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SPEAR1340 Datasheet(PDF) 40 Page - STMicroelectronics |
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SPEAR1340 Datasheet(HTML) 40 Page - STMicroelectronics |
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40 / 200 page  Pin description SPEAr1340 40/200 Doc ID 023063 Rev 4 Pin type Pad type information ANA= Analog OSC= Oscillator SSTL= SSTL 1V5/1V8 IOTYPE1= 3V3 IOTYPE2= 3V3/1V8 IOTYPE3= 3V3/2V5 IOTYPE4= 3V3 TTL buffer REG OUT= Voltage regulator output ANA REF= Analog reference DED GND= Dedicated ground PU/PD Indicates the presence of an internal pull-up or pull-down resistor. Pull-up and pull-down can be enabled or disabled via software. PU= Pull-up PD= Pull-down Deact= Deactivated Drive Drive current capability – Slew Signal transition FAST= Fast slew NOM= Nominal slew Direction Indicates the direction of the pad. I= Input O= Output IO= Input/output Out value Indicates the electrical value on the ball. 0= The buffer drives VOL 1= The buffer drives VOH H= High-impedance with an active pull-up resistor L= High-impedance with an active pull-down resistor Z= High-impedance Supply name The voltage supply that powers the pad. See Table 4: Power supply signals description. – Reset state Indicates the state during reset – Reset rel. state Indicates the state after reset – Reset mode IO voltage setting during reset – Reset rel. mode IO voltage setting after reset – Compensation cell Compensation cell for reducing the spread of PVT (process, voltage and temperature) related parameters of the I/O pad. The compensation values are programmable in the registers of the related cell. CC1= IO_COMP1_3V3 CC2= IO_COMP2_3V3 CC3= IO_COMP1_1V8_3V3 CC4= IO_COMP2_1V8_3V3 CC5= IO_COMP_2V5_3V3 CC6= IO_COMP_DDR Table 2. Headers/abbreviations (continued) Header Description Abbreviations |
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