CS82C55A Intersil, CS82C55A Datasheet - Page 19

• Manufacturer Part Number: CS82C55A
• Description: IC I/O EXPANDER 24B 44PLCC
• Manufacturer: Intersil

Specifications of CS82C55A

• Interface: Programmable
• Number Of I /o: 24
• Interrupt Output: No
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-PLCC
• 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: LCC
• No. Of Pins: 44
• Msl: MSL 3 - 168 Hours
• Filter Terminals: SMD
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Frequency - Clock: -

AC Electrical Specifications
NOTE: Period of initial Reset pulse after power-on must be at least 50μsec. Subsequent Reset pulses may be 500ns minimum.
READ TIMING
(1) tAR
(2) tRA
(3) tRR
(4) tRD
(5) tDF
(6) tRV
WRITE TIMING
(7) tAW
(8) tWA
(9) tWW
(10) tDW
(11) tWD
OTHER TIMING
(12) tWB
(13) tIR
(14) tHR
(15) tAK
(16) tST
(17) tPS
(18) tPH
(19) tAD
(20) tKD
(21) tWOB
(22) tAOB
(23) tSIB
(24) tRIB
(25) tRIT
(26) tSIT
(27) tAIT
(28) tWIT
(29) tRES
SYMBOL
Address Stable Before RD
Address Stable After RD
RD Pulse Width
Data Valid From RD
Data Float After RD
Time Between RDs and/or WRs
Address Stable Before WR
Address Stable After WR
WR Pulse Width
Data Valid to WR High
Data Valid After WR High
WR = 1 to Output
Peripheral Data Before RD
Peripheral Data After RD
ACK Pulse Width
STB Pulse Width
Peripheral Data Before STB High
Peripheral Data After STB High
ACK = 0 to Output
ACK = 1 to Output Float
WR = 1 to OBF = 0
ACK = 0 to OBF = 1
STB = 0 to IBF = 1
RD = 1 to IBF = 0
RD = 0 to INTR = 0
STB = 1 to INTR = 1
ACK = 1 to INTR = 1
WR = 0 to INTR = 0
Reset Pulse Width
19
PARAMETER
V
CC
= +5V± 10%, GND = 0V; T
82C55A
MIN
250
300
100
100
200
100
500
10
20
30
20
50
20
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
82C55A-5
A
= Operating Temperature Range
MAX
200
350
175
250
150
150
150
150
200
150
150
200
75
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MIN
150
300
100
100
200
100
500
10
20
30
20
50
20
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
82C55A
MAX
120
350
175
250
150
150
150
150
200
150
150
200
75
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CONDITIONS
November 16, 2006
1, (Note)
TEST
1
2
1
1
2
1
1
1
1
1
1
1
1
FN2969.10