MAX3397E 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX3397E

Dual Bidirectional Low-Level Translator in µDFN

Maxim Integrated 

Dual Bidirectional Low-Level

Translator in µDFN

Typical Operating Characteristics (continued)

(VCC = +3.3V, VL = +1.8V, RLOAD = 1MΩ, CLOAD = 15pF, TA = +25°C, data rate = 8Mbps, unless otherwise noted.)

I/O VL_

RAIL-TO-RAIL DRIVING

(DRIVING ONE I/O VL_)

MAX3397E toc13

1V/div

I/O VL_

I/O VCC_

EXITING SHUTDOWN MODE

MAX3397E toc14

1V/div

2V/div

I/O VCC_

1V/div

EN

1V/div

20ns/div

2µs/div

Pin Description

PIN NAME

FUNCTION

1 I/O VCC2 Input/Output 2. Referenced to VCC.

2

GND Ground

3

VL

Logic-Input Voltage. The supply voltage range is +1.2V ≤ VL ≤ +5.5V. Bypass this supply with a 0.1µF capacitor

located as close as possible to the input.

4

I/O VL2 Input/Output 2. Referenced to VL.

5

I/O VL1 Input/Output 1. Referenced to VL.

6

EN Enable Input. Drive EN high to enable the device. Drive EN low to put the device in shutdown mode.

7

VCC

VCC Input Voltage. The supply voltage range is +1.65V ≤ VL ≤ +5.5V. Bypass this supply with a 0.1µF capacitor

located as close as possible to the input. A 1µF ceramic capacitor is recommended for full ESD protection.

8 I/O VCC1 Input/Output 1. Referenced to VCC.

Detailed Description

The MAX3397E bidirectional, ESD-protected level

translator provides 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. A logic-low signal present on

the VL side of the device appears as a logic-low signal

on the VCC side of the device, and vice versa. The

device uses a transmission-gate-based design (see the

Functional Diagram) to allow data translation in either

direction (VL ↔ VCC) on any single data line. The

MAX3397E accepts VL from +1.2V to +5.5V and VCC

from +1.65V to +5.5V, making the device ideal for data

transfer between low-voltage ASICs/PLDs and higher

voltage systems.

The MAX3397E features a shutdown mode that

reduces the supply current to less than 1µA, thermal

short-circuit protection, and ±15kV ESD protection on

the VCC side for greater protection in applications that

route signals externally. The device operates at a guar-

anteed data rate of 8Mbps over the entire specified

operating voltage range. Within specific voltage

domains, higher data rates are possible. See the

Timing Characteristics table.

6 _______________________________________________________________________________________

Share Link: