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| 型號： | TDA8034HN/C1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC24 |
| 封裝： | 4 X 4 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT616-1, HVQFN-24 |
| 文件頁數(shù)： | 2/30頁 |
| 文件大小： | 265K |
| 代理商： | TDA8034HN/C1 |
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TDA8034HN
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3.1. — 5 September 2011
10 of 30
NXP Semiconductors
TDA8034HN
Smart card interface
8.8 Deactivation sequence
When a session ends, the microcontroller sets pin CMDVCCN HIGH. The TDA8034HN
then executes an automatic deactivation sequence by counting the sequencer back to the
inactive state (see Figure 8) as follows:
1. Pin RST is pulled LOW (t11).
2. The clock is stopped, pin CLK is LOW (t12).
3. Pins I/OUC, AUX1UC and AUX2UC are pulled LOW (t13).
4. VCC falls to 0 V (t14). The deactivation sequence is completed when VCC reaches its
inactive state.
5. VCC < 0.4 V (tdeac)
6. All card contacts become low-impedance to GND. However, pins I/OUC, AUX1UC
and AUX2UC remain pulled up to VDD using the 11 k resistor.
7. The internal oscillator returns to its low frequency mode.
Calculation of the time delays is as follows:
t11 = t10 + 3T / 64
t12 = t11 + T / 2
t13 = t11 + T
t14 = t11 + 3T / 2
tdeac = t11 + 3T / 2 + VCC fall time
OSCINT = internal oscillator.
Fig 7.
Activation sequence at t3
001aal140
CMDVCCN
XTAL1
VCC
I/O
ATR
CLK
> 200 ns
RSTIN
RST
I/OUC
OSCINT
t0
td(end) = tact
t1 = t2
td(start)
t4
low frequency
high frequency
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8034T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Smart card interface |
| TDA8034T/C1,112 | 功能描述:接口 - 專用 SMART CARD INTERFACE RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| TDA8034T/C1,118 | 功能描述:接口 - 專用 SMART CARD INTERFACE RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| TDA8035C1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Smart card interface externally by a resistor bridge |
| TDA8035HN | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Smart card interface externally by a resistor bridge |
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