參數(shù)資料
型號(hào)： TNT4882-BQ
英文描述： Peripheral Miscellaneous
中文描述： 周邊雜項(xiàng)
文件頁(yè)數(shù)： 4/16頁(yè)
文件大?。?/td> 165K
代理商： TNT4882-BQ
TNT4882
Single-Chip IEEE 488.2 Talker/Listener ASIC
National Instruments
Phone: (512) 794-0100 Fax: (512) 683-9300 info@natinst.com www.natinst.com
4
Pin No.(s)
51
52
53
Name(s)
DCAS
NC
MODE
Type
O
O
I
Description
Asserts when the device clear state machine is in DCAS
Leave this pin unconnected
Determines whether the TNT4882 powers up in 7210 or 9914 emulation mode –
High = 7210 mode, Low = 9914 mode
Chip Select enables I/O transfers between the CPU and the TNT4882
Enables register accesses through the B bus (DATA7-0)
Enables the contents of the registers selected by ADDR 4:0 and CSN or the FIFOs to
appear on the data bus selected by ABUSN and BBUSN
Latches data on the bus selected by ABUSN and BBUSN into an internal TNT4882 register
on the trailing (rising) edge of WRN
Asserts when the TNT4882 is addressed as a Listener
Holds the TNT4882 in its idle state
8-bit bidirectional IEEE 488 data bus
55
62
63
CSN
BBUSN
RDN
I
I
I
64
WRN
I
66
67
71,74,7780,88,
89,91,92
70,73,76,79,
81,82,84,85
LADCS
RESETN
DIO8-1N
O
I
I/O
RENN, ATNN, SRQN,
IFCN, NDACN, NRFDN,
DAVN, EOIN
XTAL0
XTAL1
KEYCLKN
KEYDQ
KEYRSTN
GND
I/O
IEEE 488 control signals
95
96
98
99
100
4,8,13,25,2735,37
41,45,48,54,56,57,
59,61,65,68,72,75,
78,83,86,90,93,97
12,24,36,40,58,
60,69,87,94
O
I
O
I/O
O
_
Output of crystal circuit – use only for driving a quartz crystal
Crystal oscillator input – drive with a 40 MHz CMOS input level clock signal
Strobes data to or from a DS1204 electronic key
Transmits serial data between the TNT4882 and a DS1204 key
Resets a DS1204 key
Ground pins – 0 V
VDD
_
Power pins – +5 V (±5%)
D
G
I
D
G
I
D
S
G
D
A
R
G
R
80 79 78 77 76 75 74 73 72
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17
71 70 69 68 67 66 65 64
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
G
DATA5
DATA4
GND
DATA3
DATA2
DATA1
GND
VDD
AEN_N
VDD
GND
INTR
DACKN
DRQ
ADDR9
DATA0
IOCHRDY
DAVN
EOIN
GND
VDD
DIO4N
GND
DIO2N
DIO1N
GND
DIO3N
VDD
XTAL0
XTAL1
GND
KEYCLKN
KEYDQ
KEYRSTN
I
G
V
S
S
N
D
A
A
A
A
A
B
A
G
A
A
A
TNT4882
ISA Pin Configuration
V
18 19 20 21 22 23 24 25 26 27 28 29 30
D
G
D
D
D
G
D
D
D
D
D
V
G
48
GND
49
DATA6
50
DATA7
63
I
62
S
61
G
60
V
59
V
58
V
57
G
56
V
55
S
54
N
53
M
52
S
51
S
83
GND
82
NRFDN
81
NDACN
ISA Pin Configuration
Figure 4. TNT4882 ISA Pin Configuration
Table continued from page 3
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