82C37A_06 Datasheet, PDF (18/24 Pages) Intersil Corporation – CMOS High Performance Programmable DMA Controller

82C37A
AC Electrical Specifications
V_CC = +5.0V ±10%, GND = 0V, T_A = 0^oC to +70^oC (C82C37A),
T_A = -40^oC to +85^oC (I82C37A),
T_A = -55^oC to +125^oC (M82C37A) (Continued)
SYMBOL
PARAMETER
82C37A-5
MIN
MAX
82C37A
MIN
MAX
(62)TDVWL DACK Valid to WRITE LOW
25
-
25
-
82C37A-12
MIN
MAX
25
-
(63)TRHDI
READ HIGH to DACK Inactive
12
-
12
-
12
-
(64)TAZRL
ADR Float to READ LOW
-2.5
-
-2.5
-
-2.5
-
PERIPHERAL (SLAVE) MODE
(41)TAR
ADR Valid or CS LOW to READ LOW
10
-
10
-
0
-
(42)TAWL
ADR Valid to WRITE LOW Setup Time
0
-
0
-
0
-
(43)TCWL
CS LOW to WRITE LOW Setup Time
0
-
0
-
0
-
(44)TDW
Data Valid to WRITE HIGH Setup Time 150
-
100
-
60
-
(45)TRA
ADR or CS Hold from READ HIGH
0
-
0
-
0
-
(46)TRDE
Data Access from READ
-
140
-
120
-
80
(47)TRDF
DB Float Delay from READ HIGH
5
85
5
85
5
55
(48)TRSTD Power Supply HIGH to RESET LOW
500
-
500
-
500
-
Setup Time
(49)TRSTS RESET to First IOR or IOW
2TCY
-
2TCY
-
2TCY
-
(50)TRSTW RESET Pulse Width
300
-
300
-
300
-
(51)TRW
READ Pulse Width
200
-
155
-
85
-
(52)TWA
ADR from WRITE HIGH Hold Time
0
-
0
-
0
-
(53)TWC
CS HIGH from WRITE HIGH
Hold Time
0
-
0
-
0
-
(54)TWD
Data from WRITE HIGH Hold Time
10
-
10
-
10
-
(55)TWWS WRITE Pulse Width
150
-
100
-
45
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
18
FN2967.2
March 20, 2006