General Description

The MAX7376 silicon oscillator with reset, is a replace-

ment for ceramic resonators, crystals, crystal oscillator

modules, and discrete reset circuits. The MAX7376 pro-

vides the primary clock source and reset function for

microcontrollers in 3V, 3.3V, and 5V applications. The

MAX7376 features a factory-programmed high-speed

oscillator and a microprocessor (µP) power-on-reset

(POR) supervisor.

Unlike typical crystal and ceramic resonator oscillator

circuits, the MAX7376 is resistant to vibration and EMI.

The high-output-drive current and absence of high-

impedance nodes make the oscillator less susceptible

to dirty or humid operating conditions. With a wide

operating temperature range as standard, the MAX7376

is a good choice for demanding home appliance,

industrial, and automotive environments.

The MAX7376 is available in factory-programmed fre-

quencies from 32.768kHz to 10MHz. See Table 2 for

standard frequencies and contact the factory for cus-

tom frequencies.

The MAX7376 is available in a 5-pin SOT23 package.

Refer to the MAX7382 data sheet for frequencies

≥10MHz. The MAX7376 standard operating tempera-

ture range is -40°C to +125°C. See the Applications

Information section for the extended operating temper-

ature range.

Applications

White Goods

Automotive

Consumer Products

Appliances and Controls

Handheld Products

Portable Equipment

Microcontroller (µC) Systems

Features

♦ 2.7V to 5.5V Operation

♦ Accurate Oscillator: 600kHz to 10MHz or 32kHz

♦ Reset Output Holds the µC in Reset for 100µs

After Clock Startup

♦ ±10mA Clock Output Drive Capability

♦ 2% Initial Accuracy

♦ ±50ppm/°C Temperature Coefficient

♦ 50% Duty Cycle

♦ 5ns Output Rise and Fall Time

♦ 3mA Operating Current (8MHz)

♦ 13µA Operating Current (32kHz)

♦ -40°C to +125°C Temperature Range

Silicon Oscillator with Reset Output

________________________________________________________________ Maxim Integrated Products

1

GND

RST/RST

15

E.C.

CLOCK

MAX7376

SOT23

TOP VIEW

2

3

4

Pin Configuration

Ordering Information

19-3475; Rev 0; 10/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Standard version is shown in bold.

The first letter after the part number designates the reset output

option. Insert the letter corresponding to the desired reset

threshold level from Table 1 in the next position. Insert the two-

letter code from Table 2 in the remaining two positions for the

desired frequency range. See Table 3 for standard part numbers.

PART

TEMP RANGE

PIN-

PACKAGE

RESET

OUTPUT

MAX7376C_ _ _-T -40

°C to +125°C5 SOT23-5 Open drain

MAX7376A_ _ _-T

-40

°C to +125°C5 SOT23-5

Active high

push-pull

MAX7376B_ _ _-T

-40

°C to +125°C5 SOT23-5

Active low

push-pull

Typical Application Circuit appears at end of data sheet.