參數(shù)資料
型號(hào)： MAX7316AEE+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 16B 16QSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 100
接口： I²C，SM 總線
輸入/輸出數(shù)： 10
中斷輸出： 是
頻率 - 時(shí)鐘： 400kHz
電源電壓： 2 V ~ 3.6 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 16-SSOP（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-QSOP
包裝： 管件
Device Reset
The reset input RST is an active-low input. When taken
low, RST clears any transaction to or from the MAX7316
on the serial interface and configures the internal regis-
ters to the same state as a power-up reset (Table 3).
The MAX7316 then waits for a START condition on the
serial interface.
Detailed Description
Initial Power-Up
On power-up, and whenever the RST input is pulled
low, all control registers are reset and the MAX7316
enters standby mode (Table 3). Power-up status makes
all ports into inputs and disables both the PWM oscilla-
tor and blink functionality. RST can be used as a hard-
ware shutdown input, which effectively turns off any
LED (or other) loads and puts the device into its lowest
power condition.
Configuration Register
The configuration register is used to configure the PWM
intensity mode, interrupt, and blink behavior, operate
the INT/O8 output, and read back the interrupt status
(Table 4).
Ports Configuration
The eight I/O ports P0 through P7 can be configured to
any combination of inputs and outputs using the ports
configuration register (Table 5). The INT/O8 output can
also be configured as an extra general-purpose output,
and the BLINK input can be configured as an extra
general-purpose input using the configuration register
(Table 4).
Input Ports
The input ports register is read only (Table 6). It reflects
the incoming logic levels of the ports, regardless of
whether the port is defined as an input or an output by the
ports configuration registers. Reading the input ports reg-
ister latches the current-input logic level of the affected
eight ports. A write to the input ports register is ignored.
Transition Detection
All ports configured as inputs are always monitored for
changes in their logic status. The action of reading the
input ports register or writing to the configuration regis-
ter samples the corresponding 8 port bits’ input condi-
tion (Tables 4, 6). This sample is continuously
compared with the actual input conditions. A detected
change in input condition causes an interrupt condition.
The interrupt is cleared either automatically if the
changed input returns to its original state, or when the
input ports register is read, updating the compared
data (Figure 10). Randomly changing a port from an
output to an input may cause a false interrupt to occur
if the state of the input does not match the content of
the input ports register. The interrupt status is available
as the interrupt flag INT in the configuration register
(Table 4).
The input status of all ports are sampled immediately
after power-up as part of the MAX7316’s internal initial-
ization, so if all the ports are pulled to valid logic levels
at that time an interrupt does not occur at power-up.
MAX7316
10-Port I/O Expander with LED Intensity
Control, Interrupt, and Hot-Insertion Protection
______________________________________________________________________________________
11
Table 2. Register Address Map
REGISTER
ADDRESS CODE
(hex)
AUTOINCREMENT
ADDRESS
Read input ports
0x00
0x00 (no change)
Blink phase 0 outputs
0x01
0x01 (no change)
Ports configuration
0x03
0x03 (no change)
Blink phase 1 outputs
0x09
0x09 (no change)
Master, O8 intensity
0x0E
0x0E (no change)
Configuration
0x0F
0x0F (no change)
Outputs intensity P1, P0
0x10
0x11
Outputs intensity P3, P2
0x11
0x12
Outputs intensity P5, P4
0x12
0x13
Outputs intensity P7, P6
0x13
0x10
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX7316AEE+ 功能描述:接口-I/O擴(kuò)展器 10-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7316AEE+T 功能描述:接口-I/O擴(kuò)展器 10-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7316AEE-T 功能描述:接口-I/O擴(kuò)展器 10-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7316ATE 功能描述:接口-I/O擴(kuò)展器 10-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7316ATE+ 功能描述:接口-I/O擴(kuò)展器 10-Bit I/O Port Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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