82C37A
o
o
AC Electrical Specifications
V
= +5.0V ±10%, GND = 0V, T = 0 C to +70 C (C82C37A),
A
CC
o
o
T = -40 C to +85 C (I82C37A),
A
o
o
T = -55 C to +125 C (M82C37A)
A
82C37A-5
82C37A
82C37A-12
SYMBOL
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
DMA (MASTER) MODE
(1)TAEL
(2)TAET
(3)TAFAB
(4)TAFC
(5)TAFDB
AEN HIGH from CLK LOW (S1) Delay
Time
-
-
-
-
-
175
130
90
-
-
-
-
-
105
80
-
-
-
-
-
50
50
55
50
90
ns
ns
ns
ns
ns
AEN LOW from CLK HIGH (SI) Delay
Time
ADR Active to Float Delay from CLK
HIGH
55
READ or WRITE Float Delay from
CLK HIGH
120
170
75
DB Active to Float Delay from CLK
HIGH
135
(6)TAHR
(7)TAHS
(8)TAHW
(9)TAK
ADR from READ HIGH Hold Time
DB from ADSTB LOW Hold Time
ADR from WRITE HIGH Hold Time
TCY-100
TCL-18
TCY-65
-
-
TCY-75
TCL-18
TCY-65
-
-
TCY-65
TCL-18
TCY-50
-
-
-
ns
ns
ns
ns
-
-
-
-
-
DACK Valid from CLK LOW
Delay Time
170
105
69
EOP HIGH from CLK HIGH
Delay Time
-
-
170
100
-
-
105
60
-
-
90
35
ns
ns
EOP LOW from CLK HIGH
Delay Time
(10)TASM
(11)TASS
(12)TCH
(13)TCL
ADR Stable from CLK HIGH
DB to ADSTB LOW Setup Time
CLK HIGH Time (Transitions 10ns)
CLK LOW Time (Transitions 10ns)
CLK Cycle Time
-
TCH-20
70
110
-
TCH-20
55
60
-
50
ns
ns
ns
ns
ns
ns
-
-
TCH-20
-
-
-
30
30
80
-
-
50
-
-
43
-
-
-
-
(14)TCY
(15)TDCL
200
-
125
-
CLK HIGH to READ or WRITE LOW
Delay
190
130
120
(16)TDCTR
(17)TDCTW
(18)TDQ
READ HIGH from CLK HIGH (S4)
Delay Time
-
-
-
190
130
120
-
-
-
115
80
-
-
-
80
70
30
ns
ns
ns
WRITE HIGH from CLK HIGH (S4)
Delay Time
HRQ Valid from CLK HIGH
Delay Time
75
(19)TEPH
(20)TEPS
EOP Hold Time from CLK LOW (S2)
EOP LOW to CLK LOW Setup Time
90
40
-
-
90
25
-
-
50
0
-
-
ns
ns
4-206
HARRIS [ HARRIS CORPORATION ]
