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參數(shù)資料
| 型號： | PCA2000 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 32 kHz watch circuit with programmable adaptive motor pulse |
| 中文描述： | 32千赫的可編程自適應(yīng)脈沖馬達(dá)手表電路 |
| 文件頁數(shù)： | 10/19頁 |
| 文件大?。?/td> | 120K |
| 代理商： | PCA2000 |
2003 Dec 17
10
Philips Semiconductors
Product specification
32 kHz watch circuit with programmable
adaptive motor pulse
PCA2000; PCA2001
handbook, full pagewidth
MGW356
VDD
VP(mod)
VDD(mod)
VSS
VP(start)
tp(start)
t0
t1t1t1
t3
t2
t3
t2
t3
t3
t4
tstore
Vstore
Vpre-store
tpre-store
Fig.7 Supply voltage modulation for programming.
Checking memory content
The stored data of the OTP array can be checked bit wise
by measuring the supply current. The array word is
selected by the instruction state and the bit is addressed
by the shift register.
To read a word, the word is first selected (pulse
distance t
1
), and a logic 1 is written into the first cell of the
shift register (pulse distance t
3
). This logic 1 is then shifted
through the entire shift register (pulse distance t
2
), so that
it points with each clock pulse to the next bit.
If the addressed OTP cell contains a logic 1, a 30 k
resistor is connected between V
DD
and V
SS
, which
increases the supply current accordingly.
Figure 8 shows the supply voltage modulation for reading
word B, with the corresponding supply current variation for
word B = 110101 (sequence: first MSB and last LSB).
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| PCA200010AA | 32 kHz watch circuit with programmable adaptive motor pulse |
| PCA2000AA | 32 kHz watch circuit with programmable adaptive motor pulse |
| PCA2001 | 32 kHz watch circuit with programmable adaptive motor pulse |
| PCA200110AA | 32 kHz watch circuit with programmable adaptive motor pulse |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA2000_10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse |
| PCA200010AA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse |
| PCA2000AA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse |
| PCA2000CX8/5 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse |
| PCA2000CX8/5/1,025 | 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 32KHZ WATCH CIRCUIT RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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