ADS131B24-Q1
ZHCSN80 – JULY 2023
www.ti.com.cn
表 6-1. Pin Functions (continued)
PIN
TYPE
DESCRIPTION(1)
NAME
GPIO0A
NO.
3
Digital I/O
Digital I/O
General-purpose digital input/output 0A.(2) (3)
General-purpose digital input/output 0B.(2) (3)
GPIO0B
8
General-purpose digital input/output 0.(2) (4)
Missing host detect output.(2) (4)
GPIO0/MHD
33
Digital I/O
GPIO1
26
4
Digital I/O
Digital I/O
Digital I/O
General-purpose digital input/output 1.(2) (4)
General-purpose digital input/output 1A.(2) (3)
General-purpose digital input/output 1B.(2) (3)
GPIO1A
GPIO1B
7
General-purpose digital input/output 2.(2) (4)
Fault output.(2) (4)
GPIO2/FAULT
GPIO3/OCCA
GPIO4/OCCB
IOVDD
25
24
22
34
Digital I/O
Digital I/O
General-purpose digital input/output 3.(2) (4)
Overcurrent comparator A output.(2) (4)
General-purpose digital input/output 4.(2) (4)
Overcurrent comparator B output.(2) (4)
Digital I/O
Digital I/O supply. Connect a 1-μF capacitor to DGND.
Digital supply
Sets the logic levels for the digital I/Os, except for GPIO0A, GPIO1A, GPIO0B, and GPIO1B.
REFA voltage reference output. Connect a 1-μF capacitor to AGNDA.
REFB voltage reference output. Connect a 1-μF capacitor to AGNDB.
Reset input; active low. Internal pulldown resistor to DGND.
Serial data clock input.(4)
RCAPA
RCAPB
RESETn
SCLK
SDI
41
20
23
28
30
29
2
Analog output
Analog output
Digital input
Digital input
Digital input
Digital output
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
—
Serial data input.(4)
SDO
V0A
Serial data output.(2) (4)
ADC2A analog input 0A.
V0B
11
1
ADC2B analog input 0B.
V1A
ADC2A analog input 1A.
V1B
12
48
13
47
14
46
15
45
16
44
17
43
18
Pad
ADC2B analog input 1B.
V2A
ADC2A analog input 2A.
V2B
ADC2B analog input 2B.
V3A
ADC2A analog input 3A.
V3B
ADC2B analog input 3B.
V4A
ADC2A analog input 4A.
V4B
ADC2B analog input 4B.
V5A
ADC2A analog input 5A.
V5B
ADC2B analog input 5B.
V6A
ADC2A analog input 6A.
V6B
ADC2B analog input 6B.
V7A
ADC2A analog input 7A.
V7B
ADC2B analog input 7B.
Thermal Pad
Thermal power pad. Connect to AGND.
(1) See the Unused Inputs and Outputs section for details on how to connect unused pins.
(2) Push-pull output.
(3) Logic levels referenced to AVDD.
(4) Logic levels referenced to IOVDD.
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Product Folder Links: ADS131B24-Q1
English Data Sheet: SBASAA4