2
R3
R4
R5
R6
R7
STB
ACK
STOP/GO
START/STOP
LIMIT SENSOR (H/V)
OUT OF FLUID
CHANGE TOOL
LEFT/RIGHT
UP/DOWN
HOR. STEP STROBE
VERT. STEP STROBE
SLEW/STEP
FLUID ENABLE
EMERGENCY STOP
B LEVEL
READER
MACHINE TOOL
PAPER
TAPE
November 16, 2006
FN2969.10