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| 型号： | MAX3012EUP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/25页 |
| 文件大小： | 0K |
| 描述： | IC TRANSLATOR LEVEL 8CH 20-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 74 |
| 逻辑功能： | 转换器，单向，3态 |
| 位数： | 8 |
| 输入类型： | CMOS |
| 输出类型： | CMOS |
| 数据速率： | 35Mbps |
| 通道数： | 8 |
| 输出/通道数目： | 1 |
| 差分 - 输入:输出： | 无/无 |
| 传输延迟（最大）： | 8.5ns |
| 电源电压： | 1.65 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
Detailed Description
The MAX3000E/MAX3001E/MAX3002–MAX3012 logic-
level translators provide the level shifting necessary to
allow data transfer in a multivoltage system. Externally
applied voltages, VCC and VL, set the logic levels on
either side of the device. Logic signals present on the
VL side of the device appear as a higher voltage logic
signal on the VCC side of the device, and vice-versa.
The MAX3000E/MAX3001E/MAX3002/MAX3003 are
bidirectional level translators allowing data translation in
either direction (VL
VCC) on any single data line.
These devices use an architecture specifically
designed to be bidirectional without the use of a direc-
tion pin. The MAX3004–MAX3012 unidirectional level
translators level shift data in one direction (VL
→ VCC or
VCC
→ VL) on any single data line. The
MAX3000E/MAX3001E/ MAX3002–MAX3012 accept VL
from +1.2V to +5.5V. All devices have VCC ranging
from +1.65V to +5.5V, making them ideal for data trans-
fer between low-voltage ASICs/PLDs and higher volt-
age systems.
The MAX3000E/MAX3001E/MAX3002/MAX3004–
MAX3012 feature an output enable mode that reduces
VCC supply current to less than 2A, and VL supply
current to less than 2A when in shutdown. The
MAX3000E/MAX3001E have ±15kV ESD protection on
the VCC side for greater protection in applications that
route signals externally. The MAX3000E operates at a
guaranteed data rate of 230kbps; the MAX3001E oper-
ates at a guaranteed data rate of 4Mbps and the
MAX3002–MAX3012 are guaranteed with a data rate of
20Mbps of operation over the entire specified operating
voltage range.
Level Translation
For proper operation, ensure that +1.65V ≤ VCC ≤ +5.5V,
+1.2V ≤ VL ≤ +5.5V, and VL ≤ VCC. During power-up
sequencing, VL ≥ VCC does not damage the device.
During power-supply sequencing, when VCC is floating
and VL is powering up, up to 10mA current can be
sourced to each load on the VL side, yet the device does
not latch up.
The maximum data rate also depends heavily on the
load capacitance (see the
Typical Operating
Characteristics), output impedance of the driver, and
the operational voltage range (see the
Timing
Characteristics table).
Input Driver Requirements
The MAX3001E/MAX3002–MAX3012 architecture is
based on a one-shot accelerator output stage. See
Figure 5. Accelerator output stages are always in three-
state except when there is a transition on any of the
translators on the input side, either I/O VL or I/O VCC.
When there is such a transition, the accelerator stages
become active, charging (discharging) the capacitances
at the I/Os. Due to its bidirectional nature, both stages
become active during the one-shot pulse. This can lead
to some current feeding into the external source that is
driving the translator. However, this behavior helps to
speed up the transition on the driven side.
For proper full-speed operation, the output current
of a device that drives the inputs of the MAX3000E/
MAX3001E/MAX3002–MAX3012 should meet the fol-
lowing requirements:
MAX3000E (230kbps):
i > 1mA, Rdrv < 1kΩ
MAX3001E (4Mbps):
i > 107 x V x (C + 10pF)
MAX3002–MAX3012 (20Mbps):
i > 108 x V x (C + 10pF)
where i is the driver output current, V is the logic-supply
voltage (i.e., VL or VCC) and C is the parasitic capaci-
tance of the signal line.
Enable Output Mode (EN, EN A/B)
The MAX3000E/MAX3001E/MAX3002 and the MAX3004–
MAX3012 feature an EN input, and the MAX3003 has an
EN A/B input. Pull EN low to set the MAX3000E/
MAX3001E/MAX3002/MAX3004–MAX3012s’ I/O VCC1
through I/O VCC8 in three-state output mode, while I/O
VL1 through I/O VL8 have internal 6kΩ pulldown resistors.
Drive EN to logic-high (VL) for normal operation. The
MAX3003 is intended for bus multiplexing or bus switch-
ing applications. Drive EN A/B low to place channels 1B
through 4B in active mode, while channels 1A through
4A are in three-state mode. Drive EN A/B to logic-high
(VL) to enable channels 1A through 4A, while channels
1B through 4B remain in three-state mode.
±15kV ESD Protection
As with all Maxim devices, ESD-protection structures
are incorporated on all pins to protect against electro-
static discharges encountered during handling and
assembly. The I/O VCC lines have extra protection
against static discharge. Maxim’s engineers have
developed state-of-the-art structures to protect these
pins against ESD of ±15kV without damage. The ESD
structures withstand high ESD in all states: normal
operation, three-state output mode, and powered
down. After an ESD event, Maxim’s E versions keep
working without latchup, whereas competing products
can latch and must be powered down to remove
latchup.
+1.2V to +5.5V, ±15kV ESD-Protected, 0.1A,
35Mbps, 8-Channel Level Translators
MAX3000E/MAX3001E/MAX3002–MAX3012
Maxim Integrated
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3012EUP+ | 功能描述:转换 - 电压电平 1.2-5.5V .1uA 35Mbps 8Ch RoHS:否 制造商:Micrel 类型:CML/LVDS/LVPECL to LVCMOS/LVTTL 传播延迟时间:1.9 ns 电源电流:14 mA 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MLF-8 |
| MAX3012EUP+T | 功能描述:转换 - 电压电平 1.2-5.5V .1uA 35Mbps 8Ch RoHS:否 制造商:Micrel 类型:CML/LVDS/LVPECL to LVCMOS/LVTTL 传播延迟时间:1.9 ns 电源电流:14 mA 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MLF-8 |
| MAX3012EUP-T | 功能描述:转换 - 电压电平 RoHS:否 制造商:Micrel 类型:CML/LVDS/LVPECL to LVCMOS/LVTTL 传播延迟时间:1.9 ns 电源电流:14 mA 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MLF-8 |
| MAX3013 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:+1.2V to +3.6V, 0.1uA, 100Mbps, 8-Channel Level Translators |
| MAX3013EBP | 制造商:Maxim Integrated Products 功能描述:+1.2V TO +3.6V 0.1MICROAMP 100MBP - Rail/Tube |
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