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参数资料
| 型号： | AD73460 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Six-Input Channel Analog Front End |
| 中文描述： | 六输入通道模拟前端 |
| 文件页数： | 22/32页 |
| 文件大小： | 290K |
| 代理商： | AD73460 |
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REV. 0
AD73460
–22–
Full Memory Mode Pins (Mode C = 0)
Pin
Name(s) Pins Output Function
A13:0
14
O
# of
Input/
Address Output Pins for Program,
Data, Byte and I/O Spaces
Data I/O Pins for Program, Data,
Byte and I/O Spaces (8 MSBs are
also used as Byte Memory addresses)
D23:0
24
I/O
Host Mode Pins (Mode C = 1)
Pin
Name(s) Pins Output Function
IAD15:0 16
I/O
A0
1
O
# of
Input/
IDMA Port Address/Data Bus
Address Pin for External I/O, Pro-
gram, Data or Byte access
Data I/O Pins for Program, Data
Byte and I/O spaces
IDMA Write Enable
IDMA Read Enable
IDMA Address Latch Pin
IDMA Select
IDMA Port Acknowledge Configur-
able in Mode D; Open Source
D23:8
16
I/O
IWR
IRD
IAL
IS
IACK
1
1
1
1
1
I
I
I
I
O
NOTE
In Host Mode, external peripheral addresses can be decoded using the A0,
CMS
,
PMS
,
DMS
, and
IOMS
signals
Terminating Unused Pin
The following table shows the recommendations for terminating
unused pins.
Pin Terminations
I/O
Three-
State (Z) State
Hi-Z
*
Caused
By
Pin
Name
Reset
Unused
Configuration
XTAL
CLKOUT
A13:1 or
IAD12:0
A0
D23:8
D7 or
IWR
D6 or
IRD
D5 or
IAL
D4 or
IS
D3 or
IACK
D2:0 or
IAD15:13
PMS
DMS
BMS
IOMS
CMS
RD
I
O
O (Z)
I/O (Z)
O (Z)
I/O (Z)
I/O (Z)
I
I/O (Z)
I
I/O (Z)
I
I/O (Z)
I
I/O (Z)
I
O
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
I
Hi-Z
I
Hi-Z
I
Hi-Z
I
Hi-Z
Float
Float
Float
Float
Float
Float
Float
High (Inactive)
Float
High (Inactive)
Float
Low (Inactive)
Float
High (Inactive)
Float
Float
Float
Float
Float
Float
Float
Float
Float
Float
BR
,
EBR
IS
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
I/O (Z)
I/O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
Hi-Z
Hi-Z
O
O
O
O
O
O
BR
,
EBR
IS
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
BR
,
EBR
Pin Terminations (continued)
I/O
Three-
State (Z) State
Hi-Z
*
Caused
By
Pin
Name
Reset
Unused
Configuration
WR
BR
BG
BGH
IRQ2
/
PF7
O (Z)
I
O (Z)
O
I/O (Z)
O
I
O
O
I
BR
,
EBR
Float
High (Inactive)
Float
Float
Input = High (Inactive)
or Program as Output,
Set to 1, Let Float
Input = High (Inactive)
or Program as Output,
Set to 1, Let Float
Input = High (Inactive)
or Program as Output,
Set to 1, Let Float
Input = High (Inactive)
or Program as Output,
Set to 1, Let Float
Input = High or Low,
Output = Float
High or Low
High or Low
High or Low
Float
Input = High or Low,
Output = Float
High or Low
High or Low
High or Low
Float
EE
IRQL1
/
PF6
I/O (Z)
I
IRQL0
/
PF5
I/O (Z)
I
IRQE
/
PF4
I/O (Z)
I
SCLK0
I/O
I
RFS0
DR0
TFS0
DT0
SCLK1
I/O
I
I/O
O
I/O
I
I
O
O
I
RFS1/
IRQ0
DR1/
FL1
TFS1/
IRQ1
DT1/FO
EE
EBR
EBG
ERESET
EMS
EINT
ECLK
ELIN
ELOUT
I/O
I
I/O
O
I
I
O
I
O
I
I
I
O
I
I
O
O
I
I
O
I
O
I
I
I
O
NOTES
*
Hi-Z = High Impedance.
1. If the CLKOUT pin is not used, turn it OFF.
2. If the Interrupt/Programmable Flag pins are not used, there are two options:
Option 1: When these pins are configured as INPUTS at reset and function as
interrupts and input flag pins, pull the pins High (inactive).
Option 2: Program the unused pins as OUTPUTS, set them to 1, and let
them float.
3. All bidirectional pins have three-stated outputs. When the pins is configured
as an output, the output is Hi-Z (high impedance) when inactive.
4. CLKIN, RESET, and PF3:0 are not included in the table because these pins
must be used.
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