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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
Low Jitter: 160ps
P-P
)
at 8MHz (No PLL)
3mA Operating Current (8MHz)
13μA Operating Current (32kHz)
-40°C to +125°C Temperature Range
M
Silicon Oscillator with Reset Output
________________________________________________________________
Maxim Integrated Products
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.
1
GND
V
CC
RST/RST
1
5
E.C.
CLOCK
MAX7376
SOT23
TOP VIEW
2
3
4
Pin Configuration
Ordering Information
19-3475; Rev 0; 10/04
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
M A X7 3 7 6C _ _ _ T
-40
°
C to +125
°
C 5 SOT23-5
Open drain
M AX7376A_ _ _- T
-40
°
C to +125
°
C 5 SOT23-5
Active high
push-pull
M AX7376B_ _ _- T
-40
°
C to +125
°
C 5 SOT23-5
Active low
push-pull
Typical Application Circuit appears at end of data sheet.