82C37A_06 Datasheet, PDF (17/24 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
(21)TEPW
EOP Pulse Width
220
-
135
-
82C37A-12
MIN
MAX
50
-
(22)TFAAB
ADR Valid Delay from CLK HIGH
-
110
-
60
-
50
(23)TFAC
READ or WRITE Active from
CLK HIGH
-
150
-
90
-
50
(24)TFADB DB Valid Delay from CLK HIGH
-
110
-
60
-
45
(25)THS
HLDA Valid to CLK HIGH Setup Time
75
-
45
-
10
-
(26)TIDH
Input Data from MEMR HIGH
Hold Time
0
-
0
-
0
-
(27)TIDS
Input Data to MEMR HIGH
Setup Time
155
-
90
-
45
-
(28)TODH
Output Data from MEMW HIGH
Hold Time
15
-
15
-
TCY-50
-
(29)TODV
Output Data Valid to MEMW HIGH
TCY-35
-
TCY-35
-
TCY-10
-
(30)TQS
DREQ to CLK LOW (SI, S4)
Setup Time
0
-
0
-
0
-
(31)TRH
CLK to READY LOW Hold Time
20
-
20
-
10
-
(32)TRS
READY to CLK LOW Setup Time
60
-
35
-
15
-
(33)TCLSH
ADSTB HIGH from CLK LOW
Delay Time
-
80
-
70
-
70
(34)TCLSL
ADSTB LOW from CLK LOW
Delay Time
-
120
-
120
-
60
(35)TWRRD READ HIGH Delay from WRITE HIGH
0
-
0
-
5
-
(36)TRLRH READ Pulse Width, Normal Timing
2TCY-60
-
2TCY-60
-
2TCY-55
-
(37)TSHSL ADSTB Pulse Width
TCY-80
-
TCY-50
-
TCY-35
-
(38)TWLWHA Extended WRITE Pulse Width
2TCY-100
-
2TCY-85
-
2TCY-80
-
(39)TWLWH WRITE Pulse Width
TCY-100
-
TCY-85
-
TCY-80
-
(40)TRLRHC READ Pulse Width, Compressed
TCY-60
-
TCY-60
-
TCY-55
-
(56)TAVRL
ADR Valid to READ LOW
17
-
17
-
17
-
(57)TAVWL ADR Valid to WRITE LOW
7
-
7
-
7
-
(58)TRHAL READ HIGH to AEN LOW
15
-
15
-
15
-
(59)TRHSH READ HIGH to ADSTB HIGH
13
-
13
-
13
-
(60)TWHSH WRITE HIGH to ADSTB HIGH
15
-
15
-
15
-
(61)TDVRL DACK Valid to READ LOW
25
-
25
-
25
-
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
17
FN2967.2
March 20, 2006