參數(shù)資料
型號(hào)： CY7C67200
廠商： Cypress Semiconductor Corp.
英文描述： EZ-OTG Programmable USB On-The-Go Host/Peripheral Controller(EZ-OTG可編程USB On-The-Go主機(jī)/外圍設(shè)備控制器)
中文描述： 的EZ - OTG公司可編程的USB On - The - Go的主機(jī)/外設(shè)控制器（的EZ - OTG公司可編程的USB On - The - Go的主機(jī)/外圍設(shè)備控制器）
文件頁(yè)數(shù)： 6/82頁(yè)
文件大小： 1719K
代理商： CY7C67200
CY7C67200
Document #: 38-08014 Rev. *F
Page 6 of 82
5.9.1
Meets OTG Supplement Requirements, see Table 14-2,
“DC Characteristics: Charge Pump,” on page 70.
Charge Pump Features
5.9.2
Charge Pump Pins
5.10
EZ-OTG has an on-chip power booster circuit for use with
power supplies that range between 2.7V and 3.6V. The
booster circuit boosts the power to 3.3V nominal to supply
power for the entire chip. The booster circuit requires an
external inductor, diode, and capacitor. During power down
mode, the circuit is disabled to save power.
Figure 5-2
shows
how to connect the booster circuit.
Booster Interface
Component details:
L1: Inductor with inductance of 10 μH and a current rating
of at least 250 mA
D1: Schottky diode with a current rating of at least 250 mA
C1: Tantalum or ceramic capacitor with a capacitance of at
least 2.2 μF
Figure 5-3
shows how to connect the power supply when the
booster circuit is not being used.
5.10.1
Booster Pins
5.11
The recommended crystal circuit to be used with EZ-OTG is
shown in
Figure 5-4
. If an oscillator is used instead of a crystal
circuit, connect it to XTALIN and leave XTALOUT uncon-
nected. For further information on the crystal requirements,
see Table 13-1, “Crystal Requirements,” on page 69.
Crystal Interface
Table 5-11. Charge Pump Interface Pins
Pin Name
OTGVBUS
CSwitchA
CSwitchB
Pin Number
C1
D1
D2
Figure 5-2. Power Supply Connection With Booster
BOOSTVcc
VSWITCH
VCC
AVCC
C1
D1
L1
3.3V
2.7V to 3.6V
Power Supply
Figure 5-3. Power Supply Connection Without Booster
Table 5-12. Charge Pump Interface Pins
Pin Name
BOOSTVcc
VSWITCH
Pin Number
F1
E2
Figure 5-4. Crystal Interface
BOOSTVcc
VSWITCH
VCC
AVCC
3.0V to 3.6V
Power Supply
Y1
C1 = 22 pF
C2 = 22 pF
CY7C67200
XTALIN
XTALOUT
12MHz
Parallel Resonant
Fundamental Mode
500uW
20-33pf ±5%
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CY7C672001-48BAXI 功能描述:8位微控制器 -MCU CY7C672001-48BAXI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
CY7C672001-48BAXIT 功能描述:8位微控制器 -MCU CY7C672001-48BAXIT RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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