參數(shù)資料
型號(hào)： MCP23S17T-E/ML
廠商： Microchip Technology
文件頁(yè)數(shù)： 34/48頁(yè)
文件大小： 0K
描述： IC I/O EXPANDER SPI 16B 28QFN
標(biāo)準(zhǔn)包裝： 1,600
接口： SPI
輸入/輸出數(shù)： 16
中斷輸出： 是
頻率 - 時(shí)鐘： 10MHz
電源電壓： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 28-VQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 28-QFN（6x6）
包裝： 帶卷 (TR)
配用： MCP23X17EV-ND - BOARD EVAL FOR MCP23X17
GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
MCP23017/MCP23S17
DS21952B-page 4
2007 Microchip Technology Inc.
1.1
Pin Descriptions
TABLE 1-1:
PINOUT DESCRIPTION
Pin
Name
PDIP/
SOIC/
SSOP
QFN
Pin
Type
Function
GPB0
1
25
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB1
2
26
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB2
3
27
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB3
4
28
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB4
5
1
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB5
6
2
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB6
7
3
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPB7
8
4
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
VDD
95
P
Power
VSS
10
6
P
Ground
NC/CS
11
7
I
NC (MCP23017), Chip Select (MCP23S17)
SCL/SCK
12
8
I
Serial clock input
SDA/SI
13
9
I/O
Serial data I/O (MCP23017), Serial data input (MCP23S17)
NC/SO
14
10
O
NC (MCP23017), Serial data out (MCP23S17)
A0
15
11
I
Hardware address pin. Must be externally biased.
A1
16
12
I
Hardware address pin. Must be externally biased.
A2
17
13
I
Hardware address pin. Must be externally biased.
RESET
18
14
I
Hardware reset. Must be externally biased.
INTB
19
15
O
Interrupt output for PORTB. Can be configured as active-high, active-low or open-drain.
INTA
20
16
O
Interrupt output for PORTA. Can be configured as active-high, active-low or open-drain.
GPA0
21
17
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA1
22
18
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA2
23
19
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA3
24
20
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA4
25
21
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA5
26
22
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA6
27
23
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
GPA7
28
24
I/O
Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up
resistor.
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