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参数资料
| 型号： | MCZ33884EG |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 3/21页 |
| 文件大小： | 0K |
| 描述： | IC MULTIPLE CONTACT MON 24-SOIC |
| 标准包装： | 30 |
| 系列： | * |
| 应用： | * |
| 接口： | * |
| 电源电压： | * |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
Analog Integrated Circuit Device Data
Freescale Semiconductor
11
33884
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
SYNCHRONIZATION (SYNC)
The Synchronization (SYNC) input is used by the slave IC
during the Polling mode. The SYNC allows multiple 33884
ICs to poll the multiple inputs concurrently. The master
controls the polling period. The slave is allowed to shut down
it’s oscillator, thereby conserving current. When the slave
receives the SYNC signal from the master, the slave starts
the internal oscillator and reads the switch inputs.
INTERRUPT (INT)
The Interrupt (INT) pin is an interrupt output from the
33884. The INT pin is an open drain output with an internal
pull-up. In the Normal mode, a switch state change triggers
the INT pin. The INT pin and INT bit (flag) are latched on the
falling edge of CS. This procedure determines the interrupt
origin. The flag INT bit in the SPI word is the inverse of the
INT pin. The INT pin is cleared on the rising edge of CS. The
INT pin is active only during the ON time (when sink and
source currents are active) in the Polling mode.
RESET (RST)
The Reset (RST) pin is active low reset input to the 33884.
When asserted, the 33884 will reset all internal registers,
timers, and enters a Sleep mode (with all switch inputs in a
Tri-State condition). Only an MCU SPI command word will
wake the 33884 from a Sleep state. The RST pin may be
controlled directly from a general purpose input/output
(GPIO) pin or from a system/MCU reset.
BANDGAP VOLTAGE (VBG)
The Bandgap Voltage (VBG) pin requires a 130 k
to
ground for standard wetting and sustain currents. The device
is tested with a 0.1 percent value, but a standard 1.0 percent
could be used to function properly.
VOLTAGE POWER (VPWR)
The Voltage Power (VPWR) pin is battery/supply source
pin for the 33884. The VPWR pin requires external reverse
battery/supply and transient protection. Maximum input
voltage on VPWR is 40 V. All wetting currents and sustain
currents are derived from VPWR.
SWITCH PINS (SP1 : SP4)
The 33884 has four programmable switch sense inputs
(SP1- P4) to read switch-to-ground or switch-to-battery/
supply contacts. Transient battery/supply voltages greater
than 40 V must be clamped by an external device. Surface
mount 0805 MOVs and transient voltage suppressors (TVS)
are available in SOT-23 packages. The sensed input is
compared with an internal 4.0 V reference. When
programmed to sense switch-to-battery, sensed voltages
greater than 4.0 V are interpreted as a CLOSED switch, while
sensed voltages less than 4.0 V are interpreted as an OPEN
switch. The opposite holds true when inputs are programmed
to sense switch-to-ground. Further programming can set the
wetting currents or make the inputs Tri-State. Programming
methods are provided in the following section.
SWITCH-TO-BATTERY (SB1 AND SB2)
The two Switch-to-Battery (SB) pins sense inputs only.
Transient battery/supply voltages greater than 40 V must be
clamped by an external device. Surface mount 0805 MOVs
and transient voltage suppressors (TVS) are available in
SOT-23 packages.
The sensed input is compared with an internal 4.0 V
reference. Voltages greater than 4.0 V are interpreted as a
CLOSED switch, while sensed voltages less than 4.0 V are
interpreted as an OPEN switch. Programming can set wetting
currents or Tri-State the input. Programming methods are
provided in the following section.
SWITCH-TO-GROUND (SG1 : SG6)
The six Switch-to-Ground (SG) pins are inputs only. The
input is compared with the internal 4.0 V reference. Voltages
greater than 4.0 volts are interpreted as an OPEN switch.
Voltages less than 4.0 V are interpreted as a CLOSED
switch. Programming can set the wetting currents or Tri-State
the input. Programming methods are provided in the
following section.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33884EG | 制造商:Freescale Semiconductor 功能描述:SWITCH MONITOR INTERFACE 24SOIC |
| MCZ33884EGR2 | 功能描述:多路器开关 IC SW DETECT INTERFACE RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MCZ33887EK | 功能描述:马达/运动/点火控制器和驱动器 H-BRIDGE W/LD CUR FDBK RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MCZ33887EKR2 | 功能描述:马达/运动/点火控制器和驱动器 H-BRIDGE W/LD CUR FDBK RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MCZ33887EKR2DH | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:5.0 A H-Bridge with Load Current Feedback |
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