參數(shù)資料
型號(hào)： ADSP-21mod970
廠商： Analog Devices, Inc.
英文描述： Multi-Port Internet Gateway Processor(多口網(wǎng)關(guān)處理器)
中文描述： 多端口Internet網(wǎng)關(guān)處理器（多口網(wǎng)關(guān)處理器）
文件頁(yè)數(shù)： 26/50頁(yè)
文件大?。?/td> 980K
代理商： ADSP-21MOD970
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ADSP-21mod970 Preliminary Data Sheet
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Data
f
= 1.0 MHz,
T
AMB
= +25
°
C
Technca
Output Pin Capacitance
6, 7, 12, 13
ADSP-21MOD970–ELECTRICAL SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
NOTES
1
Bidirectional pins: D0–D23, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A1–A13, PF0–PF7.
2
Input only pins: RESET, BR, DR0, DR1, PWD.
3
Input only pins: CLKIN, RESET, BR, DR0, DR1, PWD.
4
Output pins: BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2-0, BGH.
5
Although specified for TTL outputs, all ADSP-21mod970 outputs are CMOS-compatible and will drive to V
DD
and GND, assuming no dc loads.
6
Guaranteed but not tested.
7
Three-statable pins: A0–A13, D0-D23, PMS, DMS, BMS, IOMS, CMS, RD, WR, DT0, DT1, SCLK0, SCLK1, TFS0, TFS1, RFS0, RSF1, PF0–PF7.
8
0 V on BR.
9
Idle refers to ADSP-21mod970 state of operation during execution of IDLE instruction. Deasserted pins are driven to either V
DD
or GND.
10
I
DD
measurement taken with all instructions executing from internal memory. 50% of the instructions are multifunction (types 1, 4, 5, 12, 13, 14), 30% are type 2
and type 6, and 20% are idle instructions.
11
V
IN
= 0 V and 3 V. For typical figures for supply currents, refer to “Power Dissipation” section.
12
Applies to TQFP package type.
13
Output pin capacitance is the capacitive load for any three-stated output pin.
Parameter
V
DD
T
AMB
K Grade
Min
3.15
0
Max
3.45
+70
Unit
V
°
C
Parameter
V
IH
V
IH
V
IL
V
OH
Test Conditions
@ V
DD
= max
@ V
DD
= max
@ V
DD
= min
@ V
DD
= min
I
OH
= –0.5 mA
@ V
DD
= min
I
OH
= –100 μA
6
@ V
DD
= min
I
OL
= 2 mA
@ V
DD
= max
V
IN
= V
DD
max
@ V
DD
= max
V
IN
= 0 V
@ V
DD
= max
8
@ V
DD
= max
V
IN
= 0 V
8
@ V
DD
= 3.3
@ V
DD
= 3.3
T
AMB
= +25
°
C
CK
= 34.7 ns
11
@V
IN
= 2.5 V,
f
IN
= 1.0 MHz,
T
AMB
= +25
°
C
@V
IN
= 2.5 V,
K/B Grades
Min
2.0
2.2
Typ
Max
Unit
V
V
V
Hi-Level Input Voltage
1, 2
Hi-Level CLKIN Voltage
Lo-Level Input Voltage
1, 3
Hi-Level Output Voltage
1, 4, 5
V
OL
Lo-Level Output Voltage
1, 4, 5
I
IH
Hi-Level Input Current
3
I
IL
Lo-Level Input Current
3
I
OZH
Three-State Leakage Current
7
I
OZL
Three-State Leakage Current
7
I
DD
I
DD
Supply Current (Idle)
9
Supply Current (Dynamic)
10
C
I
Input Pin Capacitance
3, 6, 12
C
O
0.8
2.4
V
DD
-0.3
0.4
10
10
10
10
TBD
TBD
8
8
V
V
V
μ
A
μ
A
μ
A
μ
A
mA
mA
pF
pF
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