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TMPE633 User Manual Issue 1.0.3
Page 13 of 25
OE<7>#
U11
OUTPUT
LVCMOS33
2
8
SLOW
OE<8>#
V11
OUTPUT
LVCMOS33
2
8
SLOW
OE<9>#
V4
OUTPUT
LVCMOS33
2
8
SLOW
OE<10>#
T7
OUTPUT
LVCMOS33
2
8
SLOW
OE<11>#
T3
OUTPUT
LVCMOS33
2
8
SLOW
OE<12>#
P6
OUTPUT
LVCMOS33
2
8
SLOW
OE<13>#
R10
OUTPUT
LVCMOS33
2
8
SLOW
OE<14>#
F17
OUTPUT
LVCMOS33
1
8
SLOW
OE<15>#
L17
OUTPUT
LVCMOS33
1
8
SLOW
OE<16>#
M10
OUTPUT
LVCMOS33
2
8
SLOW
OE<17>#
N9
OUTPUT
LVCMOS33
2
8
SLOW
OE<18>#
T12
OUTPUT
LVCMOS33
2
8
SLOW
OE<19>#
P11
OUTPUT
LVCMOS33
2
8
SLOW
OE<20>#
T4
OUTPUT
LVCMOS33
2
8
SLOW
OE<21>#
V8
OUTPUT
LVCMOS33
2
8
SLOW
OE<22>#
R3
OUTPUT
LVCMOS33
2
8
SLOW
OE<23>#
U5
OUTPUT
LVCMOS33
2
8
SLOW
OE<24>#
V6
OUTPUT
LVCMOS33
2
8
SLOW
OE<25>#
T6
OUTPUT
LVCMOS33
2
8
SLOW
Table 4-7 : Digital I/O Interface
4.5.1 TTL I/O Interface
Each TTL I/O line is buffered by a 74LVC2G241 tri-state buffer that provides TTL compatible inputs with 5 V-
tolerance. The outputs can be set to tri-state with an output enable signal and provide a 47 Ω serial resistor
for signal integrity and a 4.7 kΩ pull resistor. A TVS array protects against ESD shocks. The pull resistor
guarantees a valid logic level when the outputs are tristate and not driven externally. The pull voltage can be
set to 3.3 V, 5 V or GND.
XILINX
FPGA
DIOx
OEx
4k7
I/O_x
X2
47R
5V, 3.3V or GND
MSMF05
(Protection)
Figure 4-1 : TTL I/O Interface