- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383496 > MAX7377 (Maxim Integrated Products, Inc.) Silicon Oscillator with Low-Power Frequency Switching PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX7377 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Silicon Oscillator with Low-Power Frequency Switching |
| 中文描述： | 硅振蕩器，提供低功耗頻率切換 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 615K |
| 代理商： | MAX7377 |
M
Silicon Oscillator with Low-Power
Frequency Switching
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= 5V, T
A
= +25
°
C, unless otherwise noted.)
Detailed Description
The MAX7377 is a dual-speed clock generator for
microcontrollers (μCs) and UARTs in 3V, 3.3V, and 5V
applications. (Figure 1). The MAX7377 is a replacement
for two crystal oscillator modules, crystals, or ceramic
resonators. The high-speed clock frequency is factory
trimmed to specific values. A variety of popular stan-
dard frequencies are available. The low-speed clock
frequency is fixed at 32.768kHz (Table 1). No external
components are required for setting or adjusting the
frequency.
Supply Voltage
The MAX7377 has been designed for use in systems
with nominal supply voltages of 3V, 3.3V, or 5V and is
specified for operation with supply voltages in the 2.7V
to 5.5V range. See the
Absolute Maximum Ratings
sec-
tion for limit values of power-supply and pin voltages.
Oscillator
The clock output is a push-pull configuration and is
capable of driving a ground-connected 500
or a posi-
tive-supply-connected 250
load to within 400mV of
either supply rail. The clock output remains stable over
the full operating voltage range and does not generate
short output cycles when switching between high- and
low-speed modes. A typical startup characteristic is
shown in the
Typical Operating Characteristics
.
Clock-Speed Select Input
The MAX7377 uses a logic input pin, SPEED, to set
clock speed. Take this pin low to select slow clock
speed (nominally 32.768kHz) or high to select full clock
speed. The SPEED input can be strapped to V
CC
or to
GND to select fast or slow clock speed, or connected
to a logic output (such as a processor port) used to
change clock speed on the fly. If the SPEED input is
connected to a processor port that powers up in the
Pin Description
PIN
1
2
NAME
CLOCK
GND
FUNCTION
Push-Pull Clock Output
Ground
Clock-Speed Select Input. Drive SPEED low to select the 32kHz fixed frequency. Drive SPEED high to
select factory-trimmed frequency.
Positive Supply Voltage. Bypass V
CC
to GND with a 0.1μF capacitor.
Must be Externally Connected to V
CC
3
SPEED
4
5
V
CC
E.C.
20
μ
s/div
MAX7377 toc18
LOW-SPEED TO HIGH-SPEED
TRANSITION
CLOCK
SPEED
400ns/div
MAX7377 toc19
LOW-SPEED TO HIGH-SPEED
TRANSISTION (EXPANDED SCALE)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX7403CPA | Analog Filter |
| MAX7440 | 6-Channel Integrated Video Reconstruction Filters |
| MAX7441 | 6-Channel Integrated Video Reconstruction Filters |
| MAX7442 | 6-Channel Integrated Video Reconstruction Filters |
| MAX7419 | 5th-Order.Lowpass.Switched-Capacitor Filters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7377AXMG-T | 制造商:Maxim Integrated Products 功能描述:FREQUENCY SWITCHING SILICON OSCILLATOR - Tape and Reel |
| MAX7377AXOK-T | 制造商:Maxim Integrated Products 功能描述:FREQUENCY SWITCHING SILICON OSCILLATOR - Tape and Reel |
| MAX7377AXQT-T | 制造商:Maxim Integrated Products 功能描述:FREQUENCY SWITCHING SILICON OSCILLATOR - Tape and Reel |
| MAX7377AXQW-T | 制造商:Maxim Integrated Products 功能描述:FREQUENCY SWITCHING SILICON OSCILLATOR - Tape and Reel |
| MAX7377AXRD | 制造商:Maxim Integrated Products 功能描述:FREQUENCY SWITCHING SILICON OSCILLA - Cut Tape Product |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。