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SPEAR600 Fiches technique(PDF) 57 Page - STMicroelectronics

No de pièce SPEAR600
Description  Embedded MPU with dual ARM926 core, flexible memory support, powerful connectivity features and programmable LCD interface
PDF  97 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR600 Fiches technique(HTML) 57 Page - STMicroelectronics

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SPEAr600
Electrical characteristics
Doc ID 16259 Rev 3
57/97
5.5
3.3V I/O characteristics
The 3.3 V I/Os are compliant with JEDEC standard JESD8b
5.6
DDR2 pin characteristics
Table 23.
Low voltage TTL DC input specification (3 V< VDD <3.6 V)
Symbol
Parameter
Min
Max
Unit
VIL
Low level input voltage
0.8
V
VIH
High level input voltage
2
V
Vhyst
Schmitt trigger hysteresis
300
800
mV
Table 24.
Low voltage TTL DC output specification (3 V< VDD <3.6 V)
Symbol
Parameter
Test Condition
Min
Max
Unit
VOL
Low level output voltage
IOL= X mA
(1)
1.
For the max current value (X mA) refer to Section 3: Pin description.
0.3
V
VOH
High level output voltage
IOH= -X mA
(1)
VDD - 0.3
V
Table 25.
Pull-up and pull-down characteristics
Symbol
Parameter
Test Condition
Min.
Max
Unit
RPU
Equivalent pull-up resistance
VI = 0 V
29
67
K
Ω
RPD
Equivalent pull-down
resistance
VI = VDDE3V3
29
103
K
Ω
Table 26.
DC characteristics
Symbol
Parameter
Test Condition
Min.
Max
Unit
VIL
Low level input voltage
SSTL2
-0.3
VREF-0.15
V
SSTL18
-0.3
VREF-0.125
V
VIH
High level input voltage
SSTL2
VREF+0.15
VDDE2V5+0.3
V
SSTL18
VREF+0.125
VDDE1V8+0.3
V
Vhyst
Input voltage hysteresis
200
mV
Table 27.
Driver characteristics
Symbol
Parameter
Min
Typ
Max
Unit
RO
Output impedance (strong value)
18.9
21
23.1
Ω
Output impendance (weak value)
32.9
35
37.1
Ω



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