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SPEAR300 Fiches technique(PDF) 54 Page - STMicroelectronics

No de pièce SPEAR300
Description  Embedded MPU with ARM926 core, flexible memory support, powerful connectivity features and human machine interface
PDF  83 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR300 Fiches technique(HTML) 54 Page - STMicroelectronics

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Electrical characteristics
SPEAr300
54/83
Doc ID 16324 Rev 2
5.5
3.3V I/O characteristics
The 3.3 V I/Os are compliant with JEDEC standard JESD8b
5.6
LPDDR and DDR2 pin characteristics
Table 19.
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 20.
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 2.29: 8-channel ADC.
0.3
V
VOH
High level output voltage
IOH= -X mA
(1)
VDD - 0.3
V
Table 21.
Pull-up and pull-down characteristics
Symbol
Parameter
Test condition
Min
Max
Unit
RPU
Equivalent pull-up resistance
VI = 0 V
29
67
k
RPD
Equivalent pull-down
resistance
VI = VDDE3V3
29
103
k
Table 22.
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 23.
Driver characteristics
Symbol
Parameter
Min
Typ
Max
Unit
RO
Output impedance (strong value)
40.5
45
49.5
Output impedance (weak value)
44.1
49
53.9



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