Intel® Cyclone® 10 LP Device Datasheet

ID 683251
Date 10/31/2022
Public
Document Table of Contents

Internal Weak Pull-Up and Weak Pull-Down Resistor

Table 11.  Internal Weak Pull-Up and Weak Pull-Down Resistor Values for Cyclone 10 DevicesAll I/O pins have an option to enable weak pull-up except the configuration, test, and JTAG pins. The weak pull-down feature is only available for JTAG TCK pin.
Symbol Parameter Condition Min Typ Max Unit
R_PU Value of the I/O pin pull-up resistor before and during configuration, as well as user mode if you enable the programmable pull-up resistor option VCCIO = 3.3 V ± 5% 21 22 7 25 41
VCCIO = 3.0 V ± 5% 21 22 7 28 47
VCCIO = 2.5 V ± 5% 21 22 8 35 61
VCCIO = 1.8 V ± 5% 21 22 10 57 108
VCCIO = 1.5 V ± 5% 21 22 13 82 163
VCCIO = 1.2 V ± 5% 21 22 19 143 351
R_PD Value of the I/O pin pull-down resistor before and during configuration VCCIO = 3.3 V ± 5%  23 6 19 30
VCCIO = 3.0 V ± 5% 23 6 22 36
VCCIO = 2.5 V ± 5% 23 6 25 43
VCCIO = 1.8 V ± 5% 23 7 35 71
VCCIO = 1.5 V ± 5% 23 8 50 112
21 Pin pull-up resistance values may be lower if an external source drives the pin higher than VCCIO.
22 R_PU = (VCCIO – VI)/IR_PU
Minimum condition: –40°C; VCCIO  = VCC + 5% , VI  = VCC + 5%  – 50 mV;
Typical condition: 25°C; VCCIO  = VCC, VI  = 0 V;
Maximum condition: 100°C; VCCIO  = VCC – 5% , VI  = 0 V; in which VI  refers to the input voltage at the I/O pin.
23 R_PD = VI/IR_PD
Minimum condition: –40°C; VCCIO  = VCC + 5% , VI  = 50 mV;
Typical condition: 25°C; VCCIO  = VCC, VI  = VCC – 5% ;
Maximum condition: 100°C; VCCIO  = VCC – 5% , VI  = VCC – 5% ; in which VI  refers to the input voltage at the I/O pin.