参数资料
型号: 4450HG/3-K
厂商: EXAR CORP
元件分类: 微控制器/微处理器
英文描述: MICROPROCESSOR, PBGA324
封装: ROHS COMPLIANT, HSBGA-324
文件页数: 65/92页
文件大小: 780K
代理商: 4450HG/3-K
4450 – Data Sheet, DS-0131-06
Page 68
Hifn Confidential
Table 7-6. DC Electrical Characteristics (GPIO Interfaces)
VIL_sstl18
Low level input voltage (DDR2
SDRAM Interface)
Vddr = 1.8V
Vvref_ddr =
tbd V
-0.3
V
VIH_sslt18
High level input voltage (DDR2
SDRAM Interface)
Vddr = 1.8V
Vvref_ddr =
tbd V
Vddr
+0.3
V
VOL-sstl18
Low level output voltage
(DDR2 - SSTL_18 Driver)
Vddr= 1.9V
IOL = 4mA
0V
VOH_sstl18
High level output voltage
(DDR2 - SSTL_18 Driver)
Vddr =1.9V
IOH = -4mA
Vddr
V
RTT1(eff)
RTT1 Effective Impedance Value
60
75
90
Ω
RTT2(eff)
RTT1 Effective Impedance Value
120
150
180
Ω
Raserddrv_18
SSTL_18 Address Driver Series
Output Resistance
916
25
Ω
Reserddrv_18
SSTL_18 Clock Driver Series Output
Resistance
916
25
Ω
Rdserddrv_18
SSTL_18 Data Driver Series Output
Resistance
916
25
Ω
Ileakage
Driver Pad leakage
100
nA
Iponddq_u
Receiver Current Draw (un-
terminated)
250
A
Iponddq_t
Receiver Current Draw (terminated)
850
A
Ipdnddq
Receiver IDDQ PON
10
nA
Note
The DC information is preliminary and subject to change.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIL_lvcmos/
lvttl
Low level input voltage (GPIO)
Vdde = 3.6V
0.8
V
VIH_lvcmos/
lvttl
High level input voltage (GPIO)
Vdde = 3.6V
2.0
V
VOL_lvcmos/
lvttl
Low level output voltage (GPIO)
Vdde = 3.6V
IOL = 4mA
0
0.4
V
VOH_lvcmos/
lvttl
High level output voltage (GPIO)
Vdde = 3.6V
IOH = -4mA
Vdde-
0.4
Vdde
V
IOL_lvcmos/
lvttl
Low level Output current (GPIO)
VIN = Vss
Vdde = 3.6V
- 6
mA
IOH_lvcmos/
lvttl
High level Output current (GPIO)
VIN = Vdde
Vdde = 3.6V
6mA
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