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參數(shù)資料
| 型號： | IMQ82C55AZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS Programmable Peripheral Interface |
| 中文描述： | 24 I/O, PIA-GENERAL PURPOSE, PQFP44 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-022AB, MQFP-44 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大小： | 502K |
| 代理商： | IMQ82C55AZ |
18
FN6140.1
June 28, 2005
AC Electrical Specifications
V
CC
= +5V
±
10%, GND = 0V; T
A
= Operating Temperature Range
SYMBOL
PARAMETER
TEST
CONDITIONS
82C55A
UNITS
MIN
MAX
READ TIMING
(1) tAR
Address Stable Before RD
0
-
ns
(2) tRA
Address Stable After RD
0
-
ns
(3) tRR
RD Pulse Width
150
-
ns
(4) tRD
Data Valid From RD
1
-
120
ns
(5) tDF
Data Float After RD
2
10
75
ns
(6) tRV
Time Between RDs and/or WRs
300
-
ns
WRITE TIMING
(7) tAW
Address Stable Before WR
0
-
ns
(8) tWA
Address Stable After WR
20
-
ns
(9) tWW
WR Pulse Width
100
-
ns
(10) tDW
Data Valid to WR High
100
-
ns
(11) tWD
Data Valid After WR High
30
-
ns
OTHER TIMING
(12) tWB
WR = 1 to Output
1
-
350
ns
(13) tIR
Peripheral Data Before RD
0
-
ns
(14) tHR
Peripheral Data After RD
0
-
ns
(15) tAK
ACK Pulse Width
200
-
ns
(16) tST
STB Pulse Width
100
-
ns
(17) tPS
Peripheral Data Before STB High
20
-
ns
(18) tPH
Peripheral Data After STB High
50
-
ns
(19) tAD
ACK = 0 to Output
1
-
175
ns
(20) tKD
ACK = 1 to Output Float
2
20
250
ns
(21) tWOB
WR = 1 to OBF = 0
1
-
150
ns
(22) tAOB
ACK = 0 to OBF = 1
1
-
150
ns
(23) tSIB
STB = 0 to IBF = 1
1
-
150
ns
(24) tRIB
RD = 1 to IBF = 0
1
-
150
ns
(25) tRIT
RD = 0 to INTR = 0
1
-
200
ns
(26) tSIT
STB = 1 to INTR = 1
1
-
150
ns
(27) tAIT
ACK = 1 to INTR = 1
1
-
150
ns
(28) tWIT
WR = 0 to INTR = 0
1
-
200
ns
(29) tRES
Reset Pulse Width
1, (Note)
500
-
ns
NOTE: Period of initial Reset pulse after power-on must be at least 50
μ
sec. Subsequent Reset pulses may be 500ns minimum.
MS82C55A, MQ82C55A
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