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STR720 Datasheet(PDF) 394 Page - STMicroelectronics

No. de pieza STR720
Descripción Electrónicos  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PDF  401 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR720 Datasheet(HTML) 394 Page - STMicroelectronics

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STR720 - ELECTRICAL CHARACTERISTICS
394/401
1.
See Figure 81 and Figure 82 for a definition of these parameters.
2.
VDD(all) = 1.80 V ± 10%, VDD3(all) = 3.30 V ± 10%, TA = -40 / +85 °C unless otherwise specified.
3.
Data based on design guidelines, not tested in production.
4.
TC is CPU clock period expressed in ns. For example if CPU clock is set to run at 50 MHz, TC =20 ns.
5.
Actual duration is configurable. See Chapter 11: EXTERNAL MEMORY INTERFACE (EMI) on page 115.
Figure 81. EMI Read cycle timing (8-bit or 16-bit word)
Figure 82. EMI Read cycle timing (32-bit word)
ECSx
EWEx
EADD[21:0]
EDATA[15:0]
ERD
(Input)
Address
Data Input
wait cycle
wait cycle
wait cycle
tRDS
tRDH
tRASR
tRAH
Note: this diagram shows the timing of 3 wait-state cycle read access.
tRPR1
tSP
tRASC
tRPC1
wait cycle
ECSx
EWEx
EADD[21:1]
EDATA[15:0]
ERD
(Input)
Address
Data Input
wait cycle
tRDS
tRDH
tRASC
tRAH
tRPR2
tSP
EADD[0]
tSP
Data Input
tRDS
tRDH
tRPC1
Note: this diagram shows the timing of 1wait-state cycle read access.
tRPC2
tRASR



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