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參數(shù)資料
| 型號： | TDA8020HL/C1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-358-1, LQFP-32 |
| 文件頁數(shù)： | 6/28頁 |
| 文件大?。?/td> | 137K |
| 代理商： | TDA8020HL/C1 |
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2003 Nov 06
14
Philips Semiconductors
Product specication
Dual IC card interface
TDA8020HL
handbook, full pagewidth
tde
t10 t11
t12
t13
t14
t15
VUP
VCC
I/O
CLK
RST
START/STOP
FCE836
Fig.5 Deactivation sequence.
VCC buffers
Each card is supplied by a separate VCC buffer. Both
buffers are supplied by the same multimode capacitive
DC-to-DC converter.
In all modes (follower, doubler and tripler), the DC-to-DC
converter is able to deliver 80 mA over the whole VDD
range (2.7 to 6.5 V) or 120 mA if VDD >3V.
The current in each VCC buffer is limited internally to
around 90 mA. When one of the buffers reaches this limit,
an automatic deactivation sequence is performed.
Each VCC supply voltage should be decoupled by an ESR
capacitor with a value of between 100 and 200 nF. If the
card socket is not very close to the device, one capacitor
should be connected close to the device, and a second
one connected close to card contact C1.
Protections
The current on pin CLK is limited to within the range
+70 mA and
70 mA.
The current on pin RST is limited to within the range
+20 mA and
20 mA; if the current reaches this value with
RST LOW, then an emergency deactivation sequence is
performed, IRQ is pulled LOW and bit PROT is set in the
status register.
The current on pins I/O is limited to within the range
+15 mA and
15 mA.
The current on VCC is limited to 90 mA; if ICC reaches this
value, then an emergency deactivation sequence is
performed, IRQ is pulled LOW and bit PROT is set in the
status register.
In the event of overcurrent on VCC, card take-off during a
session, overheating, or overcurrent on RST, then the
TDA8020HL performs an automatic emergency
deactivation sequence on the corresponding card, resets
bit START/STOP and pulls pin IRQ LOW.
In the event of overheating or supply drop-out, or
DC-to-DC converter out of specification, the TDA8020HL
performs an automatic emergency deactivation sequence
on both cards, resets both bits START/STOP and pulls
pin IRQ LOW.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8023 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low power IC card interface |
| TDA8023TT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low power IC card interface |
| TDA8023TT/C1 | 制造商:NXP Semiconductors 功能描述:Cut Tape |
| TDA8023TT/C1,118 | 功能描述:輸入/輸出控制器接口集成電路 SMART CARD READER RoHS:否 制造商:Silicon Labs 產品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| TDA8023TT/C1118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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