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WF5091A 데이터시트 PDF




NPC에서 제조한 전자 부품 WF5091A은 전자 산업 및 응용 분야에서
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부품번호 WF5091A 기능
기능 32kHz output Crystal Oscillator IC
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WF5091A 데이터시트, 핀배열, 회로
WF5091A
32kHz output Crystal Oscillator IC with Frequency Adjustment Function
OVERVIEW
The WF5091A is a 32.768kHz output crystal oscillator module IC with built-in frequency adjustment functions by EEPROM. The
WF5091Ais ideal for wide range of operating supply voltage, low current consumption, low jitter, crystal oscillator module.
FEATURES
Oscillation and output frequency: 32.768kHz
Wide range of operating supply voltage: 1.2 to 5.5V
Operating temperature of oscillation operation: -40 to +85°C
Low current consumption: 1Atyp. (VDD=3.3V, no load)
CMOS input / output
±0.4mAoutput drive capability (VDD=3.3V)
f0 adjustment function by EEPROM (3-wire serial interface)
Output disable function
ORDERING INFORMATION
Device
Package
WF5091A
Wafer form
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WF5091A pdf, 반도체, 판매, 대치품
WF5091A
Electrical Characteristics
DC Characteristics
VDD=1.2 to 5.5V, VSS=0V, Ta=-40 to +85°C, CLOUT=15pF unless otherwise noted.
Parameter
Symbol
Conditions
Operating current consumption
Current consumption in boot
function
Current consumption in disable
function
IDD1
IDD2
IBOOT
IDIS
Measurement circuit 1, CLOUT=0pF
INHN=“H”, VDD=3.3V
Measurement circuit 1, CLOUT=0pF
INHN=“H”, VDD=5.5V
Measurement circuit 2, CLOUT=15pF
INHN=“H”, VDD=3.3V
Measurement circuit 2, CLOUT=15pF
INHN=“H”, VDD=5.5V
Measurement circuit 1, boot*1
CLOUT=0pF, VDD=3.3V
Measurement circuit 1, INHN=Low, VDD=3.3V
High-level output voltage
Low-level output voltage
Measurement circuit 4, IOH=-0.4mA
VOH
1.5VVDD5.5V
Measurement circuit 4, IOH=-0.1mA
1.2VVDD<1.5V
Measurement circuit 4, IOL=0.4mA
VOL
1.5VVDD5.5V
Measurement circuit 4, IOL=0.1mA
1.2VVDD<1.5V
Measurement circuit 5, INHN pin
High-level input voltage 1
VIH1
1.2VVDD<1.5V
Measurement circuit 5, INHN pin
1.5VVDD5.5V
Measurement circuit 5, INHN pin
Low-level input voltage 1
VIL1
1.2VVDD<1.5V
Measurement circuit 5, INHN pin
1.5VVDD5.5V
High-level input voltage 2
VIH2
Measurement circuit 5, VPPpin, Ta=25°C
VDD=3.0 to 3.6V
Low-level input voltage 2
VIL2
Measurement circuit 5, VPPpin, Ta=25°C
VDD=3.0 to 3.6V
VPP pull-down resistor
Rpd
*1. Boot function operates from oscillation start to 0.5s (tsta+0.5sec) after applying power supply.
Rating
MIN TYP MAX
1.0 2.0
Unit
1.7 3.2
A
2.7 3.7
4.4 5.9
1.5 2.5 A
0.9 1.5 A
VDD-0.4
VDD-0.4
V
0.4 V
0.4 V
0.8VDD
0.7VDD
0.2VDD
0.3VDD
1.8VDD
1.3VDD
100
V
V
V
V
k
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WF5091A 전자부품, 판매, 대치품
WF5091A
FUNCTIONAL DESCRIPTION
INHN Function
Q outputs 32.768kHz when INHN connects HIGH level. Q outputs Hi-Z and the oscillator circuit works when INHN connects LOW level.
Oscillation does not stop.Always ensure to input VIH1 or VIL1 to INHN.
INHN
HIGH
LOW
OPEN
Q
32.768kHz
Hi-Z
-
Oscillator
Operating
Operating
-
Remarks
-
-
Prohibit
EEPROM Program Specification
Serial interface only for an EEPROM program
The WF5091A transfers data using a 3-wire serial interface only for an EEPROM. Oscillation frequency can be adjusted by setting up
oscillation part capacitor using this serial interface.
EEPROM read/write in serial interface mode is limited to VDD=3.0 to 3.6V.
Timing chart of serial interface
1920V
VPP
Serial I/F
INHN
(SCLK)
Q
(SDATA)
WE MC D1 D0 X C6 C5 C4 C3 C2 C1 C0
EEPROM write mode
1.8VDD7V
VPP
Serial I/F
INHN
(SCLK)
Q
(SDATA)
WE MC D1 D0 HiZ C6 C5 C4 C3 C2 C1 C0
EEPROM data output
EEPROM read mode
When VPP input voltage rise above VIH2, the IC enters serial interface mode. In serial interface mode, INHN is the clock input (SCLK),
and Q is the data input /output (SDATA).
In EEPROM write mode, VPP input voltage should be VPPW (19 to 20V), and SDATAis written in HIGH-level of SCLK.
In EEPROM read mode, VPP input voltage should be VPPR (1.8VDD to 7.0V), and EEPROM data is output on the falling edge of the 5th
clock pulse of SCLK.
When the VPP input voltage falls bellow VIH2 or open, normal operation resumes.*1
*1. When the VPP input voltage rises above 7V, data may be rewritten.
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WF5091A

32kHz output Crystal Oscillator IC

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