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| 型号： | MCP23016-I/SS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16 I/O, PIA-GENERAL PURPOSE, PDSO28 |
| 封装： | 0.209 INCH, PLASTIC, SSOP-28 |
| 文件页数： | 33/38页 |
| 文件大小： | 543K |
| 代理商： | MCP23016-I/SS |
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MCP23016
DS20090C-page 4
2007 Microchip Technology Inc.
1.2
Power-on Reset (POR)
The on-chip POR circuit holds the chip in RESET until
VDD has reached a high enough level to deactivate the
POR circuit (i.e., release RESET). A maximum rise
time for VDD is specified in the electrical specifications.
When the device starts normal operation (exits the
RESET
condition),
device
operating
parameters
(voltage, frequency, temperature) must be met to
ensure proper operation.
1.3
Power-up Timer (PWRT)
The Power-up Timer provides a 72 ms nominal time-
out on power-up, keeping the device in RESET and
allowing VDD to rise to an acceptable level.
The power-up time delay will vary from chip-to-chip due
to VDD, temperature and process variation. See
1.4
Clock Generator
The MCP23016 uses an external RC circuit to
determine the internal clock speed. The user must
connect R and C to the MCP23016, as shown in
FIGURE 1-1:
CLOCK CONFIGURATION
A 1 MHz (typ.) internal clock is needed for the device to
function properly. The internal clock can be measured
on the TP pin. Recommended REXT and CEXT values
are shown in Table 1-2.
1.5
I2C Bus Interface/ Protocol
Handler
This block manages the functionality of the I2C bus
interface and protocol handling. The MCP23016
supports the following commands:
TABLE 1-3:
COMMAND BYTE TO
REGISTER RELATIONSHIP
1.6
Address Decoder
The last three LSb of the 7-bit address are user-defined
(see Table 1-4). Three hardware pins (<A2:A0>) define
these bits.
TABLE 1-4:
DEVICE ADDRESS
Internal Clock
MCP23016
VDD
REXT
CEXT
VSS
CLK
Note:
Set IARES = 1 to measure the clock
output on TP.
TABLE 1-2:
RECOMMENDED VALUES
REXT
CEXT
3.9 k
Ω
33 pF
Command Byte
Result
0h
Access to GP0
1h
Access to GP1
2h
Access to OLAT0
3h
Access to OLAT1
4h
Access to IPOL0
5h
Access to IPOL1
6h
Access to IODIR0
7h
Access to IODIR1
8h
Access to INTCAP0 (Read-Only)
9h
Access to INTCAP1 (Read-Only)
Ah
Access to IOCON0
Bh
Access to IOCON1
0100
A2
A1
A0
相关PDF资料 |
PDF描述 |
|---|---|
| MCP23016-I/SO | 16 I/O, PIA-GENERAL PURPOSE, PDSO28 |
| MCP23016-I/SP | 16 I/O, PIA-GENERAL PURPOSE, PDIP28 |
| MCP23S17T-E/SO | 16 I/O, PIA-GENERAL PURPOSE, PDSO28 |
| MCP23017-E/SP | 16 I/O, PIA-GENERAL PURPOSE, PDIP28 |
| MCP23S17-E/SS | 16 I/O, PIA-GENERAL PURPOSE, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP23016T-I/ML | 功能描述:接口-I/O扩展器 16 bit In/Out RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MCP23016T-I/SO | 功能描述:接口-I/O扩展器 16 bit In/Out RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MCP23016T-I/SS | 功能描述:接口-I/O扩展器 16 bit In/Out RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MCP23017 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:16-Bit I/O Expander with Serial Interface |
| MCP23017-E/ML | 功能描述:接口-I/O扩展器 16bit Input/Output Exp I2C interface RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
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