參數(shù)資料
型號(hào): MSM64P155L-NGS-BK
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類(lèi): 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 0.066 MHz, MICROCONTROLLER, PQFP100
封裝: QFP-100
文件頁(yè)數(shù): 17/61頁(yè)
文件大?。?/td> 274K
代理商: MSM64P155L-NGS-BK
3-1
CHAPTER 3 CRYSTAL OSCILLATION CIRCUIT
3.1
Overview
The Crystal oscillation circuit, oscillating at 32.768 kHz, can be fine-adjusted with an
external capacitor, but since the phase of the power supply of MSM64P155 is reversed
against MSM64155A, location of the attachment position of an external capacitor CG
is placed between the VSS and OSC0 pin.
If RC oscillation is selected by mask option, use an external 1M
W resistor like the
MSM64155A.
3.2
Configuration of Crystal Oscillation Circuit
Figure 3-1 shows the configurations of the Crystal oscillation circuit both for MSM64155A
(mask ROM) and MSM64P155.
Time base clock
(32.768 kHz)
VDD
CG
OSC0
32.768 kHz
crystal
VDD
CD
Rf
VSSL
MSM64155A (Mask ROM)
32.768 kHz
Crystal oscillation circuit
Time base clock
(32.768 kHz)
CG
OSC0
32.768 kHz
crystal
VSS
CD
Rf
MSM64P155 (OTP version)
Logic power source
VSS
OSC1
(a)
Configuration of Crystal Oscillation Circuit for MSM64155A
(b)
Configuration of Crystal Oscillation Circuit for MSM64P155
Figure 3-1 Configurations of Crystal Oscillation Circuit
相關(guān)PDF資料
PDF描述
MSM64P155-NGS-BK 4-BIT, OTPROM, 0.035 MHz, MICROCONTROLLER, PQFP100
MSM64P155L-NGS-BK 4-BIT, OTPROM, 0.066 MHz, MICROCONTROLLER, PQFP100
MSM64P164-XXXGS-BK 4-BIT, OTPROM, 0.4 MHz, MICROCONTROLLER, PQFP80
MSM65352-XXXGS-BK 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP64
MSM6542-01MS-K 1 TIMER(S), REAL TIME CLOCK, PDSO20
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