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| 型號： | LC87F2932AU-CD-E |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 19/29頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8BIT 32K FLASH 64TQLP |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 芯體尺寸： | 8-位 |
| 速度： | 12MHz |
| 連通性： | SIO，UART/USART |
| 外圍設(shè)備： | PWM，WDT |
| 輸入/輸出數(shù)： | 59 |
| 程序存儲器容量： | 32KB（32K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 2K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.2 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 13x8b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | * |
| 包裝： | * |
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LC87F2932A
No.A1210-26/29
Characteristics of a Sample Main System Clock Oscillation Circuit
Given below are the characteristics of a sample main system clock oscillation circuit that are measured using a Our
designated oscillation characteristics evaluation board and external components with circuit constant values with which
the oscillator vendor confirmed normal and stable oscillation.
Table 1 Characteristics of a Sample Main System Clock Oscillator Circuit with a Ceramic Oscillator
Nominal
Frequency
Vendor
Name
Oscillator Name
Circuit Constant
Operating
Voltage Range
[V]
Oscillation
Stabilization Time
Remarks
C1
[pF]
C2
[pF]
Rf1
[
Ω]
Rd1
[
Ω]
typ
[ms]
max
[ms]
12MHz
MURATA
CSTCE12M0G52-R0
(10)
Open
680
3.0 to 5.5
0.05
0.15
Internal
C1, C2
8MHz
MURATA
CSTCE8M00G52-R0
(10)
Open
1k
2.5 to 5.5
0.13
0.4
Internal
C1, C2
CSTLS8M00G53-B0
(15)
Open
1k
2.5 to 5.5
0.12
0.4
4MHz
MURATA
CSTCR4M00G53-R0
(15)
Open
2.2k
2.2 to 5.5
0.07
0.2
Internal
C1, C2
CSTLS4M00G53-B0
(15)
Open
2.2k
2.2 to 5.5
0.05
0.15
The oscillation stabilization time refers to the time interval that is required for the oscillation to get stabilized after VDD
goes above the operating voltage lower limit (see Figure 4).
Characteristics of a Sample Subsystem Clock Oscillator Circuit
Given below are the characteristics of a sample subsystem clock oscillation circuit that are measured using a Our
designated oscillation characteristics evaluation board and external components with circuit constant values with which
the oscillator vendor confirmed normal and stable oscillation.
Table 2 Characteristics of a Sample Subsystem Clock Oscillator Circuit with a Crystal Oscillator
Nominal
Frequency
Vendor Name
Oscillator Name
Circuit Constant
Operating
Voltage
Range
[V]
Oscillation
Stabilization Time
Remarks
C3
[pF]
C4
[pF]
Rf2
[
Ω]
Rd2
[
Ω]
typ
[s]
max
[s]
32.768kHz
EPSON
TOYOCOM
MC-306
18
Open
560k
2.2 to.5.5
1.3
3.0
Applicable
CL value=
12.5pF
The oscillation stabilization time refers to the time interval that is required for the oscillation to get stabilized after the
instruction for starting the subclock oscillation circuit is executed and to the time interval that is required for the
oscillation to get stabilized after the HOLD mode is reset (see Figure 4).
Note: The components that are involved in oscillation should be placed as close to the IC and to one another as possible
because they are vulnerable to the influences of the circuit pattern.
Figure 1 CF Oscillator Circuit
Figure 2 XT Oscillator Circuit
Figure 3 AC Timing Measurement Point
0.5VDD
CF2
CF1
C3
Rd2
C4
X’tal
XT2
XT1
Rf2
C1
Rd1
C2
CF
Rf1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC87F2932AUFL68TBM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC87F2932AU-TQFP7-E | 制造商:ON Semiconductor 功能描述:8-BIT MICROCONTROLLER |
| LC87F2932AVU-QIP-E | 功能描述:8位微控制器 -MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| LC87F2C64A | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:8-bit 1-chip Microcontroller |
| LC87F2C64AU-QFP-H | 功能描述:8位微控制器 -MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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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